public Map<String,Object> forThread(Thread t){
  return new HashMap<String,Object>(PER_THREAD_CONTEXTS.getUnchecked(t));
}

public Map < String , Object > forThread ( Thread t ) { return new HashMap < String , Object > ( PER_THREAD_CONTEXTS . getUnchecked ( t ) ) ; }
retrieves a copy of the thread context for the given thread
