Take a look if this utility detailed in this blog can help you figure
out which <java> process has the JAR locked.
http://blogs.sun.com/roller/page/quinn?entry=tool_for_diagnosing_failed_glassfish
HTH
-Prashant
Steve Loughran wrote:
Marc Farrow wrote:
Everytime I run an ant task (either in NetBeans or from within Java
Code),
the executing jar gets locked and I cannot delete the jar. I am
copying the
ant script and the dependent jar that it needs to run and then
executing the
ant tasks. Then I wish to delete the "new" copy I just created to
run, but
a jar I am using is locked and will not allow me. This in on a
Windows 2000
machine.
Steps to recreate problem in NetBeans:
1) Create a new Java Application that extends Ant and creates a Jar
or even
uses an existing one such as ant-contrib.jar.
2) Run an the new ant task from within the build script of another
project
(via import command).
3) Delete project created in step 1).
4) Go to windows explorer and try to remove rest of sources, etc from
the
folder that the project in step 1) was created in.
Steps to recreate similar problem using Ant Programmatically.
(All actions happen within same instance of a java class).
1) Check out favorite project from your favorite source control
(programmatically).
2) Programmatically call the Ant script and build the project you just
checked out.
3) Once build has completed (and with no errors) try to delete the
project
you just checked out.
Anyone have any suggestions to keep the "jars" from being locked after
execution of the Ant script?
Ant does not lock jars after is runs, as JARs are only locked while
the java process is active
If a JAR is locked, it means a running java program is using it. It
could be y our IDE, it could be something you exec with <java>.
use the process explorer or JPS to find out what program you are
running with the JAR files. I think the windows server machines have
the ability to delete in-use files or find out who is using them; its
only windows workstation that is crippled.
-steve
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