Program: 9456
Project: 9456
Buggy source:
public boolean weave(){
  if (clazz.isWoven() && !clazz.isReweavable()) {
    world.showMessage(IMessage.ERROR,"String_Node_Str" + clazz.getType().getName() + "String_Node_Str",ty.getSourceLocation(),null);
    return false;
  }
  Set aspectsAffectingType=null;
  if (inReweavableMode)   aspectsAffectingType=new HashSet();
  boolean isChanged=false;
  if (clazz.getType().isAspect())   isChanged=true;
  for (Iterator i=typeMungers.iterator(); i.hasNext(); ) {
    Object o=i.next();
    if (!(o instanceof BcelTypeMunger)) {
      continue;
    }
    BcelTypeMunger munger=(BcelTypeMunger)o;
    boolean typeMungerAffectedType=munger.munge(this);
    if (typeMungerAffectedType) {
      isChanged=true;
      if (inReweavableMode)       aspectsAffectingType.add(munger.getAspectType().getName());
    }
  }
  addedSuperInitializersAsList=new ArrayList(addedSuperInitializers.values());
  addedSuperInitializersAsList=PartialOrder.sort(addedSuperInitializersAsList);
  if (addedSuperInitializersAsList == null) {
    throw new BCException("String_Node_Str");
  }
  LazyMethodGen staticInit=clazz.getStaticInitializer();
  staticInit.getBody().insert(genInitInstructions(addedClassInitializers,true));
  List methodGens=new ArrayList(clazz.getMethodGens());
  for (Iterator i=methodGens.iterator(); i.hasNext(); ) {
    LazyMethodGen mg=(LazyMethodGen)i.next();
    if (!mg.hasBody())     continue;
    boolean shadowMungerMatched=match(mg);
    if (shadowMungerMatched) {
      if (inReweavableMode)       aspectsAffectingType.addAll(findAspectsForMungers(mg));
      isChanged=true;
    }
  }
  if (!isChanged)   return false;
  for (Iterator i=methodGens.iterator(); i.hasNext(); ) {
    LazyMethodGen mg=(LazyMethodGen)i.next();
    if (!mg.hasBody())     continue;
    implement(mg);
  }
  if (!initializationShadows.isEmpty()) {
    inlineSelfConstructors(methodGens);
    positionAndImplement(initializationShadows);
  }
  if (isChanged) {
    clazz.getOrCreateWeaverStateInfo();
    weaveInAddedMethods();
  }
  if (inReweavableMode) {
    WeaverStateInfo wsi=clazz.getOrCreateWeaverStateInfo();
    wsi.addAspectsAffectingType(aspectsAffectingType);
    wsi.setUnwovenClassFileData(ty.getJavaClass().getBytes());
    wsi.setReweavable(true,compressReweavableAttributes);
  }
 else {
    clazz.getOrCreateWeaverStateInfo().setReweavable(false,false);
  }
  return isChanged;
}

Fixed version (ground truth):
public boolean weave(){
  if (clazz.isWoven() && !clazz.isReweavable()) {
    world.showMessage(IMessage.ERROR,"String_Node_Str" + clazz.getType().getName() + "String_Node_Str",ty.getSourceLocation(),null);
    return false;
  }
  Set aspectsAffectingType=null;
  if (inReweavableMode)   aspectsAffectingType=new HashSet();
  boolean isChanged=false;
  if (clazz.getType().isAspect())   isChanged=true;
  for (Iterator i=typeMungers.iterator(); i.hasNext(); ) {
    Object o=i.next();
    if (!(o instanceof BcelTypeMunger)) {
      continue;
    }
    BcelTypeMunger munger=(BcelTypeMunger)o;
    boolean typeMungerAffectedType=munger.munge(this);
    if (typeMungerAffectedType) {
      isChanged=true;
      if (inReweavableMode)       aspectsAffectingType.add(munger.getAspectType().getName());
    }
  }
  addedSuperInitializersAsList=new ArrayList(addedSuperInitializers.values());
  addedSuperInitializersAsList=PartialOrder.sort(addedSuperInitializersAsList);
  if (addedSuperInitializersAsList == null) {
    throw new BCException("String_Node_Str");
  }
  LazyMethodGen staticInit=clazz.getStaticInitializer();
  staticInit.getBody().insert(genInitInstructions(addedClassInitializers,true));
  List methodGens=new ArrayList(clazz.getMethodGens());
  for (Iterator i=methodGens.iterator(); i.hasNext(); ) {
    LazyMethodGen mg=(LazyMethodGen)i.next();
    if (!mg.hasBody())     continue;
    boolean shadowMungerMatched=match(mg);
    if (shadowMungerMatched) {
      if (inReweavableMode)       aspectsAffectingType.addAll(findAspectsForMungers(mg));
      isChanged=true;
    }
  }
  if (!isChanged)   return false;
  for (Iterator i=methodGens.iterator(); i.hasNext(); ) {
    LazyMethodGen mg=(LazyMethodGen)i.next();
    if (!mg.hasBody())     continue;
    implement(mg);
  }
  if (!initializationShadows.isEmpty()) {
    while (inlineSelfConstructors(methodGens))     ;
    positionAndImplement(initializationShadows);
  }
  if (isChanged) {
    clazz.getOrCreateWeaverStateInfo();
    weaveInAddedMethods();
  }
  if (inReweavableMode) {
    WeaverStateInfo wsi=clazz.getOrCreateWeaverStateInfo();
    wsi.addAspectsAffectingType(aspectsAffectingType);
    wsi.setUnwovenClassFileData(ty.getJavaClass().getBytes());
    wsi.setReweavable(true,compressReweavableAttributes);
  }
 else {
    clazz.getOrCreateWeaverStateInfo().setReweavable(false,false);
  }
  return isChanged;
}