[jboss-user] [EJB/JBoss] - Re: Queer error: java.lang.LinkageError: loader constraints
Looks like a classloader issue. I guess you have more than one jar, in the classpath,
containing the EJBHelper because of which you are running into this issue. See the
following wiki for more detailed explanation about how classloading works on JBoss:
http://wiki.jboss.org/wiki/Wiki.jsp?page=ClassCastExceptions
http://wiki.jboss.org/wiki/Wiki.jsp?page=ClassLoadingOverview
http://wiki.jboss.org/wiki/Wiki.jsp?page=JBossClassLoadingUseCases
http://wiki.jboss.org/wiki/Wiki.jsp?page=ClassLoadingConfiguration
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