Hi Bernd,

I just noticed your report regarding the regression after JDK-8273655. I'm 
directing this communication to jdk-updates-dev now as it seems more 
appropriate.

I assume with release notes you're referring to the Oracle 17.0.3 release 
notes? This change, if you look closely at the backports, was only brought to 
OpenJDK 17.0.3 and it will hit the OpenJDK 11u update 11.0.16 in July. So, it 
would not be reflected in Oracle release notes. The best you can get for 
OpenJDK 17.0.3 release notes is [0], to my knowledge.

Do you have some more information regarding the incompatibility? What I'm 
understanding is that this backport unveils a problem with Apache VFS? Do you 
have a bug link for that one? If it's just uncovering a bug in another 3rd 
party software, I assume it doesn't merit a backout, though.

Best regards
Christoph

[0] https://builds.shipilev.net/backports-monitor/release-notes-17.0.3.html


> -----Original Message-----
> From: core-libs-dev <core-libs-dev-r...@openjdk.java.net> On Behalf Of Bernd
> Eckenfels
> Sent: Montag, 25. April 2022 19:39
> To: core-libs-dev <core-libs-dev@openjdk.java.net>
> Subject: Regression after April Java 17 Update (mime types)
> 
> Hello,
> 
> We just tried to push out the Java 17 April Update but it failed with some
> incompatible behavior. We found out it is caused due to a new mime-type (and
> a bug in Apache VFS) that JAR files could no longer be opened in an overlay
> (technically a JAR URL suddenly had a mime-type and therefore VFS no longer
> looked at the file extension).
> 
> Just wanted to give a heads up in case anybody else has that problem. The
> change 8273655 (a backport 828109) was not mentioned in the 17.0.3 release
> notes (it is also in 11.0.16) from Oracle and Azul - will it show up in the
> OpenJDK announcement?
> 
> This specific case is a changed behavior (even when it has rather unexpected
> negative consequences), it would be therefore good to be called out
> specifically.
> 
> Gruss
> Bernd
> 
> 
> --
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