Fix test failures

[dserfe]

This PR is to fix a flaky test com.dianping.cat.message.context.MessageIdFactoryTest#testDefaultDomainInParallel in module cat-client, we found the problem when using the latest version.

Reproduce test failures

• Run the following commands to reproduce the test failures:

mvn  edu.illinois:nondex-maven-plugin:2.1.1:nondex  -pl cat-client -Dtest=com.dianping.cat.message.context.MessageIdFactoryTest#testDefaultDomainInParallel

• Then we got the following error:

MessageIdFactoryTest.testDefaultDomainInParallel:108 Not all threads completed in time. expected:<123400> but was:<12070>

Fix

In order to avoid not all threads not finished before the assertions, the fix is to first wait the jobs to be finished pool.awaitTermination(1, TimeUnit.HOURS); , after that if al threads are done, then go to the following assertions.