Re: Why doesn’t jdk.internal.loader.Loader implement AutoCloseable?

[Alan Bateman]

On 26/05/2019 06:45, Christian Stein wrote:
> Hi,
>
> following the documentation of ModulLayer [1] to create a
> temporary layer for testing, results in a FileSystemException
> when trying to delete the modular jar file after tests are finished.
Can you create a WeakReference to the module layer and do the cleanup 
when the reference is queued? When a module layer is GC'ed then you 
should find the JAR files containing modules will be closed and you can 
delete them. As this is testing then maybe the test finish can null out 
the reference to the module layer (and the class loaders if you have 
references to those), call System.gc, and wait for the weak reference to 
be cleaned.

That said, it might be time to change the Windows sharing mode that 
JarFile/ZipFile uses to open JAR files. I'll create an issue for that.

-Alan