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Mike Ryan edited comment on NETBEANS-5177 at 1/9/21, 3:27 PM: -------------------------------------------------------------- I'm seeing the same thing on macOS BigSur, but it was also happening to me on Catalina as well. I never ran into this problem in 12.1 and my current workaround is to just use 12.1. I posted the following in the users mailing list. Hopefully this helps. Please let me know if there's other info I could provide that will help debug this. The windows I saw had messages like : • Folder org-netbeans-api-project-libraries already exists in /Users/blah/Library/Application Support/NetBeans/ 12.2/config • Cannot get exclusive access to /Users/blah/Library/Application Support/NetBeans/12.2/build.properties@bad1856d:5a70225a (probably opened for reading) Here's the thread dump. As I said on the mailing list, my terminal cut off the full dump so I only have the tail end of it. [^thread_dump.rtf] was (Author: mrr39): I'm seeing the same thing on macOS BigSur, but it was also happening to me on Catalina as well. I never ran into this problem in 12.1 and my current workaround is to just use 12.1. I posted the following in the users mailing list. Hopefully this helps. Please let me know if there's other info I could provide that will help debug this. The windows I saw had messages like : • Folder org-netbeans-api-project-libraries already exists in /Users/blah/Library/Application Support/NetBeans/ 12.2/config • Cannot get exclusive access to /Users/blah/Library/Application Support/NetBeans/12.2/build.properties@bad1856d:5a70225a (probably opened for reading) Here's the thread dump. As I said on the mailing list, my terminal cut off the full dump so I only have the tail end of it. > 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: 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. -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@netbeans.apache.org For additional commands, e-mail: commits-h...@netbeans.apache.org For further information about the NetBeans mailing lists, visit: https://cwiki.apache.org/confluence/display/NETBEANS/Mailing+lists