Robert Važan created MJAVADOC-656:
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Summary: Following redirects breaks valid links
Key: MJAVADOC-656
URL: https://issues.apache.org/jira/browse/MJAVADOC-656
Project: Maven Javadoc Plugin
Issue Type: Bug
Affects Versions: 3.2.0, 3.0.1
Reporter: Robert Važan
Version 3.0.1 fixed #427 by following redirects. This feature unfortunately
breaks when HTTP server is configured as follows:
/apidocs/package-list -> 200
/apidocs -> 301 /apidocs/com/example/package-summary.html
/apidocs/ -> 301 /apidocs/com/example/package-summary.html
/apidocs/com/example/package-summary.html -> 200
Without following redirects (in version 3.0.0), the link is passed to javadoc
tool unchanged, the javadoc tool fetches /apidocs/package-list, and everything
works fine. Since 3.0.1, javadoc plugin follows one of the redirects (/apidocs
or /apidocs/), passes the package summary URL to javadoc tool, which then fails
like this:
[WARNING] javadoc: warning - Error fetching URL:
[https://example.com/apidocs/com/example/package-summary.html/]
And if you have failOnWarnings set to true, this will fail the whole build.
The solution is fairly simple. Construct the whole URL (.../package-list) and
follow redirects on that one. Then check whether the final destination ends in
/package-list, strip the /package-list suffix, and pass the result to the
javadoc tool.
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