private void flushDiskStore(String name) {
    if (getRootRegion() != null && getRootRegion().getSubregion(name) != null) {
      DiskStoreImpl diskStore =
          ((DiskRecoveryStore) getRootRegion().getSubregion(name)).getDiskStore();
      if (diskStore != null) {
        diskStore.flush();
      }
    }
  }
Tests what happens when one VM attempts to read an object for which it does not have a
registered <code>DataSerializer</code>.

@since GemFire 3.5
geode-dunit/src/main/java/org/apache/geode/cache30/MultiVMRegionTestCase.java