public static void closeAtShutdown(Closeable closeable) {
    if (SHUTDOWN_HOOK.addCloseable(closeable)) {
      try {
        Runtime.getRuntime().addShutdownHook(new Thread(SHUTDOWN_HOOK, "OryxShutdownHookThread"));
      } catch (IllegalStateException ise) {
        log.warn("Can't close {} at shutdown since shutdown is in progress", closeable);
      }
    }
  }
public static void closeAtShutdown(Closeable closeable) {
    if (SHUTDOWN_HOOK.addCloseable(closeable)) {
      try {
        Runtime.getRuntime().addShutdownHook(new Thread(SHUTDOWN_HOOK, "OryxShutdownHookThread"));
      } catch (IllegalStateException ise) {
        log.warn("Can't close {} at shutdown since shutdown is in progress", closeable);
      }
    }
  }
public static void closeAtShutdown ( Closeable closeable ) { if ( SHUTDOWN_HOOK . addCloseable ( closeable ) ) { try { Runtime . getRuntime ( ) . addShutdownHook ( new Thread ( SHUTDOWN_HOOK , "OryxShutdownHookThread" ) ) ; } catch ( IllegalStateException ise ) { log . warn ( "Can't close {} at shutdown since shutdown is in progress" , closeable ) ; } } }
Adds a shutdown hook that tries to call {@link Closeable#close()} on the given argument
at JVM shutdown.

@param closeable thing to close
Adds a shutdown hook that tries to call { @link Closeable#close () } on the given argument at JVM shutdown .