On Thu, 15 May 2025 18:27:35 GMT, David Beaumont <d...@openjdk.org> wrote:
>> Adding read-only support to ZipFileSystem.
>>
>> The new `accessMode` environment property allows for readOnly and readWrite
>> values, and ensures that the requested mode is consistent with what's
>> returned.
>>
>> This involved a little refactoring to ensure that "read only" state was set
>> initially and only unset at the end of initialization if appropriate.
>>
>> By making 2 methods return values (rather than silently set non-final fields
>> as a side effect) it's now clear in what order fields are initialized and
>> which are final (sadly there are still non-final fields, but only a split of
>> this class into two types can fix that, since determining multi-jar support
>> requires reading the file system).
>
> David Beaumont has updated the pull request incrementally with one additional
> commit since the last revision:
>
> Changes based on review feedback.
src/jdk.zipfs/share/classes/jdk/nio/zipfs/ZipFileSystem.java line 245:
> 243: : "The underlying ZIP file is not writable";
> 244: throw new IOException(
> 245: "A writable ZIP file system could not be opened for:
> " + zfpath + "\n" + reason);
The JDK coding guidelines recommend excluding file paths from exception
messages. So in this case the `zfpath` should be left out from the exception
message. Additionally, I haven't seen us using newline characters in exception
messages that we construct in the JDK code. So I think we should leave that out
too.
Given this, I think it might be simpler to just change this `if` block to
something like:
if (...) {
String reason = multiReleaseVersion.isPresent()
? "the multi-release JAR file is not writable"
: "the ZIP file is not writable";
throw new IOException(reason);
}
-------------
PR Review Comment: https://git.openjdk.org/jdk/pull/25178#discussion_r2093192898
