Hello, I'm using drools-spring version 5.3.0.Final, jdk 5. During execution, i have this error: Caused by: java.lang.NoSuchMethodError: java.lang.String.isEmpty()Z at org.drools.container.spring.namespace.ResourceDefinitionParser.parseInternal(ResourceDefinitionParser.java:89). Indeed the class ResourceDefinitionParser use String.empty. This is an upgrade from 5.2.1.Final. Is it a bug? Or is the compatibity with jdk5 no more maintained? Thanks. -- View this message in context: http://drools.46999.n3.nabble.com/drools-spring-Incompatibility-with-jdk-... Sent from the Drools: User forum mailing list archive at Nabble.com. _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users