@Override
  public final void preTearDown() throws Exception {
    Host host = Host.getHost(0);
    VM vm0 = host.getVM(0);
    try {
      vm0.invoke(MaxPoolSizeDUnitTest::destroyTable);
    } finally {
      disconnectAllFromDS();
    }
  }
Return file as string and then modify the string accordingly **
geode-core/src/distributedTest/java/org/apache/geode/internal/jta/dunit/MaxPoolSizeDUnitTest.java