Program: 146880
Project: 146880
Buggy source:
private TreeElement cache(){
synchronized (cache) {
    if (cache.hasEntry(recordId)) {
      return cache.retrieve(recordId);
    }
    if (recordId == -1) {
      Vector<Integer> ids=storage.getIDsForValue("String_Node_Str",caseId);
      recordId=ids.elementAt(0).intValue();
    }
    TreeElement cacheBuilder=new TreeElement("String_Node_Str".intern());
    Case c=(Case)storage.read(recordId);
    caseId=c.getCaseId();
    cacheBuilder=new TreeElement("String_Node_Str".intern());
    cacheBuilder.setMult(this.mult);
    cacheBuilder.setAttribute(null,"String_Node_Str".intern(),c.getCaseId());
    cacheBuilder.setAttribute(null,"String_Node_Str".intern(),c.getTypeId());
    cacheBuilder.setAttribute(null,"String_Node_Str".intern(),c.isClosed() ? "String_Node_Str".intern() : "String_Node_Str".intern());
    TreeElement scratch=new TreeElement("String_Node_Str".intern());
    scratch.setAnswer(new StringData(c.getName()));
    cacheBuilder.addChild(scratch);
    scratch=new TreeElement("String_Node_Str".intern());
    scratch.setAnswer(new DateData(c.getDateOpened()));
    cacheBuilder.addChild(scratch);
    for (Enumeration en=c.getProperties().keys(); en.hasMoreElements(); ) {
      String key=(String)en.nextElement();
      scratch=new TreeElement(key.intern());
      Object temp=c.getProperty(key);
      if (temp instanceof String) {
        scratch.setValue(new UncastData((String)temp));
      }
 else {
        scratch.setValue(PreloadUtils.wrapIndeterminedObject(temp));
      }
      cacheBuilder.addChild(scratch);
    }
    final boolean[] done=new boolean[]{false};
    TreeElement index=new TreeElement("String_Node_Str".intern()){
      public TreeElement getChild(      String name,      int multiplicity){
        TreeElement child=super.getChild(name.intern(),multiplicity);
        if (done[0] == false) {
          return child;
        }
        if (multiplicity >= 0 && child == null) {
          TreeElement emptyNode=new TreeElement(name.intern());
          this.addChild(emptyNode);
          emptyNode.setParent(this);
          return emptyNode;
        }
        return child;
      }
    }
;
    Vector<CaseIndex> indices=c.getIndices();
    for (    CaseIndex i : indices) {
      scratch=new TreeElement(i.getName());
      scratch.setAttribute(null,"String_Node_Str".intern(),i.getTargetType().intern());
      scratch.setValue(new UncastData(i.getTarget()));
      index.addChild(scratch);
    }
    cacheBuilder.addChild(index);
    cacheBuilder.setParent(this.parent);
    done[0]=true;
    cache.register(recordId,cacheBuilder);
    return cacheBuilder;
  }
}

Fixed version (ground truth):
private TreeElement cache(){
synchronized (cache) {
    if (cache.hasEntry(recordId)) {
      return cache.retrieve(recordId);
    }
    if (recordId == -1) {
      Vector<Integer> ids=storage.getIDsForValue("String_Node_Str",caseId);
      recordId=ids.elementAt(0).intValue();
    }
    TreeElement cacheBuilder=new TreeElement("String_Node_Str".intern());
    Case c=(Case)storage.read(recordId);
    caseId=c.getCaseId();
    cacheBuilder=new TreeElement("String_Node_Str".intern());
    cacheBuilder.setMult(this.mult);
    cacheBuilder.setAttribute(null,"String_Node_Str".intern(),c.getCaseId());
    cacheBuilder.setAttribute(null,"String_Node_Str".intern(),c.getTypeId());
    cacheBuilder.setAttribute(null,"String_Node_Str".intern(),c.isClosed() ? "String_Node_Str".intern() : "String_Node_Str".intern());
    cacheBuilder.setAttribute(null,"String_Node_Str".intern(),c.getUserId());
    TreeElement scratch=new TreeElement("String_Node_Str".intern());
    scratch.setAnswer(new StringData(c.getName()));
    cacheBuilder.addChild(scratch);
    scratch=new TreeElement("String_Node_Str".intern());
    scratch.setAnswer(new DateData(c.getDateOpened()));
    cacheBuilder.addChild(scratch);
    for (Enumeration en=c.getProperties().keys(); en.hasMoreElements(); ) {
      String key=(String)en.nextElement();
      scratch=new TreeElement(key.intern());
      Object temp=c.getProperty(key);
      if (temp instanceof String) {
        scratch.setValue(new UncastData((String)temp));
      }
 else {
        scratch.setValue(PreloadUtils.wrapIndeterminedObject(temp));
      }
      cacheBuilder.addChild(scratch);
    }
    final boolean[] done=new boolean[]{false};
    TreeElement index=new TreeElement("String_Node_Str".intern()){
      public TreeElement getChild(      String name,      int multiplicity){
        TreeElement child=super.getChild(name.intern(),multiplicity);
        if (done[0] == false) {
          return child;
        }
        if (multiplicity >= 0 && child == null) {
          TreeElement emptyNode=new TreeElement(name.intern());
          this.addChild(emptyNode);
          emptyNode.setParent(this);
          return emptyNode;
        }
        return child;
      }
    }
;
    Vector<CaseIndex> indices=c.getIndices();
    for (    CaseIndex i : indices) {
      scratch=new TreeElement(i.getName());
      scratch.setAttribute(null,"String_Node_Str".intern(),i.getTargetType().intern());
      scratch.setValue(new UncastData(i.getTarget()));
      index.addChild(scratch);
    }
    cacheBuilder.addChild(index);
    cacheBuilder.setParent(this.parent);
    done[0]=true;
    cache.register(recordId,cacheBuilder);
    return cacheBuilder;
  }
}