Greetings, I've mentioned earlier in one of the Netbeans mailing lists about Netbeans 12.2 freezing. Well, it throws up an annoying series of modal windows each of which states that we have a java.io.FileNotFoundException with a message giving me the name of the file with the additional text of "(too many open files)".
This also vomits out a org.openide.filesystems.FileAlreadyLockedException exception as well. When Netbeans freezes up like that, you cannot attach jconsole to that process. Since Netbeans was acting up recently (as in I couldn't run for 15 minutes without such a freeze), I immediately ran jconsole to monitor what was going on when I launched Netbeans. According to my jconsole MBeans window, in the java.lang.OperatingSystem.OpenFileDescriptorCount attribute, I had over 12K open file descriptors. (12529 appears to be the last value I have been able to get.) That tells me that somewhere in the delta between Netbeans 12.1 (where I NEVER saw this problem) and Netbeans 12.2 (where I am playing Russian roulette with my productivity by using it at work) someone is not closing a file after using it and assuming that the finalizer will close it for them. That would be a very bad assumption, independent of the OS. As it so happens, my work machine's Netbeans 12.2 instance just locked up while I was writing this. Said work machine is running macOS 11.2.2 and Netbeans is running OpenJDK 64- bit Server VM version 15+36-1562. (Actually, my work machine locked up twice while writing this on my non-work machine [which is not, and never will be, a Mac].) -- Mark A. Flacy mfl...@verizon.net --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@netbeans.apache.org For additional commands, e-mail: users-h...@netbeans.apache.org For further information about the NetBeans mailing lists, visit: https://cwiki.apache.org/confluence/display/NETBEANS/Mailing+lists
