private void waitForLongWrapperSerializerRegistration() {
    // see the comments in "get" CacheSerializableRunnable in testNoDataSerializer()
    final int savVal = InternalDataSerializer.GetMarker.WAIT_MS;
    InternalDataSerializer.GetMarker.WAIT_MS = 1;
    try {
      await("DataSerializer with id 121 was never registered")
          .until(() -> InternalDataSerializer.getSerializer((byte) 121) != null);
    } finally {
      InternalDataSerializer.GetMarker.WAIT_MS = savVal;
    }
  }
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