code: public void threadAccepted(IVdmThread thread, boolean first)
  	{
  		if (first)
  		{
  			DebugEventHelper.fireExtendedEvent(this, ExtendedDebugEventDetails.BEFORE_CODE_LOADED);
  			initialized = true;
  			fireTargetInitialized();
  		}
  	}
docs: IDbgpThreadManagerListener