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From Stefan Bodewig <bode...@apache.org>
Subject Re: Upcoming Java 17 release will have an impact on our javadoc task
Date Sun, 27 Jun 2021 10:40:03 GMT
On 2021-06-17, Jaikiran Pai wrote:

> The recently released EA version of JDK 17 has introduced a change in
> the javadoc tool. Previously (JDK 8 all the way through JDK 16) used
> to log certain messages from the javadoc tool to STDOUT. Our javadoc
> task's implementation expects such messages of STDOUT. Starting this
> JDK EA release the behaviour has changed in the javadoc tool and it
> now logs those messages to STDERR. This change was discussed in the
> OpenJDK mailing list[1] and it has been noted that this is an
> intentional change in the tool.

Who could expect that build tools try to parse output when we've never
provided a Java API to run a typical build task?

Sorry.

> So right now I don't have specific proposals for fixing this but just
> a note that we will have to look into this one for the upcoming JDK 17
> release.

I guess we can simply concatenate stderr and stdout and look for the
"warnings" message there. This should work for every version of Java
supported by Ant.

Stefan

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