[rules-users] java.lang.ArrayIndexOutOfBoundsException at Frame

Hi Drools Users, I'm new member, Mujoko. I got issue regarding my rules. Several times got exception when trying to create KnowledgeSession. I used drools-core 5.3.0.Final and drools-compiler 5.3.0.Final. java.lang.ArrayIndexOutOfBoundsException: -1 at org.mvel2.asm.Frame.merge(Frame.java:1373) at org.mvel2.asm.Frame.merge(Frame.java:1350) at org.mvel2.asm.MethodWriter.visitMaxs(MethodWriter.java:1282) at org.drools.rule.builder.dialect.asm.ClassGenerator$MethodDescr.write(ClassGenerator.java:480) at org.drools.rule.builder.dialect.asm.ClassGenerator.generateBytecode(ClassGenerator.java:50) at org.drools.rule.builder.dialect.asm.ASMEvalBuilder.createEvalBytecode(ASMEvalBuilder.java:63) at org.drools.rule.builder.dialect.asm.AbstractASMEvalBuilder.build(AbstractASMEvalBuilder.java:49) at org.drools.rule.builder.dialect.asm.AbstractASMEvalBuilder.build(AbstractASMEvalBuilder.java:15) at org.drools.rule.builder.GroupElementBuilder.build(GroupElementBuilder.java:65) at org.drools.rule.builder.RuleBuilder.build(RuleBuilder.java:80) at org.drools.compiler.PackageBuilder.addRule(PackageBuilder.java:2289) at org.drools.compiler.PackageBuilder.addPackage(PackageBuilder.java:822) -- Mujoko http://www.linkedin.com/in/mujoko