@Override
  public Properties getDistributedSystemProperties() {
    Properties result = super.getDistributedSystemProperties();
    result.put(ConfigurationProperties.SERIALIZABLE_OBJECT_FILTER,
        "org.apache.geode.internal.cache.**" + ";org.apache.geode.test.dunit.**"
            + ";org.apache.geode.test.junit.**"
            + ";org.apache.geode.internal.cache.execute.data.CustId"
            + ";org.apache.geode.internal.cache.execute.data.Customer");
    return result;
  }
test client initiated transactions with concurrency checks enabled.
geode-core/src/distributedTest/java/org/apache/geode/internal/cache/ClientServerTransactionCCEDUnitTest.java