You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
67 lines
2.7 KiB
67 lines
2.7 KiB
<?php require("header.inc"); ?>
|
|
|
|
<P><i>JODE</i> is a java package containing a decompiler and an
|
|
optimizer for java. This package is <?php selflink("license")
|
|
?>freely available</a> under the GNU GPL.<p>
|
|
|
|
<P>The decompiler reads in <tt>class</tt> files 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. However, <i>JODE</i> does its job quite
|
|
well, so you should give it a try and <? 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> 1.1 is out. With support for javac v8 (jdk 1.3). </li>
|
|
<li><i>JODE</i> is now hosted by <a href="http://sourceforge.net/">SourceForge</a>.</li>
|
|
<li>Now long lines are automatically broken.</li>
|
|
<li><b>Inner and anonymous</b> classes are automatically decompiled.</li>
|
|
<li>The optimizer (aka obfuscator) can be customized via a small
|
|
config file</li>
|
|
</ul>
|
|
|
|
<h2>Known bugs of the decompiler</h2>
|
|
|
|
<p>Some jdk1.3 synthetic access functions aren't understood. The
|
|
produced source contains access$xxx functions, but it still compiles.</p>
|
|
|
|
<p>There may be other bugs, that cause Exceptions or invalid code.
|
|
If you have such a problems don't hesitate to issue a bug report.
|
|
Please include the <code>class</code> file if possible.</p>
|
|
|
|
<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>
|
|
|
|
<?php require("footer.inc"); ?>
|
|
|