User development, A new message was posted in the thread "Issue specifying the <jar-file> in persistence.xml in JBOSS 5 on linux system": http://community.jboss.org/message/519640#519640 Author : jaikiran pai Profile : http://community.jboss.org/people/jaikiran Message: -------------------------------------------------------------- I don't have access to a Windows system. Could you please upload the entire server.log and boot.log from the windows system where this exception occurs? -------------------------------------------------------------- To reply to this message visit the message page: http://community.jboss.org/message/519640#519640