[EJB/JBoss] - Re: Queer error: java.lang.LinkageError: loader constraints - jboss-user

Tuesday, 4 March 2008

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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[EJB/JBoss] - Re: Queer error: java.lang.LinkageError: loader constraints