Program: 99179
Project: 99179
Buggy source:
private void itemDialog(final ListView v,final String item,final String what){
  AlertDialog.Builder builder=new AlertDialog.Builder(this);
  builder.setMessage("String_Node_Str" + item + "String_Node_Str"+ what).setTitle("String_Node_Str").setCancelable(true).setPositiveButton("String_Node_Str" + what,new DialogInterface.OnClickListener(){
    public void onClick(    DialogInterface dialog,    int id){
      if (what.contains("String_Node_Str")) {
        int num;
        if (alitems.containsKey(item) && alitems.get(item).intValue() > 1)         num=alitems.get(item).intValue();
 else         num=alitems.remove(item).intValue();
        if (albackpackItems.containsKey(item)) {
          if (alitems.containsKey(item) && alitems.get(item).intValue() > 1) {
            alitems.put(item,alitems.remove(item).intValue() - 1);
          }
          albackpackItems.put(item,albackpackItems.get(item).intValue() + 1);
        }
 else         albackpackItems.put(item,1);
        v.invalidate();
        setUpListView(backpackListView,albackpackItems,"String_Node_Str");
        setUpListView(storageListView,alitems,"String_Node_Str");
      }
 else {
        int num;
        if (albackpackItems.containsKey(item) && albackpackItems.get(item).intValue() > 1)         num=albackpackItems.get(item).intValue();
 else         num=albackpackItems.remove(item).intValue();
        if (alitems.containsKey(item)) {
          if (albackpackItems.containsKey(item) && albackpackItems.get(item).intValue() > 1) {
            albackpackItems.put(item,albackpackItems.remove(item).intValue() - 1);
          }
          alitems.put(item,alitems.get(item).intValue() + 1);
        }
 else         alitems.put(item,1);
        setUpListView(backpackListView,albackpackItems,"String_Node_Str");
        setUpListView(storageListView,alitems,"String_Node_Str");
      }
    }
  }
).setNegativeButton("String_Node_Str",new DialogInterface.OnClickListener(){
    public void onClick(    DialogInterface dialog,    int id){
      dialog.cancel();
    }
  }
);
  AlertDialog alert=builder.create();
  alert.show();
}

Fixed version (ground truth):
private void itemDialog(final ListView v,final String item,final String what){
  AlertDialog.Builder builder=new AlertDialog.Builder(this);
  builder.setMessage("String_Node_Str" + item + "String_Node_Str"+ what).setTitle("String_Node_Str").setCancelable(true).setPositiveButton("String_Node_Str" + what,new DialogInterface.OnClickListener(){
    public void onClick(    DialogInterface dialog,    int id){
      if (what.contains("String_Node_Str")) {
        if (alitems.containsKey(item) && alitems.get(item).intValue() > 1) {
          alitems.put(item,alitems.remove(item).intValue() - 1);
        }
 else {
          alitems.remove(item);
        }
        if (albackpackItems.containsKey(item))         albackpackItems.put(item,albackpackItems.get(item).intValue() + 1);
 else         albackpackItems.put(item,1);
        v.invalidate();
        setUpListView(backpackListView,albackpackItems,"String_Node_Str");
        setUpListView(storageListView,alitems,"String_Node_Str");
      }
 else {
        if (albackpackItems.containsKey(item) && albackpackItems.get(item).intValue() > 1) {
          albackpackItems.put(item,albackpackItems.remove(item).intValue() - 1);
        }
 else {
          albackpackItems.remove(item);
        }
        if (alitems.containsKey(item))         alitems.put(item,alitems.get(item).intValue() + 1);
 else         alitems.put(item,1);
        setUpListView(backpackListView,albackpackItems,"String_Node_Str");
        setUpListView(storageListView,alitems,"String_Node_Str");
      }
    }
  }
).setNegativeButton("String_Node_Str",new DialogInterface.OnClickListener(){
    public void onClick(    DialogInterface dialog,    int id){
      dialog.cancel();
    }
  }
);
  AlertDialog alert=builder.create();
  alert.show();
}