[rules-users] Null Pointer Exception while adding rules

Hello, I'm getting the following exception while add new rules - java.lang.NullPointerException at java.util.zip.Inflater.ensureOpen(Inflater.java:325) at java.util.zip.Inflater.reset(Inflater.java:294) at java.util.zip.ZipFile.getInflater(ZipFile.java:372) at java.util.zip.ZipFile.getInputStream(ZipFile.java:320) at java.util.zip.ZipFile.getInputStream(ZipFile.java:286) at java.util.jar.JarFile.getInputStream(JarFile.java:387) at sun.net.www.protocol.jar.JarURLConnection.getInputStream(JarURLConnection.java:136) at java.net.URL.openStream(URL.java:1007) at java.lang.ClassLoader.getResourceAsStream(ClassLoader.java:1161) at com.sun.enterprise.loader.EJBClassLoader.getResourceAsStream(EJBClassLoader.java:834) at org.apache.catalina.loader.WebappClassLoader.getResourceAsStream(WebappClassLoader.java:1192) at org.drools.rule.CompositeClassLoader.getResourceAsStream(CompositeClassLoader.java:86) at org.drools.commons.jci.compilers.EclipseJavaCompiler$2.findType(EclipseJavaCompiler.java:240) at org.drools.commons.jci.compilers.EclipseJavaCompiler$2.findType(EclipseJavaCompiler.java:217) at org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.askForType(LookupEnvironment.java:122) at org.eclipse.jdt.internal.compiler.lookup.PackageBinding.getTypeOrPackage(PackageBinding.java:178) at org.eclipse.jdt.internal.compiler.lookup.Scope.getPackage(Scope.java:2060) at org.eclipse.jdt.internal.compiler.ast.QualifiedTypeReference.getTypeBinding(QualifiedTypeReference.java:65) at org.eclipse.jdt.internal.compiler.ast.TypeReference.resolveType(TypeReference.java:153) at org.eclipse.jdt.internal.compiler.ast.TypeReference.resolveSuperType(TypeReference.java:110) at org.eclipse.jdt.internal.compiler.lookup.ClassScope.findSupertype(ClassScope.java:1102) at org.eclipse.jdt.internal.compiler.lookup.ClassScope.connectSuperInterfaces(ClassScope.java:902) at org.eclipse.jdt.internal.compiler.lookup.ClassScope.connectTypeHierarchy(ClassScope.java:948) at org.eclipse.jdt.internal.compiler.lookup.CompilationUnitScope.connectTypeHierarchy(CompilationUnitScope.java:288) at org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.completeTypeBindings(LookupEnvironment.java:198) at org.eclipse.jdt.internal.compiler.Compiler.beginToCompile(Compiler.java:383) at org.eclipse.jdt.internal.compiler.Compiler.compile(Compiler.java:397) at org.drools.commons.jci.compilers.EclipseJavaCompiler.compile(EclipseJavaCompiler.java:351) 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:690) at org.drools.compiler.PackageBuilder.addPackage(PackageBuilder.java:653) at org.drools.compiler.PackageBuilder.addPackageFromDrl(PackageBuilder.java:290) at org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:488) at org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:25) This is not even consistent. It works some time and throws up the above exceptions at times. I'm using drools v 5.0.1 on glassfish application server. The jdk is - Java HotSpot(TM) Server VM (build 1.5.0_15-b04, mixed mode) Anyone have similar experiences? Thanks, nubi -- View this message in context: http://n3.nabble.com/Null-Pointer-Exception-while-adding-rules-tp454453p4... Sent from the Drools - User mailing list archive at Nabble.com.