I used yesterday's 6.1.0 nightly and the problem wasn't there. Will using the 6.0.x snapshot be any different? -- View this message in context: http://drools.46999.n3.nabble.com/OutOfMemoryError-using-6-0-1-tp4028183p4028210.html Sent from the Drools: User forum mailing list archive at Nabble.com.