Janno has no configurations as such, so it should work. If it doesn't work I'm guessing it's a bug with Janino. You could probably recreate the issue outside of Drools and submit a bug to the Janino author. Mark Joe White wrote:

A word of caution on this topic. It looks like drools 4.0.4 works great with janino2.5.10 which drools comes packaged with, but does not work with janino2.5.13 (the latest release). Joe From: rules-users-bounces(a)lists.jboss.org [mailto:rules-users-bounces@lists.jboss.org] On Behalf Of Joe White Sent: Thursday, April 10, 2008 5:28 PM To: Rules Users List Subject: RE: [rules-users] Janino Autoboxing inside drools Thanks for the quick reply. In my attempts to reproduce the issue outside of Drools I have found that the issue was caused by an antique version of Janino hiding in a library in an imported eclipse project. After upgrading to the newer version of Janino things appear to be working. Thanks for your help, Joe From: rules-users-bounces(a)lists.jboss.org [mailto:rules-users-bounces@lists.jboss.org] On Behalf Of Mark Proctor Sent: Thursday, April 10, 2008 12:46 PM To: Rules Users List Subject: Re: [rules-users] Janino Autoboxing inside drools Janno has no configurations as such, so it should work. If it doesn't work I'm guessing it's a bug with Janino. You could probably recreate the issue outside of Drools and submit a bug to the Janino author. Mark Joe White wrote: According to the Janino Jira in http://jira.codehaus.org/browse/JANINO-72 autoboxing was supported in version 2.5.6. It looks like drools 4.0.4 uses Janino 2.5.10. The test below uses a DRL file that would require autoboxing and it produces a runtime exception from Janino. Does anybody know of a way to make a Janino/Drools Autoboxing combination work? I have to use autoboxing and I would very much prefer to use Janino over MVEL for drl compilation. Thanks for your help, Joe The information below includes the stack trace, the Input java file, the DRL, and a snippet for the drools setup and execution. The exception is easy to produce and the info below should be enough to reproduce it. /********************INPUT JAVA OBJECT *******************************/ package com.sample; public class Input { public Double valOne; public Double valTwo; public Double getValOne() { return valOne; } public void setValOne(Double valOne) { this.valOne = valOne; } public Double getValTwo() { return valTwo; } public void setValTwo(Double valTwo) { this.valTwo = valTwo; } } /********************END *******************************/ /********************DRL *******************************/ package test; import com.sample.Input dialect "java" rule "test 293" when inputVal : Input() then //double valOne = 0; double deductibleapplied =inputVal.valOne*inputVal.valTwo; end /********************END *******************************/ /********************DROOLS SETUP *******************************/ ... PackageBuilderConfiguration pkgBuilderCfg = new PackageBuilderConfiguration(); JavaDialectConfiguration javaConf = (JavaDialectConfiguration) pkgBuilderCfg.getDialectConfiguration( "java" ); javaConf.setCompiler( JavaDialectConfiguration.JANINO ); PackageBuilder builder = new PackageBuilder(pkgBuilderCfg); ... Input input = new Input(); input.setValOne(10.0); input.setValTwo(1000.0); workingMemory.insert( input ); workingMemory.fireAllRules(); /********************END *******************************/ /******************** STACK TRACE *******************************/ java.lang.RuntimeException: SNO: Conversion failed at org.codehaus.janino.UnitCompiler.binaryNumericPromotion(UnitCompiler.jav a) at org.codehaus.janino.UnitCompiler.compileArithmeticOperation(UnitCompiler .java) at org.codehaus.janino.UnitCompiler.compileGet2(UnitCompiler.java) at org.codehaus.janino.UnitCompiler.access$39(UnitCompiler.java) at org.codehaus.janino.UnitCompiler$7.visitBinaryOperation(UnitCompiler.jav a) at org.codehaus.janino.Java$BinaryOperation.accept(Java.java) at org.codehaus.janino.UnitCompiler.compileGet(UnitCompiler.java) at org.codehaus.janino.UnitCompiler.compileGetValue(UnitCompiler.java) at org.codehaus.janino.UnitCompiler.compile2(UnitCompiler.java) at org.codehaus.janino.UnitCompiler.access$12(UnitCompiler.java) at org.codehaus.janino.UnitCompiler$2.visitLocalVariableDeclarationStatemen t(UnitCompiler.java) at org.codehaus.janino.Java$LocalVariableDeclarationStatement.accept(Java.j ava) at org.codehaus.janino.UnitCompiler.compile(UnitCompiler.java) at org.codehaus.janino.UnitCompiler.compile2(UnitCompiler.java) at org.codehaus.janino.UnitCompiler.access$3(UnitCompiler.java) at org.codehaus.janino.UnitCompiler$2.visitBlock(UnitCompiler.java) at org.codehaus.janino.Java$Block.accept(Java.java) at org.codehaus.janino.UnitCompiler.compile(UnitCompiler.java) at org.codehaus.janino.UnitCompiler.compile(UnitCompiler.java) at org.codehaus.janino.UnitCompiler.compile2(UnitCompiler.java) at org.codehaus.janino.UnitCompiler.compile2(UnitCompiler.java) at org.codehaus.janino.UnitCompiler$1.visitPackageMemberClassDeclaration(Un itCompiler.java) at org.codehaus.janino.Java$PackageMemberClassDeclaration.accept(Java.java) at org.codehaus.janino.UnitCompiler.compile(UnitCompiler.java) at org.codehaus.janino.UnitCompiler.compileUnit(UnitCompiler.java) at org.codehaus.janino.Compiler.compile(Compiler.java) at org.drools.commons.jci.compilers.JaninoJavaCompiler.compile(JaninoJavaCo mpiler.java:174) at org.drools.commons.jci.compilers.AbstractJavaCompiler.compile(AbstractJa vaCompiler.java:51) at org.drools.rule.builder.dialect.java.JavaDialect.compileAll(JavaDialect. java:332) at org.drools.compiler.DialectRegistry.compileAll(DialectRegistry.java:60) at org.drools.compiler.PackageBuilder.addPackage(PackageBuilder.java:308) at org.drools.compiler.PackageBuilder.addPackageFromDrl(PackageBuilder.java :167) at com.sample.SimpleTester.readRule(SimpleTester.java:62) at com.sample.SimpleTester.main(SimpleTester.java:23) ________________________________ _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users