public Object invoke(Invocation mi) throws Exception 
{
      // Get context
      InstancePool pool = container.getInstancePool();
      StatelessSessionEnterpriseContext ctx = null;
      try
      {
         ctx = (StatelessSessionEnterpriseContext) pool.get();
      }
      catch (EJBException e)
      {
         throw e;
      }
      catch (RemoteException e)
      {
         throw e;
      }
      catch (Exception e)
      {
         InvocationType type = mi.getType();
         boolean isLocal = (type == InvocationType.LOCAL || type == InvocationType.LOCALHOME);
         if (isLocal)
            throw new EJBException("Unable to get an instance from the pool", e);
         else
            throw new RemoteException("Unable to get an intance from the pool", e);
      }
      // Set the current security information
      ctx.setPrincipal(mi.getPrincipal());
      // Set the JACC EnterpriseBean PolicyContextHandler data
      EnterpriseBeanPolicyContextHandler.setEnterpriseBean(ctx.getInstance());
      // Use this context
      mi.setEnterpriseContext(ctx);
      // JAXRPC/JAXWS message context
      Object msgContext = mi.getValue(InvocationKey.SOAP_MESSAGE_CONTEXT);
      // Timer invocation
      if (ejbTimeout.equals(mi.getMethod()))
      {
         AllowedOperationsAssociation.pushInMethodFlag(IN_EJB_TIMEOUT);
      }
      // Service Endpoint invocation
      else if (msgContext != null)
      {
         if (msgContext instanceof javax.xml.rpc.handler.MessageContext)
            ctx.setMessageContext((javax.xml.rpc.handler.MessageContext)msgContext);
         AllowedOperationsAssociation.pushInMethodFlag(IN_SERVICE_ENDPOINT_METHOD);
      }
      // Business Method Invocation
      else
      {
         AllowedOperationsAssociation.pushInMethodFlag(IN_BUSINESS_METHOD);
      }
      // There is no need for synchronization since the instance is always fresh also there should
      // never be a tx associated with the instance.
      try
      {
         Object obj = getNext().invoke(mi);
         return obj;
      }
      catch (RuntimeException e) // Instance will be GC'ed at MI return
      {
         mi.setEnterpriseContext(null);
         throw e;
      }
      catch (RemoteException e) // Instance will be GC'ed at MI return
      {
         mi.setEnterpriseContext(null);
         throw e;
      }
      catch (Error e) // Instance will be GC'ed at MI return
      {
         mi.setEnterpriseContext(null);
         throw e;
      }
      finally
      {
         AllowedOperationsAssociation.popInMethodFlag();
         EnterpriseBeanPolicyContextHandler.setEnterpriseBean(null);
         // Return context
         if (mi.getEnterpriseContext() != null)
         {
            pool.free(((EnterpriseContext) mi.getEnterpriseContext()));
         }
         else
         {
            pool.discard(ctx);
         }
      }
}

 public Object invokeHome(Invocation mi) throws Exception 
{
      InstancePool pool = container.getInstancePool();
      StatelessSessionEnterpriseContext ctx = null;
      try
      {
         // Acquire an instance in case the ejbCreate throws a CreateException  
         ctx = (StatelessSessionEnterpriseContext) pool.get();
         mi.setEnterpriseContext(ctx);
         // Dispatch the method to the container
         return getNext().invokeHome(mi);
      }
      finally
      {
         mi.setEnterpriseContext(null);
         // If an instance was created, return it to the pool
         if( ctx != null )
            pool.free(ctx);
      }
}

 public  void setContainer(Container container) 
{
      try
      {
         ejbTimeout = TimedObject.class.getMethod("ejbTimeout", new Class[]{Timer.class});
      }
      catch (Exception e)
      {
         throw new ExceptionInInitializerError(e);
      }
      super.setContainer(container);
      this.container = (StatelessSessionContainer)container;
}