@thomas.hoffm...@speed4trade.com.invalid
<thomas.hoffm...@speed4trade.com.invalid> how to use the debugger in this
case ?any documentation pls ?
@Rob Sargent i posted most of the methods used in the app, but yes JVM is
holding off on deleting the file...
Le dim. 9 oct. 2022 à 17:31, Thomas Hoffmann (Speed4Trade GmbH)
<thomas.hoffm...@speed4trade.com.invalid> a écrit :
> Hello,
>
> > About the methods i use in the application along with file.delete()
> (which is
> > what this post is about) I use File[] files = new
> > File("C:\\SomeFolder").listFiles();
> > file.getName();
> > file.lastModified()
> > Path path = Paths.get(fileName);
> > Would any of these cause the lock on the file ?
>
> They don't look suspicious to me. What you could do is, use the debugger
> to go step by step.
> In parallel, use the ProcessExplorer to see at which point the file handle
> appears.
> Maybe it is more hidden in some other routines which might use a
> MappedByteBuffer to read or write.
>
>
> >
> > Le dim. 9 oct. 2022 à 16:03, Thomas Hoffmann (Speed4Trade GmbH)
> > <thomas.hoffm...@speed4trade.com.invalid> a écrit :
> >
> > >
> > > > -----Ursprüngliche Nachricht-----
> > > > Von: Martin Moore <martinmoore...@gmail.com>
> > > > Gesendet: Sonntag, 9. Oktober 2022 15:37
> > > > An: thomas.hoffm...@speed4trade.com.invalid; Tomcat Users List
> > > > <users@tomcat.apache.org>
> > > > Betreff: Re: About granting permissions to Tomcat JVM
> > > >
> > > > the ProcessExplorer shows that a Java process is running on the file
> > > > and
> > > this
> > > > only after actually performing the delete from Java.
> > >
> > >
> > > Some possibilities for file locking.
> > > - the upload process didn’t close the streams properly
> > > - You use http2 and sendfile
> > > - You are using a MappedByteBuffer before deletion:
> > > https://bugs.openjdk.org/browse/JDK-4724038
> > >
> > > ... just some ideas which cause file locking ...
> > >
> > > > Le dim. 9 oct. 2022 à 15:23, Thomas Hoffmann (Speed4Trade GmbH)
> > > > <thomas.hoffm...@speed4trade.com.invalid> a écrit :
> > > >
> > > > > Hello,
> > > > > this might be a behavior of the underlying OS.
> > > > > If the file is locked, it is marked for deletion and when the file
> > > > > lock is released, the file is physically deleted.
> > > > >
> > > > > Maybe you can check with ProcessExplorer from MS whether there is
> > > > > an open file handle on this file.
> > > > >
> > > > > Greetings,
> > > > > Thomas
> > > > >
> > > > > > -----Ursprüngliche Nachricht-----
> > > > > > Von: Martin Moore <martinmoore...@gmail.com>
> > > > > > Gesendet: Sonntag, 9. Oktober 2022 09:56
> > > > > > An: Tomcat Users List <users@tomcat.apache.org>;
> > > > > > ma...@apache.org
> > > > > > Betreff: Re: About granting permissions to Tomcat JVM
> > > > > >
> > > > > > Hello Mark,
> > > > > >
> > > > > > I don't know if the SecurityManager is enabled or not (how to
> > > > > > disable it
> > > > > > btw?)
> > > > > > I set the env var CATALINA_HOME to be C:/Program
> > > > > > Files/Apache-Tomcat-8/ The files in question are stored in
> > > > > > Desktop/SomeFolder
> > > > > >
> > > > > > Thanks.
> > > > > >
> > > > > > Le dim. 9 oct. 2022 à 08:00, Mark Thomas <ma...@apache.org> a
> > > > > > écrit
> > > :
> > > > > >
> > > > > > > On 08/10/2022 17:36, Martin Moore wrote:
> > > > > > > > Hello,
> > > > > > > >
> > > > > > > > I am facing a problem using Tomcat V8 with my J2ee app that
> > > > > > > > deletes
> > > > > > > (using
> > > > > > > > file.delete() Java 8) a file from disk (Windows). The file
> > > > > > > > is actually deleting only on application level meaning that
> > > > > > > > the application does not see the file anymore but if i open
> > > > > > > > the folder i still see the file which
> > > > > > > is
> > > > > > > > then locked by Java process. I only get the file to be
> > > > > > > > removed physically when i close the Tomcat instance.
> > > > > > > >
> > > > > > > > Does this problem relate to permissions in catalina.policy ?
> > > > > > >
> > > > > > > Unlikely.
> > > > > > >
> > > > > > > Are you using a SecurityManager?
> > > > > > >
> > > > > > > > How to solve this?
> > > > > > >
> > > > > > > Where, exactly, are you storing these files? Where, exactly,
> > > > > > > are CATALINA_HOME and CATALINA_BASE?
> > > > > > >
> > > > > > > Mark
> > > > > > >
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