private static void closeCache() throws Exception {
    try {
      if (!cache.isClosed()) {
        cache.close();
      }
    } finally {
      InternalDistributedSystem ids = InternalDistributedSystem.getAnyInstance();
      if (ids != null) {
        ids.disconnect();
      }
      cache = null;
      tblName = null;
    }
  }
Return file as string and then modify the string accordingly **
geode-core/src/integrationTest/java/org/apache/geode/internal/jta/BlockingTimeOutJUnitTest.java