@Before
  public void setUp() throws Exception {
    vm1 = getHost(0).getVM(1);
    vm2 = getHost(0).getVM(2);

    uniqueName = getClass().getSimpleName() + "_" + testName.getMethodName();

    vm1.invoke(() -> createPartitionedRegion());
    vm2.invoke(() -> createPartitionedRegion());

    vm1.invoke(this::doPuts);
  }
Iterating over Region.entrySet() should not return null for PartitionedRegion.

<p>
TRAC #45164: Iterating on Region.entrySet() can return null on partitioned region
geode-core/src/distributedTest/java/org/apache/geode/internal/cache/PREntrySetIteratorRegressionTest.java