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https://issues.apache.org/jira/browse/NETBEANS-5177?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17261892#comment-17261892
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Matthias Bläsing commented on NETBEANS-5177:
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To me this looks like a misconfigured system (yes maybe even the base
configuration is broken). I see in the log many entries like:
{{Caused: java.util.zip.ZipException: /Applications/NetBeans/Apache NetBeans
12.2.app/Contents/Resources/NetBeans/netbeans/platform/modules/org-netbeans-modules-uihandler.jar
(Too many open files)}}
This varies with files, but when this point is reached, I would not trust the
system much more. The system assumes, that files can be freely opened and in
most cases I saw they are jars of the netbeans system, so there is no reason to
apply limits.
Maybe this helps to track it down? A quick google showed some entries from the
past where people reported similar problems in the past.
One thing that might be interesting (just an idea): What type of projects are
opened? 12.2 has a bug, that causes an excessive number of subprocesses to be
spawned when the LSP support (typescript/cpplite projects) is used.
> Crash: cannot get exclusive access to uihandler.properties
> ----------------------------------------------------------
>
> Key: NETBEANS-5177
> URL: https://issues.apache.org/jira/browse/NETBEANS-5177
> Project: NetBeans
> Issue Type: Bug
> Affects Versions: 12.2
> Reporter: Ulrich Mayring
> Priority: Blocker
> Attachments: messages.log, sc.png, screenshot2.png, thread_dump.rtf
>
>
> I experienced a number of total freezes after installing NB 12.2 (have been
> using 12.0 before), but could not get an error message of any sort, since NB
> was completely unresponsive to keystrokes or mouse. This changed today, I got
> an error popup, which I attach. NB was again totally unresponsive, but I
> could make a screenshot of the popup message.
> The black shadow around the error dialog actually is tens or hundreds of the
> same popup windows behind the first one. They keep piling up at CPU speed
> until the app runs out of memory or is killed. For a while I could close a
> few of them, but they kept coming up faster than I could click.
> The file in question (see screenshot) looks normal to me. It has the correct
> owner and permissions and its content is this:
> count=1000
> MTTF=71985
> uihandler.preferences.writable.check=1608633016127
> The crash happened directly after starting the IDE, while it was reading in
> the last project I worked on. No user interaction was involved.
> Fedora 29 / KDE.
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