[jboss-dev-forums] [Design of EJB 3.0] - Re: EJBTHREE-1423 Test case for @RemoteBinding

[jaikiran]

Andrew,

I tested this with jboss-metadata 1.0.0.Beta36. My test cases which work on Remote beans are failing. The ones working with Local beans pass. Here's the exception, i see for all my remote bean test cases:

  | testRemoteBindingForSlsb(org.jboss.ejb3.test.proxy.binding.unit.JNDIBindingTestCase)  Time elapsed: 1.016 sec  <<< ERROR!
  | javax.naming.NamingException: Could not dereference object [Root exception is java.lang.RuntimeException: Could not create the EJB3 Business Proxy implementing "org.jboss.ejb3.test.proxy.common.ejb.slsb.MyStatelessRemote" for MyStatelessBeanWithBindings]
  | 	at org.jnp.interfaces.NamingContext.getObjectInstanceWrapFailure(NamingContext.java:1337)
  | 	at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:765)
  | 	at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:629)
  | 	at javax.naming.InitialContext.lookup(InitialContext.java:351)
  | 	at org.jboss.ejb3.test.proxy.binding.unit.JNDIBindingTestCase.testRemoteBindingForSlsb(JNDIBindingTestCase.java:184)
  | 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  | 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
  | 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
  | 	at java.lang.reflect.Method.invoke(Method.java:585)
  | 	at org.junit.internal.runners.TestMethod.invoke(TestMethod.java:59)
  | 	at org.junit.internal.runners.MethodRoadie.runTestMethod(MethodRoadie.java:98)
  | 	at org.junit.internal.runners.MethodRoadie$2.run(MethodRoadie.java:79)
  | 	at org.junit.internal.runners.MethodRoadie.runBeforesThenTestThenAfters(MethodRoadie.java:87)
  | 	at org.junit.internal.runners.MethodRoadie.runTest(MethodRoadie.java:77)
  | 	at org.junit.internal.runners.MethodRoadie.run(MethodRoadie.java:42)
  | 	at org.junit.internal.runners.JUnit4ClassRunner.invokeTestMethod(JUnit4ClassRunner.java:88)
  | 	at org.junit.internal.runners.JUnit4ClassRunner.runMethods(JUnit4ClassRunner.java:51)
  | 	at org.junit.internal.runners.JUnit4ClassRunner$1.run(JUnit4ClassRunner.java:44)
  | 	at org.junit.internal.runners.ClassRoadie.runUnprotected(ClassRoadie.java:27)
  | 	at org.junit.internal.runners.ClassRoadie.runProtected(ClassRoadie.java:37)
  | 	at org.junit.internal.runners.JUnit4ClassRunner.run(JUnit4ClassRunner.java:42)
  | 	at org.apache.maven.surefire.junit4.JUnit4TestSet.execute(JUnit4TestSet.java:62)
  | 	at org.apache.maven.surefire.suite.AbstractDirectoryTestSuite.executeTestSet(AbstractDirectoryTestSuite.java:140)
  | 	at org.apache.maven.surefire.suite.AbstractDirectoryTestSuite.execute(AbstractDirectoryTestSuite.java:165)
  | 	at org.apache.maven.surefire.Surefire.run(Surefire.java:107)
  | 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  | 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
  | 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
  | 	at java.lang.reflect.Method.invoke(Method.java:585)
  | 	at org.apache.maven.surefire.booter.SurefireBooter.runSuitesInProcess(SurefireBooter.java:289)
  | 	at org.apache.maven.surefire.booter.SurefireBooter.main(SurefireBooter.java:993)
  | Caused by: java.lang.RuntimeException: Could not create the EJB3 Business Proxy implementing "org.jboss.ejb3.test.proxy.common.ejb.slsb.MyStatelessRemote" for MyStatelessBeanWithBindings
  | 	at org.jboss.ejb3.proxy.factory.session.SessionProxyFactoryBase.createProxyBusiness(SessionProxyFactoryBase.java:235)
  | 	at org.jboss.ejb3.proxy.objectfactory.session.SessionProxyObjectFactory.createProxy(SessionProxyObjectFactory.java:129)
  | 	at org.jboss.ejb3.proxy.objectfactory.session.stateless.StatelessSessionProxyObjectFactory.getProxy(StatelessSessionProxyObjectFactory.java:79)
  | 	at org.jboss.ejb3.proxy.objectfactory.ProxyObjectFactory.getObjectInstance(ProxyObjectFactory.java:161)
  | 	at javax.naming.spi.NamingManager.getObjectInstance(NamingManager.java:304)
  | 	at org.jnp.interfaces.NamingContext.getObjectInstance(NamingContext.java:1312)
  | 	at org.jnp.interfaces.NamingContext.getObjectInstanceWrapFailure(NamingContext.java:1329)
  | 	... 30 more
  | Caused by: java.lang.AssertionError: Could not find Advice Stack with name: StatelessSessionClientInterceptors
  | 	at org.jboss.ejb3.proxy.factory.ProxyFactoryBase.getInterceptors(ProxyFactoryBase.java:185)
  | 	at org.jboss.ejb3.proxy.factory.session.stateless.StatelessSessionRemoteProxyFactory.createInvocationHandler(StatelessSessionRemoteProxyFactory.java:147)
  | 	at org.jboss.ejb3.proxy.factory.session.SessionProxyFactoryBase.createProxyBusiness(SessionProxyFactoryBase.java:227)
  | 	... 36 more

And this exception happens when i lookup the bean using the remote jndi name:


  | 
  |  @Test
  |    public void testRemoteBindingForSlsb() throws Throwable
  |    {
  |       // create the bean
  |       this.sessionContainer = Utils.createSlsb(MyStatelessBeanWithBindings.class);
  | 
  |       // bind it to JNDI
  |       Ejb3RegistrarLocator.locateRegistrar().bind(sessionContainer.getName(), sessionContainer);
  | 
  |       List<RemoteBindingMetaData> remoteBindingsMetadata = sessionContainer.getMetaData().getRemoteBindings();
  | 
  |       assertNotNull("No RemoteBindingMetadata available", remoteBindingsMetadata);
  |       // make sure that the remotebinding metadata list has 1 @RemoteBinding information
  |       assertEquals("RemoteBindingMetadata does not have any RemoteBinding information available", remoteBindingsMetadata.size(), 1);
  | 
  |       // Ensure that the RemoteBindingMetaData is created properly with the specified jndiBinding name.
  |       Iterator<RemoteBindingMetaData> remoteBindingsMetadataIterator = remoteBindingsMetadata.iterator();
  |       RemoteBindingMetaData remoteBindingMetadata = remoteBindingsMetadataIterator.next();
  | 
  |       assertEquals("RemoteBinding JNDI name does not match " + MyStatelessBeanWithBindings.REMOTE_JNDI_NAME, MyStatelessBeanWithBindings.REMOTE_JNDI_NAME, remoteBindingMetadata
  |             .getJndiName());
  | 
  |       // Now ensure that the RemoteBindingMetaData is used for binding the 
  |       // remote interface of the bean.
  |       Context ctx = new InitialContext();
  |       String rJndiName = remoteBindingMetadata.getJndiName();
  | 
  |       Object remoteBean = ctx.lookup(rJndiName); // fails here with exception
  | 
  |       assertNotNull("Remote bean returned from JNDI lookup is null", remoteBean);
  |       assertTrue("Remote bean returned from JNDI lookup is NOT an instance of " + MyStatelessRemote.class, (remoteBean instanceof MyStatelessRemote));
  | 
  |    }

Looks like there's some change related to EJBTHREE-1345 as part of which now atleast one interceptor is mandatory for remote beans?

Let me know, if you want me to update the JIRA (EJBTHREE-1423) with this updated test case. Actually, there hasn't been much changes in these test cases.

A couple of related questions:

1) What exactly are these client interceptors that is being checked for?
2) Why do we mandate these interceptors only for remote proxy and not for local proxy?


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