Integer comp3 = 123;

        ComponentUtil.register(comp1, "name1");
        ComponentUtil.register(comp2, "name2");
        ComponentUtil.register(comp3, "name3");

        assertEquals(comp1, ComponentUtil.getComponent("name1"));
        assertEquals(comp2, ComponentUtil.getComponent("name2"));
        assertEquals(comp3, ComponentUtil.getComponent("name3"));
    }

        TestScriptEngine engine1 = new TestScriptEngine("first");
        TestScriptEngine engine2 = new TestScriptEngine("second");

        scriptEngineFactory.add("name1", engine1);
        scriptEngineFactory.add("name2", engine2);

        // Both engines have same class name, so second should replace first for class name lookup
        ScriptEngine retrievedByClass = scriptEngineFactory.getScriptEngine("testscriptengine");