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Build Identifier: I20110127-2034 It does not happen all the time and I have no idea how to reproduce it. I have Windows 7 x64, JDK 1.6.0_23 x64 and Eclipse. The movie I shot (to see the problem occurring) was with 3 instances of Eclipse running. One was eclipse-SDK-3.7M5-win32-x86_64, 3.5M5 with WTP 3.5M5 and one was eclipse-jee-helios-SR1-win32-x86_64. All windows from all 3 instances of Eclipse started to come and go and only one Eclipse was compiling. I did get this error: An internal error occurred during: "Searching for markers". GC overhead limit exceeded Reproducible: Sometimes Steps to Reproduce: 1. Have an instance of Eclipse running 2. Compile a huge workspace, with many projects (maybe this is important) 3. See the windows coming and going from the Windows task bar
Created attachment 188800 [details] Movie showing the problem
Probably some WTP plugins might open a window. Moving to WTP for comments.
As far as I know, nothing in WTP opens a window while lots of compiling is going on. It appears in the movie there are a few words in some of the tasks bars flashing up there ... but, I can't make them out. If you can capture using high fidelity, knowing what they say might help. Do you have an project that "regenerate" a lot of code? JET? EMF? ANT? Use Annotations? I'm not sure what would give rise to this ... so, just wondering if there is anything to help focus the search.
The window titles are the perspectives I have opened. Usually I have 4 opened: Resource, Search (which is based on the Resource), Debug, Java Browsing and Team Synchronizing. The window disappears, the title is removed, the window comes back. Note: I do use two "hack" applications to ungroup similar windows called "7 Taskbar Tweaker x64" and another one that adds the icon and title back to the Windows Explorer window called "AeroBarIco". I need to try to rebuild my workspace with those two applications not running. My workspace has couple projects, two of them are our addins that has couple thousand files with a symlink to our application to access jars.
I'm going to move this to "cross project" so it gets wider visibility. Does anyone recognized the "flashing taskbar" items due to windows opening/closing? I don't think it's coming from Java EE (WTP) code. Mylyn? Any one want to confess? :) If so, please reassign to specific project. If not (that is, no one knows where it might come from) we'll just close as "won't fix" or 'worksforme' unless someone can reproduce. Thank you very much for opening this issue,
The issue happened again, I had one instance of Eclipse SDK 3.7.0 I20110519-1138 opened. The CPU was used at 100%, a virtual machine was starting. Eclipse had couple type hierarchy opened (~5ish) and I was changing some settings in the IDE preferences. Maybe I could launch Eclipse from Eclipse and have a break somewhere that could help to determine if the problem is an Eclipse bug and not a Windows bug.
(In reply to comment #6) > The issue happened again, I had one instance of Eclipse SDK 3.7.0 > I20110519-1138 opened. The CPU was used at 100%, a virtual machine was > starting. Eclipse had couple type hierarchy opened (~5ish) and I was changing > some settings in the IDE preferences. > > Maybe I could launch Eclipse from Eclipse and have a break somewhere that could > help to determine if the problem is an Eclipse bug and not a Windows bug. Not that I know of, but better if you could find some exact steps to reproduce. For example, you say "Eclipse had a couple of hierarchy opened". What do you mean by that? Were they "within" the main window? Or do you "tear off" and literally have separate windows? What kind of hierarchies? Class hierarchies views?
I will try to launch Eclipse from Eclipse, see if I can reproduce the issue and have a stack trace. I have my usual 4 windows opened (one perspective per window: Resource, Java Browsing, Team Synchronizing, Java Browsing and Search (based on Resource)). I had also ~5 other windows opened with one perspective in each (Java Type Hierarchy).
Well, I did run Eclipse from Eclipse and the problem never happened. I do have sometimes other windows (Outlook for instance) moving to the end of the task bar lists. Sometimes I have a single Eclipse window moving as well so maybe it's a Windows bug.
Will close as "worksforme" since we can't seem to reproduce it. Let me know if I have misunderstood, or reopen if you discover a reproducible scenario, that implicates Eclipse. Thank you for opening.