Andrew Tan [https://community.jboss.org/people/atan20] created the discussion "Re: drools-guvnor.war deployment issue in SOA-P5.3.1" To view the discussion, visit: https://community.jboss.org/message/819589#819589 -------------------------------------------------------------- I solved my issue. I was getting the error above because I installed JBoss SOA-P into a vmware "SharedFolder" that is shared with the Windows 7 host. After moving the installation to /opt on the local disc for the Linux server the issue did not come up. I was getting more deployment errors after but after following this guide: https://community.jboss.org/wiki/DroolsGuvnor50InJBossAS5I https://community.jboss.org/wiki/DroolsGuvnor50InJBossAS5 I removed the following jars from the drools-guvnor.war and drools-guvnor is working in JBoss SOA-P 5.3.1: - ./WEB-INF/lib/xercesImpl-2.9.1.jar - ./WEB-INF/lib/xml-apis-1.3.04.jar  -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/819589#819589] Start a new discussion in jBPM at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&...]