You are viewing a plain text version of this content. The canonical link for it is here.
Posted to issues@commons.apache.org by "Pascal Schumacher (JIRA)" <ji...@apache.org> on 2018/04/29 09:12:00 UTC
[jira] [Updated] (IO-535) Thread bug in
FileAlterationMonitor#stop(int)
[ https://issues.apache.org/jira/browse/IO-535?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Pascal Schumacher updated IO-535:
---------------------------------
Summary: Thread bug in FileAlterationMonitor#stop(int) (was: Thread bug in FileAlterationMonitor)
> Thread bug in FileAlterationMonitor#stop(int)
> ---------------------------------------------
>
> Key: IO-535
> URL: https://issues.apache.org/jira/browse/IO-535
> Project: Commons IO
> Issue Type: Bug
> Components: Utilities
> Affects Versions: 2.5
> Environment: Components managed by a DI Framework
> Reporter: Anthony RAYMOND
> Priority: Critical
> Labels: easyfix, patch, performance
> Original Estimate: 5m
> Remaining Estimate: 5m
>
> The thread in FileAlterationMonitor wasn't stopped by the `stop(int)` method, which forbid application to shutdown until all `Thread` are exited (if FileAlterationMonitor is part of a DI managed component).
> This behavior conflict with the method javadoc `@param stopInterval the amount of time in milliseconds to wait for the thread to finish.`
> h5. Simple example to understand
> Bad behavior
> {code:java}
> Thread t = new Thread(() -> {
> try {
> Thread.sleep(500000);
> } catch (final InterruptedException e) {
> }
> });
> t.start();
> t.join(50);
> // Ok, we reach this point until 500000ms are elapsed, but the thread is still alive.
> // because Thread#join(int) does not kill the thread. And the thread remains alive.
> {code}
> Good behavior
> {code:java}
> Thread t = new Thread(() -> {
> try {
> Thread.sleep(500000);
> } catch (final InterruptedException e) {
> }
> });
> t.start();
> t.join(50);
> t.interupt();
> // Thread is exited
> {code}
> In this case, we waited the given time BEFORE exiting the `Thread`, as described in the javadoc, and the `Thread` is now finished and killed.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)