code: private void setIsAsyncDeletionThreadStartable(boolean isStartable)
      {
          if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
              SibTr.entry(tc, "setIsAsyncDeletionThreadStartable", new Boolean(isStartable));
  
          synchronized (deletionThreadLock)
          {
              _isAsyncDeletionThreadStartable = isStartable;
          }
  
          if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
              SibTr.exit(tc, "setIsAsyncDeletionThreadStartable");
      }
docs: Indicates whether the async deletion thread should be startable or not.
  
  @param isStartable