Guvnor 5.5.0 on Tomcat 7 I have 2 model jars: x.jar y.jar Both contain our domain pojos. y.jar does not have any dependencies. x.jar has a reference to a class in y.jar When I upload y.jar, no errors When I upload x.jar after y.jar is already uploaded, I get this error for the class that is in y.jar Caused by: java.lang.NoClassDefFoundError: com/classFromY.jar at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClassCond(ClassLoader.java:630) at java.lang.ClassLoader.defineClass(ClassLoader.java:614) at org.drools.rule.MapBackedClassLoader.fastFindClass(MapBackedClassLoader.java:85) at org.drools.rule.MapBackedClassLoader.loadClass(MapBackedClassLoader.java:103) at java.lang.ClassLoader.loadClass(ClassLoader.java:246) at org.drools.guvnor.server.contenthandler.ModelContentHandler.isClassVisible(ModelContentHandler.java:184) at org.drools.guvnor.server.contenthandler.ModelContentHandler.getImportsFromJar(ModelContentHandler.java:149) at org.drools.guvnor.server.contenthandler.ModelContentHandler.onAttachmentRemoved(ModelContentHandler.java:87) at org.drools.guvnor.server.RepositoryAssetService.archiveOrUnarchiveAsset(RepositoryAssetService.java:489) Due to project/organization, I am not able to merge both jars. So question... Does the Guvnor pojo jar require that it cannot have any dependencies outside the jar? even if the other jar is also uploaded? thanks -- View this message in context: http://drools.46999.n3.nabble.com/Guvnor-5-5-POJO-upload-error-when-there... Sent from the Drools: User forum mailing list archive at Nabble.com.