Can't use functions when MVEL dialect is set at package level ------------------------------------------------------------- Key: JBRULES-2298 URL: https://jira.jboss.org/jira/browse/JBRULES-2298 Project: Drools Issue Type: Bug Security Level: Public (Everyone can see) Components: drools-compiler Affects Versions: 5.0.1.FINAL Reporter: Michael Neale Assignee: Edson Tirelli Priority: Critical package jboss.cloud dialect "mvel" #trying to get functions working... rule "something" when s: SimpleFact(id == 42, name == "michael") then System.out.println("hello"); end function String doSomething() { return "hey"; } And I get: java.lang.NullPointerException at org.drools.rule.builder.dialect.mvel.MVELDialect.compile(MVELDialect.java:510) at org.drools.rule.builder.dialect.mvel.MVELDialect.addFunction(MVELDialect.java:338) at org.drools.compiler.PackageBuilder.addFunction(PackageBuilder.java:1104) at org.drools.compiler.PackageBuilder.addPackage(PackageBuilder.java:626) at org.drools.compiler.PackageBuilder.addPackageFromDrl(PackageBuilder.java:290) at org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:488) at org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:25) -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: https://jira.jboss.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira