visitor.contribute(new SynchronizedCheck());
visitor.contribute(new MethodSynchronizedCheck());
visitor.contribute(new AssertCheck());
visitor.contribute(new IdentifierGlobalScopeNameClashCheck());
visitor.contribute(new MemberSelectGlobalScopeNameClashCheck());
visitor.contribute(new MethodDeclarationTemplateCheck());
visitor.contribute(new IdentifierAccessOuterScopeCheck());
visitor.contribute(new MethodInvocationOuterScopeCheck());