Hi, Does drools work with JDK 1.4 ? The following is what i have in my xml rules file <?xml version="1.0"?> <rule-set name="Tests assignment rules" xmlns="http://drools.org/rules" xmlns:java="http://drools.org/semantics/java" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> <java:import>java.lang.String</java:import> <java:import>java.util.List</java:import> <rule name="rule1" salience="100"> <parameter identifier="message"> <java:class> String </java:class> </parameter> <java:condition>message.equals("testMessage")</java:condition> <java:consequence> System.out.println("Received message "+testMessage); </java:consequence> </rule> </rule-set> Have included the following jar files in the classpath. 1) drools-compiler-4.0.0.jar 2) drools-core-4.0.0.jar 3) antlr-runtime-3.0.jar 4) core-3.2.3.v_686_R32x.jar 5) mvel14-1.2rc1.jar Have placed the rules in an xml file. The xml file is placed in the folder/package "rules/test". When the application tries to call the "loadFromReader" method, after getting the InputStreamReader, i get the following exception [8/10/07 13:16:24:173 GMT] 00000045 SystemErr R org.drools.compiler.PackageBuilder$MissingPackageNameException: Missing package name for rule package. Would appreciate if someone could guide me on this. -- P.N.Subramanian ------------------------------------------------------------------------ _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users