7:25 a.m.
Using JBoss Portal 2.6.4 with JDK1.5.0
It seems to me that RMI class loading does not work with my configuration
I gave a security policy to the jboss to allow for RMI class loading.
And i gave the loaderport parameter to the DefaultEjb3Connector as described here
[URL]http://www.jboss.com/index.html?module=bb&op=viewtopic&t=1269...]
| <mbean code="org.jboss.remoting.transport.Connector"
|
name="jboss.remoting:type=Connector,name=DefaultEjb3Connector,handler=ejb3">
| <depends>jboss.aop:service=AspectDeployer</depends>
| <!--attribute
name="InvokerLocator">socket://${jboss.bind.address}:3873/?loaderport=4873</attribute-->
|
| <attribute name="Configuration">
| <config>
| <invoker transport="socket">
| <attribute
name="serverBindAddress">${jboss.bind.address}</attribute>
| <attribute name="serverBindPort">3873</attribute>
| <attribute name="numAcceptThreads">1</attribute>
| <attribute name="maxPoolSize">300</attribute>
| <attribute name="clientMaxPoolSize"
isParam="true">50</attribute>
| <attribute name="timeout"
isParam="true">60000</attribute>
| <attribute name="loaderport"
isParam="true">4873</attribute>
| <attribute name="serializationtype"
isParam="true">jboss</attribute>
| <attribute name="byvalue"
isParam="true">true</attribute>
| <attribute name="force_remote"
isParam="true">true</attribute>
| </invoker>
| <handlers>
| <handler
subsystem="AOP">org.jboss.aspects.remoting.AOPRemotingInvocationHandler</handler>
| </handlers>
| </config>
|
| </attribute>
| </mbean>
|
I get a ClassNotFoundException for the implementing ejb class of the method parameter, but
I expected the class to be loaded via RMI loader (via WebService on localhost:8083). Is
there something else that I need to configure?
| Caused by: java.lang.ClassNotFoundException:
palmyra.baustein.geschaeftsverwaltung.antrag.ProtokollVBeanEjb
| at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
| at java.security.AccessController.doPrivileged(Native Method)
| at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
| at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
| at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
| at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
| at java.lang.Class.forName0(Native Method)
| at java.lang.Class.forName(Class.java:242)
| at sun.rmi.server.LoaderHandler.loadClass(LoaderHandler.java:430)
| at sun.rmi.server.LoaderHandler.loadClass(LoaderHandler.java:165)
| at java.rmi.server.RMIClassLoader$2.loadClass(RMIClassLoader.java:620)
| at
org.jboss.system.JBossRMIClassLoader.loadClass(JBossRMIClassLoader.java:91)
| at java.rmi.server.RMIClassLoader.loadClass(RMIClassLoader.java:247)
| at
sun.rmi.server.MarshalInputStream.resolveClass(MarshalInputStream.java:197)
| at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1544)
| at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1466)
| at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1699)
| at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1305)
| at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1634)
| at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1299)
| at java.io.ObjectInputStream.readObject(ObjectInputStream.java:348)
| at java.rmi.MarshalledObject.get(MarshalledObject.java:135)
| at
org.jboss.aop.joinpoint.MethodInvocation.getArguments(MethodInvocation.java:267)
|
Let me explain the overall situation.
Consider this: one ejb A gets another ejb B injected via @EJB annotation.
ejb A is thus owning a proxy to ejb B.
the respective classes are deployed in two ears that are isolated ie. have their own class
loader repositories declared in jboss-app.xml
In order to call methods on B, the ear with ejb A contains the ejb interface and parameter
classes of ejb B.
Now while there is no problem ejb A calling methods on ejb B, B cannot call on A vice
versa, because the ear of ejb B does not contain the classes of ejb A.
But I want ejb B to be able to callback its owning ejb A. I therefore transmitted the
proxy of ejb A to ejb B.
class EjbB {
| public void setOwner(MyCommonInterface bean) { .. }
|
| class MyInterceptor{
| @Resource
| SessionContext sessionContext;
| void propagateOwner() {
| iface = sessionContext.getInvokedBusinessInterface();
| MyCommonInterface owner = (MyCommonInterface)
| sessionContext.getBusinessObject(iface);
| EventListener listener = (EventListener) new
InitialContext() .lookup("my-ear/EventListenerEjb/remote");
| owner.setEventListener(listener);
| // the next line throw ClassNotFoundException
| listener.setReceiver(vbean);
|
|
| 14:14:39,978 ERROR [VBeanInterceptor] VBean:
palmyra.baustein.geschaeftsverwaltung.antrag.ProtokollVBeanEjb@d213c: java.lang.Runti
| meException: java.lang.ClassNotFoundException:
palmyra.baustein.geschaeftsverwaltung.antrag.ProtokollVBeanEjb java.lang.ClassNotFo
| undException: palmyra.baustein.geschaeftsverwaltung.antrag.ProtokollVBeanEjb
| java.lang.RuntimeException: java.lang.ClassNotFoundException:
palmyra.baustein.geschaeftsverwaltung.antrag.ProtokollVBeanEjb
| at
org.jboss.aop.joinpoint.MethodInvocation.getArguments(MethodInvocation.java:276)
| at
org.jboss.ejb3.stateful.StatefulContainer.dynamicInvoke(StatefulContainer.java:328)
| at
org.jboss.ejb3.remoting.IsLocalInterceptor.invokeLocal(IsLocalInterceptor.java:81)
| at
org.jboss.ejb3.remoting.IsLocalInterceptor.invoke(IsLocalInterceptor.java:72)
| at
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
| at
org.jboss.ejb3.stateful.StatefulRemoteProxy.invoke(StatefulRemoteProxy.java:139)
| at $Proxy400.setReceiver(Unknown Source)
| at
palmyra.core.vorgangssteuerung.interceptor.VBeanInterceptor.doEJBAnnotation(VBeanInterceptor.java:125)
| at
palmyra.core.vorgangssteuerung.interceptor.VBeanInterceptor.postConstruct(VBeanInterceptor.java:97)
|
| Caused by: java.lang.ClassNotFoundException:
palmyra.baustein.geschaeftsverwaltung.antrag.ProtokollVBeanEjb
| at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
| at java.security.AccessController.doPrivileged(Native Method)
| at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
| at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
| at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
| at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
| at java.lang.Class.forName0(Native Method)
| at java.lang.Class.forName(Class.java:242)
| at sun.rmi.server.LoaderHandler.loadClass(LoaderHandler.java:430)
| at sun.rmi.server.LoaderHandler.loadClass(LoaderHandler.java:165)
| at java.rmi.server.RMIClassLoader$2.loadClass(RMIClassLoader.java:620)
| at
org.jboss.system.JBossRMIClassLoader.loadClass(JBossRMIClassLoader.java:91)
| at java.rmi.server.RMIClassLoader.loadClass(RMIClassLoader.java:247)
| at
sun.rmi.server.MarshalInputStream.resolveClass(MarshalInputStream.java:197)
| at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1544)
| at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1466)
| at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1699)
| at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1305)
| at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1634)
| at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1299)
| at java.io.ObjectInputStream.readObject(ObjectInputStream.java:348)
| at java.rmi.MarshalledObject.get(MarshalledObject.java:135)
| at
org.jboss.aop.joinpoint.MethodInvocation.getArguments(MethodInvocation.java:267)
|
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