assertEquals(1, transformer3.getTransformCallCount());
    }

    /**
     * Test concurrent transformer operations
     */
    public void test_concurrentOperations() throws Exception {
        final TestTransformer transformer = new TestTransformer("concurrentTransformer");
        final int threadCount = 5;
        final int operationsPerThread = 10;

        endLatch.await(5, TimeUnit.SECONDS);

        assertEquals(2, successCount.get());
    }

    /**
     * Test concurrent operations on different fields
     */
    public void test_concurrentOperations() throws Exception {
        final int threadCount = 10;
        final int operationsPerThread = 100;
        final CountDownLatch startLatch = new CountDownLatch(1);