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dev build 200409061800 I've got a web project whose "compiling sources" properties include another project as a dependency. The other project is a JAR file. If I hit SHIFY-F11 to "clean and rebuild" the web projects sometimes it works but sometimes it fails to delete the JAR file in the other project it depends on. It seems to me like Netbeans is forgetting to close a file handle or release a lock.
Probably a dupe, already fixed. If you can still reproduce in a current dev build pls. reopen with precise steps to reproduce. *** This issue has been marked as a duplicate of 48466 ***
dev build 200409091800: this issue is still reproducable. Create project A, a web project, with a classpath dependency on project B, a library project. Hit SHIFT-F11 to clean and rebuild project A. Run it. Try SHIFT-F11 again. The dependency B is going to have its files locked and cannot be deleted. Maybe tomcat is at fault?
Milan please check if you can reproduce... if so, need some sort of Windows-specific tool to track down the owner of the file lock, not sure what that is; will need to reassign to someone with such tools. Could be a problem in Ant, Tomcat, the javac parser, etc.
Reproducible for me: init: deps-clean: init: deps-clean: Deleting directory E:\work\testprojects\JavaLibrary1\build Deleting directory E:\work\testprojects\JavaLibrary1\dist clean: do-clean: Deleting directory E:\work\testprojects\WebApplication1\build E:\work\testprojects\WebApplication1\nbproject\build-impl.xml:354: Unable to delete file E:\work\testprojects\WebApplication1\build\web\WEB-INF\lib\JavaLibrary1.jar BUILD FAILED (total time: 1 second) Don't know any tool Jesse mentioned.
There is FileMon -- http://www.sysinternals.com/ntw2k/source/filemon.shtml -- which lists *all* file accesses. You could concievably dump logs to disk, then filter them until you catch the last person opening the file but not closing it. CAVEAT: The log is *huge* so using this approach is by no means easy. Another approach would be to somehow poll the locking state of the file at different times (i.e. before and after Tomcat is invoked) and isolate when it occurs.
David, can you check it and reassign as needed?
Actually, if you guys can reproduce this under Linux, maybe it has better tools for detecting file locks than Windows.
Unix does not have mandatory file locks, just Windows. However you can sometimes find whether the JVM has a given file open (e.g. memory-mapped) using the Gnome process monitor, which can give you a hint that may apply to Windows.
It is Tomcat who holds the file opened and which after some time release it. I can see that in my monitoring program.
Ok, Tomcat is known to have this problem. So David and Gili, are you saying that this only happens when Tomcat in the IDE is running, or does it sometimes happen also when Tomcat is not running?
Yes, it happens when built jar is deployed to Tomcat (i.e. Web project is Run). After that I can see that external java process in which Tomcat runs has opened the jar built by project and holds it opened. Randomly after some time the file is closed and disappear from the list. When it is opened by Tomcat the build in IDE fails with "Unable to delete file".
Hmm, even if it a known Tomcat issue we should really try to address it somehow -- using a workaround or whatever else. Right now you need to restart Netbeans every time you want to clean & build your project.
Perhaps belongs in j2eeserver module rather than web, I don't know.
Changed category to tomcatint. Gili, does it help to stop Tomcat in the Runtime tab? That should be a valid workaround. Or just to wait for 20 seconds or so? Tomcat should just release the jars itself.
Tomcat restart helps. Waiting 20 secs helps only sometimes :(.
Also, if there is a Tomcat Bugzilla associated with this we should post it here so we can followup on it and see when they fix it. Petr, you mentioned this was a known issue, from where?
Marking as duplicate of issue 47919. *** This issue has been marked as a duplicate of 47919 ***
This was not only on web projects I have some projects, They are Java Libraries (none of them is web application), and this is their dependencies: Project `Lib` have no dependency project `Pack1` depends on `Lib` project `Pack2` depends on `Pack1`, `Lib` project `Pack3` depends on `Pack4`, `Lib` project `Pack4` depends on `Lib` project `Final` depends on `Pack1`, `Pack2`, `Pack3`, `Pack4`, `Lib` When I do "Clean and Build" on "Final", SOMETIMES, It would terminate by this error: ant -f D:\\code\\Final clean jar init: Deleting: D:\code\Final\build\built-clean.properties deps-clean: Updating property file: D:\code\Final\build\built-clean.properties Pack1.init: Pack1.deps-clean: Updating property file: D:\code\Final\build\built-clean.properties Lib.init: Lib.deps-clean: Created dir: D:\code\Lib\build Updating property file: D:\code\Final\build\built-clean.properties Deleting directory D:\code\Lib\build Lib.clean: Deleting directory D:\code\Pack1\build Pack1.clean: Pack2.init: Pack2.deps-clean: Updating property file: D:\code\Final\build\built-clean.properties Pack3.init: Pack3.deps-clean: Updating property file: D:\code\Final\build\built-clean.properties Pack4.init: Pack4.deps-clean: Updating property file: D:\code\Final\build\built-clean.properties Deleting directory D:\code\Pack4\build D:\code\Final\nbproject\build-impl.xml:1471: The following error occurred while executing this line: D:\code\Final\nbproject\build-impl.xml:1521: The following error occurred while executing this line: D:\code\Pack2\nbproject\build-impl.xml:1450: The following error occurred while executing this line: D:\code\Pack2\nbproject\build-impl.xml:1479: The following error occurred while executing this line: D:\code\Pack3\nbproject\build-impl.xml:1450: The following error occurred while executing this line: D:\code\Pack3\nbproject\build-impl.xml:1479: The following error occurred while executing this line: D:\code\Pack4\nbproject\build-impl.xml:1446: Unable to delete file D:\code\Pack4\dist\Pack4.jar BUILD FAILED (total time: 3 seconds) Note that I did not execute any of these project in netbeans or any other place, even I closed Windows File Explorer, there is no application working with my code files (Except Netbeans), and SOMETIMES, in any steps, `Clean and build` Process raised with error title: `Unable to delete SOMEPROJECT.jar`. the more dependencies, the more errors Condition: Netbeans 7.3.1; OS: Windows 7; CPU: Intel Core i7 3770
rxdelta, Do not reopen/modify closed issues. Please open a separate issue and reference the old issue there, if needed. *** This bug has been marked as a duplicate of bug 47919 ***