[jboss-jira] [JBoss JIRA] Commented: (JBMDR-73) "No original methods found" error when deploying EJBs that extend base classes

[Richard Kennard (JIRA)]

    [ https://issues.jboss.org/browse/JBMDR-73?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12575787#comment-12575787 ] 

Richard Kennard commented on JBMDR-73:
--------------------------------------

Ales,

Many thanks for attaching the JAR. I'm afraid it does not seem to work for me? I still get...

Caused by: java.lang.IllegalStateException: No original methods found: Caused by: java.lang.IllegalStateException: No original methods found: public com.kennardconsulting.core.ejb.entity.NamedEntity com.myapp.EventBean.loadByExample(java.lan
g.Class,com.kennardconsulting.core.ejb.entity.BaseEntity)
        at org.jboss.metadata.plugins.loader.reflection.AnnotatedElementMetaDataLoader.searchForRealBridgeMethodSignature(AnnotatedElementMetaDataLoader.java:379) [jboss-mdr.jar:2.2.1-SNAPSHOT]
        at org.jboss.metadata.plugins.loader.reflection.AnnotatedElementMetaDataLoader.getComponentMetaDataRetrieval(AnnotatedElementMetaDataLoader.java:193) [jboss-mdr.jar:2.2.1-SNAPSHOT]
        at org.jboss.metadata.plugins.context.AbstractMetaDataContext.getComponentMetaDataRetrieval(AbstractMetaDataContext.java:287) [jboss-mdr.jar:2.2.1-SNAPSHOT]
        at org.jboss.metadata.plugins.context.AbstractMetaDataContext.getComponentMetaDataRetrieval(AbstractMetaDataContext.java:298) [jboss-mdr.jar:2.2.1-SNAPSHOT]
        at org.jboss.metadata.spi.retrieval.MetaDataRetrievalToMetaDataBridge.getComponentMetaData(MetaDataRetrievalToMetaDataBridge.java:168) [jboss-mdr.jar:2.2.1-SNAPSHOT]
        at org.jboss.ejb3.metadata.annotation.AnnotationRepositoryToMetaData.resolveAnnotation(AnnotationRepositoryToMetaData.java:379) [:1.0.0]
        at org.jboss.ejb3.aop.annotation.CachingAnnotationRepository.resolveAnnotation(CachingAnnotationRepository.java:276) [:1.7.17]

The error is in 'EventBean'. The method referred to is in a base class 3 levels deep and is defined using generics...

public class EventBean
	extends SpecificNamedEntityBean<Event>
	implements IEventBean {

        ...loadByExample not overridden...
}

public abstract class SpecificNamedEntityBean<NE extends NamedEntity>
	extends NamedEntityBean<NE> {

        ...loadByExample not overridden...
}


public class NamedEntityBean<NE extends NamedEntity>
	extends PersistentEntityBean<NE>
	implements INamedEntityBean<NE> {

        ...loadByExample not overridden...
}

public class PersistentEntityBean<PE extends PersistentEntity>
	extends BaseSessionBean
	implements IPersistentEntityBean<PE> {

        public PE loadByExample( Class<PE> entity, BaseEntity example ) {
}

Note that the method quoted in the error appears to be getting the generics wrong. It should be referring to 'Event loadByName( Class, name )' not 'NamedEntity loadByName( Class, BaseEntity )'. Is that significant?

Richard.

> "No original methods found" error when deploying EJBs that extend base classes
> ------------------------------------------------------------------------------
>
>                 Key: JBMDR-73
>                 URL: https://issues.jboss.org/browse/JBMDR-73
>             Project: JBoss MetaData Repository
>          Issue Type: Bug
>          Components: Loader, MetaData
>            Reporter: Richard Kennard
>            Assignee: Ales Justin
>            Priority: Critical
>         Attachments: JBAS-8780.patch, jboss-mdr.jar
>
>
> An error, new to JBoss 6 (works okay in JBoss 5.1.0)...
> "java.lang.IllegalStateException: No original methods found"
> ...halts deployment when you try to deploy an EJB that subclasses a base class with public methods.
> For example, if you have a base class 'PersistentEntityBean' that has a bunch of methods related to loading/saving/deleting, and then you extend that base class with 'EmployerBean' simply to override loading/saving (but without adding any extra methods), it will fail to deploy.
> A workaround (from the forum) appears to be to override *every* subclassed method and just call 'super'. However this error even occurs for public final methods, which clearly cannot be overridden.

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