NPE in Pattern Builder (invalid unification usage) -------------------------------------------------- Key: JBRULES-3071 URL: https://issues.jboss.org/browse/JBRULES-3071 Project: Drools Issue Type: Bug Security Level: Public (Everyone can see) Components: drools-compiler (expert) Affects Versions: 5.2.0.CR1 Reporter: Wolfgang Laun Assignee: Mark Proctor Fix For: 5.2.0 class Person { String name; } $p1: Person( $name := name, age < 20 ) $p2: Person( $name; ) Exception in thread "main" java.lang.NullPointerException at org.drools.rule.builder.PatternBuilder.processPositional(PatternBuilder.java:372) at org.drools.rule.builder.PatternBuilder.processConstraintsAndBinds(PatternBuilder.java:341) at org.drools.rule.builder.PatternBuilder.build(PatternBuilder.java:262) at org.drools.rule.builder.PatternBuilder.build(PatternBuilder.java:120) at org.drools.rule.builder.GroupElementBuilder.build(GroupElementBuilder.java:65) at org.drools.rule.builder.RuleBuilder.build(RuleBuilder.java:81) at org.drools.compiler.PackageBuilder.addRule(PackageBuilder.java:1769) at org.drools.compiler.PackageBuilder.addPackage(PackageBuilder.java:743) at org.drools.compiler.PackageBuilder.addPackageFromDrl(PackageBuilder.java:358) at org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:536) at org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:28) -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira