@Override
  protected void preTearDownDurableClientTestBase() {
    durableClientVM.invoke(() -> CacheServerTestUtil.setClientCrash(Boolean.FALSE));
  }
Class <code>DurableClientCrashDUnitTest</code> tests durable client functionality when clients
crash.

@since GemFire 5.2
geode-cq/src/distributedTest/java/org/apache/geode/internal/cache/tier/sockets/DurableClientCrashDUnitTest.java