See JBAS-7631.

The org.jboss.ejb3.common.resolvers.spi.EjbReferenceResolverBase#getMatch(EjbReference reference, JBossMetaData metadata, ClassLoader cl) cannot handle null metadata. Rightly so. The code calling this method (for ex: org.jboss.ejb3.core.resolvers.ScopedEJBReferenceResolver#find(DeploymentUnit du, EjbReference reference)) must do a null check on the metadata being passed. Also update the javadoc of the EjbReferenceResolverBase#getMatch method to explicitly mention this.