Mike, This looks like a classpath problem indeed. Did you tried asking the JVM to dump its classpath so that you can know for sure what jars are included and if any of them embeds a non-compatible ASM version ?
[]s Edson 2007/12/30, J Michael Dean <[EMAIL PROTECTED]>: > > Continuing to have problems - can use Drools in RCP but when I try to > JUnit test, I cannot instantiate a PackageBuilder. With the following code > fragment: > @BeforeClass > public static void setUp() throws Exception { > Reader source; > PackageBuilderConfiguration pkgConfig = new PackageBuilderConfiguration(); > JavaDialectConfiguration javaDialectConf = (JavaDialectConfiguration) > pkgConfig.getDialectConfiguration("java"); > javaDialectConf.setCompiler(JavaDialectConfiguration.ECLIPSE); > > > if (pkgConfig == null) { > System.out.println("Error - null package configuration"); > } else { > System.out.println("Package configuration is not null"); // NOTE THAT THIS > EXECUTES SO NOT NULL > } > final PackageBuilder builder = new PackageBuilder(pkgConfig); // CRASH > OCCURS IN THIS LINE OF CODE > > > I get the following trace: > > Package configuration is not null > java.lang.NullPointerException > at org.mvel.optimizers.OptimizerFactory.<clinit>(OptimizerFactory.java:43) > at org.drools.rule.builder.dialect.mvel.MVELDialect.init(MVELDialect.java > :142) > at org.drools.compiler.DialectRegistry.initAll(DialectRegistry.java:49) > at org.drools.compiler.PackageBuilder.<init>(PackageBuilder.java:146) > at org.drools.compiler.PackageBuilder.<init>(PackageBuilder.java:108) > at droolsRules.tests.AllDroolsRulesTests.setUp(AllDroolsRulesTests.java:49 > ) > 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 org.junit.internal.runners.BeforeAndAfterRunner.invokeMethod( > BeforeAndAfterRunner.java:74) > at org.junit.internal.runners.BeforeAndAfterRunner.runBefores( > BeforeAndAfterRunner.java:50) > at org.junit.internal.runners.BeforeAndAfterRunner.runProtected( > BeforeAndAfterRunner.java:33) > at org.junit.internal.runners.TestClassRunner.run(TestClassRunner.java:52) > at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run( > JUnit4TestReference.java:38) > 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) > [MVEL] Notice: Possible incorrect version of ASM present (3.0 required). > Disabling JIT compiler. Reflective Optimizer will be used. > > I had similar issue a number of weeks ago that never resolved, but > subsequently have upgraded Eclipse to 3.3.2, running on OSX Leopard. I > cannot locate a ASM library and obviously the error message is hinting at > that. > > Any assistance will be appreciated. I hate proceeding without JUnit > testing in place. > > - Mike > > _______________________________________________ > rules-users mailing list > rules-users@lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users > > -- Edson Tirelli JBoss Drools Core Development Office: +55 11 3529-6000 Mobile: +55 11 9287-5646 JBoss, a division of Red Hat @ www.jboss.com
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