Hi,
I need to store different contents in the same EJB3 container as shows in the
following code.
| @Entity
| @Table(name = "wk_container")
| public class Container implements Serializable
| {
| Long id;
| String containerName;
|
| Content content;
|
| @Id
| @GeneratedValue(strategy=GenerationType.AUTO)
| public Long getId()
| {
| return id;
| }
|
| public void setId(Long id)
| {
| this.id = id;
| }
|
| public String getContainerName()
| {
| return containerName;
| }
|
| public void setContainerName(String containerName)
| {
| this.containerName = containerName;
| }
|
| public Content getContent()
| {
| return content;
| }
|
| public void setContent(Content content)
| {
| this.content = content;
| }
|
| }
|
| public class Content implements java.io.Serializable
| {
| String info1;
| Long info2;
|
| public String getInfo1()
| {
| return info1;
| }
|
| public void setInfo1(String info1)
| {
| this.info1 = info1;
| }
|
| public Long getInfo2()
| {
| return info2;
| }
|
| public void setInfo2(Long info2)
| {
| this.info2 = info2;
| }
|
| public void function()
| {}
| }
|
|
Container and Content are packaged into a single .jar and deployed into jboss.
My client rich client is
| ........
| ctx = new InitialContext(props);
|
| ContainerManager contManager = (ContainerManager)
ctx.lookup("ContainerBean/remote");
|
| Container container1 = new Container();
| Container container2 = new Container();
|
| Content content = new Content();
|
| content.setInfo1("string info");
| content.setInfo2(new Long(1));
|
| container1.setContainerName("container 1");
| container1.setContent(content);
| container1 = contManager.merge(container1);
|
|
| DerivedContent derivedContent = new DerivedContent();
|
| derivedContent.setInfo1("string info");
| derivedContent.setInfo2(new Long(2));
|
| container2.setContainerName("container 2");
| container2.setContent(derivedContent);
|
| container2 = contManager.merge(container2);
| ........
|
DerivedContent is:
| public class DerivedContent extends Content implements Serializable
| {
| public DerivedContent()
| {
| super();
| }
|
| @Override
| public void function()
| {
| System.out.println("DerivedContent function");
| }
| }
|
When I try to merge the container2 that includes the DerivedContent instance I
get the following error:
| Exception in thread "main" java.lang.RuntimeException:
java.lang.ClassNotFoundException: No ClassLoaders found for:
testworkflowhandlers.client.DerivedContent (no security manager: RMI class
loader disabled)
| at
org.jboss.aop.joinpoint.MethodInvocation.getArguments(MethodInvocation.java:227)
| at
org.jboss.ejb3.stateless.StatelessContainer.dynamicInvoke(StatelessContainer.java:216)
| at org.jboss.aop.Dispatcher.invoke(Dispatcher.java:107)
| at
org.jboss.aspects.remoting.AOPRemotingInvocationHandler.invoke(AOPRemotingInvocationHandler.java:82)
| at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:580)
| at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:450)
| at
org.jboss.remoting.transport.socket.ServerThread.processInvocation(ServerThread.java:290)
| at
org.jboss.remoting.transport.socket.ServerThread.dorun(ServerThread.java:344)
| at
org.jboss.remoting.transport.socket.ServerThread.run(ServerThread.java:202)
| Caused by: java.lang.ClassNotFoundException: No ClassLoaders found for:
testworkflowhandlers.client.DerivedContent (no security manager: RMI class
loader disabled)
| at sun.rmi.server.LoaderHandler.loadClass(LoaderHandler.java:371)
| 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:79)
| 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:1538)
| at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1460)
| at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1693)
| at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1299)
| at
java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1912)
| at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1836)
| at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1713)
| at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1299)
| at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1628)
| at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1293)
| at java.io.ObjectInputStream.readObject(ObjectInputStream.java:339)
| at java.rmi.MarshalledObject.get(MarshalledObject.java:135)
| at
org.jboss.aop.joinpoint.MethodInvocation.getArguments(MethodInvocation.java:219)
| ... 8 more
|
The ContainerManager is:
| @Stateless
| @Remote(ContainerManager.class)
| public class ContainerBean implements ContainerManager
| {
| @PersistenceContext(unitName="Workflow")
| private EntityManager manager;
|
| public void persist(Container container)
| {
| manager.persist(container);
| }
|
| public Container merge(Container container)
| {
| return manager.merge(container);
| }
|
| public Container find(Long id)
| {
| return manager.find(Container.class, id);
| }
|
| public void remove(Container container)
| {
| manager.remove(container);
| }
|
| }
|
It seams to me that the ContainerBean is not able to load DerivedContent since
it is not into the deployed jar.
Shouldn't DerivedContent transferred by the RMI protocol ?
I can't put DerivedContent into the jar file since the Container should be a
generic manger for different contents and only the client application should
know about it.
Can anyone give me any suggestion ?
Thanks
Fabrizio
PS: My environment is
* jboss-4.0.3SP1
* jboss-EJB-3.0_RC5-PFD
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