Some copyright/documentation updates

* src/net/sf/jode/bytecode/BinaryInfo.java (ACC_*): added
constants describing modifier attributes.
* src/net/sf/jode/bytecode/BasicBlockReader.java
(convertHandlers): remove empty handlers.
(readCode): merge adjacent try-blocks (splitted by javac-1.4
return rule).
* src/net/sf/jode/bytecode/FieldInfo.java (syntheticFlag):
removed, use modifier and ACC_SYNTHETIC (new in java 5) instead.
Changed all usages.  When writing it currently writes out both
old and new synthetic format.
(getSignature): New method to return full generic signature.
* src/net/sf/jode/bytecode/MethodInfo.java
(syntheticFlag, getSignature): likewise.
* src/net/sf/jode/bytecode/ClassInfo.java (getSignature):
new method to return full generic signature.
* src/net/sf/jode/decompiler/MethodAnalyzer.java (skipWriting):
Skip java 5 bridge methods.
* src/net/sf/jode/expr/InvokeOperator.java (getClassAnalyzer):
Check for null callee.
* src/net/sf/jode/expr/FlowBlock.java (analyze): New order for
T1,T2 analysis:  Do not do T1 analysis when the block has more
than one real successor and the next block can be easily merged.
See comment for more information.


git-svn-id: https://svn.code.sf.net/p/jode/code/trunk@1383 379699f6-c40d-0410-875b-85095c16579e

jode/ChangeLog

@@ -1,3 +1,29 @@
+2004-08-06  Jochen Hoenicke  <hoenicke@marge.Informatik.Uni-Oldenburg.DE>
+
+	* src/net/sf/jode/bytecode/BinaryInfo.java (ACC_*): added 
+	constants describing modifier attributes.
+	* src/net/sf/jode/bytecode/BasicBlockReader.java
+	(convertHandlers): remove empty handlers.
+	(readCode): merge adjacent try-blocks (splitted by javac-1.4
+	return rule).
+	* src/net/sf/jode/bytecode/FieldInfo.java (syntheticFlag):
+	removed, use modifier and ACC_SYNTHETIC (new in java 5) instead.
+	Changed all usages.  When writing it currently writes out both
+	old and new synthetic format.
+	(getSignature): New method to return full generic signature.
+	* src/net/sf/jode/bytecode/MethodInfo.java
+	(syntheticFlag, getSignature): likewise.
+	* src/net/sf/jode/bytecode/ClassInfo.java (getSignature): 
+	New method to return full generic signature.
+	* src/net/sf/jode/decompiler/MethodAnalyzer.java (skipWriting):
+	Skip java 5 bridge methods.
+	* src/net/sf/jode/expr/InvokeOperator.java (getClassAnalyzer):
+	Check for null callee.
+	* src/net/sf/jode/expr/FlowBlock.java (analyze): New order for
+	T1,T2 analysis:  Do not do T1 analysis when the block has more
+	than one real successor and the next block can be easily merged.
+	See comment for more information.
+	
 2004-08-05  Jochen Hoenicke  <hoenicke@marge.Informatik.Uni-Oldenburg.DE>
 
 	* build.xml: replace execon with apply.

jode/build.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- Jakarta-Ant build file for jode, Copyright (C) 1999-2001 Jochen Hoenicke.
+<!-- Jakarta-Ant build file for jode, Copyright (C) 1999-2004 Jochen Hoenicke.
 
  This program is free software; you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
@@ -146,6 +146,7 @@
     <mkdir dir="${build}"/>
     <javac srcdir="${src}"
 	   destdir="${build}"
+	   debug="true"
 	   classpathref="project.classpath"
 	   deprecation="on">
     <exclude name="net/sf/jode/obfuscator/modules/RemovePopAnalyzer.java"/>
@@ -272,7 +273,7 @@
 	     windowtitle="Jode ${version} API Specification"
 	     header='&lt;b&gt;&lt;a href="http://jode.sourceforge.net/"&gt;Jode&lt;/a&gt; ${version}&lt;/b&gt;&lt;br&gt;&lt;font size="-2"&gt;Build ${date}&lt;/font&gt;'
 	     overview="${src}/net/sf/jode/overview.html"
-	     bottom='Copyright &amp;copy; 1998-2001 by Jochen Hoenicke.'
+	     bottom='Copyright &amp;copy; 1998-2004 by Jochen Hoenicke.'
 	     sourcepath="${src}"
 	     destdir="${api.doc}"
 	     use="yes">
@@ -298,6 +299,7 @@
     <mkdir dir="${test.build}"/>
     <javac srcdir="${test.src}"
 	   destdir="${test.build}"
+	   debug="true"
 	   classpathref="project.classpath"
 	   classpath="${build}"
 	   deprecation="on">

jode/src/net/sf/jode/GlobalOptions.java

@@ -25,7 +25,7 @@ public class GlobalOptions {
     public final static String version = "@VERSION@";
     public final static String email = "jochen@gnu.org";
     public final static String copyright = 
-	"Jode (c) 1998-2001 Jochen Hoenicke <"+email+">";
+	"Jode (c) 1998-2004 Jochen Hoenicke <"+email+">";
     public final static String URL = "http://jode.sourceforge.net/";
 
     public static PrintWriter err = new PrintWriter(System.err, true);

jode/src/net/sf/jode/bytecode/BasicBlockReader.java

@@ -224,25 +224,27 @@ class BasicBlockReader implements Opcodes {
     private Handler[] convertHandlers() {
 	int newCount = 0;
 	for (int i=0; i < handlers.length; i++) {
+	    while (handlers[i].start < handlers[i].end
+		   && infos[handlers[i].start].blockNr == -1)
+		handlers[i].start = infos[handlers[i].start].nextAddr;
+	    if (handlers[i].start == handlers[i].end)
+		continue;
+
+	    while (handlers[i].end < infos.length
+		   && infos[handlers[i].end].blockNr == -1)
+		handlers[i].end = infos[handlers[i].end].nextAddr;
 	    if ((infos[handlers[i].catcher].flags & IS_REACHABLE) != 0)
 		newCount++;
 	}
 	Handler[] newHandlers = new Handler[newCount];
 	int ptr = 0;
-	for (int i=0; i<handlers.length; i++) {
-	    int start = handlers[i].start;
-	    while (infos[start].blockNr == -1)
-		start = infos[start].nextAddr;
-	    int end = handlers[i].end;
-	    while (end < infos.length
-		   && infos[end].blockNr == -1)
-		end = infos[end].nextAddr;
-	    int endBlock = end < infos.length
-		? infos[end].blockNr : blocks.length;
-	    
-	    if ((infos[handlers[i].catcher].flags & IS_REACHABLE) != 0) {
+	for (int i=0; i<handlers.length; i++) {	    
+	    if (handlers[i].start < handlers[i].end
+		&& (infos[handlers[i].catcher].flags & IS_REACHABLE) != 0) {
+		int endBlock = handlers[i].end < infos.length
+		    ? infos[handlers[i].end].blockNr : blocks.length;
 		newHandlers[ptr++] = new Handler
-		    (blocks[infos[start].blockNr], 
+		    (blocks[infos[handlers[i].start].blockNr], 
 		     blocks[endBlock - 1],
 		     getSuccBlock(handlers[i].catcher),
 		     handlers[i].type);
@@ -856,6 +858,17 @@ class BasicBlockReader implements Opcodes {
 	    handlers[i].type = (index == 0) ? null
 		: cp.getClassName(index);
 
+	    if (i > 0 && handlers[i].start == handlers[i-1].end
+		&& handlers[i].catcher == handlers[i-1].catcher
+		&& handlers[i].type == handlers[i-1].type) {
+		/* Javac 1.4 splits handlers at return instruction
+		 * (see below).  We merge them together here.
+		 */
+		handlers[i-1].end = handlers[i].end;
+		handlersLength--;
+		i--;
+	    }
+
 	    if ((GlobalOptions.debuggingFlags
 		 & GlobalOptions.DEBUG_BYTECODE) != 0) 
 		GlobalOptions.err.println("Handler "+handlers[i].start
@@ -870,6 +883,7 @@ class BasicBlockReader implements Opcodes {
 		 */
 		handlersLength--;
 		i--;
+		continue;
 	    }
 
 	    if (handlers[i].start <= handlers[i].catcher
@@ -883,6 +897,7 @@ class BasicBlockReader implements Opcodes {
 		if (handlers[i].start == handlers[i].catcher) {
 		    handlersLength--;
 		    i--;
+		    continue;
 		} else {
 		    handlers[i].end = handlers[i].catcher;
 		}

jode/src/net/sf/jode/bytecode/BinaryInfo.java

@@ -61,6 +61,79 @@ import java.util.Iterator;
  * @author Jochen Hoenicke 
  */
 public class BinaryInfo {
+    /**
+     * The bit mask representing public modifier.
+     */
+    public static int ACC_PUBLIC     = 0x0001;
+    /**
+     * The bit mask representing private modifier.
+     */
+    public static int ACC_PRIVATE    = 0x0002;
+    /**
+     * The bit mask representing protected modifier.
+     */
+    public static int ACC_PROTECTED  = 0x0004;
+    /**
+     * The bit mask representing static modifier.
+     */
+    public static int ACC_STATIC     = 0x0008;
+    /**
+     * The bit mask representing final modifier.
+     */
+    public static int ACC_FINAL      = 0x0010;
+    /**
+     * The bit mask representing the ACC_SUPER modifier for classes.
+     * This is a special modifier that only has historic meaning.  Every
+     * class should have this set.
+     */
+    public static int ACC_SUPER      = 0x0020;
+    /**
+     * The bit mask representing volatile modifier for fields.
+     */
+    public static int ACC_VOLATILE   = 0x0040;
+    /**
+     * The bit mask representing synthetic bridge method.  This is
+     * used when a non-generic method overrides a generic method of 
+     * super class/interface.
+     */
+    public static int ACC_BRIDGE     = 0x0040;
+    /**
+     * The bit mask representing transient fields.
+     */
+    public static int ACC_TRANSIENT  = 0x0080;
+    /**
+     * The bit mask representing varargs methods.
+     */
+    public static int ACC_VARARGS    = 0x0080;
+    /**
+     * The bit mask representing enum fields.
+     */
+    public static int ACC_ENUM       = 0x0100;
+    /**
+     * The bit mask representing native methods.
+     */
+    public static int ACC_NATIVE     = 0x0100;
+    /**
+     * The bit mask representing interfaces.
+     */
+    public static int ACC_INTERFACE  = 0x0200;
+    /**
+     * The bit mask representing abstract modifier.
+     */
+    public static int ACC_ABSTRACT   = 0x0400;
+    /**
+     * The bit mask representing annotation classes.
+     */
+    public static int ACC_ANNOTATION = 0x0800;
+    /**
+     * The bit mask representing strictfp modifier.
+     */
+    public static int ACC_STRICT     = 0x0800;
+    /**
+     * The bit mask representing synthetic fields/methods and classes.
+     */
+    public static int ACC_SYNTHETIC  = 0x1000;
+
     private Map unknownAttributes = null;
 
     void skipAttributes(DataInputStream input) throws IOException {
@@ -174,8 +247,8 @@ public class BinaryInfo {
     /**
      * Drops information from this info.  Override this to drop your
      * own info and don't forget to call the method of the super class.
-     * @param howMuch the constant that was given to the {@link
-     * ClassInfo#drop} function when loading this class.
+     * @param keep the constant representing how much information we
+     * should keep (see {@link ClassInfo#load}).
      */
     protected void drop(int keep) {
 	if (keep < ClassInfo.ALL)
@@ -214,13 +287,14 @@ public class BinaryInfo {
      * Overwrite this method if you want to add your own attributes.
      * All constants you need from the growable constant pool must
      * have been previously registered by the {@link #prepareAttributes}
-     * method.</p>
+     * method.  This method must not add new constants to the pool</p>
      *
      * First call the method of the super class.  Afterwrites write
      * each of your own attributes including the attribute header
      * (name and length entry).
      *
-     * @param gcp The growable constant pool, which is not growable anymore.
+     * @param constantPool The growable constant pool, which is not 
+     * growable anymore (see above).
      * @param output the data output stream.  You must write exactly
      * as many bytes to it as you have told with the {@link
      * #getAttributeSize} method.

jode/src/net/sf/jode/bytecode/ClassInfo.java

@@ -128,6 +128,9 @@ import java.lang.reflect.Modifier;
  *   Every class (resp. interfaces) can implement (resp. extend) 
  *   zero or more interfaces.
  * </dd>
+ * <dt>signature</dt><dd>The classes super class and interfaces with
+ * template information.</dd>
+ *
  * <dt>fields</dt><dd>
  *   Fields are represented as {@link FieldInfo} objects.
  * </dd>
@@ -569,13 +572,13 @@ public final class ClassInfo extends BinaryInfo implements Comparable {
 	} else if (howMuch >= ClassInfo.OUTERCLASS
 		   && name.equals("InnerClasses")) {
 	    readInnerClassesAttribute(length, cp, input);
+	} else if (name.equals("Signature")) {
+	    signature = cp.getUTF8(input.readUnsignedShort());
 	} else if (name.equals("Deprecated")) {
 	    deprecatedFlag = true;
 	    if (length != 0)
 		throw new ClassFormatException
 		    ("Deprecated attribute has wrong length");
-	} else if (name.equals("Signature")) {
-	    signature = cp.getUTF8(input.readUnsignedShort());
 	} else
 	    super.readAttribute(name, length, cp, input, howMuch);
     }
@@ -1189,13 +1192,34 @@ public final class ClassInfo extends BinaryInfo implements Comparable {
         return interfaces;
     }
 
+    /**
+     * Gets the type signature including template information of the class.
+     * <b>WARNING:</b> This field may disappear and merged into getType later.
+     * @return the type signature.
+     * @see TypeSignature
+     */
+    public String getSignature() {
+        if (status < HIERARCHY)
+            throw new IllegalStateException("status is "+status);
+        if (signature != null)
+	    return signature;
+	StringBuffer sb = new StringBuffer();
+	sb.append('L').append(superclass.getName().replace('.','/'))
+	    .append(";");
+	for (int i = 0; i < interfaces.length; i++) {
+	    sb.append('L').append(interfaces[i].getName().replace('.','/'))
+		.append(";");
+	}
+	return sb.toString();
+    }
+
     /**
      * Gets the modifiers of this class, e.g. public or abstract.  The
      * information is only available if at least {@link #HIERARCHY} is
      * loaded.
      * @return a bitboard of the modifiers.
      * @see Class#getModifiers
-     * @see Modifier
+     * @see BinaryInfo#ACC_PUBLIC ACC_* fields in BinaryInfo
      */
     public int getModifiers() {
         if (modifiers == -1)

jode/src/net/sf/jode/bytecode/ClassPath.java

@@ -518,7 +518,7 @@ public class ClassPath  {
      * description for more information, which kind of paths are
      * supported. When a class or a file is not found in the class
      * path the fallback is used.
-     * @param path An array of paths.
+     * @param paths An array of paths.
      * @param fallback The fallback classpath.
      */
     public ClassPath(String[] paths, ClassPath fallback) {
@@ -530,7 +530,7 @@ public class ClassPath  {
      * Creates a new class path for the given path.  See the class
      * description for more information, which kind of paths are
      * supported.
-     * @param path An array of paths.
+     * @param paths An array of paths.
      */
     public ClassPath(String[] paths) {
 	initPath(paths);
@@ -971,7 +971,7 @@ public class ClassPath  {
 
     /**
      * Get a list of all classes and packages in the given package.
-     * @param package a dot-separated package name.
+     * @param packageName a dot-separated package name.
      * @return An enumeration with all class/subpackages in the given
      * package.  If package doesn't denote a package it returns null.
      */

jode/src/net/sf/jode/bytecode/FieldInfo.java

@@ -37,6 +37,9 @@ import java.lang.Comparable;
  * <dt>type</dt><dd>The field's {@link TypeSignature type signature}
  * in bytecode format.</dd>
  *
+ * <dt>signature</dt><dd>The field's {@link TypeSignature type signature}
+ * in bytecode format including template information.</dd>
+ *
  * <dt>modifiers</dt><dd>The modifiers of the field like private, public etc.
  * These are created by or-ing the constants {@link Modifier#PUBLIC},
  * {@link Modifier#PRIVATE}, {@link Modifier#PROTECTED}, 
@@ -65,7 +68,6 @@ public final class FieldInfo extends BinaryInfo implements Comparable {
     String typeSig;
 
     Object constant;
-    boolean syntheticFlag;
     boolean deprecatedFlag;
     /**
      * The type signature that also contains template information.
@@ -104,7 +106,7 @@ public final class FieldInfo extends BinaryInfo implements Comparable {
 	    int index = input.readUnsignedShort();
 	    constant = cp.getConstant(index);
 	} else if (name.equals("Synthetic")) {
-	    syntheticFlag = true;
+	    modifier |= ACC_SYNTHETIC;
 	    if (length != 0)
 		throw new ClassFormatException
 		    ("Synthetic attribute has wrong length");
@@ -140,7 +142,7 @@ public final class FieldInfo extends BinaryInfo implements Comparable {
 	    else
 		gcp.putConstant(constant);
 	}
-	if (syntheticFlag)
+	if (isSynthetic())
 	    gcp.putUTF8("Synthetic");
 	if (deprecatedFlag)
 	    gcp.putUTF8("Deprecated");
@@ -151,7 +153,7 @@ public final class FieldInfo extends BinaryInfo implements Comparable {
 	int count = super.getAttributeCount();
 	if (constant != null)
 	    count++;
-	if (syntheticFlag)
+	if (isSynthetic())
 	    count++;
 	if (deprecatedFlag)
 	    count++;
@@ -173,7 +175,7 @@ public final class FieldInfo extends BinaryInfo implements Comparable {
 		index = gcp.putConstant(constant);
 	    output.writeShort(index);
 	}
-	if (syntheticFlag) {
+	if (isSynthetic()) {
 	    output.writeShort(gcp.putUTF8("Synthetic"));
 	    output.writeInt(0);
 	}
@@ -214,6 +216,16 @@ public final class FieldInfo extends BinaryInfo implements Comparable {
         return typeSig;
     }
 
+    /**
+     * Gets the type signature including template information of the field.
+     * <b>WARNING:</b> This field may disappear and merged into getType later.
+     * @return the type signature.
+     * @see TypeSignature
+     */
+    public String getSignature() {
+        return signature != null ? signature : typeSig;
+    }
+
     /**
      * Gets the modifier of the field.
      * @return the modifiers.
@@ -228,7 +240,7 @@ public final class FieldInfo extends BinaryInfo implements Comparable {
      * @return true if the field is synthetic.
      */
     public boolean isSynthetic() {
-	return syntheticFlag;
+	return (modifier & ACC_SYNTHETIC) != 0;
     }
 
     /**
@@ -277,7 +289,10 @@ public final class FieldInfo extends BinaryInfo implements Comparable {
     }
 
     public void setSynthetic(boolean flag) {
-	syntheticFlag = flag;
+	if (flag)
+	    modifier |= ACC_SYNTHETIC;
+	else
+	    modifier &= ~ACC_SYNTHETIC;
     }
 
     public void setDeprecated(boolean flag) {

jode/src/net/sf/jode/bytecode/MethodInfo.java

@@ -37,6 +37,9 @@ import java.lang.Comparable;
  * <dt>type</dt><dd>The method's {@link TypeSignature type signature}
  * in bytecode format.</dd>
  *
+ * <dt>signature</dt><dd>The method's {@link TypeSignature type signature}
+ * in bytecode format including template information.</dd>
+ *
  * <dt>modifiers</dt><dd>The modifiers of the field like private, public etc.
  * These are created by or-ing the constants {@link Modifier#PUBLIC},
  * {@link Modifier#PRIVATE}, {@link Modifier#PROTECTED}, 
@@ -69,7 +72,6 @@ public final class MethodInfo extends BinaryInfo implements Comparable {
 
     BasicBlocks basicblocks;
     String[] exceptions;
-    boolean syntheticFlag;
     boolean deprecatedFlag;
     /**
      * The type signature that also contains template information.
@@ -101,7 +103,7 @@ public final class MethodInfo extends BinaryInfo implements Comparable {
 		throw new ClassFormatException
 		    ("Exceptions attribute has wrong length");
 	} else if (name.equals("Synthetic")) {
-	    syntheticFlag = true;
+	    modifier |= ACC_SYNTHETIC;
 	    if (length != 0)
 		throw new ClassFormatException
 		    ("Synthetic attribute has wrong length");
@@ -141,7 +143,7 @@ public final class MethodInfo extends BinaryInfo implements Comparable {
 	    for (int i = 0; i < exceptions.length; i++)
 		gcp.putClassName(exceptions[i]);
 	}
-	if (syntheticFlag)
+	if (isSynthetic())
 	    gcp.putUTF8("Synthetic");
 	if (deprecatedFlag)
 	    gcp.putUTF8("Deprecated");
@@ -154,7 +156,7 @@ public final class MethodInfo extends BinaryInfo implements Comparable {
 	    count++;
 	if (exceptions != null)
 	    count++;
-	if (syntheticFlag)
+	if (isSynthetic())
 	    count++;
 	if (deprecatedFlag)
 	    count++;
@@ -177,7 +179,7 @@ public final class MethodInfo extends BinaryInfo implements Comparable {
 	    for (int i = 0; i < count; i++)
 		output.writeShort(gcp.putClassName(exceptions[i]));
 	}
-	if (syntheticFlag) {
+	if (isSynthetic()) {
 	    output.writeShort(gcp.putUTF8("Synthetic"));
 	    output.writeInt(0);
 	}
@@ -213,6 +215,16 @@ public final class MethodInfo extends BinaryInfo implements Comparable {
         return typeSig;
     }
 
+    /**
+     * Gets the type signature including template information of the method.
+     * <b>WARNING:</b> This field may disappear and merged into getType later.
+     * @return the type signature.
+     * @see TypeSignature
+     */
+    public String getSignature() {
+        return signature != null ? signature : typeSig;
+    }
+
     public int getModifiers() {
         return modifier;
     }
@@ -226,7 +238,7 @@ public final class MethodInfo extends BinaryInfo implements Comparable {
     }
 
     public boolean isSynthetic() {
-	return syntheticFlag;
+	return (modifier & ACC_SYNTHETIC) != 0;
     }
 
     public boolean isDeprecated() {
@@ -254,7 +266,10 @@ public final class MethodInfo extends BinaryInfo implements Comparable {
     }
 
     public void setSynthetic(boolean flag) {
-	syntheticFlag = flag;
+	if (flag)
+	    modifier |= ACC_SYNTHETIC;
+	else
+	    modifier &= ~ACC_SYNTHETIC;
     }
 
     public void setDeprecated(boolean flag) {

jode/src/net/sf/jode/bytecode/TypeSignature.java

@@ -28,7 +28,9 @@ import net.sf.jode.util.UnifyHash;
  * Primitive types have a one letter type signature.  Type signature
  * of classes contains the class name. Type signatures for arrays and
  * methods are recursively build from the type signatures of their
- * elements.  <br>
+ * elements.  <br> Since java 5 there is a new class of type
+ * signatures supporting generics.  These can be accessed with the
+ * getSignature methods of ClassInfo, MethodInfo and FieldInfo.
  *
  * Here are a few examples:
  * <table><tr><th>type signature</th><th>Java type</th></tr>
@@ -49,8 +51,17 @@ import net.sf.jode.util.UnifyHash;
  * <tr><td><code>()I</code></td>
  *     <td> method without arguments 
  *          and <code>int</code> return type.</td></tr>
+ * <tr><td colspan="2"><code>&lt;E:Ljava/lang/Object;&gt;Ljava/lang/Object;Ljava/util/Collection&lt;TE;&gt;;</code></td>
+ *     </tr><tr><td></td>
+ *     <td> generic class over &lt;E extends Object&gt; extending
+ *          Object and implementing Collections&lt;E&gt;</td></tr>
+ * <tr><td colspan="2"><code>&lt;T:Ljava/lang/Object;&gt;([TT;)[TT;</code></td>
+ *     </tr><tr><td></td>
+ *     <td> generic method over &lt;T extends Object&gt; taking an
+ *          array of T as parameters and returning an array of T.</td></tr>
  * </table>
  *
+ *
  * @author Jochen Hoenicke
  */
 public class TypeSignature {
@@ -359,7 +370,7 @@ public class TypeSignature {
     /**
      * Checks whether a given type signature is a valid (not method)
      * type signature.  Throws an exception otherwise.
-     * @param typeSig the type signature.
+     * @param typesig the type signature.
      * @exception NullPointerException if typeSig is null.
      * @exception IllegalArgumentException if typeSig is not a valid
      * type signature or if it's a method type signature.
@@ -380,7 +391,7 @@ public class TypeSignature {
     /**
      * Checks whether a given type signature is a valid method
      * type signature.  Throws an exception otherwise.
-     * @param typeSig the type signature.
+     * @param typesig the type signature.
      * @exception NullPointerException if typeSig is null.
      * @exception IllegalArgumentException if typeSig is not a valid
      * method type signature.

jode/src/net/sf/jode/decompiler/MethodAnalyzer.java

@@ -688,6 +688,10 @@ public class MethodAnalyzer implements Scope, ClassDeclarer {
      * @return true, iff it shouldn't be written to the source code.
      */
     public boolean skipWriting() {
+	if (isSynthetic()
+	    && (minfo.getModifiers() & 0x0040 /*ACC_BRIDGE*/) != 0)
+	    return true;
+	
 	if (synth != null) {
 	    // We don't need this class anymore (hopefully?)
 	    if (synth.getKind() == synth.GETCLASS)

jode/src/net/sf/jode/expr/InvokeOperator.java

@@ -314,6 +314,8 @@ public final class InvokeOperator extends Operator
      * inside the same base class as the caller class, null otherwise.
      */
     private ClassAnalyzer getClassAnalyzer(ClassInfo callee) {
+	if (callee == null)
+	    return null;
 	if ((Options.options & 
 	     (Options.OPTION_ANON | Options.OPTION_INNER)) == 0)
 	    return null;

jode/src/net/sf/jode/flow/FlowBlock.java

@@ -820,7 +820,9 @@ public class FlowBlock {
                 /* The special start marker */
                 continue;
             if (!pred.successors.containsKey(this))
-                throw new InternalError("Inconsistency");
+                throw new InternalError
+		    ("Inconsistency: "+pred.getLabel()+" not in "
+		     +this.getLabel()+".successors");
         }
 
         StructuredBlock last = lastModified;
@@ -829,41 +831,51 @@ public class FlowBlock {
                || last.outer instanceof FinallyBlock)
             last = last.outer;
         if (last.outer != null)
-            throw new InternalError("Inconsistency");
+            throw new InternalError
+		("Inconsistency: last "+lastModified
+		 +" surrounded by unexpected structure");
 
         Iterator iter = successors.entrySet().iterator();
         while (iter.hasNext()) {
 	    Map.Entry entry = (Map.Entry) iter.next();
             FlowBlock dest = (FlowBlock) entry.getKey();
             if (dest.predecessors.contains(this) == (dest == END_OF_METHOD))
-                throw new InternalError("Inconsistency");
+		throw new InternalError
+		    ("Inconsistency: dest "+dest.getLabel()
+		     +" doesn't contain this predecessor");
                 
             Jump jumps = ((SuccessorInfo) entry.getValue()).jumps;
             if (jumps == null)
-                throw new InternalError("Inconsistency");
+		throw new InternalError("Inconsistency: no jumps for "
+					+dest.getLabel());
                 
             for (; jumps != null; jumps = jumps.next) {
                     
                 if (jumps.destination != dest)
-                    throw new InternalError("Inconsistency");
+                    throw new InternalError("Inconsistency:" +jumps
+					    + "doesn't point to "
+					    +dest.getLabel());
                     
                 if (jumps.prev == null
 		    || jumps.prev.flowBlock != this 
 		    || jumps.prev.jump != jumps)
-                    throw new InternalError("Inconsistency");
+                    throw new InternalError("Inconsistency in" +jumps);
                     
             prev_loop:
                 for (StructuredBlock prev = jumps.prev; prev != block;
                      prev = prev.outer) {
                     if (prev.outer == null)
-                        throw new RuntimeException("Inconsistency");
+			throw new InternalError("Inconsistency: " +prev
+						+" not in flowblock");
                     StructuredBlock[] blocks = prev.outer.getSubBlocks();
                     int i;
                     for (i=0; i<blocks.length; i++)
                         if (blocks[i] == prev)
                             continue prev_loop;
                         
-                    throw new InternalError("Inconsistency");
+		    throw new InternalError("Inconsistency: " +prev
+					    +" not in its outer block "
+					    +prev.outer);
                 }
             }
         }
@@ -1357,18 +1369,45 @@ public class FlowBlock {
                 changed |= analyzeSwitch(start, end);
             } 
 
-
-            if (doT1(start, end)) {
-
-                if ((GlobalOptions.debuggingFlags & GlobalOptions.DEBUG_FLOW) != 0)
-                    GlobalOptions.err.println("after T1: "+this);
-
-                /* T1 transformation succeeded.  This may
-                 * make another T2 analysis in the previous
-                 * block possible.  
-                 */
+	    /* Do T1 analysis when there is a loop, but only if:
+	     *  - the loop has only one exit (plus returns)
+	     *  - or the successor block doesn't belong to the loop.
+	     *
+	     * The reason for the extra checks are loops like
+	     *
+	     *   while (x)
+	     *     ...
+	     *     if (y)
+	     *       ...
+	     *       return
+	     *
+	     * which would otherwise be translated to:
+	     *
+	     * outer: do {
+	     *   do {
+	     *     if (!x) break outer;
+	     *     ...
+	     *   } while(!y)
+	     *   ...
+	     *   return
+	     * } while(false)
+	     */
+	    if (successors.containsKey(this)
+		&& (!successors.containsKey(nextByCodeOrder)
+		    || successors.size() == 2
+		    || (successors.size() == 3
+			&& successors.containsKey(END_OF_METHOD)))
+		&& doT1(start, end)) {
+		
+		if ((GlobalOptions.debuggingFlags & GlobalOptions.DEBUG_FLOW) != 0)
+		    GlobalOptions.err.println("after T1: "+this);
+		
+		/* T1 transformation succeeded.  This may
+		 * make another T2 analysis in the previous
+		 * block possible.  
+		 */
 		return true;
-            }
+	    }
 
             FlowBlock succ = getSuccessor(start, end);
             while (true) {
@@ -1443,7 +1482,7 @@ public class FlowBlock {
      * The switch analyzation.  This calls doSwitchT2 and doT1 on apropriate
      * regions.  Only blocks whose block number lies in the given block number
      * range are considered and it is taken care of, that the switch
-     * is never leaved. <p>
+     * is never left. <p>
      * The current flow block must contain the switch block as lastModified.
      * @param start the start of the block number range.
      * @param end the end of the block number range.