assertEquals(0, counter2.get());

        executor2.shutdown();
        assertEquals(1, counter1.get());
        assertEquals(1, counter2.get());
    }

    @Test
    public void test_execute_differentScriptTypes() {
        // Test different script types
        Object result = jobExecutor.execute("javascript", "console.log('test')");
        assertEquals("Executed: javascript console.log('test')", result);