* is complete. It does so by using daemon threads and adding a shutdown hook to wait for their
   * completion.
   *
   * <p>This is mainly for fixed thread pools. See {@link Executors#newFixedThreadPool(int)}.
   *
   * @param executor the executor to modify to make sure it exits when the application is finished

        jvmMemoryNonHeapObj.used = mem.getNonHeapUsed().getBytes();
        jvmMemoryNonHeapObj.committed = mem.getNonHeapCommitted().getBytes();
        final List<BufferPool> bufferPools = jvmStats.getBufferPools();
        jvmObj.pools = bufferPools.stream().map(p -> {
            final JvmPoolObj jvmPoolObj = new JvmPoolObj();
            jvmPoolObj.key = p.getName();
            jvmPoolObj.count = p.getCount();