[ https://issues.apache.org/jira/browse/NETBEANS-5169?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
TLX updated NETBEANS-5169: -------------------------- Description: For several versions NetBeans has been getting stuck with a message "Checking for external changes - Suspended" in the status bar and consuming a lot of CPU (which is noisy on my development notebook). I used VisualVM to find out what's going on, and this is what I found out: The high CPU consumption is caused by a thread named "Active Reference Queue Daemon". This thread keeps checking thousands or even millions of events all the time. Most of the actual CPU consumption happens in methods java.io.File.isDirectory(), java.io.File.canWrite(), java.ioFile.lastModified(), java.io.File.exists(), and java.io.File.isFile() called by the mentioned thread. What I *think* is *supposed* to happen is that NetBeans monitors files that are relevant for the project at hand for modifications. What *actually* happens is that this Queue is filled with thousands of files from the system Temp folder, many of which seem completely unrelated to the project and to NetBeans. Why is NetBeans monitoring those? Monitoring them due to a bug wouldn't be a big problem if they remained unmodified, I presume. However, it seems some of these files are continuously modified by other applications on my dev system, keeping NetBeans busy with checking them all the time. It is worth noting that only the NetBeans editor is running at the time of the problem. No service, no Java process, no debugger, profiler, or anything else is running or attached to anything. Monitoring thousands of files in the Temp folder seems totally useless to me. --------------------- As an appendix I'll provide the following: # Two examples of typical stack traces the mentioned daemon thread is busy in. # An impression what the queue looks like (taken from a heap dump). The stack traces: {code:java} "Active Reference Queue Daemon" daemon prio=1 tid=13 RUNNABLE at java.io.WinNTFileSystem.getBooleanAttributes(Native Method) at java.io.File.isDirectory(File.java:849) at org.netbeans.modules.masterfs.filebasedfs.utils.FileInfo.isDirectory(FileInfo.java:75) at org.netbeans.modules.masterfs.filebasedfs.naming.NamingFactory.fromFile(NamingFactory.java:103) local variable: org.netbeans.modules.masterfs.filebasedfs.naming.FolderName#9847 local variable: org.netbeans.modules.masterfs.filebasedfs.utils.FileInfo#2 local variable: java.util.ArrayList#315448 local variable: java.util.ArrayList$Itr#4 at org.netbeans.modules.masterfs.filebasedfs.naming.NamingFactory.fromFile(NamingFactory.java:84) at org.netbeans.modules.masterfs.filebasedfs.children.ChildrenSupport$2IOJob.run(ChildrenSupport.java:249) local variable: java.io.File[]#13 local variable: org.netbeans.modules.masterfs.filebasedfs.children.ChildrenSupport$2IOJob#2 at org.netbeans.modules.masterfs.filebasedfs.fileobjects.FolderObj.refreshImpl(FolderObj.java:442) local variable: org.openide.util.Mutex$Privileged#2 local variable: org.netbeans.modules.masterfs.filebasedfs.fileobjects.FolderObj$FolderChildrenCache#7559 local variable: java.lang.Runnable[]#3 at org.netbeans.modules.masterfs.filebasedfs.fileobjects.BaseFileObj.refresh(BaseFileObj.java:868) local variable: org.netbeans.modules.masterfs.filebasedfs.Statistics$StopWatch#4 at org.netbeans.modules.masterfs.filebasedfs.fileobjects.FolderObj.refresh(FolderObj.java:537) at org.openide.filesystems.FileObject.refresh(FileObject.java:1194) at org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObjectFactory$AsyncRefreshAtomicAction.run(FileObjectFactory.java:886) at org.openide.filesystems.EventControl.runAtomicAction(EventControl.java:102) local variable: org.openide.filesystems.EventControl#3 at org.openide.filesystems.FileSystem.runAtomicAction(FileSystem.java:494) at org.openide.filesystems.FileUtil.runAtomicAction(FileUtil.java:397) at org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObjectFactory.refreshFromGetter(FileObjectFactory.java:894) at org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObjectFactory.issueIfExist(FileObjectFactory.java:301) local variable: org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObjectFactory$Caller#6 local variable: org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObj#3169 local variable: java.io.File#74439 local variable: java.lang.Integer#140750 at org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObjectFactory.getFileObject(FileObjectFactory.java:207) at org.netbeans.modules.masterfs.filebasedfs.fileobjects.FolderObj.computeChildren(FolderObj.java:168) local variable: org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObjectFactory#1 local variable: org.netbeans.modules.masterfs.filebasedfs.naming.FileName#44684 local variable: java.util.LinkedHashMap#14210 local variable: java.util.HashMap$KeyIterator#2 local variable: org.netbeans.modules.masterfs.filebasedfs.utils.FileInfo#4 at org.netbeans.modules.masterfs.filebasedfs.fileobjects.FolderObj.noFolderListeners(FolderObj.java:117) at org.netbeans.modules.masterfs.filebasedfs.fileobjects.BaseFileObj.removeFileChangeListener(BaseFileObj.java:538) at sun.reflect.GeneratedMethodAccessor593.invoke(<unknown string>) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.openide.util.WeakListenerImpl$ListenerReference.run(WeakListenerImpl.java:619) local variable: class org.netbeans.modules.masterfs.filebasedfs.fileobjects.FolderObj local variable: org.openide.util.WeakListenerImpl$ProxyListener#44981 local variable: org.netbeans.modules.masterfs.filebasedfs.fileobjects.FolderObj#7540 local variable: java.lang.String#1541634 local variable: java.lang.reflect.Method#8031 at org.openide.util.lookup.implspi.ActiveQueue$Daemon.run(ActiveQueue.java:123) local variable: org.openide.util.WeakListenerImpl$ListenerReference#123808 {code} {code:java} "Active Reference Queue Daemon" daemon prio=1 tid=13 RUNNABLE at java.io.WinNTFileSystem.getBooleanAttributes(Native Method) at java.io.File.isFile(File.java:882) at org.netbeans.modules.masterfs.filebasedfs.fileobjects.BaseFileObj.refresh(BaseFileObj.java:872) local variable: org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObj#7086 local variable: org.netbeans.modules.masterfs.filebasedfs.Statistics$StopWatch#4 at org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObj.refresh(FileObj.java:355) at org.netbeans.modules.masterfs.filebasedfs.fileobjects.FolderObj.refreshImpl(FolderObj.java:459) local variable: java.util.IdentityHashMap#258 local variable: java.util.HashMap$KeyIterator#1 at org.netbeans.modules.masterfs.filebasedfs.fileobjects.BaseFileObj.refresh(BaseFileObj.java:868) local variable: org.netbeans.modules.masterfs.filebasedfs.Statistics$StopWatch#5 at org.netbeans.modules.masterfs.filebasedfs.fileobjects.FolderObj.refresh(FolderObj.java:537) at org.openide.filesystems.FileObject.refresh(FileObject.java:1194) at org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObjectFactory$AsyncRefreshAtomicAction.run(FileObjectFactory.java:886) at org.openide.filesystems.EventControl.runAtomicAction(EventControl.java:102) local variable: org.openide.filesystems.EventControl#3 at org.openide.filesystems.FileSystem.runAtomicAction(FileSystem.java:494) at org.openide.filesystems.FileUtil.runAtomicAction(FileUtil.java:397) at org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObjectFactory.refreshFromGetter(FileObjectFactory.java:894) at org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObjectFactory.issueIfExist(FileObjectFactory.java:301) local variable: org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObjectFactory$Caller#6 local variable: org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObj#3904 local variable: java.io.File#60893 local variable: java.lang.Integer#147047 at org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObjectFactory.getFileObject(FileObjectFactory.java:207) at org.netbeans.modules.masterfs.filebasedfs.fileobjects.FolderObj.computeChildren(FolderObj.java:168) local variable: org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObjectFactory#1 local variable: org.netbeans.modules.masterfs.filebasedfs.naming.FileName#48075 local variable: java.util.LinkedHashMap#14132 local variable: java.util.HashMap$KeyIterator#2 local variable: org.netbeans.modules.masterfs.filebasedfs.utils.FileInfo#3 at org.netbeans.modules.masterfs.filebasedfs.fileobjects.FolderObj.noFolderListeners(FolderObj.java:117) at org.netbeans.modules.masterfs.filebasedfs.fileobjects.BaseFileObj.removeFileChangeListener(BaseFileObj.java:538) at sun.reflect.GeneratedMethodAccessor593.invoke(<unknown string>) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.openide.util.WeakListenerImpl$ListenerReference.run(WeakListenerImpl.java:619) local variable: class org.netbeans.modules.masterfs.filebasedfs.fileobjects.FolderObj local variable: org.openide.util.WeakListenerImpl$ProxyListener#44760 local variable: org.netbeans.modules.masterfs.filebasedfs.fileobjects.FolderObj#7533 local variable: java.lang.reflect.Method#7669 local variable: java.lang.String#1457795 at org.openide.util.lookup.implspi.ActiveQueue$Daemon.run(ActiveQueue.java:123) local variable: org.openide.util.WeakListenerImpl$ListenerReference#187634 {code} The screenshot: !image-2020-12-18-21-25-11-633.png! was: For several versions NetBeans has been getting stuck with a message "Checking for external changes" in the status bar and consuming a lot of CPU (which is noisy on my development notebook). I used VisualVM to find out what's going on, and this is what I found out: The high CPU consumption is caused by a thread named "Active Reference Queue Daemon". This thread keeps checking thousands or even millions of events all the time. Most of the actual CPU consumption happens in methods java.io.File.isDirectory(), java.io.File.canWrite(), java.ioFile.lastModified(), java.io.File.exists(), and java.io.File.isFile() called by the mentioned thread. What I *think* is *supposed* to happen is that NetBeans monitors files that are relevant for the project at hand for modifications. What *actually* happens is that this Queue is filled with thousands of files from the system Temp folder, many of which seem completely unrelated to the project and to NetBeans. Why is NetBeans monitoring those? Monitoring them due to a bug wouldn't be a big problem if they remained unmodified, I presume. However, it seems some of these files are continuously modified by other applications on my dev system, keeping NetBeans busy with checking them all the time. It is worth noting that only the NetBeans editor is running at the time of the problem. No service, no Java process, no debugger, profiler, or anything else is running or attached to anything. Monitoring thousands of files in the Temp folder seems totally useless to me. --------------------- As an appendix I'll provide the following: # Two examples of typical stack traces the mentioned daemon thread is busy in. # An impression what the queue looks like (taken from a heap dump). The stack traces: {code:java} "Active Reference Queue Daemon" daemon prio=1 tid=13 RUNNABLE at java.io.WinNTFileSystem.getBooleanAttributes(Native Method) at java.io.File.isDirectory(File.java:849) at org.netbeans.modules.masterfs.filebasedfs.utils.FileInfo.isDirectory(FileInfo.java:75) at org.netbeans.modules.masterfs.filebasedfs.naming.NamingFactory.fromFile(NamingFactory.java:103) local variable: org.netbeans.modules.masterfs.filebasedfs.naming.FolderName#9847 local variable: org.netbeans.modules.masterfs.filebasedfs.utils.FileInfo#2 local variable: java.util.ArrayList#315448 local variable: java.util.ArrayList$Itr#4 at org.netbeans.modules.masterfs.filebasedfs.naming.NamingFactory.fromFile(NamingFactory.java:84) at org.netbeans.modules.masterfs.filebasedfs.children.ChildrenSupport$2IOJob.run(ChildrenSupport.java:249) local variable: java.io.File[]#13 local variable: org.netbeans.modules.masterfs.filebasedfs.children.ChildrenSupport$2IOJob#2 at org.netbeans.modules.masterfs.filebasedfs.fileobjects.FolderObj.refreshImpl(FolderObj.java:442) local variable: org.openide.util.Mutex$Privileged#2 local variable: org.netbeans.modules.masterfs.filebasedfs.fileobjects.FolderObj$FolderChildrenCache#7559 local variable: java.lang.Runnable[]#3 at org.netbeans.modules.masterfs.filebasedfs.fileobjects.BaseFileObj.refresh(BaseFileObj.java:868) local variable: org.netbeans.modules.masterfs.filebasedfs.Statistics$StopWatch#4 at org.netbeans.modules.masterfs.filebasedfs.fileobjects.FolderObj.refresh(FolderObj.java:537) at org.openide.filesystems.FileObject.refresh(FileObject.java:1194) at org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObjectFactory$AsyncRefreshAtomicAction.run(FileObjectFactory.java:886) at org.openide.filesystems.EventControl.runAtomicAction(EventControl.java:102) local variable: org.openide.filesystems.EventControl#3 at org.openide.filesystems.FileSystem.runAtomicAction(FileSystem.java:494) at org.openide.filesystems.FileUtil.runAtomicAction(FileUtil.java:397) at org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObjectFactory.refreshFromGetter(FileObjectFactory.java:894) at org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObjectFactory.issueIfExist(FileObjectFactory.java:301) local variable: org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObjectFactory$Caller#6 local variable: org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObj#3169 local variable: java.io.File#74439 local variable: java.lang.Integer#140750 at org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObjectFactory.getFileObject(FileObjectFactory.java:207) at org.netbeans.modules.masterfs.filebasedfs.fileobjects.FolderObj.computeChildren(FolderObj.java:168) local variable: org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObjectFactory#1 local variable: org.netbeans.modules.masterfs.filebasedfs.naming.FileName#44684 local variable: java.util.LinkedHashMap#14210 local variable: java.util.HashMap$KeyIterator#2 local variable: org.netbeans.modules.masterfs.filebasedfs.utils.FileInfo#4 at org.netbeans.modules.masterfs.filebasedfs.fileobjects.FolderObj.noFolderListeners(FolderObj.java:117) at org.netbeans.modules.masterfs.filebasedfs.fileobjects.BaseFileObj.removeFileChangeListener(BaseFileObj.java:538) at sun.reflect.GeneratedMethodAccessor593.invoke(<unknown string>) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.openide.util.WeakListenerImpl$ListenerReference.run(WeakListenerImpl.java:619) local variable: class org.netbeans.modules.masterfs.filebasedfs.fileobjects.FolderObj local variable: org.openide.util.WeakListenerImpl$ProxyListener#44981 local variable: org.netbeans.modules.masterfs.filebasedfs.fileobjects.FolderObj#7540 local variable: java.lang.String#1541634 local variable: java.lang.reflect.Method#8031 at org.openide.util.lookup.implspi.ActiveQueue$Daemon.run(ActiveQueue.java:123) local variable: org.openide.util.WeakListenerImpl$ListenerReference#123808 {code} {code:java} "Active Reference Queue Daemon" daemon prio=1 tid=13 RUNNABLE at java.io.WinNTFileSystem.getBooleanAttributes(Native Method) at java.io.File.isFile(File.java:882) at org.netbeans.modules.masterfs.filebasedfs.fileobjects.BaseFileObj.refresh(BaseFileObj.java:872) local variable: org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObj#7086 local variable: org.netbeans.modules.masterfs.filebasedfs.Statistics$StopWatch#4 at org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObj.refresh(FileObj.java:355) at org.netbeans.modules.masterfs.filebasedfs.fileobjects.FolderObj.refreshImpl(FolderObj.java:459) local variable: java.util.IdentityHashMap#258 local variable: java.util.HashMap$KeyIterator#1 at org.netbeans.modules.masterfs.filebasedfs.fileobjects.BaseFileObj.refresh(BaseFileObj.java:868) local variable: org.netbeans.modules.masterfs.filebasedfs.Statistics$StopWatch#5 at org.netbeans.modules.masterfs.filebasedfs.fileobjects.FolderObj.refresh(FolderObj.java:537) at org.openide.filesystems.FileObject.refresh(FileObject.java:1194) at org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObjectFactory$AsyncRefreshAtomicAction.run(FileObjectFactory.java:886) at org.openide.filesystems.EventControl.runAtomicAction(EventControl.java:102) local variable: org.openide.filesystems.EventControl#3 at org.openide.filesystems.FileSystem.runAtomicAction(FileSystem.java:494) at org.openide.filesystems.FileUtil.runAtomicAction(FileUtil.java:397) at org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObjectFactory.refreshFromGetter(FileObjectFactory.java:894) at org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObjectFactory.issueIfExist(FileObjectFactory.java:301) local variable: org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObjectFactory$Caller#6 local variable: org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObj#3904 local variable: java.io.File#60893 local variable: java.lang.Integer#147047 at org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObjectFactory.getFileObject(FileObjectFactory.java:207) at org.netbeans.modules.masterfs.filebasedfs.fileobjects.FolderObj.computeChildren(FolderObj.java:168) local variable: org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObjectFactory#1 local variable: org.netbeans.modules.masterfs.filebasedfs.naming.FileName#48075 local variable: java.util.LinkedHashMap#14132 local variable: java.util.HashMap$KeyIterator#2 local variable: org.netbeans.modules.masterfs.filebasedfs.utils.FileInfo#3 at org.netbeans.modules.masterfs.filebasedfs.fileobjects.FolderObj.noFolderListeners(FolderObj.java:117) at org.netbeans.modules.masterfs.filebasedfs.fileobjects.BaseFileObj.removeFileChangeListener(BaseFileObj.java:538) at sun.reflect.GeneratedMethodAccessor593.invoke(<unknown string>) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.openide.util.WeakListenerImpl$ListenerReference.run(WeakListenerImpl.java:619) local variable: class org.netbeans.modules.masterfs.filebasedfs.fileobjects.FolderObj local variable: org.openide.util.WeakListenerImpl$ProxyListener#44760 local variable: org.netbeans.modules.masterfs.filebasedfs.fileobjects.FolderObj#7533 local variable: java.lang.reflect.Method#7669 local variable: java.lang.String#1457795 at org.openide.util.lookup.implspi.ActiveQueue$Daemon.run(ActiveQueue.java:123) local variable: org.openide.util.WeakListenerImpl$ListenerReference#187634 {code} The screenshot: !image-2020-12-18-21-25-11-633.png! > Active Reference Queue Daemon handling thousands of irrelevant files, causing > high CPU load and bad responsiveness > ------------------------------------------------------------------------------------------------------------------ > > Key: NETBEANS-5169 > URL: https://issues.apache.org/jira/browse/NETBEANS-5169 > Project: NetBeans > Issue Type: Bug > Affects Versions: 12.0 > Reporter: TLX > Priority: Major > Attachments: image-2020-12-18-21-25-11-633.png > > > For several versions NetBeans has been getting stuck with a message "Checking > for external changes - Suspended" in the status bar and consuming a lot of > CPU (which is noisy on my development notebook). > I used VisualVM to find out what's going on, and this is what I found out: > The high CPU consumption is caused by a thread named "Active Reference Queue > Daemon". > This thread keeps checking thousands or even millions of events all the time. > Most of the actual CPU consumption happens in methods > java.io.File.isDirectory(), java.io.File.canWrite(), > java.ioFile.lastModified(), java.io.File.exists(), and java.io.File.isFile() > called by the mentioned thread. > What I *think* is *supposed* to happen is that NetBeans monitors files that > are relevant for the project at hand for modifications. > What *actually* happens is that this Queue is filled with thousands of files > from the system Temp folder, many of which seem completely unrelated to the > project and to NetBeans. > Why is NetBeans monitoring those? > Monitoring them due to a bug wouldn't be a big problem if they remained > unmodified, I presume. However, it seems some of these files are continuously > modified by other applications on my dev system, keeping NetBeans busy with > checking them all the time. > It is worth noting that only the NetBeans editor is running at the time of > the problem. No service, no Java process, no debugger, profiler, or anything > else is running or attached to anything. Monitoring thousands of files in the > Temp folder seems totally useless to me. > --------------------- > As an appendix I'll provide the following: > # Two examples of typical stack traces the mentioned daemon thread is busy > in. > # An impression what the queue looks like (taken from a heap dump). > > The stack traces: > {code:java} > "Active Reference Queue Daemon" daemon prio=1 tid=13 RUNNABLE > at java.io.WinNTFileSystem.getBooleanAttributes(Native Method) > at java.io.File.isDirectory(File.java:849) > at > org.netbeans.modules.masterfs.filebasedfs.utils.FileInfo.isDirectory(FileInfo.java:75) > at > org.netbeans.modules.masterfs.filebasedfs.naming.NamingFactory.fromFile(NamingFactory.java:103) > local variable: > org.netbeans.modules.masterfs.filebasedfs.naming.FolderName#9847 > local variable: > org.netbeans.modules.masterfs.filebasedfs.utils.FileInfo#2 > local variable: java.util.ArrayList#315448 > local variable: java.util.ArrayList$Itr#4 > at > org.netbeans.modules.masterfs.filebasedfs.naming.NamingFactory.fromFile(NamingFactory.java:84) > at > org.netbeans.modules.masterfs.filebasedfs.children.ChildrenSupport$2IOJob.run(ChildrenSupport.java:249) > local variable: java.io.File[]#13 > local variable: > org.netbeans.modules.masterfs.filebasedfs.children.ChildrenSupport$2IOJob#2 > at > org.netbeans.modules.masterfs.filebasedfs.fileobjects.FolderObj.refreshImpl(FolderObj.java:442) > local variable: org.openide.util.Mutex$Privileged#2 > local variable: > org.netbeans.modules.masterfs.filebasedfs.fileobjects.FolderObj$FolderChildrenCache#7559 > local variable: java.lang.Runnable[]#3 > at > org.netbeans.modules.masterfs.filebasedfs.fileobjects.BaseFileObj.refresh(BaseFileObj.java:868) > local variable: > org.netbeans.modules.masterfs.filebasedfs.Statistics$StopWatch#4 > at > org.netbeans.modules.masterfs.filebasedfs.fileobjects.FolderObj.refresh(FolderObj.java:537) > at org.openide.filesystems.FileObject.refresh(FileObject.java:1194) > at > org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObjectFactory$AsyncRefreshAtomicAction.run(FileObjectFactory.java:886) > at > org.openide.filesystems.EventControl.runAtomicAction(EventControl.java:102) > local variable: org.openide.filesystems.EventControl#3 > at org.openide.filesystems.FileSystem.runAtomicAction(FileSystem.java:494) > at org.openide.filesystems.FileUtil.runAtomicAction(FileUtil.java:397) > at > org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObjectFactory.refreshFromGetter(FileObjectFactory.java:894) > at > org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObjectFactory.issueIfExist(FileObjectFactory.java:301) > local variable: > org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObjectFactory$Caller#6 > local variable: > org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObj#3169 > local variable: java.io.File#74439 > local variable: java.lang.Integer#140750 > at > org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObjectFactory.getFileObject(FileObjectFactory.java:207) > at > org.netbeans.modules.masterfs.filebasedfs.fileobjects.FolderObj.computeChildren(FolderObj.java:168) > local variable: > org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObjectFactory#1 > local variable: > org.netbeans.modules.masterfs.filebasedfs.naming.FileName#44684 > local variable: java.util.LinkedHashMap#14210 > local variable: java.util.HashMap$KeyIterator#2 > local variable: > org.netbeans.modules.masterfs.filebasedfs.utils.FileInfo#4 > at > org.netbeans.modules.masterfs.filebasedfs.fileobjects.FolderObj.noFolderListeners(FolderObj.java:117) > at > org.netbeans.modules.masterfs.filebasedfs.fileobjects.BaseFileObj.removeFileChangeListener(BaseFileObj.java:538) > at sun.reflect.GeneratedMethodAccessor593.invoke(<unknown string>) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) > at java.lang.reflect.Method.invoke(Method.java:498) > at > org.openide.util.WeakListenerImpl$ListenerReference.run(WeakListenerImpl.java:619) > local variable: class > org.netbeans.modules.masterfs.filebasedfs.fileobjects.FolderObj > local variable: org.openide.util.WeakListenerImpl$ProxyListener#44981 > local variable: > org.netbeans.modules.masterfs.filebasedfs.fileobjects.FolderObj#7540 > local variable: java.lang.String#1541634 > local variable: java.lang.reflect.Method#8031 > at > org.openide.util.lookup.implspi.ActiveQueue$Daemon.run(ActiveQueue.java:123) > local variable: > org.openide.util.WeakListenerImpl$ListenerReference#123808 {code} > {code:java} > > "Active Reference Queue Daemon" daemon prio=1 tid=13 RUNNABLE > at java.io.WinNTFileSystem.getBooleanAttributes(Native Method) > at java.io.File.isFile(File.java:882) > at > org.netbeans.modules.masterfs.filebasedfs.fileobjects.BaseFileObj.refresh(BaseFileObj.java:872) > local variable: > org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObj#7086 > local variable: > org.netbeans.modules.masterfs.filebasedfs.Statistics$StopWatch#4 > at > org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObj.refresh(FileObj.java:355) > at > org.netbeans.modules.masterfs.filebasedfs.fileobjects.FolderObj.refreshImpl(FolderObj.java:459) > local variable: java.util.IdentityHashMap#258 > local variable: java.util.HashMap$KeyIterator#1 > at > org.netbeans.modules.masterfs.filebasedfs.fileobjects.BaseFileObj.refresh(BaseFileObj.java:868) > local variable: > org.netbeans.modules.masterfs.filebasedfs.Statistics$StopWatch#5 > at > org.netbeans.modules.masterfs.filebasedfs.fileobjects.FolderObj.refresh(FolderObj.java:537) > at org.openide.filesystems.FileObject.refresh(FileObject.java:1194) > at > org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObjectFactory$AsyncRefreshAtomicAction.run(FileObjectFactory.java:886) > at > org.openide.filesystems.EventControl.runAtomicAction(EventControl.java:102) > local variable: org.openide.filesystems.EventControl#3 > at org.openide.filesystems.FileSystem.runAtomicAction(FileSystem.java:494) > at org.openide.filesystems.FileUtil.runAtomicAction(FileUtil.java:397) > at > org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObjectFactory.refreshFromGetter(FileObjectFactory.java:894) > at > org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObjectFactory.issueIfExist(FileObjectFactory.java:301) > local variable: > org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObjectFactory$Caller#6 > local variable: > org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObj#3904 > local variable: java.io.File#60893 > local variable: java.lang.Integer#147047 > at > org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObjectFactory.getFileObject(FileObjectFactory.java:207) > at > org.netbeans.modules.masterfs.filebasedfs.fileobjects.FolderObj.computeChildren(FolderObj.java:168) > local variable: > org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObjectFactory#1 > local variable: > org.netbeans.modules.masterfs.filebasedfs.naming.FileName#48075 > local variable: java.util.LinkedHashMap#14132 > local variable: java.util.HashMap$KeyIterator#2 > local variable: > org.netbeans.modules.masterfs.filebasedfs.utils.FileInfo#3 > at > org.netbeans.modules.masterfs.filebasedfs.fileobjects.FolderObj.noFolderListeners(FolderObj.java:117) > at > org.netbeans.modules.masterfs.filebasedfs.fileobjects.BaseFileObj.removeFileChangeListener(BaseFileObj.java:538) > at sun.reflect.GeneratedMethodAccessor593.invoke(<unknown string>) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) > at java.lang.reflect.Method.invoke(Method.java:498) > at > org.openide.util.WeakListenerImpl$ListenerReference.run(WeakListenerImpl.java:619) > local variable: class > org.netbeans.modules.masterfs.filebasedfs.fileobjects.FolderObj > local variable: org.openide.util.WeakListenerImpl$ProxyListener#44760 > local variable: > org.netbeans.modules.masterfs.filebasedfs.fileobjects.FolderObj#7533 > local variable: java.lang.reflect.Method#7669 > local variable: java.lang.String#1457795 > at > org.openide.util.lookup.implspi.ActiveQueue$Daemon.run(ActiveQueue.java:123) > local variable: > org.openide.util.WeakListenerImpl$ListenerReference#187634 > {code} > The screenshot: > !image-2020-12-18-21-25-11-633.png! -- 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