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http://issues.apache.org/bugzilla/show_bug.cgi?id=43795

           Summary: Deleting all instructions of a list shows wrong
                    behaviour
           Product: BCEL
           Version: unspecified
          Platform: Other
        OS/Version: other
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Main
        AssignedTo: bcel-dev@jakarta.apache.org
        ReportedBy: [EMAIL PROTECTED]


Deleting all instructions (i.e. everything from start to end) in a list shows 
the following behaviour:

 The length of the list is not 0 afterwards.
 Only the handle of the first instruction is disposed.

To fix the problem, apply the following patch:

Index: InstructionList.java
===================================================================
--- InstructionList.java        (revision 592025)
+++ InstructionList.java        (working copy)
@@ -677,8 +677,9 @@
     private void remove( InstructionHandle prev, InstructionHandle next )
             throws TargetLostException {
         InstructionHandle first, last; // First and last deleted instruction
-        if ((prev == null) && (next == null)) { // singleton list
-            first = last = start;
+        if ((prev == null) && (next == null)) { 
+            first = start;
+                       last = end;
             start = end = null;
         } else {
             if (prev == null) { // At start of list

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