Chris..I am on java 6 and upgrading to 7 might be challenging. On Jun 14, 2015 3:28 PM, "Christopher BROWN" <br...@reflexe.fr> wrote:
> Hello, > > Since Java SE 7, URLClassLoader defines a "close()" method which may be > useful in the specific case mentioned: > > http://docs.oracle.com/javase/7/docs/api/java/net/URLClassLoader.html#close() > > As for the more general case of Windows locking files from Java, as I > understand it, it's because the underlying file descriptor use to read from > or write to files is only release when the associated stream is garbage > collected (the logic is in the "finalize()" method). In my own code, I > have a utility "delete(File)" method that tries to delete the file, and if > it fails (on a Windows system) will loop with 10 millisecond sleep > intervals, on the second and last iterations attempting System.gc() to > force finalization, and it is seems to be a robust workaround in practice. > > Hope that might help. > > -- > Christopher > > > On 14 June 2015 at 21:15, Stefan Bodewig <bode...@apache.org> wrote: > > > On 2015-06-14, aalok singhvi wrote: > > > > > I tried using "deleteonexit" and it is know allowing me to delete > > something > > > of the jars but not allowing me to delete 2 directories. It says the > once > > > Ant JVM is terminated it can be deleted. > > > > This is what I described. This happens if the JVM has opened the files > > and closed them again. For some reason the JVM on Windows and the OS > > disagree on whether the file is closed, there isn't anything you can do > > but either ensure the files are never opened in the first place or exit > > the VM. > > > > > Can we terminate ant jvm and restart once this delete is completed. I > > know > > > its a stupid question but just wanted to see if you have seen this > before > > > by any chance. > > > > This would mean you'd need two separate build steps with two separate > > invocations of Ant. Something like > > > > ,---- > > | > ant update-jars > > | > ant do-what-I-really-wanted-to-do > > `---- > > > > That would probably work. Maybe you don't need to check for updates all > > the time? An in-buildfile way would be to execute Ant from inside Ant > > using <java fork="true">, but that's not straight forward either. > > > > > Let me check if I can extract a small build. i will need to get > approvals > > > on that. > > > > That would be good. > > > > Stefan > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: user-unsubscr...@ant.apache.org > > For additional commands, e-mail: user-h...@ant.apache.org > > > > >
