Created attachment 29843 [details]
thrown exception

I have tried to fix it. Since it is not easy to reproduce I cannot be sure that
the fix will really help, so if you'll see it again feel free to reopen.

Checking in JAXWSNNListener.java;
/cvs/websvc/jaxwsmodel/src/org/netbeans/modules/websvc/jaxwsmodel/project/metadata/Attic/JAXWSNNListener.java,v
 <--  JAXWSNNListener.java
new revision: 1.1.2.7; previous revision: 1.1.2.6
done

I saw it again, now while deleting webproject with ws in "Favorites" tab. IDE
was started w/ clean userdir and deleted project wasn't opened in the IDE.

We agreed with Jungi, that if the issue happens only in such situation, it is
not P2 anymore => downgrading. If anyone will see it in the original scenario,
please upgrade it back to P2 + attach the exception stacktrace if it is
different than the original one.

just correcting priority...

Now it's 100% reproducible in NB55Beta 200605020200.
Just create web module on bundled tomcat, web service in it and deploy it.Create
another web module and there web service client.Choose previously deployed
service  and enter package name. Client is correctly generated,but "Cannot get
exclusive access to C:\Documents and
Settings\jp154641\WebApplication6\nbproject\jax-ws.xml" message is always
thrown. Also in Output window
"WebApplication6-impl(wsimport-client-clear-MyWS,wsimport-client-MyWS)" is message 

Target `wsimport-client-clean-MyWS' does not exist in this project. 
BUILD FAILED (total time: 0 seconds)

The exception describet here is the same as exception in 75727.

The problem was that jax-ws.xml input stream was not closed in GeneratedFilesHelper.

This is the fix:
http://websvc.netbeans.org/source/browse/websvc/jaxwsmodel/src/org/netbeans/modules/websvc/api/jaxws/project/GeneratedFilesHelper.java?r1=1.1.2.4.2.1&r2=1.1.2.4.2.2

Same issue (exclusive access) is now with webservices.xml

mustang b84, nb5, as8.2 bundle on Ubuntu Linux

Create web app, add web service, go to add operation in editor, and get
RTE "Cannot get exclusive access to
{mumble}/WebApplication11/web/WEB-INF/webservices.xml"

This problem does not appear with jdk5_06 

Created attachment 30594 [details]
log from above problem with b84

Note also reported as http://www.netbeans.org/issues/show_bug.cgi?id=73503

This problem is totally reproducible for me with the steps provided.

*** Issue 73503 has been marked as a duplicate of this issue. ***

I just receieved this exception as well.  Running latest dev build of nb55 on
Solaris 10, JDK 1.6, b90.  J2EE 1.4 web application against Glassfish ur1 b03.

"Cannot get exclusive access to /space/tmp/WSWeb/web/WEB-INF/webservices.xml"

I should add - I was attempting to create a web service in a newly created web
application.  My webservices.xml exists but is blank.  Might be a
synchronization problem with another thread attempting to access this file at
the same time.

I looked at the code in WebServiceGenerator.addWebServiceEntry and it uses
FileUtil.copyFile() to create the initial webservices.xml file.

copyFile() does not use AtomicAction which is a real problem for creating XML
files because the create event is sent before the XML root nodes and/or DOCTYPE
are written to the file allowing correct identification by the loader.  It also
wouldn't surprise me if the source of this exception is a conflict with the XML
data loader reading the file while trying to identify it.

Martin or Rico or whomever wants to review this, try the attached patch that
uses an atomic action to create the initial version of webservices.xml.

Created attachment 32110 [details]
patch diff.

The patch looks fine.
Nevertheless, this is another problem as the original one, isn't it ?

Thanks for the review.

I think that patch could address this issue, or one possible cause at least.

The thread that runs the dataloaders will grab a file as soon as the event is
sent that it was created on disk and it has to open that file and sniff for the
XML signature and what type of XML file it is.

I suspect that if the thread that is writing webservices.xml (without the
benefit of atomic action) does not manage to open the file it just created
before the dataloader does (rare, but possible), then you would get the "Cannot
get exclusive access" exception because the file is already open for read by
another thread.

I applied the patch.

Also the modifications of jax-ws.xml were included to FileSystem.AtomicAction.

Diffs:
http://websvc.netbeans.org/source/browse/websvc/dev/src/org/netbeans/modules/websvc/dev/wizard/WebServiceGenerator.java?r1=1.21.4.7.2.5&r2=1.21.4.7.2.6
http://websvc.netbeans.org/source/browse/websvc/jaxwsapi/src/org/netbeans/modules/websvc/jaxws/spi/ProjectJAXWSSupport.java?r1=1.1.2.21&r2=1.1.2.23
http://websvc.netbeans.org/source/browse/websvc/clientapi/src/org/netbeans/modules/websvc/spi/jaxws/client/ProjectJAXWSClientSupport.java?r1=1.1.2.18&r2=1.1.2.20

Haven't saw this for a long time, so marking as verified.