Updated web pages.

git-svn-id: https://svn.code.sf.net/p/jode/code/trunk@1239 379699f6-c40d-0410-875b-85095c16579e
branch_1_1
hoenicke 25 years ago
parent 7a3d90542b
commit edc69e287a
  1. 146
      jode/doc/applet.html
  2. 36
      jode/doc/applet.php
  3. 90
      jode/doc/bluesky.html
  4. 72
      jode/doc/bluesky.php
  5. 92
      jode/doc/download.html
  6. 94
      jode/doc/download.html.in
  7. 40
      jode/doc/download.php
  8. 14
      jode/doc/footer.inc
  9. 42
      jode/doc/header.inc
  10. 97
      jode/doc/history.html
  11. 23
      jode/doc/history.php
  12. 131
      jode/doc/index.html
  13. 69
      jode/doc/index.php
  14. 137
      jode/doc/jode.html
  15. 574
      jode/doc/license.html
  16. 15
      jode/doc/license.php
  17. 117
      jode/doc/links.html
  18. 62
      jode/doc/links.php
  19. 115
      jode/doc/menu.inc
  20. 111
      jode/doc/usage.html
  21. 230
      jode/doc/usage.php

@ -2,98 +2,96 @@
<html> <html>
<head> <head>
<title>Java Optimize and Decompile Environment (JODE)</title> <title>Java Optimize and Decompile Environment (JODE)</title>
<meta name="robots" content="noindex"> <meta name="date" content="2000-06-30">
<meta name="date" content="1999-10-24"> <meta name="description" content="JODE - Java Optimize and Decompile Environment.">
<meta name="author" content="Jochen Hoenicke">
<meta name="keywords" content="jode, java, decompiler, obfuscator, deobfuscator, reverse engineering, free, GPL">
</head> </head>
<body> <BODY bgcolor=#FFFFFF topmargin="0" bottommargin="0" leftmargin="0" rightmargin="0" marginheight="0" marginwidth="0">
<table cellpadding=4 cellspacing=1 width=100%> <table cellpadding=4 cellspacing=1 width=100%>
<tr> <tr><td>
<td></td> </td>
<td> <img src="jode-logo.gif" alt="JODE" width=286 height=110></td> <td> <img src="jode-logo.gif" alt="JODE" width=286 height=110></td>
</tr> </tr>
<tr> <tr>
<td valign="top"> <td valign="top">
<B><a href="http://www.informatik.uni-oldenburg.de/~delwi">Homepage</a></B> <table cellspacing=0 cellpadding=3 width=100% border=0 bgcolor=eeeef8>
<br><br> <tr bgcolor="7272cc">
<a href="jode.html"> <td align="center"><font color="ffffff"><b>Jode</b></font></td></tr>
<B>Jode</B></a> <tr><td align="right">
<ul> <a href="./"><B>Home</B></a><br>
<li>Test It Online</li> <a href="http://sourceforge.net/project/?group_id=3790">Project&nbsp;page</a><br>
<li><a href="download.html">Download</a></li> <br>
<li><a href="usage.html">Usage</a></li> <a href="./applet.html">Applet</a><br>
<li><a href="license.html">License</a></li> <a href="./download.html">Download</a><br>
<li><a href="history.html">History</a></li> <a href="./usage.html">Documentation</a><br>
<li><a href="links.html">Links</a></li> <a href="./license.html">License</a><br>
<li><a href="bluesky.html">Blue Sky</a></li> <a href="./history.html">History</a><br>
</ul> <a href="./links.html">Links</a><br>
<a href="./bluesky.html">Blue&nbsp;Sky</a><tr bgcolor="7272cc">
<td align="center"><font color="ffffff"><b>Feedback</b></font></td></tr>
<tr><td align="right">
<a href="http://sourceforge.net/bugs/?group_id=3790">Bug&nbsp;Tracking</a><br>
<a href="http://sourceforge.net/forum/?group_id=3790">Public&nbsp;Forums</a><br>
<a href="http://lists.sourceforge.net/mailman/listinfo/jode-users">Mailing&nbsp;List</a><br>
<a href="http://sourceforge.net/sendmessage.html?touser=18252">Private&nbsp;Mail</a><tr bgcolor="7272cc">
<td align="center"><font color="ffffff"><b>Download</b></font></td></tr>
<tr><td align="right">
<a href="ftp://jode.sourceforge.net/pub/jode/">FTP&nbsp;server</a><br>
<a href="http://sourceforge.net/project/filelist.html?group_id=3790">Source&nbsp;releases</a></td></tr>
<tr bgcolor="ffffff"><td align="center"><br>Powered by <br>
<a href="http://sourceforge.net"><img src="http://sourceforge.net/sflogo.html?group_id=3790&type=1" border=0 width=88 height=31 alt="SourceForge"></a><br>
<br>Best viewed with <br>
<a href="http://www.anybrowser.org/campaign/"><img src="a-logo.gif" border=0 width=88 height=31 alt="Any Browser"></a><br>
</td></tr></table>
</td> </td>
<td> <td valign="top">
<h1>The <i>JODE</i> Applet</h1> <h1>The <i>JODE</i> Applet</h1>
Please be patience, loading the applet may take some time.<br><br>
<center>
<applet code="jode/Applet.class" archive="jode-applet.jar" width=540 height=400> <applet code="jode/Applet.class" archive="jode-applet.jar" width=540 height=400>
<param name=classpath <param name=pagecolor value="ffffff">
value="http://www.informatik.uni-oldenburg.de/~mw/plasma.jar"> <param name=classpath value="http://jode.sourceforge.net/load.html/http%3a//www.informatik.uni-oldenburg.de/~mw/plasma.jar">
<param name=class value="PlasmaApplet"> <param name=class value="PlasmaApplet">
<p>Sorry you need a java enabled browser to test a java applet ;-)</p> <p>Sorry you need a java enabled browser to test a java applet ;-)</p>
<p>Don't read the rest, it only contains information about the applet.</p> <p>Don't read the rest, it only contains information about the applet.</p>
</applet><br><br> </applet>
</center><br>
Press the start button to decompile <a Press the start button to decompile <a
href="http://www.informatik.uni-oldenburg.de/~mw/">Michael</a>'s <a href="http://www.informatik.uni-oldenburg.de/~mw/plasma.html">Michael's
href="http://www.informatik.uni-oldenburg.de/~mw/plasma.html">Plasma Plasma applet</a> (and give the decompiler some time to download the
applet</a>. You may change the classpath and class name to point to a jar file). <br><br>
class file of your choice. But note that most browsers don't allow
loading files from a different server.<br><br>
Save probably doesn't work, because it is forbidden by the browser.<br><br>
You may give multiple entries in the class path field separated by a You may change the classpath to point to a zip or jar file of your
comma. The components may be local or remote zip or jar files or choice, using a similar syntax. Use <code>%3a</code> instead of a
directories. Note that browsers deny accesses to different hosts or colon `:' in the url. You can also point it to a directory containing
local files that are not in a subdirectory of the applet the class-files (include a slash `/' at the end in this case), but
directory.<br><br> this is not recommended, since it is <i>very</i> slow. You may give
multiple entries in the class path field separated by a comma.<br><br>
You can't use this applet for local files; the class files must be on
a server that is accessible from sourceforge. You can try to give
local filenames directly without the load.html wrapper, but that is
probably forbidden by your browser. Most browser only allow loading
files from the same server as the applet, and this is the reason why
you have to use such a cryptic URL.<br><br>
<h1>Removing security restrictions under Internet Explorer</h1> Save probably doesn't work, because it is forbidden by your browser.<br><br>
</td></tr>
<p>This information was submitted by <a
href="mailto:PopescuM@health.missouri.edu">Mihail Popescu
<PopescuM@health.missouri.edu></a>. Please note that this will
<i>give all applets on our web server full access to your computer</i>,
so use it at your own risk.</p>
<p>Go to the View/Internet Options... dialog<br>
Select the "Security" tab</p>
<ul>
<li>Set "Zone:" to "Trusted sites zone"</li>
<li>Click "Add Sites..."
<ul><li>Add http://www.informatik.uni-oldenburg.de</li>
<li>Uncheck "Requires server verificaton..."</li>
<li>Click "OK"</li>
</ul></li>
<li>Check "Custom (for expert users)"</li>
<li>Click "Settings..."
<ul><li>Under Java/Java permissions, check "Custom"</li>
<li>Click "Java Custom Settings"
<ul><li>Select "Edit Permissions" tab</li>
<li>Under "Unsigned Content"/"Run Unsigned Content", make sure
"Run in sandbox" is checked and then check all the "Enable"
buttons under "Additional Unsigned Permissions"</li>
<li>Click "OK"</li>
</ul></li>
<li>Click "OK"</li>
</ul></li>
<li>Click "OK"</li>
</ul>
</td>
</table> </table>
<TABLE width="100%" border="0" cellspacing="0" cellpadding="2" bgcolor="737b9c">
<TR>
<TD align="center"><FONT color="#ffffff"><SPAN class="titlebar">
All trademarks and copyrights on this page are properties of their respective owners. <br>
Last updated on 8-May-2000,
Copyright &copy; 1998-2000 by Jochen Hoenicke.</SPAN></FONT>
</TD>
</TR>
</TABLE>
<hr> </BODY>
</HTML>
<p><A HREF="mailto:Jochen.Hoenicke@Informatik.Uni-Oldenburg.DE">
http://www.informatik.uni-oldenburg.de/~delwi/jode/applet.html</A>, last
updated on <em>24-Okt-1999</em>.</p>
</body>
</html>

@ -0,0 +1,36 @@
<?php require("header.inc"); ?>
<h1>The <i>JODE</i> Applet</h1>
Please be patience, loading the applet may take some time.<br><br>
<center>
<applet code="jode/Applet.class" archive="jode-applet.jar" width=540 height=400>
<param name=pagecolor value="ffffff">
<param name=classpath value="http://jode.sourceforge.net/load.php/http%3a//www.informatik.uni-oldenburg.de/~mw/plasma.jar">
<param name=class value="PlasmaApplet">
<p>Sorry you need a java enabled browser to test a java applet ;-)</p>
<p>Don't read the rest, it only contains information about the applet.</p>
</applet>
</center><br>
Press the start button to decompile <a
href="http://www.informatik.uni-oldenburg.de/~mw/plasma.html">Michael's
Plasma applet</a> (and give the decompiler some time to download the
jar file). <br><br>
You may change the classpath to point to a zip or jar file of your
choice, using a similar syntax. Use <code>%3a</code> instead of a
colon `:' in the url. You can also point it to a directory containing
the class-files (include a slash `/' at the end in this case), but
this is not recommended, since it is <i>very</i> slow. You may give
multiple entries in the class path field separated by a comma.<br><br>
You can't use this applet for local files; the class files must be on
a server that is accessible from sourceforge. You can try to give
local filenames directly without the load.php wrapper, but that is
probably forbidden by your browser. Most browser only allow loading
files from the same server as the applet, and this is the reason why
you have to use such a cryptic URL.<br><br>
Save probably doesn't work, because it is forbidden by your browser.<br><br>
<?php require("footer.inc"); ?>

@ -2,35 +2,51 @@
<html> <html>
<head> <head>
<title>Java Optimize and Decompile Environment (JODE)</title> <title>Java Optimize and Decompile Environment (JODE)</title>
<meta name="description" content="The home page of jode, my Java decompiler."> <meta name="date" content="2000-06-30">
<meta name="description" content="JODE - Java Optimize and Decompile Environment.">
<meta name="author" content="Jochen Hoenicke"> <meta name="author" content="Jochen Hoenicke">
<meta name="robots" content="noindex"> <meta name="keywords" content="jode, java, decompiler, obfuscator, deobfuscator, reverse engineering, free, GPL">
<meta name="robots" content="nofollow">
<meta name="date" content="1999-10-24">
</head> </head>
<body> <BODY bgcolor=#FFFFFF topmargin="0" bottommargin="0" leftmargin="0" rightmargin="0" marginheight="0" marginwidth="0">
<table cellpadding=4 cellspacing=1 width=100%> <table cellpadding=4 cellspacing=1 width=100%>
<tr> <tr><td>
<td></td> </td>
<td> <img src="jode-logo.png" alt="JODE" width=286 height=110></td> <td> <img src="jode-logo.gif" alt="JODE" width=286 height=110></td>
</tr> </tr>
<tr> <tr>
<td valign="top"> <td valign="top">
<B><a href="http://www.informatik.uni-oldenburg.de/~delwi">Homepage</a></B> <table cellspacing=0 cellpadding=3 width=100% border=0 bgcolor=eeeef8>
<br><br> <tr bgcolor="7272cc">
<a href="jode.html"><B>Jode</B></a> <td align="center"><font color="ffffff"><b>Jode</b></font></td></tr>
<ul> <tr><td align="right">
<li><a href="applet.html">Test It Online</a></li> <a href="./"><B>Home</B></a><br>
<li><a href="download.html">Download</a></li> <a href="http://sourceforge.net/project/?group_id=3790">Project&nbsp;page</a><br>
<li><a href="usage.html">Usage</a></li> <br>
<li><a href="license.html">License</a></li> <a href="./applet.html">Applet</a><br>
<li><a href="links.html">Links</a></li> <a href="./download.html">Download</a><br>
<li><a href="history.html">History</a></li> <a href="./usage.html">Documentation</a><br>
<li>Blue Sky</li> <a href="./license.html">License</a><br>
</ul> <a href="./history.html">History</a><br>
<a href="./links.html">Links</a><br>
<a href="./bluesky.html">Blue&nbsp;Sky</a><tr bgcolor="7272cc">
<td align="center"><font color="ffffff"><b>Feedback</b></font></td></tr>
<tr><td align="right">
<a href="http://sourceforge.net/bugs/?group_id=3790">Bug&nbsp;Tracking</a><br>
<a href="http://sourceforge.net/forum/?group_id=3790">Public&nbsp;Forums</a><br>
<a href="http://lists.sourceforge.net/mailman/listinfo/jode-users">Mailing&nbsp;List</a><br>
<a href="http://sourceforge.net/sendmessage.html?touser=18252">Private&nbsp;Mail</a><tr bgcolor="7272cc">
<td align="center"><font color="ffffff"><b>Download</b></font></td></tr>
<tr><td align="right">
<a href="ftp://jode.sourceforge.net/pub/jode/">FTP&nbsp;server</a><br>
<a href="http://sourceforge.net/project/filelist.html?group_id=3790">Source&nbsp;releases</a></td></tr>
<tr bgcolor="ffffff"><td align="center"><br>Powered by <br>
<a href="http://sourceforge.net"><img src="http://sourceforge.net/sflogo.html?group_id=3790&type=1" border=0 width=88 height=31 alt="SourceForge"></a><br>
<br>Best viewed with <br>
<a href="http://www.anybrowser.org/campaign/"><img src="a-logo.gif" border=0 width=88 height=31 alt="Any Browser"></a><br>
</td></tr></table>
</td> </td>
<td> <td valign="top">
<h1>Blue Sky</h1> <h1>Blue Sky</h1>
<p>This section contains features that I think would be great to have, <p>This section contains features that I think would be great to have,
@ -60,7 +76,7 @@ names the variable after the type with a unifying number appended. A
method containing very much objects of the same type looks very method containing very much objects of the same type looks very
ugly. </p> ugly. </p>
<p>My plans here are to look at the assignments. If we have locals in <p>My plan is looking at the assignments. If we have locals in
assignments assignments
<pre> <pre>
int l_1 = array.length int l_1 = array.length
@ -81,7 +97,7 @@ weighted hints and constructing the name in an intelligent way. </p>
<h2>Better deobfuscation features</h2> <h2>Better deobfuscation features</h2>
<p>First there should be a good Renamer: Methods that simply <p>First there should be a good Renamer: Methods that simply
return a fields value should be renamed to get<i>FieldName</i>. return a field value should be renamed to get<i>FieldName</i>.
Fields should be named after their type, maybe also by assignments Fields should be named after their type, maybe also by assignments
(see section about local variable names).</p> (see section about local variable names).</p>
@ -97,15 +113,21 @@ it should change the parameter according to the rename function. </p>
<p>It would be nice if the decompiler could merge the javadoc comments <p>It would be nice if the decompiler could merge the javadoc comments
into the class file. More and more people use javadoc to comment the into the class file. More and more people use javadoc to comment the
public api of their java classes. It shouldn't be too difficult to public api of their java classes. It shouldn't be too difficult to
take them and back into the java code. </p> copy them back into the java code. </p>
</td>
</table>
<hr>
<p><A HREF="mailto:Jochen.Hoenicke@Informatik.Uni-Oldenburg.DE"> <p>This doesn't need to be built into the decompiler. A script that takes
http://www.informatik.uni-oldenburg.de/~delwi/jode/jode.html</A>, last the javadoc pages and the decompiled code can easily merge them.</p>
updated on <em>24-Okt-1999</em>.</p> </td></tr>
</table>
</body> <TABLE width="100%" border="0" cellspacing="0" cellpadding="2" bgcolor="737b9c">
</html> <TR>
<TD align="center"><FONT color="#ffffff"><SPAN class="titlebar">
All trademarks and copyrights on this page are properties of their respective owners. <br>
Last updated on 8-May-2000,
Copyright &copy; 1998-2000 by Jochen Hoenicke.</SPAN></FONT>
</TD>
</TR>
</TABLE>
</BODY>
</HTML>

@ -0,0 +1,72 @@
<?php require("header.inc"); ?>
<h1>Blue Sky</h1>
<p>This section contains features that I think would be great to have,
but are also very hard to implement. The name of the section is
inspired, by <a
href="http://www.mozilla.org/blue-sky/">Mozilla</a>.</p>
<p>Currently this are all my own ideas. But if you send me an idea
for an interesting feature, I will add it to this list.</p>
<h2><i>Out</i>line inlined methods</h2>
<p>If java gets called with `<code>-O</code>' switch, it inlines methods,
that are private, final, or static and contain no loops. When
decompiling this it sometimes produces really ugly code. The right
way to solve this would be to <i>out</i>line the code again. This is
possible but requires to find the inlined method. </p>
<p>The name `outline' was suggested by <a
href="http://www.informatik.uni-oldenburg.de/~mw">Michael</a>.
</p>
<h2>Better names of local variables</h2>
<p>The local variable naming is very stupid. Even with pretty it just
names the variable after the type with a unifying number appended. A
method containing very much objects of the same type looks very
ugly. </p>
<p>My plan is looking at the assignments. If we have locals in
assignments
<pre>
int l_1 = array.length
String l_2 = object.getName()
</pre>
we could name them "length" and "name". If we
have assignments:
<pre>
MenuItem local_1 = new MenuItem("Open");
MenuItem local_2 = new MenuItem("Save");
</pre>
good names would be <code>miOpen</code> and <code>miSave</code>. </p>
<p>It is currently possible to assign a <i>(hint name,type)</i> pair
to a local. If the type matches, the local will be named after
<i>hint name</i>. This could be extended by giving them several
weighted hints and constructing the name in an intelligent way. </p>
<h2>Better deobfuscation features</h2>
<p>First there should be a good Renamer: Methods that simply
return a field value should be renamed to get<i>FieldName</i>.
Fields should be named after their type, maybe also by assignments
(see section about local variable names).</p>
<p>The deobfuscator should detect inner and anonymous variables,
synthetic methods and so on, and rename them accordingly.</p>
<h2>Handling of Class.forName in obfuscator</h2>
<p>The obfuscator should detect Class.forName constructs (and
similarly for methods and fields) and if their parameters are constant
it should change the parameter according to the rename function. </p>
<h2>Merging javadoc comments</h2>
<p>It would be nice if the decompiler could merge the javadoc comments
into the class file. More and more people use javadoc to comment the
public api of their java classes. It shouldn't be too difficult to
copy them back into the java code. </p>
<p>This doesn't need to be built into the decompiler. A script that takes
the javadoc pages and the decompiled code can easily merge them.</p>
<?php require("footer.inc"); ?>

@ -0,0 +1,92 @@
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 3.0//EN">
<html>
<head>
<title>Java Optimize and Decompile Environment (JODE)</title>
<meta name="date" content="2000-06-30">
<meta name="description" content="JODE - Java Optimize and Decompile Environment.">
<meta name="author" content="Jochen Hoenicke">
<meta name="keywords" content="jode, java, decompiler, obfuscator, deobfuscator, reverse engineering, free, GPL">
</head>
<BODY bgcolor=#FFFFFF topmargin="0" bottommargin="0" leftmargin="0" rightmargin="0" marginheight="0" marginwidth="0">
<table cellpadding=4 cellspacing=1 width=100%>
<tr><td>
</td>
<td> <img src="jode-logo.gif" alt="JODE" width=286 height=110></td>
</tr>
<tr>
<td valign="top">
<table cellspacing=0 cellpadding=3 width=100% border=0 bgcolor=eeeef8>
<tr bgcolor="7272cc">
<td align="center"><font color="ffffff"><b>Jode</b></font></td></tr>
<tr><td align="right">
<a href="./"><B>Home</B></a><br>
<a href="http://sourceforge.net/project/?group_id=3790">Project&nbsp;page</a><br>
<br>
<a href="./applet.html">Applet</a><br>
<a href="./download.html">Download</a><br>
<a href="./usage.html">Documentation</a><br>
<a href="./license.html">License</a><br>
<a href="./history.html">History</a><br>
<a href="./links.html">Links</a><br>
<a href="./bluesky.html">Blue&nbsp;Sky</a><tr bgcolor="7272cc">
<td align="center"><font color="ffffff"><b>Feedback</b></font></td></tr>
<tr><td align="right">
<a href="http://sourceforge.net/bugs/?group_id=3790">Bug&nbsp;Tracking</a><br>
<a href="http://sourceforge.net/forum/?group_id=3790">Public&nbsp;Forums</a><br>
<a href="http://lists.sourceforge.net/mailman/listinfo/jode-users">Mailing&nbsp;List</a><br>
<a href="http://sourceforge.net/sendmessage.html?touser=18252">Private&nbsp;Mail</a><tr bgcolor="7272cc">
<td align="center"><font color="ffffff"><b>Download</b></font></td></tr>
<tr><td align="right">
<a href="ftp://jode.sourceforge.net/pub/jode/">FTP&nbsp;server</a><br>
<a href="http://sourceforge.net/project/filelist.html?group_id=3790">Source&nbsp;releases</a></td></tr>
<tr bgcolor="ffffff"><td align="center"><br>Powered by <br>
<a href="http://sourceforge.net"><img src="http://sourceforge.net/sflogo.html?group_id=3790&type=1" border=0 width=88 height=31 alt="SourceForge"></a><br>
<br>Best viewed with <br>
<a href="http://www.anybrowser.org/campaign/"><img src="a-logo.gif" border=0 width=88 height=31 alt="Any Browser"></a><br>
</td></tr></table>
</td>
<td valign="top">
<h2>Download</h2>
The latest source code of <i>JODE</i> is available at the <a href="http://sourceforge.net/project/?group_id=3790">project page</a>.
You need several other packages to build <i>JODE</i>, check the <a href="./links.html">links page</a>. <br><br>
The simplest way to get it, especially for non unix users, is in
precompiled form, though. I have two jar archives at the <a
href="ftp://jode.sourceforge.net/pub/jode">ftp server</a>. You may
need to press shift while clicking on the link, depending on your
browser.
<ul> <li><a href="ftp://jode.sourceforge.net/pub/jode/jode-1.0.93-1.1.jar">jode-1.0.93-1.1.jar</a> is for JDK&nbsp;1.1. It already
contains Getopt and the collection classes from the GNU Classpath
project. If you want to use the swing interface, you have to download
swing separately. </li>
<li> <a href="ftp://jode.sourceforge.net/pub/jode/jode-1.0.93-1.2.jar">jode-1.0.93-1.2.jar</a> is for JDK&nbsp;1.2. It already
contains Getopt, so you don't need any other package.</li> </ul>
<h2>CVS Repository</h2>
You can get the latest sources from the <a href="http://sourceforge.net/cvs/?group_id=3790">CVS repository</a>.
Follow the instruction on that page; use <code>jode</code> as
<i>modulename</i>. Then change to the directory jode and run
<pre>aclocal && automake -a && autoconf</pre>
Afterwards follow the instruction in the INSTALL file.
</td></tr>
</table>
<TABLE width="100%" border="0" cellspacing="0" cellpadding="2" bgcolor="737b9c">
<TR>
<TD align="center"><FONT color="#ffffff"><SPAN class="titlebar">
All trademarks and copyrights on this page are properties of their respective owners. <br>
Last updated on 8-May-2000,
Copyright &copy; 1998-2000 by Jochen Hoenicke.</SPAN></FONT>
</TD>
</TR>
</TABLE>
</BODY>
</HTML>

@ -1,94 +0,0 @@
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 3.0//EN">
<html>
<head>
<title>Java Optimize and Decompile Environment (JODE)</title>
<meta name="robots" content="noindex">
<meta name="date" content="1999-10-24">
</head>
<body>
<table cellpadding=4 cellspacing=1 width=100%>
<tr>
<td></td>
<td> <img src="jode-logo.gif" alt="JODE" width=286 height=110></td>
</tr>
<tr>
<td valign="top">
<B><a href="http://www.informatik.uni-oldenburg.de/~delwi">Homepage</a></B>
<br><br>
<a href="jode.html">
<B>Jode</B></a>
<ul>
<li><a href="applet.html">Test It Online</a></li>
<li>Download</li>
<li><a href="usage.html">Usage</a></li>
<li><a href="license.html">License</a></li>
<li><a href="history.html">History</a></li>
<li><a href="links.html">Links</a></li>
<li><a href="bluesky.html">Blue Sky</a></li>
</ul>
</td>
<td>
<h2>Download</h2>
The simplest way is to get it in precompiled form. I have two jar
archives:
<ul>
<li><a href="jode-@VERSION@-1.1.jar">jode-@VERSION@-1.1.jar</a> is for
JDK&nbsp;1.1. It already contains Getopt and the collection classes
from the GNU Classpath project. If you want to use the swing
interface, you have to download swing separately. </li>
<li><a href="jode-@VERSION@-1.2.jar">jode-@VERSION@-1.2.jar</a> is for
JDK&nbsp;1.2. It already contains Getopt, so you don't need any other
package.</li>
</ul>
<a href="jode-@VERSION@.tar.gz">jode-@VERSION@.tar.gz</a> is the source
code. You need many unix tools to compile this file. It also works
under windows with <a
href="http://sourceware.cygnus.com/cygwin/">cygwin</a> and unzip.</li>
<h2>Other packages you may need</h2>
<dl>
<dt>CYGWIN (unix tools for win95/NT)</dt>
<dd>
<a href="http://sourceware.cygnus.com/cygwin/">http://sourceware.cygnus.com/cygwin/</a>
</dd>
<dt>JDK 1.1:</dt>
<dd>
<a href="http://java.sun.com/products/jdk/1.1/index.htm">http://java.sun.com/products/jdk/1.1/index.htm</a>
</dd>
<dt><a name="swing">Swing for JDK 1.1:</a><dt>
<dd>
<a href="http://java.sun.com/products/jfc/index.html#download-swing">http://java.sun.com/products/jfc/index.html#download-swing</a>
</dd>
<dt>JDK 1.2:</dt>
<dd>
<a href="http://java.sun.com/products/jdk/1.2/index.html">http://java.sun.com/products/jdk/1.2/index.html</a>
</dd>
<dt><a name="getopt">Getopt</a>:</dt>
<dd>
<a href="http://www.urbanophile.com/arenn/hacking/download.html#getopt">http://www.urbanophile.com/arenn/hacking/download.html#getopt</a>
</dd>
<dt><a name="collections">Collection Classes</a>:</dt>
<dd>I have written a small script that puts the collection classes
from the <a href="http://www.classpath.org">GNU Classpath Project</a> into
its own package (<code>org.gnu.java.util.collections</code>). You can
download the <a href="collections.tar.gz">source code</a> (including
the script), or <a href="collections.jar">a precompiled jar file</a>.
</dd>
</dl>
</td>
</table>
<hr>
<p><A HREF="mailto:Jochen.Hoenicke@Informatik.Uni-Oldenburg.DE">
http://www.informatik.uni-oldenburg.de/~delwi/jode/download.html</A>, last
updated on <em>24-Okt-1999</em>.</p>
</body>
</html>

@ -0,0 +1,40 @@
<?php require("header.inc"); ?>
<h2>Download</h2>
The latest source code of <i>JODE</i> is available at the <?php
sflink("project/") ?>project page</a>.
You need several other packages to build <i>JODE</i>, check the <?php
selflink("links") ?>links page</a>. <br><br>
The simplest way to get it, especially for non unix users, is in
precompiled form, though. I have two jar archives at the <a
href="ftp://jode.sourceforge.net/pub/jode">ftp server</a>. You may
need to press shift while clicking on the link, depending on your
browser.
<?php
function jarlink($what) {
global $version;
echo "<a href=\"ftp://jode.sourceforge.net/pub/jode/jode-".$version.$what;
echo ".jar\">jode-".$version.$what.".jar</a>";
} ?>
<ul> <li><?php jarlink("-1.1") ?> is for JDK&nbsp;1.1. It already
contains Getopt and the collection classes from the GNU Classpath
project. If you want to use the swing interface, you have to download
swing separately. </li>
<li> <?php jarlink("-1.2") ?> is for JDK&nbsp;1.2. It already
contains Getopt, so you don't need any other package.</li> </ul>
<h2>CVS Repository</h2>
You can get the latest sources from the <?php sflink("cvs/") ?>
CVS repository</a>.
Follow the instruction on that page; use <code>jode</code> as
<i>modulename</i>. Then change to the directory jode and run
<pre>aclocal && automake -a && autoconf</pre>
Afterwards follow the instruction in the INSTALL file.
<?php require("footer.inc"); ?>

@ -0,0 +1,14 @@
</td></tr>
</table>
<TABLE width="100%" border="0" cellspacing="0" cellpadding="2" bgcolor="737b9c">
<TR>
<TD align="center"><FONT color="#ffffff"><SPAN class="titlebar">
All trademarks and copyrights on this page are properties of their respective owners. <br>
Last updated on 30-Jun-2000,
Copyright &copy; 1998-2000 by Jochen Hoenicke.</SPAN></FONT>
</TD>
</TR>
</TABLE>
</BODY>
</HTML>

@ -0,0 +1,42 @@
<?php
$version="1.0.93";
function selflink($link) {
echo "<a href=\"./";
if ($link != "jode") {
if (ereg("#", $link)) {
$link = ereg_replace("#", ".php#", $link);
} else {
$link .= ".php";
}
echo "$link";
}
echo "\">";
}
function sflink($link) {
echo "<a href=\"http://sourceforge.net/$link?group_id=3790\">";
}
?><!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 3.0//EN">
<html>
<head>
<title>Java Optimize and Decompile Environment (JODE)</title>
<meta name="date" content="2000-06-30">
<meta name="description" content="JODE - Java Optimize and Decompile Environment.">
<meta name="author" content="Jochen Hoenicke">
<meta name="keywords" content="jode, java, decompiler, obfuscator, deobfuscator, reverse engineering, free, GPL">
</head>
<BODY bgcolor=#FFFFFF topmargin="0" bottommargin="0" leftmargin="0" rightmargin="0" marginheight="0" marginwidth="0">
<table cellpadding=4 cellspacing=1 width=100%>
<tr><td>
<?php /* <CENTER><img src="constructionint.gif" alt="Under Construction, "><br>
beware broken links</CENTER> */ ?>
</td>
<td> <img src="jode-logo.gif" alt="JODE" width=286 height=110></td>
</tr>
<tr>
<td valign="top">
<?php require("menu.inc"); ?>
</td>
<td valign="top">

@ -2,60 +2,83 @@
<html> <html>
<head> <head>
<title>Java Optimize and Decompile Environment (JODE)</title> <title>Java Optimize and Decompile Environment (JODE)</title>
<meta name="robots" content="noindex"> <meta name="date" content="2000-06-30">
<meta name="date" content="1999-10-24"> <meta name="description" content="JODE - Java Optimize and Decompile Environment.">
<meta name="author" content="Jochen Hoenicke">
<meta name="keywords" content="jode, java, decompiler, obfuscator, deobfuscator, reverse engineering, free, GPL">
</head> </head>
<body> <BODY bgcolor=#FFFFFF topmargin="0" bottommargin="0" leftmargin="0" rightmargin="0" marginheight="0" marginwidth="0">
<table cellpadding=4 cellspacing=1 width=100%> <table cellpadding=4 cellspacing=1 width=100%>
<tr> <tr><td>
<td></td> </td>
<td> <img src="jode-logo.gif" alt="JODE" width=286 height=110></td> <td> <img src="jode-logo.gif" alt="JODE" width=286 height=110></td>
</tr> </tr>
<tr> <tr>
<td valign="top"> <td valign="top">
<B><a href="http://www.informatik.uni-oldenburg.de/~delwi">Homepage</a></B> <table cellspacing=0 cellpadding=3 width=100% border=0 bgcolor=eeeef8>
<br><br> <tr bgcolor="7272cc">
<a href="jode.html"> <td align="center"><font color="ffffff"><b>Jode</b></font></td></tr>
<B>Jode</B></a> <tr><td align="right">
<ul> <a href="./"><B>Home</B></a><br>
<li><a href="applet.html">Test It Online</a></li> <a href="http://sourceforge.net/project/?group_id=3790">Project&nbsp;page</a><br>
<li><a href="download.html">Download</a></li> <br>
<li><a href="usage.html">Usage</a></li> <a href="./applet.html">Applet</a><br>
<li><a href="license.html">License</a></li> <a href="./download.html">Download</a><br>
<li>History</li> <a href="./usage.html">Documentation</a><br>
<li><a href="links.html">Links</a></li> <a href="./license.html">License</a><br>
<li><a href="bluesky.html">Blue Sky</a></li> <a href="./history.html">History</a><br>
</ul> <a href="./links.html">Links</a><br>
<a href="./bluesky.html">Blue&nbsp;Sky</a><tr bgcolor="7272cc">
<td align="center"><font color="ffffff"><b>Feedback</b></font></td></tr>
<tr><td align="right">
<a href="http://sourceforge.net/bugs/?group_id=3790">Bug&nbsp;Tracking</a><br>
<a href="http://sourceforge.net/forum/?group_id=3790">Public&nbsp;Forums</a><br>
<a href="http://lists.sourceforge.net/mailman/listinfo/jode-users">Mailing&nbsp;List</a><br>
<a href="http://sourceforge.net/sendmessage.html?touser=18252">Private&nbsp;Mail</a><tr bgcolor="7272cc">
<td align="center"><font color="ffffff"><b>Download</b></font></td></tr>
<tr><td align="right">
<a href="ftp://jode.sourceforge.net/pub/jode/">FTP&nbsp;server</a><br>
<a href="http://sourceforge.net/project/filelist.html?group_id=3790">Source&nbsp;releases</a></td></tr>
<tr bgcolor="ffffff"><td align="center"><br>Powered by <br>
<a href="http://sourceforge.net"><img src="http://sourceforge.net/sflogo.html?group_id=3790&type=1" border=0 width=88 height=31 alt="SourceForge"></a><br>
<br>Best viewed with <br>
<a href="http://www.anybrowser.org/campaign/"><img src="a-logo.gif" border=0 width=88 height=31 alt="Any Browser"></a><br>
</td></tr></table>
</td> </td>
<td> <td valign="top">
<h2>Why did I wrote it?</h2> <h2>History</h2>
<p>Someday I found <code>guavad</code>, a disassembler for java byte <p>Someday I found <code>guavad</code>, a disassembler for java byte
code (it does similar things like <code>javap&nbsp;-c</code>). I used code (it does similar things like <code>javap&nbsp;-c</code>). I used
it on a class file, and found that it was possible to reconstruct the it on a class file, and found that it was possible to reconstruct the
original java code. First I did it by hand on some small routines, original java code. First I did it by hand on some small routines,
but I soon realized that it was a rather stupid task, and that I could but I soon realized that it was a rather stupid task. So I wrote a
write a <a href="dasm_to_java.perl"><code>perl</code> script</a> small <a href="dasm_to_java.perl"><code>perl</code> script</a> that
that does the same. At the end of the next day I had a working did this process automatically. At the end of the next day I had my
decompiler.</p> first working decompiler.</p>
<p>Now while it was working, it was not easy to use. You had to <p>Now while the <code>perl</code> script is working, it is not easy
decompile the code first with a disassembler, cut the method, you to use. You have to decompile the code first with a disassembler, cut
wanted to decompile and then run the perl script on it. So I decided out the code of a single method, and run the perl script on it. I
to get some information of the class files and do this all decided to get the bytecode directly out of the class files and do
automatically. I decided to write it in <code>java</code> now, this all automatically. I decided to write it in <code>java</code>
because it suited best.</p> now, because it suited best.</p>
<p>Just for the records: the java code is now more than 50 times <p>Just for the records: the java code is now more than 50 times
bigger than the original perl script and is still growing.</p> bigger than the original perl script and is still growing.</p>
</td> </td></tr>
</table> </table>
<hr> <TABLE width="100%" border="0" cellspacing="0" cellpadding="2" bgcolor="737b9c">
<TR>
<TD align="center"><FONT color="#ffffff"><SPAN class="titlebar">
All trademarks and copyrights on this page are properties of their respective owners. <br>
Last updated on 8-May-2000,
Copyright &copy; 1998-2000 by Jochen Hoenicke.</SPAN></FONT>
</TD>
</TR>
</TABLE>
<p><A HREF="mailto:Jochen.Hoenicke@Informatik.Uni-Oldenburg.DE"> </BODY>
http://www.informatik.uni-oldenburg.de/~delwi/jode/history.html</A>, last </HTML>
updated on <em>24-Okt-1999</em>.</p>
</body>
</html>

@ -0,0 +1,23 @@
<?php require("header.inc"); ?>
<h2>History</h2>
<p>Someday I found <code>guavad</code>, a disassembler for java byte
code (it does similar things like <code>javap&nbsp;-c</code>). I used
it on a class file, and found that it was possible to reconstruct the
original java code. First I did it by hand on some small routines,
but I soon realized that it was a rather stupid task. So I wrote a
small <a href="dasm_to_java.perl"><code>perl</code> script</a> that
did this process automatically. At the end of the next day I had my
first working decompiler.</p>
<p>Now while the <code>perl</code> script is working, it is not easy
to use. You have to decompile the code first with a disassembler, cut
out the code of a single method, and run the perl script on it. I
decided to get the bytecode directly out of the class files and do
this all automatically. I decided to write it in <code>java</code>
now, because it suited best.</p>
<p>Just for the records: the java code is now more than 50 times
bigger than the original perl script and is still growing.</p>
<?php require("footer.inc"); ?>

@ -0,0 +1,131 @@
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 3.0//EN">
<html>
<head>
<title>Java Optimize and Decompile Environment (JODE)</title>
<meta name="date" content="2000-06-30">
<meta name="description" content="JODE - Java Optimize and Decompile Environment.">
<meta name="author" content="Jochen Hoenicke">
<meta name="keywords" content="jode, java, decompiler, obfuscator, deobfuscator, reverse engineering, free, GPL">
</head>
<BODY bgcolor=#FFFFFF topmargin="0" bottommargin="0" leftmargin="0" rightmargin="0" marginheight="0" marginwidth="0">
<table cellpadding=4 cellspacing=1 width=100%>
<tr><td>
</td>
<td> <img src="jode-logo.gif" alt="JODE" width=286 height=110></td>
</tr>
<tr>
<td valign="top">
<table cellspacing=0 cellpadding=3 width=100% border=0 bgcolor=eeeef8>
<tr bgcolor="7272cc">
<td align="center"><font color="ffffff"><b>Jode</b></font></td></tr>
<tr><td align="right">
<a href="./"><B>Home</B></a><br>
<a href="http://sourceforge.net/project/?group_id=3790">Project&nbsp;page</a><br>
<br>
<a href="./applet.html">Applet</a><br>
<a href="./download.html">Download</a><br>
<a href="./usage.html">Documentation</a><br>
<a href="./license.html">License</a><br>
<a href="./history.html">History</a><br>
<a href="./links.html">Links</a><br>
<a href="./bluesky.html">Blue&nbsp;Sky</a><tr bgcolor="7272cc">
<td align="center"><font color="ffffff"><b>Feedback</b></font></td></tr>
<tr><td align="right">
<a href="http://sourceforge.net/bugs/?group_id=3790">Bug&nbsp;Tracking</a><br>
<a href="http://sourceforge.net/forum/?group_id=3790">Public&nbsp;Forums</a><br>
<a href="http://lists.sourceforge.net/mailman/listinfo/jode-users">Mailing&nbsp;List</a><br>
<a href="http://sourceforge.net/sendmessage.html?touser=18252">Private&nbsp;Mail</a><tr bgcolor="7272cc">
<td align="center"><font color="ffffff"><b>Download</b></font></td></tr>
<tr><td align="right">
<a href="ftp://jode.sourceforge.net/pub/jode/">FTP&nbsp;server</a><br>
<a href="http://sourceforge.net/project/filelist.html?group_id=3790">Source&nbsp;releases</a></td></tr>
<tr bgcolor="ffffff"><td align="center"><br>Powered by <br>
<a href="http://sourceforge.net"><img src="http://sourceforge.net/sflogo.html?group_id=3790&type=1" border=0 width=88 height=31 alt="SourceForge"></a><br>
<br>Best viewed with <br>
<a href="http://www.anybrowser.org/campaign/"><img src="a-logo.gif" border=0 width=88 height=31 alt="Any Browser"></a><br>
</td></tr></table>
</td>
<td valign="top">
<P><i>JODE</i> is a java package containing a decompiler and an
optimizer for java. This package is freely available under the GPL
(see <a href="./license.html">license</a>).<p>
<P>The decompiler takes <tt>class</tt> files as input and produces
something similar to the original <tt>java</tt> file. Of course this
can't be perfect: There is no way to produce the comments or the names
of local variables (except when compiled with debuging) and there are
often more ways to write the same thing. But <i>JODE</i> does its job
quite well, so you should give it a try: <a href="./applet.html">start
the applet</a>.</P>
<P>The optimizer transforms <tt>class</tt> files in various ways with
can be controlled by a script file. It supports the following
operations:</p>
<ul>
<li>Renaming class, method, field and local names to shorter,
obfuscated, or unique names or according to a given translation
table</li>
<li>Removing debugging information</li>
<li>Removing dead code (classes, fields, methods) and constant
fields</li>
<li>Optimizing local variable allocation</li>
</ul>
<h2>News</h2>
<ul>
<li><i>JODE</i> is now hosted by <a href="http://sourceforge.net/">SourceForge</a>.</li>
<li>The latest <a href="http://sourceforge.net/cvs/?group_id=3790">CVS</a> version breaks long lines</li>
<li>I can now decompile <b>inner and anonymous</b> classes.</li>
<li>The optimizer (aka obfuscator) can be customized via a small
config file</li>
<li>Jode is <tt>autoconf</tt>igured.</li>
</ul>
<h2>Limitations</h2>
<p>If not all dependent classes can be found, the verifier (which is
run before decompilation starts) may exit with a type error. You
can decompile it with <tt>--verify=off</tt>, but take the warning
serious, that types may be incorrect. There's sometimes no way to
guess the right type, if you don't have access the full class
hierarchie.<br>
This is not a bug in the verifier: java will complain the same way,
if it is run with bytecode verification turned on. And if you don't
have the dependent classes, you can't compile the code again.</p>
<p>There may be situations, where the code doesn't understand complex
expressions. In this case many ugly temporary variables are used, but
the code should still be compileable. This does especially happen
when you compile with <tt>`-O'</tt> flag and javac has inlined some
methods. </p>
<p>Sometimes this program may exit with an <code>Exception</code> or
produce incorrect code. Most time the code can't be compiled, so that
it can be easily spotted. If you have one of these problems (except
those that occur on some of the <code>jode.test</code> files, I would
be very interested in a bug report (including the <code>class</code>
file, if possible). </p>
<p>Sometimes <i>JODE</i> generates some GOTO expression and labels.
This shouldn't happen any more with code produced by javac or jikes.
But some flow obfuscator may provoke this. In that case you can run
the Obfuscator first (to optimize away the flow obfuscation ;-).</p>
</td></tr>
</table>
<TABLE width="100%" border="0" cellspacing="0" cellpadding="2" bgcolor="737b9c">
<TR>
<TD align="center"><FONT color="#ffffff"><SPAN class="titlebar">
All trademarks and copyrights on this page are properties of their respective owners. <br>
Last updated on 8-May-2000,
Copyright &copy; 1998-2000 by Jochen Hoenicke.</SPAN></FONT>
</TD>
</TR>
</TABLE>
</BODY>
</HTML>

@ -0,0 +1,69 @@
<?php require("header.inc"); ?>
<P><i>JODE</i> is a java package containing a decompiler and an
optimizer for java. This package is freely available under the GPL
(see <?php selflink("license") ?>license</a>).<p>
<P>The decompiler takes <tt>class</tt> files as input and produces
something similar to the original <tt>java</tt> file. Of course this
can't be perfect: There is no way to produce the comments or the names
of local variables (except when compiled with debuging) and there are
often more ways to write the same thing. But <i>JODE</i> does its job
quite well, so you should give it a try: <? selflink("applet") ?>start
the applet</a>.</P>
<P>The optimizer transforms <tt>class</tt> files in various ways with
can be controlled by a script file. It supports the following
operations:</p>
<ul>
<li>Renaming class, method, field and local names to shorter,
obfuscated, or unique names or according to a given translation
table</li>
<li>Removing debugging information</li>
<li>Removing dead code (classes, fields, methods) and constant
fields</li>
<li>Optimizing local variable allocation</li>
</ul>
<h2>News</h2>
<ul>
<li><i>JODE</i> is now hosted by <a href="http://sourceforge.net/">SourceForge</a>.</li>
<li>The latest <?php sflink("cvs/") ?>CVS</a> version breaks long lines</li>
<li>I can now decompile <b>inner and anonymous</b> classes.</li>
<li>The optimizer (aka obfuscator) can be customized via a small
config file</li>
<li>Jode is <tt>autoconf</tt>igured.</li>
</ul>
<h2>Limitations</h2>
<p>If not all dependent classes can be found, the verifier (which is
run before decompilation starts) may exit with a type error. You
can decompile it with <tt>--verify=off</tt>, but take the warning
serious, that types may be incorrect. There's sometimes no way to
guess the right type, if you don't have access the full class
hierarchie.<br>
This is not a bug in the verifier: java will complain the same way,
if it is run with bytecode verification turned on. And if you don't
have the dependent classes, you can't compile the code again.</p>
<p>There may be situations, where the code doesn't understand complex
expressions. In this case many ugly temporary variables are used, but
the code should still be compileable. This does especially happen
when you compile with <tt>`-O'</tt> flag and javac has inlined some
methods. </p>
<p>Sometimes this program may exit with an <code>Exception</code> or
produce incorrect code. Most time the code can't be compiled, so that
it can be easily spotted. If you have one of these problems (except
those that occur on some of the <code>jode.test</code> files, I would
be very interested in a bug report (including the <code>class</code>
file, if possible). </p>
<p>Sometimes <i>JODE</i> generates some GOTO expression and labels.
This shouldn't happen any more with code produced by javac or jikes.
But some flow obfuscator may provoke this. In that case you can run
the Obfuscator first (to optimize away the flow obfuscation ;-).</p>
<?php require("footer.inc"); ?>

@ -1,137 +0,0 @@
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 3.0//EN">
<html>
<head>
<title>Java Optimize and Decompile Environment (JODE)</title>
<meta name="description" content="The home page of jode, my Java decompiler.">
<meta name="author" content="Jochen Hoenicke">
<meta name="keywords" content="jode, java, decompile, decompiler,
java-decompiler, reverse engineering, free, GPL">
<meta name="robots" content="index">
<meta name="robots" content="nofollow">
<meta name="date" content="2000-01-24">
</head>
<body>
<table cellpadding=4 cellspacing=1 width=100%>
<tr>
<td></td>
<td> <img src="jode-logo.gif" alt="JODE" width=286 height=110></td>
</tr>
<tr>
<td valign="top">
<B><a href="http://www.informatik.uni-oldenburg.de/~delwi">Homepage</a></B>
<br><br>
<a
href="http://www.informatik.uni-oldenburg.de/~delwi/jode/jode.html">
<B>Jode (WWW)</B></a>
<ul>
<li><a href="applet.html">Test It Online</a></li>
<li><a href="download.html">Download</a></li>
<li><a href="usage.html">Usage</a></li>
<li><a href="license.html">License</a></li>
<li><a href="history.html">History</a></li>
<li><a href="links.html">Links</a></li>
<li><a href="bluesky.html">Blue Sky</a></li>
</ul>
</td>
<td>
<P><i>JODE</i> is a java package containing a decompiler and an
optimizer (aka obfuscator ;-) for java. This package was totally
written in my spare time and is available for free (see <a
href="license.html">license</a>).<p>
<P>The decompiler takes <tt>class</tt> files as input and produces
something similar to the original <tt>java</tt> file. Of course this
can't be perfect: There is no way to produce the comments or the names
of local variables (except when compiled with debuging) and there are
often more ways to write the same thing. But <i>JODE</i> does its job
quite well, so you should give it a try: <a href="applet.html">start
the applet</a>.</P>
<P>The optimizer transforms <tt>class</tt> files in various ways with
can be controlled by a script file. It supports the following
operations:</p>
<ul>
<li>Renaming class, method, field and local names to shorter or unique
names or according to a given translation table</li>
<li>Removing debugging information</li>
<li>Removing dead code (classes, fields, methods) and constant
fields</li>
<li>Optimizing local variable allocation</li>
</ul>
<h2>News</h2>
<ul>
<li>I can now decompile <b>inner and anonymous</b> classes.</li>
<li>The optimizer (aka obfuscator) can now be customized via a small
config file</li>
<li>Jode is now <tt>autoconf</tt>igured.</li>
<li>I use the <a href="http://www.urbanophile.com/arenn/hacking/download.html#getopt">getopt</a> package</li>
</ul>
<h3>Older News</h3>
<ul>
<li>There is a <a href="usage.html#swing">swing</a> interface</li>
<li>Jode handles zip and jar archives as both input and output.</li>
</ul>
<h2>Known Bugs</h2>
<p>Small bugs, that should be fixed in the next release:</p>
<ul>
<li>If there is more than one assignment to a final local variable
(they can be conditionally, so that only one is actually excuted),
jode refuses to mark it as final. This can make decompilation of
method scoped classes wrong. </li>
<li>There's probably a bug in LocalOptimizer (part of the obfuscator).
It is triggered very seldom, and may produces incorrect code. If your
application doesn't work after obfuscation, or is refused by the
bytecode verifier, try again without the LocalOptimizer. If this was
the reason send me your class file ;-)
</li>
</ul>
<p>Now follows a list of oddities, that will probably never get
completely fixed.</p>
<p>If not all dependent classes can be found, the verifier (which is
run before decompilation starts) may exit with a type error. You
can decompile it with <tt>--verify=off</tt>, but take the warning
serious, that the types may be incorrect. There's sometimes no way
to guess the right type, if you don't have access the full class
hierarchie.<br>
This is not a bug in the verifier: java will complain the same way,
if it is run with bytecode verification turned on. And if you don't
have the dependent classes, you can't compile the code again.</p>
<p>There may be situations, where the code doesn't understand complex
expressions. In this case many ugly temporary variables are used, but
the code should still be compileable. This does especially happen
when you compile with <tt>`-O'</tt> flag and javac has inlined some
methods. </p>
<p>Sometimes this program may exit with an <code>Exception</code> or
produce incorrect code. Most time the code can't be compiled, so that
it can be easily spotted. If you have one of these problems (except
those that occur on some of the <code>jode.test</code> files, I would
be very interested in a bug report (including the <code>class</code>
file, if possible).</p>
<p>Sometimes <i>JODE</i> generates some GOTO expression and labels.
This shouldn't happen any more with code produced by javac or jikes.
But some flow obfuscator may provoke this. In that case you can run
the Obfuscator first (to optimize away the flow obfuscation ;-).</p>
</td>
</table>
<hr>
<p><A HREF="mailto:Jochen.Hoenicke@Informatik.Uni-Oldenburg.DE">
http://www.informatik.uni-oldenburg.de/~delwi/jode/jode.html</A>, last
updated on <em>24-Jan-2000</em>.</p>
</body>
</html>

@ -1,532 +1,76 @@
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 3.0//EN"> <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 3.0//EN">
<html> <html>
<head> <head>
<TITLE>GNU General Public License - GNU Project - Free Software Foundation (FSF)</TITLE> <title>Java Optimize and Decompile Environment (JODE)</title>
<meta name="robots" content="noindex"> <meta name="date" content="2000-06-30">
<meta name="date" content="1999-10-24"> <meta name="description" content="JODE - Java Optimize and Decompile Environment.">
<meta name="author" content="Jochen Hoenicke">
<meta name="keywords" content="jode, java, decompiler, obfuscator, deobfuscator, reverse engineering, free, GPL">
</head> </head>
<body> <BODY bgcolor=#FFFFFF topmargin="0" bottommargin="0" leftmargin="0" rightmargin="0" marginheight="0" marginwidth="0">
<table cellpadding=4 cellspacing=1 width=100%> <table cellpadding=4 cellspacing=1 width=100%>
<tr> <tr><td>
<td></td> </td>
<td> <img src="jode-logo.gif" alt="JODE" width=286 height=110></td> <td> <img src="jode-logo.gif" alt="JODE" width=286 height=110></td>
</tr> </tr>
<tr> <tr>
<td valign="top"> <td valign="top">
<B><a href="http://www.informatik.uni-oldenburg.de/~delwi">Homepage</a></B> <table cellspacing=0 cellpadding=3 width=100% border=0 bgcolor=eeeef8>
<br><br> <tr bgcolor="7272cc">
<a href="jode.html"> <td align="center"><font color="ffffff"><b>Jode</b></font></td></tr>
<B>Jode</B></a> <tr><td align="right">
<ul> <a href="./"><B>Home</B></a><br>
<li><a href="applet.html">Test It Online</a></li> <a href="http://sourceforge.net/project/?group_id=3790">Project&nbsp;page</a><br>
<li><a href="download.html">Download</a></li> <br>
<li><a href="usage.html">Usage</a></li> <a href="./applet.html">Applet</a><br>
<li>License</li> <a href="./download.html">Download</a><br>
<li><a href="history.html">History</a></li> <a href="./usage.html">Documentation</a><br>
<li><a href="links.html">Links</a></li> <a href="./license.html">License</a><br>
<li><a href="bluesky.html">Blue Sky</a></li> <a href="./history.html">History</a><br>
</ul> <a href="./links.html">Links</a><br>
<a href="./bluesky.html">Blue&nbsp;Sky</a><tr bgcolor="7272cc">
<td align="center"><font color="ffffff"><b>Feedback</b></font></td></tr>
<tr><td align="right">
<a href="http://sourceforge.net/bugs/?group_id=3790">Bug&nbsp;Tracking</a><br>
<a href="http://sourceforge.net/forum/?group_id=3790">Public&nbsp;Forums</a><br>
<a href="http://lists.sourceforge.net/mailman/listinfo/jode-users">Mailing&nbsp;List</a><br>
<a href="http://sourceforge.net/sendmessage.html?touser=18252">Private&nbsp;Mail</a><tr bgcolor="7272cc">
<td align="center"><font color="ffffff"><b>Download</b></font></td></tr>
<tr><td align="right">
<a href="ftp://jode.sourceforge.net/pub/jode/">FTP&nbsp;server</a><br>
<a href="http://sourceforge.net/project/filelist.html?group_id=3790">Source&nbsp;releases</a></td></tr>
<tr bgcolor="ffffff"><td align="center"><br>Powered by <br>
<a href="http://sourceforge.net"><img src="http://sourceforge.net/sflogo.html?group_id=3790&type=1" border=0 width=88 height=31 alt="SourceForge"></a><br>
<br>Best viewed with <br>
<a href="http://www.anybrowser.org/campaign/"><img src="a-logo.gif" border=0 width=88 height=31 alt="Any Browser"></a><br>
</td></tr></table>
</td> </td>
<td> <td valign="top">
<h2>License</h2> <p><i>JODE</i> is Copyright &copy; 1998-2000 by Jochen Hoenicke. <br><br>
<p><i>JODE</i> is Copyright 1998,1999 by Jochen Hoenicke. It is
released under GNU GPL. That basically means, that you can copy or
modify this code, as long as you put all your modification under the
GPL again. Here is the complete license:</p>
<H2>Table of Contents</H2>
<UL>
<LI><A NAME="TOC1" HREF="#SEC1">GNU GENERAL PUBLIC LICENSE</A>
<UL>
<LI><A NAME="TOC2" HREF="#SEC2">Preamble</A>
<LI><A NAME="TOC3" HREF="#SEC3">TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION</A>
<LI><A NAME="TOC4" HREF="#SEC4">How to Apply These Terms to Your New Programs</A>
</UL>
</UL>
<P>
<HR>
<P>
<H2><A NAME="SEC1" HREF="#TOC1">GNU GENERAL PUBLIC LICENSE</A></H2>
<P>
Version 2, June 1991
</P>
<PRE>
Copyright (C) 1989, 1991 Free Software Foundation, Inc.
59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
</PRE>
<H2><A NAME="SEC2" HREF="#TOC2">Preamble</A></H2>
<P>
The licenses for most software are designed to take away your
freedom to share and change it. By contrast, the GNU General Public
License is intended to guarantee your freedom to share and change free
software--to make sure the software is free for all its users. This
General Public License applies to most of the Free Software
Foundation's software and to any other program whose authors commit to
using it. (Some other Free Software Foundation software is covered by
the GNU Library General Public License instead.) You can apply it to
your programs, too.
</P>
<P>
When we speak of free software, we are referring to freedom, not
price. Our General Public Licenses are designed to make sure that you
have the freedom to distribute copies of free software (and charge for
this service if you wish), that you receive source code or can get it
if you want it, that you can change the software or use pieces of it
in new free programs; and that you know you can do these things.
</P>
<P>
To protect your rights, we need to make restrictions that forbid
anyone to deny you these rights or to ask you to surrender the rights.
These restrictions translate to certain responsibilities for you if you
distribute copies of the software, or if you modify it.
</P>
<P>
For example, if you distribute copies of such a program, whether
gratis or for a fee, you must give the recipients all the rights that
you have. You must make sure that they, too, receive or can get the
source code. And you must show them these terms so they know their
rights.
</P>
<P>
We protect your rights with two steps: (1) copyright the software, and
(2) offer you this license which gives you legal permission to copy,
distribute and/or modify the software.
</P>
<P>
Also, for each author's protection and ours, we want to make certain
that everyone understands that there is no warranty for this free
software. If the software is modified by someone else and passed on, we
want its recipients to know that what they have is not the original, so
that any problems introduced by others will not reflect on the original
authors' reputations.
</P>
<P>
Finally, any free program is threatened constantly by software
patents. We wish to avoid the danger that redistributors of a free
program will individually obtain patent licenses, in effect making the
program proprietary. To prevent this, we have made it clear that any
patent must be licensed for everyone's free use or not licensed at all.
</P>
<P>
The precise terms and conditions for copying, distribution and
modification follow.
</P>
<H2><A NAME="SEC3" HREF="#TOC3">TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION</A></H2>
<P>
<STRONG>0.</STRONG>
This License applies to any program or other work which contains
a notice placed by the copyright holder saying it may be distributed
under the terms of this General Public License. The "Program", below,
refers to any such program or work, and a "work based on the Program"
means either the Program or any derivative work under copyright law:
that is to say, a work containing the Program or a portion of it,
either verbatim or with modifications and/or translated into another
language. (Hereinafter, translation is included without limitation in
the term "modification".) Each licensee is addressed as "you".
<P>
Activities other than copying, distribution and modification are not
covered by this License; they are outside its scope. The act of
running the Program is not restricted, and the output from the Program
is covered only if its contents constitute a work based on the
Program (independent of having been made by running the Program).
Whether that is true depends on what the Program does.
<P>
<STRONG>1.</STRONG>
You may copy and distribute verbatim copies of the Program's
source code as you receive it, in any medium, provided that you
conspicuously and appropriately publish on each copy an appropriate
copyright notice and disclaimer of warranty; keep intact all the
notices that refer to this License and to the absence of any warranty;
and give any other recipients of the Program a copy of this License
along with the Program.
<P>
You may charge a fee for the physical act of transferring a copy, and
you may at your option offer warranty protection in exchange for a fee.
<P>
<STRONG>2.</STRONG>
You may modify your copy or copies of the Program or any portion
of it, thus forming a work based on the Program, and copy and
distribute such modifications or work under the terms of Section 1
above, provided that you also meet all of these conditions:
<P>
<UL>
<LI><STRONG>a)</STRONG>
You must cause the modified files to carry prominent notices
stating that you changed the files and the date of any change.
<P>
<LI><STRONG>b)</STRONG>
You must cause any work that you distribute or publish, that in
whole or in part contains or is derived from the Program or any
part thereof, to be licensed as a whole at no charge to all third
parties under the terms of this License.
<P>
<LI><STRONG>c)</STRONG>
If the modified program normally reads commands interactively
when run, you must cause it, when started running for such
interactive use in the most ordinary way, to print or display an
announcement including an appropriate copyright notice and a
notice that there is no warranty (or else, saying that you provide
a warranty) and that users may redistribute the program under
these conditions, and telling the user how to view a copy of this
License. (Exception: if the Program itself is interactive but
does not normally print such an announcement, your work based on
the Program is not required to print an announcement.)
</UL>
These requirements apply to the modified work as a whole. If
identifiable sections of that work are not derived from the Program,
and can be reasonably considered independent and separate works in
themselves, then this License, and its terms, do not apply to those
sections when you distribute them as separate works. But when you
distribute the same sections as part of a whole which is a work based
on the Program, the distribution of the whole must be on the terms of
this License, whose permissions for other licensees extend to the
entire whole, and thus to each and every part regardless of who wrote it.
<P>
Thus, it is not the intent of this section to claim rights or contest
your rights to work written entirely by you; rather, the intent is to
exercise the right to control the distribution of derivative or
collective works based on the Program.
<P>
In addition, mere aggregation of another work not based on the Program
with the Program (or with a work based on the Program) on a volume of
a storage or distribution medium does not bring the other work under
the scope of this License.
<P>
<STRONG>3.</STRONG>
You may copy and distribute the Program (or a work based on it,
under Section 2) in object code or executable form under the terms of
Sections 1 and 2 above provided that you also do one of the following:
<!-- we use this doubled UL to get the sub-sections indented, -->
<!-- while making the bullets as unobvious as possible. -->
<UL>
<LI><STRONG>a)</STRONG>
Accompany it with the complete corresponding machine-readable
source code, which must be distributed under the terms of Sections
1 and 2 above on a medium customarily used for software interchange; or,
<P>
<LI><STRONG>b)</STRONG>
Accompany it with a written offer, valid for at least three
years, to give any third party, for a charge no more than your
cost of physically performing source distribution, a complete
machine-readable copy of the corresponding source code, to be
distributed under the terms of Sections 1 and 2 above on a medium
customarily used for software interchange; or,
<P>
<LI><STRONG>c)</STRONG>
Accompany it with the information you received as to the offer
to distribute corresponding source code. (This alternative is
allowed only for noncommercial distribution and only if you
received the program in object code or executable form with such
an offer, in accord with Subsection b above.)
</UL>
The source code for a work means the preferred form of the work for
making modifications to it. For an executable work, complete source
code means all the source code for all modules it contains, plus any
associated interface definition files, plus the scripts used to
control compilation and installation of the executable. However, as a
special exception, the source code distributed need not include
anything that is normally distributed (in either source or binary
form) with the major components (compiler, kernel, and so on) of the
operating system on which the executable runs, unless that component
itself accompanies the executable.
<P>
If distribution of executable or object code is made by offering
access to copy from a designated place, then offering equivalent
access to copy the source code from the same place counts as
distribution of the source code, even though third parties are not
compelled to copy the source along with the object code.
<P>
<STRONG>4.</STRONG>
You may not copy, modify, sublicense, or distribute the Program
except as expressly provided under this License. Any attempt
otherwise to copy, modify, sublicense or distribute the Program is
void, and will automatically terminate your rights under this License.
However, parties who have received copies, or rights, from you under
this License will not have their licenses terminated so long as such
parties remain in full compliance.
<P>
<STRONG>5.</STRONG>
You are not required to accept this License, since you have not
signed it. However, nothing else grants you permission to modify or
distribute the Program or its derivative works. These actions are
prohibited by law if you do not accept this License. Therefore, by
modifying or distributing the Program (or any work based on the
Program), you indicate your acceptance of this License to do so, and
all its terms and conditions for copying, distributing or modifying
the Program or works based on it.
<P>
<STRONG>6.</STRONG>
Each time you redistribute the Program (or any work based on the
Program), the recipient automatically receives a license from the
original licensor to copy, distribute or modify the Program subject to
these terms and conditions. You may not impose any further
restrictions on the recipients' exercise of the rights granted herein.
You are not responsible for enforcing compliance by third parties to
this License.
<P>
<STRONG>7.</STRONG>
If, as a consequence of a court judgment or allegation of patent
infringement or for any other reason (not limited to patent issues),
conditions are imposed on you (whether by court order, agreement or
otherwise) that contradict the conditions of this License, they do not
excuse you from the conditions of this License. If you cannot
distribute so as to satisfy simultaneously your obligations under this
License and any other pertinent obligations, then as a consequence you
may not distribute the Program at all. For example, if a patent
license would not permit royalty-free redistribution of the Program by
all those who receive copies directly or indirectly through you, then
the only way you could satisfy both it and this License would be to
refrain entirely from distribution of the Program.
<P>
If any portion of this section is held invalid or unenforceable under
any particular circumstance, the balance of the section is intended to
apply and the section as a whole is intended to apply in other
circumstances.
<P>
It is not the purpose of this section to induce you to infringe any
patents or other property right claims or to contest validity of any
such claims; this section has the sole purpose of protecting the
integrity of the free software distribution system, which is
implemented by public license practices. Many people have made
generous contributions to the wide range of software distributed
through that system in reliance on consistent application of that
system; it is up to the author/donor to decide if he or she is willing
to distribute software through any other system and a licensee cannot
impose that choice.
<P>
This section is intended to make thoroughly clear what is believed to
be a consequence of the rest of this License.
<P>
<STRONG>8.</STRONG>
If the distribution and/or use of the Program is restricted in
certain countries either by patents or by copyrighted interfaces, the
original copyright holder who places the Program under this License
may add an explicit geographical distribution limitation excluding
those countries, so that distribution is permitted only in or among
countries not thus excluded. In such case, this License incorporates
the limitation as if written in the body of this License.
<P>
<STRONG>9.</STRONG>
The Free Software Foundation may publish revised and/or new versions
of the General Public License from time to time. Such new versions will
be similar in spirit to the present version, but may differ in detail to
address new problems or concerns.
<P>
Each version is given a distinguishing version number. If the Program
specifies a version number of this License which applies to it and "any
later version", you have the option of following the terms and conditions
either of that version or of any later version published by the Free
Software Foundation. If the Program does not specify a version number of
this License, you may choose any version ever published by the Free Software
Foundation.
<P>
<STRONG>10.</STRONG>
If you wish to incorporate parts of the Program into other free
programs whose distribution conditions are different, write to the author
to ask for permission. For software which is copyrighted by the Free
Software Foundation, write to the Free Software Foundation; we sometimes
make exceptions for this. Our decision will be guided by the two goals
of preserving the free status of all derivatives of our free software and
of promoting the sharing and reuse of software generally.
<P><STRONG>NO WARRANTY</STRONG></P>
<P>
<STRONG>11.</STRONG>
BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
REPAIR OR CORRECTION.
<P>
<STRONG>12.</STRONG>
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.
<P>
<H2>END OF TERMS AND CONDITIONS</H2>
<H2><A NAME="SEC4" HREF="#TOC4">How to Apply These Terms to Your New Programs</A></H2>
<P>
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
</P>
<P>
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
convey the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
</P>
<PRE>
<VAR>one line to give the program's name and an idea of what it does.</VAR>
Copyright (C) <VAR>yyyy</VAR> <VAR>name of author</VAR>
This program is free software; you can redistribute it and/or This program is free software; you can redistribute it and/or modify
modify it under the terms of the GNU General Public License it under the terms of the <a
as published by the Free Software Foundation; either version 2 href="http://www.gnu.org/copyleft/gpl.html">GNU General Public
of the License, or (at your option) any later version. License</a> as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.<br><br>
This program is distributed in the hope that it will be useful, This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of but <b>without any warranty</b>; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the <b>merchantability</b> or <b>fitness for a particular purpose</b>. See the
GNU General Public License for more details. GNU General Public License for more details.
You should have received a copy of the GNU General Public License </td></tr>
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
</PRE>
<P>
Also add information on how to contact you by electronic and paper mail.
</P>
<P>
If the program is interactive, make it output a short notice like this
when it starts in an interactive mode:
</P>
<PRE>
Gnomovision version 69, Copyright (C) <VAR>yyyy</VAR> <VAR>name of author</VAR>
Gnomovision comes with ABSOLUTELY NO WARRANTY; for details
type `show w'. This is free software, and you are welcome
to redistribute it under certain conditions; type `show c'
for details.
</PRE>
<P>
The hypothetical commands <SAMP>`show w'</SAMP> and <SAMP>`show c'</SAMP> should show
the appropriate parts of the General Public License. Of course, the
commands you use may be called something other than <SAMP>`show w'</SAMP> and
<SAMP>`show c'</SAMP>; they could even be mouse-clicks or menu items--whatever
suits your program.
</P>
<P>
You should also get your employer (if you work as a programmer) or your
school, if any, to sign a "copyright disclaimer" for the program, if
necessary. Here is a sample; alter the names:
</P>
<PRE>
Yoyodyne, Inc., hereby disclaims all copyright
interest in the program `Gnomovision'
(which makes passes at compilers) written
by James Hacker.
<VAR>signature of Ty Coon</VAR>, 1 April 1989
Ty Coon, President of Vice
</PRE>
<P>
This General Public License does not permit incorporating your program into
proprietary programs. If your program is a subroutine library, you may
consider it more useful to permit linking proprietary applications with the
library. If this is what you want to do, use the GNU Library General
Public License instead of this License.
</td>
</table> </table>
<hr> <TABLE width="100%" border="0" cellspacing="0" cellpadding="2" bgcolor="737b9c">
<TR>
<p><A HREF="mailto:Jochen.Hoenicke@Informatik.Uni-Oldenburg.DE"> <TD align="center"><FONT color="#ffffff"><SPAN class="titlebar">
http://www.informatik.uni-oldenburg.de/~delwi/jode/history.html</A>, last All trademarks and copyrights on this page are properties of their respective owners. <br>
updated on <em>24-Okt-1999</em>.</p> Last updated on 8-May-2000,
Copyright &copy; 1998-2000 by Jochen Hoenicke.</SPAN></FONT>
</body> </TD>
</html> </TR>
</TABLE>
</BODY>
</HTML>

@ -0,0 +1,15 @@
<?php require("header.inc"); ?>
<p><i>JODE</i> is Copyright &copy; 1998-2000 by Jochen Hoenicke. <br><br>
This program is free software; you can redistribute it and/or modify
it under the terms of the <a
href="http://www.gnu.org/copyleft/gpl.html">GNU General Public
License</a> as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.<br><br>
This program is distributed in the hope that it will be useful,
but <b>without any warranty</b>; without even the implied warranty of
<b>merchantability</b> or <b>fitness for a particular purpose</b>. See the
GNU General Public License for more details.
<?php require("footer.inc"); ?>

@ -2,35 +2,55 @@
<html> <html>
<head> <head>
<title>Java Optimize and Decompile Environment (JODE)</title> <title>Java Optimize and Decompile Environment (JODE)</title>
<meta name="robots" content="noindex"> <meta name="date" content="2000-06-30">
<meta name="date" content="2000-01-24"> <meta name="description" content="JODE - Java Optimize and Decompile Environment.">
<meta name="author" content="Jochen Hoenicke">
<meta name="keywords" content="jode, java, decompiler, obfuscator, deobfuscator, reverse engineering, free, GPL">
</head> </head>
<body> <BODY bgcolor=#FFFFFF topmargin="0" bottommargin="0" leftmargin="0" rightmargin="0" marginheight="0" marginwidth="0">
<table cellpadding=4 cellspacing=1 width=100%> <table cellpadding=4 cellspacing=1 width=100%>
<tr> <tr><td>
<td></td> </td>
<td> <img src="jode-logo.gif" alt="JODE" width=286 height=110></td> <td> <img src="jode-logo.gif" alt="JODE" width=286 height=110></td>
</tr> </tr>
<tr> <tr>
<td valign="top"> <td valign="top">
<B><a href="http://www.informatik.uni-oldenburg.de/~delwi">Homepage</a></B> <table cellspacing=0 cellpadding=3 width=100% border=0 bgcolor=eeeef8>
<br><br> <tr bgcolor="7272cc">
<a href="jode.html"><B>Jode</B></a> <td align="center"><font color="ffffff"><b>Jode</b></font></td></tr>
<ul> <tr><td align="right">
<li><a href="applet.html">Test It Online</a></li> <a href="./"><B>Home</B></a><br>
<li><a href="download.html">Download</a></li> <a href="http://sourceforge.net/project/?group_id=3790">Project&nbsp;page</a><br>
<li><a href="usage.html">Usage</a></li> <br>
<li><a href="license.html">License</a></li> <a href="./applet.html">Applet</a><br>
<li><a href="history.html">History</a></li> <a href="./download.html">Download</a><br>
<li>Links</li> <a href="./usage.html">Documentation</a><br>
<li><a href="bluesky.html">Blue Sky</a></li> <a href="./license.html">License</a><br>
</ul> <a href="./history.html">History</a><br>
<a href="./links.html">Links</a><br>
<a href="./bluesky.html">Blue&nbsp;Sky</a><tr bgcolor="7272cc">
<td align="center"><font color="ffffff"><b>Feedback</b></font></td></tr>
<tr><td align="right">
<a href="http://sourceforge.net/bugs/?group_id=3790">Bug&nbsp;Tracking</a><br>
<a href="http://sourceforge.net/forum/?group_id=3790">Public&nbsp;Forums</a><br>
<a href="http://lists.sourceforge.net/mailman/listinfo/jode-users">Mailing&nbsp;List</a><br>
<a href="http://sourceforge.net/sendmessage.html?touser=18252">Private&nbsp;Mail</a><tr bgcolor="7272cc">
<td align="center"><font color="ffffff"><b>Download</b></font></td></tr>
<tr><td align="right">
<a href="ftp://jode.sourceforge.net/pub/jode/">FTP&nbsp;server</a><br>
<a href="http://sourceforge.net/project/filelist.html?group_id=3790">Source&nbsp;releases</a></td></tr>
<tr bgcolor="ffffff"><td align="center"><br>Powered by <br>
<a href="http://sourceforge.net"><img src="http://sourceforge.net/sflogo.html?group_id=3790&type=1" border=0 width=88 height=31 alt="SourceForge"></a><br>
<br>Best viewed with <br>
<a href="http://www.anybrowser.org/campaign/"><img src="a-logo.gif" border=0 width=88 height=31 alt="Any Browser"></a><br>
</td></tr></table>
</td> </td>
<td> <td valign="top">
<h1><i>JODE</i> Links</h1> <h1><i>JODE</i> Links</h1>
<h3>Other decompilers</h3> <h3>Other decompilers</h3>
<ul> <ul>
<li><a href="http://dmoz.org/Computers/Programming/Languages/Java/Decompilers_and_Disassemblers/">The Open Directory list</a></li>
<li>A list of decompilers can be found at <a href="http://www.meurrens.org/ip-Links/Java/CodeEngineering/#tocDecompilersToJava">Marc Meurren's list</a> <li>A list of decompilers can be found at <a href="http://www.meurrens.org/ip-Links/Java/CodeEngineering/#tocDecompilersToJava">Marc Meurren's list</a>
</li> </li>
<li>A very fast decompiler is <a <li>A very fast decompiler is <a
@ -43,26 +63,61 @@ Dyer.
</ul> </ul>
<h3>Other obfuscators</h3> <h3>Other obfuscators</h3>
<ul> <ul>
<li><a href="http://dmoz.org/Computers/Programming/Languages/Java/Obfuscators/">The Open Directory list</a></li>
<li><a href="http://www.sbktech.org/hashjava_old.html">Hashjava</a> is another free obfuscator. It is no longer maintained, though, since its successor was commercialized.</li> <li><a href="http://www.sbktech.org/hashjava_old.html">Hashjava</a> is another free obfuscator. It is no longer maintained, though, since its successor was commercialized.</li>
<li><a href="http://www.zelix.com/klassmaster/index.html">Zelix <li><a href="http://www.zelix.com/klassmaster/index.html">Zelix
Klassmaster</a> does a very good flow optimization and also decrypts Klassmaster</a> does a very good flow optimization and also decrypts
strings. But <i>JODE</i> can now undo both.</li> strings. But <i>JODE</i>'s deobfuscator can undo both.</li>
<li><a href="http://www.cs.arizona.edu/~collberg/Research/">Christian S. Collberg</a> has some really interesting papers about non reversible obfuscations.</li>
</ul> </ul>
<h3>Graphical User Interface</h3> <h3>Graphical User Interface</h3>
<ul> <ul>
<li><i>JODE</i> is now used by the <a <li><i>JODE</i> is used by the <a
href="http://www.icg-online.de/jedit/JavaInsight.html">JavaInsight plugin</a> for href="http://jedit.standmed.com/plugins/JavaInsight">JavaInsight plugin</a> for
<a href="http://www.gjt.org/~sp/jedit.html">jEdit</a>.</li> <a href="http://jedit.sourceforge.net/">jEdit</a>.</li>
</ul> </ul>
</td> <h3>Miscellanous packages needed to run JODE</h3>
<dl>
<dt>CYGWIN (unix tools for win95/NT)</dt>
<dd>
<a href="http://sourceware.cygnus.com/cygwin/">http://sourceware.cygnus.com/cygwin/</a>
</dd>
<dt>JDK 1.1:</dt>
<dd>
<a href="http://java.sun.com/products/jdk/1.1/">http://java.sun.com/products/jdk/1.1/</a>
</dd>
<dt><a name="swing">Swing for JDK 1.1:</a><dt>
<dd>
<a href="http://java.sun.com/products/jfc/index.html#download-swing">http://java.sun.com/products/jfc/index.html#download-swing</a>
</dd>
<dt>JDK 1.2:</dt>
<dd>
<a href="http://java.sun.com/products/jdk/1.2/">http://java.sun.com/products/jdk/1.2/</a>
</dd>
<dt><a name="getopt">Getopt</a>:</dt>
<dd>
<a href="http://www.urbanophile.com/arenn/hacking/download.html#getopt">http://www.urbanophile.com/arenn/hacking/download.html#getopt</a>
</dd>
<dt><a name="collections">Collection Classes</a>:</dt>
<dd>I have written a small script that puts the collection classes
from the <a href="http://www.classpath.org">GNU Classpath Project</a> into
its own package (<code>org.gnu.java.util.collections</code>). You can
download the <a href="http://www.informatik.uni-oldenburg.de/~delwi/jode/collections.tar.gz">source code</a> (including
the script), or <a href="collections.jar">a precompiled jar file</a>.
</dd>
</dl>
</td></tr>
</table> </table>
<TABLE width="100%" border="0" cellspacing="0" cellpadding="2" bgcolor="737b9c">
<TR>
<TD align="center"><FONT color="#ffffff"><SPAN class="titlebar">
All trademarks and copyrights on this page are properties of their respective owners. <br>
Last updated on 8-May-2000,
Copyright &copy; 1998-2000 by Jochen Hoenicke.</SPAN></FONT>
</TD>
</TR>
</TABLE>
<hr> </BODY>
</HTML>
<p><A HREF="mailto:Jochen.Hoenicke@Informatik.Uni-Oldenburg.DE">
http://www.informatik.uni-oldenburg.de/~delwi/jode/usage.html</A>, last
updated on <em>24-Jan-2000</em>.</p>
</body>
</html>

@ -0,0 +1,62 @@
<?php require("header.inc") ?>
<h1><i>JODE</i> Links</h1>
<h3>Other decompilers</h3>
<ul>
<li><a href="http://dmoz.org/Computers/Programming/Languages/Java/Decompilers_and_Disassemblers/">The Open Directory list</a></li>
<li>A list of decompilers can be found at <a href="http://www.meurrens.org/ip-Links/Java/CodeEngineering/#tocDecompilersToJava">Marc Meurren's list</a>
</li>
<li>A very fast decompiler is <a
href="http://www.geocities.com/SiliconValley/Bridge/8617/jad.html">jad</a>
written in C++. It doesn't come with source code though, and misses
some features <i>JODE</i> has ;-)</li> <li><a
href="http://www.javaworld.com/javaworld/jw-07-1997/jw-07-decompilers.html">A
comparison of three decompilers</a> (but not <i>JODE</i>) was done by Dave
Dyer.
</ul>
<h3>Other obfuscators</h3>
<ul>
<li><a href="http://dmoz.org/Computers/Programming/Languages/Java/Obfuscators/">The Open Directory list</a></li>
<li><a href="http://www.sbktech.org/hashjava_old.html">Hashjava</a> is another free obfuscator. It is no longer maintained, though, since its successor was commercialized.</li>
<li><a href="http://www.zelix.com/klassmaster/index.html">Zelix
Klassmaster</a> does a very good flow optimization and also decrypts
strings. But <i>JODE</i>'s deobfuscator can undo both.</li>
<li><a href="http://www.cs.arizona.edu/~collberg/Research/">Christian S. Collberg</a> has some really interesting papers about non reversible obfuscations.</li>
</ul>
<h3>Graphical User Interface</h3>
<ul>
<li><i>JODE</i> is used by the <a
href="http://jedit.standmed.com/plugins/JavaInsight">JavaInsight plugin</a> for
<a href="http://jedit.sourceforge.net/">jEdit</a>.</li>
</ul>
<h3>Miscellanous packages needed to run JODE</h3>
<dl>
<dt>CYGWIN (unix tools for win95/NT)</dt>
<dd>
<a href="http://sourceware.cygnus.com/cygwin/">http://sourceware.cygnus.com/cygwin/</a>
</dd>
<dt>JDK 1.1:</dt>
<dd>
<a href="http://java.sun.com/products/jdk/1.1/">http://java.sun.com/products/jdk/1.1/</a>
</dd>
<dt><a name="swing">Swing for JDK 1.1:</a><dt>
<dd>
<a href="http://java.sun.com/products/jfc/index.html#download-swing">http://java.sun.com/products/jfc/index.html#download-swing</a>
</dd>
<dt>JDK 1.2:</dt>
<dd>
<a href="http://java.sun.com/products/jdk/1.2/">http://java.sun.com/products/jdk/1.2/</a>
</dd>
<dt><a name="getopt">Getopt</a>:</dt>
<dd>
<a href="http://www.urbanophile.com/arenn/hacking/download.html#getopt">http://www.urbanophile.com/arenn/hacking/download.html#getopt</a>
</dd>
<dt><a name="collections">Collection Classes</a>:</dt>
<dd>I have written a small script that puts the collection classes
from the <a href="http://www.classpath.org">GNU Classpath Project</a> into
its own package (<code>org.gnu.java.util.collections</code>). You can
download the <a href="http://www.informatik.uni-oldenburg.de/~delwi/jode/collections.tar.gz">source code</a> (including
the script), or <a href="collections.jar">a precompiled jar file</a>.
</dd>
</dl>
<?php require("footer.inc"); ?>

@ -0,0 +1,115 @@
<?php
$menu = array(
"Jode",
array("<B>Home</B>" , "selflink", "jode",
"Project page" , "sflink", "project/",
"-", "-", "-",
"Applet" , "selflink", "applet",
"Download" , "selflink", "download",
"Documentation", "selflink", "usage",
"License" , "selflink", "license",
"History" , "selflink", "history",
"Links" , "selflink", "links",
"Blue Sky" , "selflink", "bluesky"),
"Feedback",
array("Bug Tracking" , "sflink", "bugs/",
"Public Forums" , "sflink", "forum/",
"Mailing List" , "link",
"http://lists.sourceforge.net/mailman/listinfo/jode-users",
"Private Mail" , "link",
"http://sourceforge.net/sendmessage.php?touser=18252"),
"Download",
array("FTP server", "link", "ftp://jode.sourceforge.net/pub/jode/",
"Source releases", "sflink", "project/filelist.php"));
$images = array(
"Powered by ", "http://sourceforge.net/sflogo.php?group_id=3790&type=1",
"SourceForge", "http://sourceforge.net",
"Best viewed with ", "a-logo.gif",
"Any Browser", "http://www.anybrowser.org/campaign/");
if (eregi("^Lynx", $HTTP_USER_AGENT)) {
reset($menu);
while (list($dummy, $header) = each($menu)) {
list($dummy, $subitems) = each($menu);
echo "<b>$header:</b>\n";
reset($subitems);
while (list($dummy, $name) = each($subitems)) {
list($dummy, $type) = each($subitems);
list($dummy, $link) = each($subitems);
if ($type == "selflink") {
selflink($link);
} else if ($type == "sflink") {
sflink($link);
} else if ($type == "-") {
echo "<br>\n";
continue;
} else if ($type == "link") {
echo "<a href=\"$link\">";
}
$name = ereg_replace(" ", "&nbsp;", $name);
echo "$name</a>";
if (current($subitems)) {
echo " |\n";
}
}
echo "<br>\n\n";
}
echo "<right>\n";
reset($images);
while (list($dummy, $label) = each($images)) {
list($dummy, $src) = each($images);
list($dummy, $alt) = each($images);
list($dummy, $link) = each($images);
echo "$label<a href=\"$link\"><img src=\"$src\" border=0";
echo " width=88 height=31 alt=\"$alt\"></a>\n";
}
echo "</right>\n";
} else {
echo "<table cellspacing=0 cellpadding=3 width=100%";
echo " border=0 bgcolor=eeeef8>\n";
reset($menu);
while (list($dummy, $header) = each($menu)) {
list($dummy, $subitems) = each($menu);
echo "<tr bgcolor=\"7272cc\">\n<td align=\"center\">";
echo "<font color=\"ffffff\"><b>$header</b></font></td></tr>\n";
echo "<tr><td align=\"right\">\n";
reset($subitems);
while (list($dummy, $name) = each($subitems)) {
list($dummy, $type) = each($subitems);
list($dummy, $link) = each($subitems);
if ($type == "selflink") {
selflink($link);
} else if ($type == "sflink") {
sflink($link);
} else if ($type == "-") {
echo "<br>\n";
continue;
} else if ($type == "link") {
echo "<a href=\"$link\">";
}
$name = ereg_replace(" ", "&nbsp;", $name);
echo "$name</a>";
if (current($subitems)) {
echo "<br>\n";
}
}
}
echo "</td></tr>\n";
echo "<tr bgcolor=\"ffffff\"><td align=\"center\">";
reset($images);
while (list($dummy, $label) = each($images)) {
list($dummy, $src) = each($images);
list($dummy, $alt) = each($images);
list($dummy, $link) = each($images);
echo "<br>$label<br>\n";
echo "<a href=\"$link\"><img src=\"$src\" border=0";
echo " width=88 height=31 alt=\"$alt\"></a><br>\n";
}
echo "</td></tr></table>\n";
}
?>

@ -2,42 +2,54 @@
<html> <html>
<head> <head>
<title>Java Optimize and Decompile Environment (JODE)</title> <title>Java Optimize and Decompile Environment (JODE)</title>
<meta name="robots" content="noindex"> <meta name="date" content="2000-06-30">
<meta name="date" content="2000-01-30"> <meta name="description" content="JODE - Java Optimize and Decompile Environment.">
<meta name="author" content="Jochen Hoenicke">
<meta name="keywords" content="jode, java, decompiler, obfuscator, deobfuscator, reverse engineering, free, GPL">
</head> </head>
<body> <BODY bgcolor=#FFFFFF topmargin="0" bottommargin="0" leftmargin="0" rightmargin="0" marginheight="0" marginwidth="0">
<table cellpadding=4 cellspacing=1 width=100%> <table cellpadding=4 cellspacing=1 width=100%>
<tr> <tr><td>
<td></td> </td>
<td> <img src="jode-logo.gif" alt="JODE" width=286 height=110></td> <td> <img src="jode-logo.gif" alt="JODE" width=286 height=110></td>
</tr> </tr>
<tr> <tr>
<td valign="top"> <td valign="top">
<B><a href="http://www.informatik.uni-oldenburg.de/~delwi">Homepage</a></B> <table cellspacing=0 cellpadding=3 width=100% border=0 bgcolor=eeeef8>
<br><br> <tr bgcolor="7272cc">
<a href="jode.html"><B>Jode</B></a> <td align="center"><font color="ffffff"><b>Jode</b></font></td></tr>
<ul> <tr><td align="right">
<li><a href="applet.html">Test It Online</a></li> <a href="./"><B>Home</B></a><br>
<li><a href="download.html">Download</a></li> <a href="http://sourceforge.net/project/?group_id=3790">Project&nbsp;page</a><br>
<li>Usage<br> <br>
<a href="#decompiler">Decompiler</a><br> <a href="./applet.html">Applet</a><br>
&nbsp;&nbsp;&nbsp;<a href="#cmdline">Command&nbsp;Line</a><br> <a href="./download.html">Download</a><br>
&nbsp;&nbsp;&nbsp;<a href="#awt">AWT&nbsp;Interface</a><br> <a href="./usage.html">Documentation</a><br>
&nbsp;&nbsp;&nbsp;<a href="#swing">Swing&nbsp;Interface</a><br> <a href="./license.html">License</a><br>
&nbsp;&nbsp;&nbsp;<a href="#java">Java&nbsp;Interface</a><br> <a href="./history.html">History</a><br>
<a href="#optimizer">Obfuscator</a><br> <a href="./links.html">Links</a><br>
</li><br> <a href="./bluesky.html">Blue&nbsp;Sky</a><tr bgcolor="7272cc">
<li><a href="license.html">License</a></li> <td align="center"><font color="ffffff"><b>Feedback</b></font></td></tr>
<li><a href="history.html">History</a></li> <tr><td align="right">
<li><a href="links.html">Links</a></li> <a href="http://sourceforge.net/bugs/?group_id=3790">Bug&nbsp;Tracking</a><br>
<li><a href="bluesky.html">Blue Sky</a></li> <a href="http://sourceforge.net/forum/?group_id=3790">Public&nbsp;Forums</a><br>
</ul> <a href="http://lists.sourceforge.net/mailman/listinfo/jode-users">Mailing&nbsp;List</a><br>
<a href="http://sourceforge.net/sendmessage.html?touser=18252">Private&nbsp;Mail</a><tr bgcolor="7272cc">
<td align="center"><font color="ffffff"><b>Download</b></font></td></tr>
<tr><td align="right">
<a href="ftp://jode.sourceforge.net/pub/jode/">FTP&nbsp;server</a><br>
<a href="http://sourceforge.net/project/filelist.html?group_id=3790">Source&nbsp;releases</a></td></tr>
<tr bgcolor="ffffff"><td align="center"><br>Powered by <br>
<a href="http://sourceforge.net"><img src="http://sourceforge.net/sflogo.html?group_id=3790&type=1" border=0 width=88 height=31 alt="SourceForge"></a><br>
<br>Best viewed with <br>
<a href="http://www.anybrowser.org/campaign/"><img src="a-logo.gif" border=0 width=88 height=31 alt="Any Browser"></a><br>
</td></tr></table>
</td> </td>
<td> <td valign="top">
<a name="decompiler"> <a name="decompiler">
<h1>Using the Decompiler</h1></a> <h1>Using the Decompiler</h1></a>
After you have <a href="download.html">downloaded</a> the necessary After you have <a href="./download.html">downloaded</a> the necessary
packages, put them into your <tt>CLASSPATH</tt>: packages, put them into your <tt>CLASSPATH</tt>:
<ul><li>Under Windows you have to start a MSDOS session and type <ul><li>Under Windows you have to start a MSDOS session and type
@ -71,10 +83,9 @@ following command will give a complete list of the available commands:
<a name="awt"><h3>AWT Interface</h3></a> <a name="awt"><h3>AWT Interface</h3></a>
The AWT Interface looks exactly like the <a The AWT Interface looks exactly like the <a href="./applet.html">applet</a>. In fact the applet uses the AWT Interface. You start it
href="applet.html">applet</a>. In fact the applet uses the AWT after setting the <tt>CLASSPATH</tt> (see <a href="./usage.html#decompiler">above</a>), with
Interface. You start it after setting the <tt>CLASSPATH</tt> (see <a
href="#decompiler">above</a>), with
<pre>java jode.decompiler.Window</pre> <pre>java jode.decompiler.Window</pre>
In the classpath line you can enter a number of jar files, zip files In the classpath line you can enter a number of jar files, zip files
@ -86,7 +97,7 @@ appear. You can save it via the <code>save</code> button.
<a name="swing"><h3>Swing Interface</h3></a> <a name="swing"><h3>Swing Interface</h3></a>
For the swing interface you need java version 1.2 or the separately For the swing interface you need java version 1.2 or the separately
available swing package (see <a href="download.html#swing">download available swing package (see <a href="./links.html#swing">link
page</a>. You can invoke it like this: page</a>. You can invoke it like this:
<pre> <pre>
java jode.swingui.Main --classpath classes.jar java jode.swingui.Main --classpath classes.jar
@ -106,13 +117,15 @@ you won't find a save option there.<br>
<a name="java"><h3>Java Interface</h3></a> <a name="java"><h3>Java Interface</h3></a>
If you want to integrate <i>JODE</i> into your own java program, you If you want to integrate <i>JODE</i> into your own java program, you
can use the <code>jode.decompiler.Decompile</code> class. Note that can use the <a
the GPL only allows you to integrate <i>JODE</i> into GPL programs. href="Decompiler.java"><code>jode.decompiler.Decompiler</code></a>
Please contact me if, so I can put you on my <a href="links.html">link class. Note that the GPL only allows you to integrate <i>JODE</i>
page</a> and keep you informed about new releases.<br> into GPL programs. Please contact me if you use <i>JODE</i> in this
way.<br>
You may use this <a href="jode-embedded.jar">stripped down jar You may use this <a
archive</a> containing all necessery classes. href="ftp://jode.sourceforge.net/pub/jode/jode-embedded.jar">stripped
down jar archive</a> containing all necessary classes.
<a name="optimizer"><h1>Using the Obfuscator</h1> <a name="optimizer"><h1>Using the Obfuscator</h1>
@ -252,15 +265,17 @@ change the bytecode interface.</p>
<pre> <pre>
post = new LocalOptimizer, new RemovePopAnalyzer post = new LocalOptimizer, new RemovePopAnalyzer
</pre> </pre>
</td></tr>
</td>
</table> </table>
<TABLE width="100%" border="0" cellspacing="0" cellpadding="2" bgcolor="737b9c">
<hr> <TR>
<TD align="center"><FONT color="#ffffff"><SPAN class="titlebar">
<p><A HREF="mailto:Jochen.Hoenicke@Informatik.Uni-Oldenburg.DE"> All trademarks and copyrights on this page are properties of their respective owners. <br>
http://www.informatik.uni-oldenburg.de/~delwi/jode/usage.html</A>, last Last updated on 8-May-2000,
updated on <em>30-Jan-2000</em>.</p> Copyright &copy; 1998-2000 by Jochen Hoenicke.</SPAN></FONT>
</TD>
</body> </TR>
</html> </TABLE>
</BODY>
</HTML>

@ -0,0 +1,230 @@
<?php require("header.inc") ?>
<?php /* MOVE TO menu.inc
<a href="#decompiler">Decompiler</a><br>
&nbsp;&nbsp;&nbsp;<a href="#cmdline">Command&nbsp;Line</a><br>
&nbsp;&nbsp;&nbsp;<a href="#awt">AWT&nbsp;Interface</a><br>
&nbsp;&nbsp;&nbsp;<a href="#swing">Swing&nbsp;Interface</a><br>
&nbsp;&nbsp;&nbsp;<a href="#java">Java&nbsp;Interface</a><br>
<a href="#optimizer">Obfuscator</a><br>
*/ ?>
<a name="decompiler">
<h1>Using the Decompiler</h1></a>
After you have <?php selflink("download") ?>downloaded</a> the necessary
packages, put them into your <tt>CLASSPATH</tt>:
<ul><li>Under Windows you have to start a MSDOS session and type
something like:
<pre>
set CLASSPATH=C:\download\jode-xxx.jar;C:\swing\swingall.jar
</pre>
</li><li>Under Unix you start a shell and type (for bourne shell):
<pre>export CLASSPATH=/tmp/jode-xxx.jar:/usr/local/swing/swingall.jar</pre>
or for csh:
<pre>setenv CLASSPATH /tmp/jode-xxx.jar:/usr/local/swing/swingall.jar</pre>
</ul>
<br>
There is also a batch file for windows and a script file for unix,
that you can use. Adapt the CLASSPATH in the file and put it to a
convenient location.
<pre>
jar -xvf jode-xxx.jar bin/jode.bat <i>resp.</i> bin/jode
</pre>
<a name="cmdline"><h3>Command Line Interface</h3></a>
The most powerful way to start <I>JODE</I>'s decompiler is the command
line interface. Some people don't like long command lines; they
should go to the next section. <br>
Start the class <tt>jode.decompiler.Main</tt> with the options. The
following command will give a complete list of the available commands:
<pre>java jode.decompiler.Main --help</pre>
<a name="awt"><h3>AWT Interface</h3></a>
The AWT Interface looks exactly like the <?php selflink("applet") ?>
applet</a>. In fact the applet uses the AWT Interface. You start it
after setting the <tt>CLASSPATH</tt> (see <?php
selflink("usage#decompiler") ?>above</a>), with
<pre>java jode.decompiler.Window</pre>
In the classpath line you can enter a number of jar files, zip files
and directories separated by comma(<tt>,</tt>). Then enter the
dot(<tt>.</tt>) separated name of the class you want to decompile.
Press the <code>start</code> button and the decompiled class should
appear. You can save it via the <code>save</code> button.
<a name="swing"><h3>Swing Interface</h3></a>
For the swing interface you need java version 1.2 or the separately
available swing package (see <?php selflink("links#swing") ?>link
page</a>. You can invoke it like this:
<pre>
java jode.swingui.Main --classpath classes.jar
</pre>
The swing interface will show the package hierarchie of all classes
in the classpath on the left side. You can now select a class and the
decompiled code will appear on the right side. Via the menu, you may
change the classpath or switch between package hierarchie tree and
class inheritence tree.<br>
The swing interface is very useful to browse through class files if
you don't have the source code. You can also use it to trace bugs in
library code. It is not meant to generate <tt>java</tt> files and so
you won't find a save option there.<br>
<a name="java"><h3>Java Interface</h3></a>
If you want to integrate <i>JODE</i> into your own java program, you
can use the <a
href="Decompiler.java"><code>jode.decompiler.Decompiler</code></a>
class. Note that the GPL only allows you to integrate <i>JODE</i>
into GPL programs. Please contact me if you use <i>JODE</i> in this
way.<br>
You may use this <a
href="ftp://jode.sourceforge.net/pub/jode/jode-embedded.jar">stripped
down jar archive</a> containing all necessary classes.
<a name="optimizer"><h1>Using the Obfuscator</h1>
To use the obfuscator you should first create a script file, say <a
href="myproject.jos"><tt>myproject.jos</tt></a>. Then you can invoke the
obfuscator with:
<pre>
java jode.obfuscator.Main myproject.jos
</pre>
<p>The script file should contain the following options: </p>
<p>First select the classpath. You should include everything in the
classpath that you need to run your application. This also includes
the system class files (Sun puts them into <code>classes.zip</code> or
<code>rt.jar</code>))</p>
<pre>
classpath = "c:\\jdk1.2\\jre\\lib\\rt.jar","d:\\project\\java",
"ftp://www.myorg.org/pub/classlib.jar"
</pre>
<p>Specify where you want the obfuscated classes to go. I recommend
to write them directly into a zip file, but you can also give a
directory.</p>
<pre>
dest = "obfuscated.zip"
</pre>
<p>You can make <i>JODE</i> write its translation table. This table
can be used later to undo the name obfuscation, or you can look there
to decrypt exceptions you may get.</p>
<pre>
revtable = "translat.tbl"
</pre>
<p>Select what you want to strip. There are several
possibilities, which can be separated by comma(<tt>,</tt>):</p>
<dl>
<dt>unreach</dt>
<dd>strip unreachable methods and classes.</dd>
<dt>source</dt>
<dd>remove the name of the java file (exceptions will get unreadable).</dd>
<dt>lnt</dt>
<dd>remove the line number table (exceptions will get unreadable).</dd>
<dt>lvt</dt>
<dd>remove the local variable table (debugging doesn't work).</dd>
<dt>inner</dt>
<dd>strip inner class info (reflection doesn't work correctly).</dd>
</dl>
<pre>
strip = "unreach","lvt","inner"
</pre>
<p>Select the packages and classes you want to obfuscate. You should
only include libraries, that you don't ship separately. If you give a
package, all classes and subpackages are loaded. You can also use
<code>*</code> as wild card, that matches everything (including dots).
</p>
<pre>
load = new WildCard { value = "org.myorg.myproject" },
new WildCard { value = "org.myorg.mylib*" },
new WildCard { value = "org.otherorg.shortlib" }
</pre>
<p>Select the methods and classes you want to preserve. This is
the <tt>main</tt> method for applications and the default constructor
<tt>&lt;init&gt;.()V</tt> for applets, resource bundles and other classes
that you load manually at runtime.<br> You have to give the method
name and the type signature to identify your method. <tt>javap
-s</tt> will show you the type signatures for your classes, but you
may also use <tt>*</tt>, to select all methods with that name.</p>
<pre>
preserve = new WildCard { value = "org.myorg.ApplicationClass.main.*" },
new WildCard { value = "org.myorg.AppletClass.&lt;init&gt;.()V" },
new WildCard { value = "org.resources.Bundle*.&lt;init&gt;.()V" },
</pre>
<p>If you want to obfuscate (or just shorten) the identifier you can
specify a renamer. There are currently following renamer
available</p>
<dl><dt>StrongRenamer</dt>
<dd>Renames to the shortest possible name. You can give a charset
that should be used. It uses the same name as much as possible.</dd>
<dt>UniqueRenamer</dt>
<dd>Renames to unique identifier of the form <tt>xxx123</tt>. Useful
to reduce name conflicts, before you decompile an obfuscated package.</dd>
<dt>NameSwapper</dt>
<dd>This renamer just swaps the names. This is a funny obfuscation
option that is not very strong, but very confusing.</dd>
<dt>KeywordRenamer</dt>
<dd>Renames identifiers to keyword. You can give your own list of
keywords as parameters. Resulting code is not decompilable directly,
<b>but it is <i>not</i> legal bytecode either</b>. Some paranoid
web browsers refuse to run applets containing keywords as identifiers
(and they are completely within the Java VM spec).</dd>
</dl>
<pre>
renamer = new StrongRenamer
</pre>
<p>You can also create a renaming table with the same format as the
table written by revtable. The entries in the table get precedence
over renamer. Entries not in the table will get renamed by the
renamer.<p>
<pre>
table = "translat.tbl"
</pre>
<p>Now you can select the analyzer. The purpose of the
analyzer is to mark all reachable methods, find out which methods
needs to get the same name (overloading), and which method names
mustn't change (overload of library methods, e.g. <tt>nextElement</tt>
for <tt>Enumeration</tt>s). There are currently two analyzers.
<dl><dt>SimpleAnalyzer</dt>
<dd>Straight forward analyzer. It is fast and will remove dead code
on method basis.</dd>
<dd><dt>ConstantAnalyzer</dt>
<dd>Strong analyzer that will determine, which fields and instructions
have constant values. It will remove dead code on instruction basis
and replace constant instruction with a load of the constant, or
remove them completely.<br> This analyzer is especially useful to
revert the flow obfuscation of some other obfuscators.</dd>
</dl>
</p>
<pre>
analyzer = new ConstantAnalyzer
</pre>
<p>Pre- and Post transformers transform the bytecode before
resp. after the Analyzer runs. Using this default should be okay.
You may remove the LocalOptimizer, though, if you have problems.</p>
<p>In the future I may add some new post transformers, that do string
encryption, flow obfuscation and similar things. If you want to write
your own Transformers please contact me, since the next version will
change the bytecode interface.</p>
<pre>
post = new LocalOptimizer, new RemovePopAnalyzer
</pre>
<?php require("footer.inc") ?>
Loading…
Cancel
Save