Extending classes in JBoss, and wierd signature error

I have two classes that work in the JUnit test but don't work in JBoss:

I have two classes and one extends the other:

com.mobilvox.lexiconservice.common.LexiconValueObject

com.mobilvox.lexiconservice.client.LexiconSessionObject extends LexiconValueObject

When I try to call a method such as LexiconSessionObject.loadDefaultLexicon(),

I get an error like:

[quote]

java.lang.NoSuchMethodError: com.mobilvox.lexiconservice.client.LexiconSessionObject.loadDefaultLexicon()V[/quote]

Which doesn't make sense since LexiconSessionObject extends LexiconValueObject, and loadDefaultLexicon() is declared as a public method in LexiconValueObject.

So why can't I call my function?

[734 byte] By [Maskkkka] at [2008-1-26]