i have the same problem with the JbossAOP-IDE-Plugins. But only when i did the following:
- create a JBossIDE/j2ee-project
- convert that project to AOP Project using right click on project and "Convert to AOPProject..."

That will made fine but afterwards im unable to load any of the JBoss-IDE-Plugins with the similar error-message you get.

I i delete that converted J2EE-Project out of my workbench all runs fine again.

So maybe try that too...delete all projects and try again.

oh and i needed to delete the .metadata-dir of the eclipse-workspace.

i think i got it now. it has something todo with the Library "J2EE 1.4 Libraries (JBoss-IDE)"

I i have a project in my workspace that is converted to an AOP-Project or is one since the beginning and i add this Library to this project i get this error right after the next restart of the exlipse workbench. If i remove it again all went fine again.

@any JBoss-Internal: Is that an official issue or even a "dont-do" ? If so, how are am i able to use J2EE-Features like Beans in an aop-project ?

i tried further...it seems that not the J2EE-Library itself makes trouble but the classes who uses this Library

for example: i have this AOPProject with J2EE1.4-Library included. I insert a normal class with no J2EE-stuff and it runs fine. When i add a interface-class with just this lines i get the error:

package beans;

import java.rmi.RemoteException;

/**
 * Remote interface for Enterprise Bean: Facade
 */
public interface Facade extends javax.ejb.EJBObject {


 public String sayHello() throws RemoteException;

}

Try JBossAOP Developer 1.1 RC 1, and use the latest Eclipse version

http://www.jboss.com/products/jbosside/downloads

"kabir.khan@jboss.com" wrote:
Try JBossAOP Developer 1.1 RC 1, and use the latest Eclipse version

http://www.jboss.com/products/jbosside/downloads