public static void verifyConnectionToServerFailed() throws Exception {
    assertTrue("Higher version Client connected successfully to Server",
        ConnectionFactoryImpl.testFailedConnectionToServer == true);
  }
Verify that server responds to a higher versioned client.
geode-core/src/distributedTest/java/org/apache/geode/internal/cache/tier/sockets/BackwardCompatibilityHigherVersionClientDUnitTest.java