Mario Fusco created JBRULES-3427: ------------------------------------ Summary: Wrong pattern's offsets calculation with complex LHS conditions Key: JBRULES-3427 URL: https://issues.jboss.org/browse/JBRULES-3427 Project: Drools Issue Type: Bug Security Level: Public (Everyone can see) Reporter: Mario Fusco Assignee: Mario Fusco When combining AND and OR conditions in a complex LHS, the pattern's offsets is not calculated correctly leading to a NPE when trying to extract the object related with the wrong pattern from a tuple. The following test reproduces the problem: @Test public void testPatternOffset() throws Exception { String str = "package org.drools.test; \n" + "declare A\n" + "end\n" + "declare B\n" + " field : int\n" + "end\n" + "declare C\n" + " field : int\n" + "end\n" + "rule R when\n" + "( " + " A( ) or ( A( ) and B( ) ) " + ") and (\n" + " A( ) or ( B( $bField : field ) and C( field != $bField ) )\n" + ")\n" + "then\n" + " System.out.println(\"rule fired\");\n" + "end\n"; KnowledgeBase kbase = loadKnowledgeBaseFromString( str ); StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession(); FactType typeA = kbase.getFactType( "org.drools.test", "A" ); FactType typeB = kbase.getFactType( "org.drools.test", "B" ); FactType typeC = kbase.getFactType( "org.drools.test", "C" ); Object a = typeA.newInstance(); ksession.insert( a ); Object b = typeB.newInstance(); typeB.set( b, "field", 1 ); ksession.insert( b ); Object c = typeC.newInstance(); typeC.set( c, "field", 1 ); ksession.insert( c ); ksession.fireAllRules(); } -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.jboss.org/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira