I think this might be the same problem I was having.. http://drools.46999.n3.nabble.com/Uploading-JAR-using-REST-td4022115.html#a4022202 -- View this message in context: http://drools.46999.n3.nabble.com/Guvnor-Rest-API-for-uploading-model-tp4024007p4024010.html Sent from the Drools: User forum mailing list archive at Nabble.com.