Re: [rules-users] JUnit Test failure when Eclipse library present on eclipse classpath

I'm not really sure what to make of this, but when the Drools Runtime library is present on my project classpath in Eclipse, any of my junit tests that reference Drools fail, but if I remove the runtime library from that same classpath, everything runs as expected. The output in the console: Build groovy files option has not been set one way or the other: use 'options.put(CompilerOptions.OPTIONG_BuildGroovyFiles, CompilerOptions.ENABLED);' (I'm not using groovy files of any kind) But then I also get a really long stack trace in the JUnit output pane (truncated once it reaches my code): java.lang.NoClassDefFoundError: org/eclipse/core/runtime/Plugin at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:621) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124) at java.net.URLClassLoader.defineClass(URLClassLoader.java:260) at java.net.URLClassLoader.access$100(URLClassLoader.java:56) at java.net.URLClassLoader$1.run(URLClassLoader.java:195) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:188) at java.lang.ClassLoader.loadClass(ClassLoader.java:307) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:268) at java.lang.ClassLoader.loadClass(ClassLoader.java:252) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320) at org.eclipse.jdt.internal.compiler.Compiler.initializeParser(Compiler.java:737) at org.eclipse.jdt.internal.compiler.Compiler.<init>(Compiler.java:294) at org.eclipse.jdt.internal.compiler.Compiler.<init>(Compiler.java:159) at org.drools.commons.jci.compilers.EclipseJavaCompiler.compile(EclipseJavaCompiler.java:349) at org.drools.commons.jci.compilers.AbstractJavaCompiler.compile(AbstractJavaCompiler.java:51) at org.drools.rule.builder.dialect.java.JavaDialect.compileAll(JavaDialect.java:389) at org.drools.compiler.DialectCompiletimeRegistry.compileAll(DialectCompiletimeRegistry.java:56) at org.drools.compiler.PackageRegistry.compileAll(PackageRegistry.java:74) at org.drools.compiler.PackageBuilder.compileAll(PackageBuilder.java:677) at org.drools.compiler.PackageBuilder.addPackage(PackageBuilder.java:640) at org.drools.compiler.PackageBuilder.addPackageFromDrl(PackageBuilder.java:266) at org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:458) at org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:28) at net.intellidata.pricing.PricingEngine.cacheKnowledgeBase(PricingEngine.java:136) To top it off, the same test runs fine on my boss's computer, but not on mine. Neither of us is sure why. What am I missing?