RFR: 8316000: File.setExecutable silently fails if file does not exist

[Brian Burkhalter]

On Mon, 11 Sep 2023 22:22:47 GMT, Brian Burkhalter <bpb at openjdk.org> wrote:

> On Windows, do not return `true` from the `java.io.File` methods `setReadable(boolean, boolean)` and `setExecutable(boolean, boolean)` if the file does not exist.

src/java.base/windows/native/libjava/WinNTFileSystem_md.c line 479:

> 477:     if (access == java_io_FileSystem_ACCESS_READ ||
> 478:         access == java_io_FileSystem_ACCESS_EXECUTE) {
> 479:         return _waccess(pathbuf, 0) == 0 ? enable : JNI_FALSE;

Here `enable` is returned for backward compatibility, but per the specification it seems that `JNI_TRUE` should be returned instead.

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PR Review Comment: https://git.openjdk.org/jdk/pull/15673#discussion_r1322263371