final PTObject unRegisterObject = unRegisterObject(instruction.getObjectID());
if (unRegisterObject == null) {
log.info("Cannot GC an garbaged object #" + instruction.getObjectID());
return;
}
unRegisterObject.gc(this);
} else if (TYPE.KEY_.UPDATE.equals(type)) {
final PTObject ptObject = objectByID.get(instruction.getObjectID());
if (ptObject == null) {
log.info("Cannot update an garbaged object #" + instruction.getObjectID());
return;