Tomcat 10.1.19 · org.apache.tomcat.util.threads.VirtualThreadExecutor

Modifier and Type	Field and Description
private final JreCompat	jreCompat
private CountDownLatch	shutdown
private static final StringManager	sm
private Object	threadBuilder

Access	Constructor and Description
public	VirtualThreadExecutor(String namePrefix)

Method Summary

Modifier and Type	Method and Description
public boolean	awaitTermination(long the maximum time to wait timeout, TimeUnit the time unit of the timeout argument unit) Implements java.util.concurrent.ExecutorService.awaitTermination. Blocks until all tasks have completed execution after a shutdown request, or the timeout occurs, or the current thread is interrupted, whichever happens first.
public void	execute(Runnable the runnable task command) Implements java.util.concurrent.Executor.execute. Executes the given command at some time in the future.
public boolean	isShutdown() Implements java.util.concurrent.ExecutorService.isShutdown. Returns `true` if this executor has been shut down.
public boolean	isTerminated() Implements java.util.concurrent.ExecutorService.isTerminated. Returns `true` if all tasks have completed following shut down.
public void	shutdown() Implements java.util.concurrent.ExecutorService.shutdown. Initiates an orderly shutdown in which previously submitted tasks are executed, but no new tasks will be accepted.
public List<Runnable>	shutdownNow() Implements java.util.concurrent.ExecutorService.shutdownNow. Attempts to stop all actively executing tasks, halts the processing of waiting tasks, and returns a list of the tasks that were awaiting execution.

Inherited from java.util.concurrent.AbstractExecutorService:: invokeAll invokeAll invokeAny invokeAny newTaskFor newTaskFor submit submit submit

jreCompat	back to summary
private final JreCompat jreCompat

shutdown	back to summary
private CountDownLatch shutdown

sm	back to summary
private static final StringManager sm

threadBuilder	back to summary
private Object threadBuilder

VirtualThreadExecutor	back to summary
public VirtualThreadExecutor(String namePrefix)

Method Detail

awaitTermination back to summary

awaitTermination	back to summary
public boolean awaitTermination(long timeout, TimeUnit unit) throws InterruptedException Implements java.util.concurrent.ExecutorService.awaitTermination. Doc from java.util.concurrent.ExecutorService.awaitTermination. Blocks until all tasks have completed execution after a shutdown request, or the timeout occurs, or the current thread is interrupted, whichever happens first. The VirtualThreadExecutor does not track in-progress tasks so calling this method is effectively waiting for `shutdown()` to be called. Parameters timeout:long the maximum time to wait unit:TimeUnit the time unit of the timeout argument Returns:boolean `true` if this executor terminated and `false` if the timeout elapsed before termination Annotations @Override Exceptions InterruptedException: if interrupted while waiting

public boolean awaitTermination(long timeout, TimeUnit unit) throws InterruptedException

Implements java.util.concurrent.ExecutorService.awaitTermination.

Doc from java.util.concurrent.ExecutorService.awaitTermination.

Blocks until all tasks have completed execution after a shutdown request, or the timeout occurs, or the current thread is interrupted, whichever happens first.

The VirtualThreadExecutor does not track in-progress tasks so calling this method is effectively waiting for shutdown() to be called.

Parameters

timeout:long: the maximum time to wait
unit:TimeUnit: the time unit of the timeout argument

Returns:boolean

true if this executor terminated and false if the timeout elapsed before termination

Annotations

@Override

Exceptions

InterruptedException:: if interrupted while waiting

execute back to summary

execute	back to summary
public void execute(Runnable command) Implements java.util.concurrent.Executor.execute. Doc from java.util.concurrent.Executor.execute. Executes the given command at some time in the future. The command may execute in a new thread, in a pooled thread, or in the calling thread, at the discretion of the `Executor` implementation. Parameters command:Runnable the runnable task Annotations @Override

public void execute(Runnable command)

Implements java.util.concurrent.Executor.execute.

Doc from java.util.concurrent.Executor.execute.

Executes the given command at some time in the future. The command may execute in a new thread, in a pooled thread, or in the calling thread, at the discretion of the Executor implementation.

Parameters

command:Runnable: the runnable task

Annotations

@Override

isShutdown back to summary

isShutdown	back to summary
public boolean isShutdown() Implements java.util.concurrent.ExecutorService.isShutdown. Doc from java.util.concurrent.ExecutorService.isShutdown. Returns `true` if this executor has been shut down. Returns:boolean `true` if this executor has been shut down Annotations @Override

public boolean isShutdown()

Implements java.util.concurrent.ExecutorService.isShutdown.

Doc from java.util.concurrent.ExecutorService.isShutdown.

Returns true if this executor has been shut down.

Returns:boolean

true if this executor has been shut down

Annotations

@Override

isTerminated back to summary

isTerminated	back to summary
public boolean isTerminated() Implements java.util.concurrent.ExecutorService.isTerminated. Doc from java.util.concurrent.ExecutorService.isTerminated. Returns `true` if all tasks have completed following shut down. Note that `isTerminated` is never `true` unless either `shutdown` or `shutdownNow` was called first. The VirtualThreadExecutor does not track in-progress tasks so calling this method is equivalent to calling `isShutdown()`. Returns:boolean `true` if all tasks have completed following shut down Annotations @Override

public boolean isTerminated()

Implements java.util.concurrent.ExecutorService.isTerminated.

Doc from java.util.concurrent.ExecutorService.isTerminated.

Returns true if all tasks have completed following shut down. Note that isTerminated is never true unless either shutdown or shutdownNow was called first.

The VirtualThreadExecutor does not track in-progress tasks so calling this method is equivalent to calling isShutdown().

Returns:boolean

true if all tasks have completed following shut down

Annotations

@Override

shutdown back to summary

shutdown	back to summary
public void shutdown() Implements java.util.concurrent.ExecutorService.shutdown. Doc from java.util.concurrent.ExecutorService.shutdown. Initiates an orderly shutdown in which previously submitted tasks are executed, but no new tasks will be accepted. Invocation has no additional effect if already shut down. This method does not wait for previously submitted tasks to complete execution. Use `awaitTermination` to do that. Annotations @Override

public void shutdown()

Implements java.util.concurrent.ExecutorService.shutdown.

Doc from java.util.concurrent.ExecutorService.shutdown.

Initiates an orderly shutdown in which previously submitted tasks are executed, but no new tasks will be accepted. Invocation has no additional effect if already shut down.

This method does not wait for previously submitted tasks to complete execution. Use awaitTermination to do that.

Annotations

@Override

shutdownNow back to summary

shutdownNow	back to summary
public List<Runnable> shutdownNow() Implements java.util.concurrent.ExecutorService.shutdownNow. Doc from java.util.concurrent.ExecutorService.shutdownNow. Attempts to stop all actively executing tasks, halts the processing of waiting tasks, and returns a list of the tasks that were awaiting execution. This method does not wait for actively executing tasks to terminate. Use `awaitTermination` to do that. There are no guarantees beyond best-effort attempts to stop processing actively executing tasks. For example, typical implementations will cancel via `Thread#interrupt`, so any task that fails to respond to interrupts may never terminate. The VirtualThreadExecutor does not track in-progress tasks so calling this method is equivalent to calling `shutdown()`. Returns:List<Runnable> list of tasks that never commenced execution Annotations @Override

public List<Runnable> shutdownNow()

Implements java.util.concurrent.ExecutorService.shutdownNow.

Doc from java.util.concurrent.ExecutorService.shutdownNow.

Attempts to stop all actively executing tasks, halts the processing of waiting tasks, and returns a list of the tasks that were awaiting execution.

This method does not wait for actively executing tasks to terminate. Use awaitTermination to do that.

There are no guarantees beyond best-effort attempts to stop processing actively executing tasks. For example, typical implementations will cancel via Thread#interrupt, so any task that fails to respond to interrupts may never terminate.

The VirtualThreadExecutor does not track in-progress tasks so calling this method is equivalent to calling shutdown().

Returns:List<Runnable>

list of tasks that never commenced execution

Annotations

@Override

public Class VirtualThreadExecutor

Field Summary

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Field Detail

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