Weird IllegalMonitorStateException -- explanations/suggestions wanted

[Joel McNary]

Hey, all:
I'm getting an IllegalMonitorStateException in a weird line of code, and I'm not sure what is causing it. Here's the code:

  
    /** inserts (creates) a new record in persistent storage based on the specified object.
     * @param aBean java.lang.Object: the object to insert into persistent storage.
     * @param aMetadata ClassPersistenceMetadata: the metadata of the object to persist.
     * @throws PersistenceException if the bean could not be inserted.
     */
    public void insertBean(Object aBean, com.convergents.foundation.persistence.ClassPersistenceMetadata aMetadata) throws com.convergents.foundation.persistence.PersistenceException {
        AttributePersistenceMetadata anAttribute;
        ASCIIFileServer aServer;
        java.util.Hashtable anElement;
        ASCIIPrimaryKey aKey;
        ASCIIFile aFile;
        int index, count;
        
        aServer = (ASCIIFileServer)(new ASCIIFileServer().getThreadInstance());
        if(!aServer.doesFileExistForMetadata(aMetadata)){
            aServer.parseFileForMetadata(aMetadata);
        }
        
        aKey = this.createASCIIPrimaryKeyFor(aBean, aMetadata);
        anElement = aServer.findElementFor(aKey, aMetadata);
        if(anElement != null){
            if(!aMetadata.hasAttributeWithValue("AllowMultiples","Yes")){
                throw new PersistenceException("Unable to create Element (" + aBean.getClass().getName() + ") for Key " + aKey + "\nReason:  Element already exists!");
            }
        }
        
        aKey = new ASCIIPrimaryKey();
        anElement = this.dataRecordFor(aBean, aMetadata, aKey);
        
        aServer.insertElementWithKey(anElement, aKey, aMetadata);
        aServer.removeFileForMetadata(aMetadata);
        
        return;
    }

The IllegalMonitorStateException is thrown at the aServer.insertElementWithKey(anElement, aKey, aMetadata); line of code. The exception states: "java.lang.IllegalMonitorStateException: current thread not owner"
This code worked fine when it was running locally, but when the code was moved to an EJB server and the process started remotely, it threw this exception.
[ June 07, 2002: Message edited by: Joel McNary ]

[Joel McNary]

I solved it almost immediately after I posted the message. (That's why I post messages; it makes me solve my problems faster ) It had nothing to do with the code; instead, the machine on which the code was written/compiled/tested was running Java 1.4, and the EJB server was running 1.2.2. 1.2.2 didn't like the 1.4 code, needless to say. I recompiled everything under 1.2.2, and it worked fine.

[Mr. C Lamont Gilbert]

Yep, thats what happens to me too