@Override
        public void handleExpiry(long stuckTime, Map<Long, ThreadInfo> map) {
          // no-op
        }
If a thread is blocked by another thread we want to see the other thread's
stack in a "stuck thread" report. This test creates such a thread and
generates a "stuck thread" report to make sure the report on the other thread
is included.
geode-core/src/test/java/org/apache/geode/internal/monitoring/executor/AbstractExecutorGroupJUnitTest.java