org.eclipse.jetty.util.thread

## Class ShutdownThread

- java.lang.Object
- - java.lang.Thread
  - - org.eclipse.jetty.util.thread.ShutdownThread

- All Implemented Interfaces:
    Runnable

      public class ShutdownThread
      extends Thread

  ShutdownThread is a shutdown hook thread implemented as singleton that maintains a list of lifecycle instances that are registered with it and provides ability to stop these lifecycles upon shutdown of the Java Virtual Machine

- - ### Nested Class Summary

    - ### Nested classes/interfaces inherited from class java.lang.Thread

      `Thread.State, Thread.UncaughtExceptionHandler`

  - ### Field Summary

    - ### Fields inherited from class java.lang.Thread

      `MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY`

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `static void` | `deregister(LifeCycle lifeCycle)`
    `static ShutdownThread` | `getInstance()` Returns the instance of the singleton
    `static void` | `register(int index, LifeCycle... lifeCycles)`
    `static void` | `register(LifeCycle... lifeCycles)`
    `void` | `run()`

    - ### Methods inherited from class java.lang.Thread

      `activeCount, checkAccess, clone, countStackFrames, currentThread, destroy, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, start, stop, stop, suspend, toString, yield`

    - ### Methods inherited from class java.lang.Object

      `equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

- - ### Method Detail

    - #### getInstance

          public static ShutdownThread getInstance()

      Returns the instance of the singleton
      Returns:
        the singleton instance of the `ShutdownThread`

    - #### register

          public static void register(LifeCycle... lifeCycles)

    - #### register

          public static void register(int index,
                      LifeCycle... lifeCycles)

    - #### deregister

          public static void deregister(LifeCycle lifeCycle)

    - #### run

          public void run()

      Specified by:
        `run` in interface `Runnable`
      Overrides:
        `run` in class `Thread`

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