RFR: JDK-8314272: Improve java.util.prefs.BackingStoreException: Couldn't get file lock.

[Matthias Baesken]

On Fri, 18 Aug 2023 12:35:46 GMT, Alan Bateman <alanb at openjdk.org> wrote:

>No, I don't think the legacy prefs API being coupled to internals like this. Instead I think this is case where the prefs natives >will need to use strerror.

Hi Alan, should this be done similar to what is done here ,  using strerror + strdup and throwing an exception with the generated error message ?
https://github.com/openjdk/jdk/blob/master/src/jdk.attach/linux/native/libattach/VirtualMachineImpl.c#L105
Does not look very nice to me, but would probably work.

It is really a bit frustrating that we have already in the OpenJDK codebase 2 solutions  (HS runtime/os.cpp and nio UnixConstants ) but none are really usable in other parts of the coding. Looks like a bad duplication (or worse) of efforts.

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PR Comment: https://git.openjdk.org/jdk/pull/15308#issuecomment-1689900122