HippoServiceRegistry doesn't control individual failures for trackerHolders

When a module is registered as a ServiceTracker, it never gets executed if another ServiceTracker of the same service, fails before.

This is the code where there is no try-catch inside the for loop, so if any trackerHolder fails, the following trackerHolders won't be executed.

for (final ServiceHolder<ProxiedServiceTracker> trackerHolder : trackersList) {
    Thread.currentThread().setContextClassLoader(trackerHolder.getClassLoader());
    trackerHolder.getServiceObject().serviceRegistered(serviceHolder);
}