Examples with ValueHolder org.jowidgets.util.ValueHolder used on opensource projects

Example 6 with ValueHolder

use of org.jowidgets.util.ValueHolder in project jo-client-platform by jo-source.

the class ServiceProviderTest method testConcurrentServiceRegistration.

@Test
public void testConcurrentServiceRegistration() {
    ServiceProvider.registerServiceProviderHolder(SERVICE_PROVIDER_HOLDER_1);
    ServiceProvider.registerServiceProviderHolder(SERVICE_PROVIDER_HOLDER_2);
    SERVICE_PROVIDER_HOLDER_1.lock();
    SERVICE_PROVIDER_HOLDER_2.lock();
    final ValueHolder<ConcurrentModificationException> exceptionHolder = new ValueHolder<ConcurrentModificationException>();
    final CountDownLatch latch1 = new CountDownLatch(1);
    final CountDownLatch latch2 = new CountDownLatch(1);
    new Thread(new Runnable() {

        @Override
        public void run() {
            try {
                latch1.countDown();
                ServiceProvider.getService(SERVICE_ID_1);
            } catch (final ConcurrentModificationException exception) {
                exceptionHolder.set(exception);
            } finally {
                latch2.countDown();
            }
        }
    }).start();
    try {
        latch1.await();
    } catch (final InterruptedException e) {
        throw new RuntimeException(e);
    }
    ServiceProvider.registerServiceProviderHolder(Mockito.mock(IServiceProviderHolder.class));
    SERVICE_PROVIDER_HOLDER_1.unlock();
    SERVICE_PROVIDER_HOLDER_2.unlock();
    try {
        latch2.await();
    } catch (final InterruptedException e) {
        throw new RuntimeException(e);
    }
    Assert.assertNull(exceptionHolder.get());
}