@Test
  public void testQueryGetWithClear() throws Exception {
    // create region
    createCacheForVM0();

    // Do puts to region
    putSevenEntries();

    // call NetSearchMessage.doGet() after region.clear()
    concurrentNetSearchGetAndClear();

    // verify that region is not destroyed
    verifyRegionNotDestroyed();
  }
The Clear operation during a NetSearchMessage.doGet() in progress can cause DiskAccessException
by accessing cleared oplogs and eventually destroy region. The Test verifies that fix prevents
this.

<p>
Test must be DistributedTest because it requires ClusterDistributionManager.
geode-core/src/distributedTest/java/org/apache/geode/internal/cache/ClearDuringNetSearchOplogRegressionTest.java