[jboss-jira] [JBoss JIRA] Closed: (JBRULES-1096) NPE when using "exists" with "from"

NPE when using "exists" with "from" ----------------------------------- Key: JBRULES-1096 URL: http://jira.jboss.com/jira/browse/JBRULES-1096 Project: JBoss Rules Issue Type: Bug Security Level: Public(Everyone can see) Components: Reteoo, Drl Parser/Builder Affects Versions: 4.0.0.GA Reporter: Edson Tirelli Assigned To: Edson Tirelli Fix For: 4.0.1 NPE when adding a package with the following rule to a rulebase: package org.drools; global java.util.List results; rule "exists with from" when Cheesery( $cheeses : cheeses ) exists( Cheese( type == "stilton" ) from $cheeses ) then results.add( "true" ); end java.lang.NullPointerException at org.drools.reteoo.builder.BuildUtils.createBetaNodeConstraint(BuildUtils.java:168) at org.drools.reteoo.builder.GroupElementBuilder$ExistsBuilder.build(GroupElementBuilder.java:306) at org.drools.reteoo.builder.GroupElementBuilder.build(GroupElementBuilder.java:70) at org.drools.reteoo.builder.GroupElementBuilder$AndBuilder.build(GroupElementBuilder.java:112) at org.drools.reteoo.builder.GroupElementBuilder.build(GroupElementBuilder.java:70) at org.drools.reteoo.builder.ReteooRuleBuilder.addSubRule(ReteooRuleBuilder.java:136) at org.drools.reteoo.builder.ReteooRuleBuilder.addRule(ReteooRuleBuilder.java:109) at org.drools.reteoo.ReteooBuilder.addRule(ReteooBuilder.java:116) at org.drools.reteoo.ReteooRuleBase.addRule(ReteooRuleBase.java:262) at org.drools.common.AbstractRuleBase.addPackage(AbstractRuleBase.java:337) at org.drools.integrationtests.FirstOrderLogicTest.testExistsWithFrom(FirstOrderLogicTest.java:717) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at junit.framework.TestCase.runTest(TestCase.java:154) at junit.framework.TestCase.runBare(TestCase.java:127) at junit.framework.TestResult$1.protect(TestResult.java:106) at junit.framework.TestResult.runProtected(TestResult.java:124) at junit.framework.TestResult.run(TestResult.java:109) at junit.framework.TestCase.run(TestCase.java:118) at junit.framework.TestSuite.runTest(TestSuite.java:208) at junit.framework.TestSuite.run(TestSuite.java:203) at org.eclipse.jdt.internal.junit.runner.junit3.JUnit3TestReference.run(JUnit3TestReference.java:128) at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:460) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:673) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:386) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196)