RFR: 8336675: Remove UnixFileSystemProvider.checkPath in favor of UnixPath.toUnixPath

[Andrey Turbanov]

On Fri, 12 Jul 2024 11:54:15 GMT, Andrey Turbanov <aturbanov at openjdk.org> wrote:

> Implementation of both methods is the same.
> https://github.com/openjdk/jdk/blob/9b6f6c5c9dd6d0fbb056e8d84c3a0888a3320edf/src/java.base/unix/classes/sun/nio/fs/UnixFileSystemProvider.java#L129-L135
> 
> https://github.com/openjdk/jdk/blob/9b6f6c5c9dd6d0fbb056e8d84c3a0888a3320edf/src/java.base/unix/classes/sun/nio/fs/UnixPath.java#L172-L179
> 
> `UnixPath.toUnixPath` is already used by UnixFileSystemProvider in multiple places. Two more usages shouldn't cause problems.

BTW, after my changes, implementations of `sun.nio.fs.UnixFileSystemProvider#newFileChannel` and `sun.nio.fs.UnixFileSystemProvider#newByteChannel` are now identical too. Should we just call `newFileChannel` from `newByteChannel` ?

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PR Comment: https://git.openjdk.org/jdk/pull/20155#issuecomment-2225429645