fixed JIRA-227

3 files changed, 7 insertions, 2 deletions

diff --git a/src/main/javassist/bytecode/CodeIterator.java b/src/main/javassist/bytecode/CodeIterator.java
index a1d882e0..e1edcbb7 100644
--- a/src/main/javassist/bytecode/CodeIterator.java
+++ b/src/main/javassist/bytecode/CodeIterator.java
@@ -127,6 +127,11 @@ public class CodeIterator implements Opcode {
     public int byteAt(int index) { return bytecode[index] & 0xff; }
 
     /**
+     * Returns the signed 8bit value at the given index.
+     */
+    public int signedByteAt(int index) { return bytecode[index]; }
+
+    /**
      * Writes an 8bit value at the given index.
      */
     public void writeByte(int value, int index) {
diff --git a/src/main/javassist/bytecode/InstructionPrinter.java b/src/main/javassist/bytecode/InstructionPrinter.java
index 12f74d5b..93182baa 100644
--- a/src/main/javassist/bytecode/InstructionPrinter.java
+++ b/src/main/javassist/bytecode/InstructionPrinter.java
@@ -116,7 +116,7 @@ public class InstructionPrinter implements Opcode {
             case IF_ICMPNE:
                 return opstring + " " + (iter.s16bitAt(pos + 1) + pos);
             case IINC:
-                return opstring + " " + iter.byteAt(pos + 1);
+                return opstring + " " + iter.byteAt(pos + 1) + ", " + iter.signedByteAt(pos + 2);
             case GOTO:
             case JSR:
                 return opstring + " " + (iter.s16bitAt(pos + 1) + pos);
diff --git a/src/main/javassist/tools/framedump.java b/src/main/javassist/tools/framedump.java
index 95329111..43a2beb6 100644
--- a/src/main/javassist/tools/framedump.java
+++ b/src/main/javassist/tools/framedump.java
@@ -36,7 +36,7 @@ public class framedump {
      */
     public static void main(String[] args) throws Exception {
         if (args.length != 1) {
-            System.err.println("Usage: java javassist.tools.framedump <class file name>");
+            System.err.println("Usage: java javassist.tools.framedump <fully-qualified class name>");
             return;
         }