static TypeResolver getTypeResolver( final InvokerStub stub, final WorkingMemory workingMemory, final CompositeClassLoader classLoader) { org.drools.rule.Package pkg = workingMemory.getRuleBase().getPackage(stub.getPackageName()); TypeResolver typeResolver = pkg == null ? null : pkg.getTypeResolver(); if (typeResolver == null) { Set<String> imports = new HashSet<String>(); for (String imp : stub.getPackageImports()) { imports.add(imp); } typeResolver = new ClassTypeResolver(imports, classLoader, stub.getPackageName()); } return typeResolver; }