@Override
          public void run() {
            Region rgn1a = getCache().getRegion(rgnName1);
            assertNotNull(rgn1a);
            assertEquals("value2", rgn1a.getEntry("key").getValue());
            Region rgn2a = getCache().getRegion(rgnName2);
            assertNotNull(rgn2a);
            assertEquals("value2", rgn2a.getEntry("key").getValue());
          }
Test the internal callbacks used for what else... testing
geode-core/src/distributedTest/java/org/apache/geode/cache30/TXDistributedDUnitTest.java