FTBFS against openjdk-6 6b23 due to internal Sun API changes.

Operating System:
 OS - Ubuntu Development Release - Oneiric Ocelot

java -version:
 java version "1.6.0_22"
 OpenJDK Runtime Environment (IcedTea6 1.11pre) (6b23~pre2-0ubuntu2)
 OpenJDK 64-Bit Server VM (build 20.0-b11, mixed mode)

Prior to 6b23 com.sun.image.codec.jpeg.ImageFormatException extended RuntimeException rather than Exception so it did not need to be caught or declared as throw in code that was using this internal API.

>= 6b23 is class extends Exception - this has caused a couple of build failures in packages that use this package - see linked bug report in Ubuntu.

This change was introduced with changeset http://icedtea.classpath.org/hg/icedtea6/rev/8720a7df46e3?revcount=120

It would appear that this makes the IcedTea6 implementation API different from the original Java 1.5 API for this class.

I'll look into fixing this. Note that the version concerned is a pre-release of IcedTea6 1.11 and not '6b23' which confused me at first (I thought you were referring to a proprietary Oracle JDK).

What disturbs me is that this is not yet in a release of IcedTea6 yet, but you seem to have acquired it via an Ubuntu package.

(In reply to comment #1)
> I'll look into fixing this. Note that the version concerned is a pre-release
> of IcedTea6 1.11 and not '6b23' which confused me at first (I thought you were
> referring to a proprietary Oracle JDK).

Thanks for looking at this and apologies for the confusion - this is probably my ignorance of how IcedTea and OpenJDK/OracleJDK related to each other - I was purely going on the version number of the Ubuntu package.

> What disturbs me is that this is not yet in a release of IcedTea6 yet, but you
> seem to have acquired it via an Ubuntu package.

This is in the latest development release for Ubuntu; I guess that having the pre release of 1.11 helps flush out this sort of bug.

IcedTea builds a specific OpenJDK build drop with additional patches and extensions to make it usable. This ID is even more confusing because there is no b23 of OpenJDK6 yet. Both IcedTea6 1.10 and the forthcoming 1.11 are still using b22. So I don't know where this 'b23' is coming from...:-S

I ran a full comparison:

http://fuseyism.com/japi/jpeg-icedtea6-oracle.html

and fixed up some other differences too. As far as I can tell, the exception reports in the above are either wrong or undocumented. The 1.5 docs for the package state that these exceptions are thrown. All the other issues I've fixed and I'm building the result now. Will post here once the commit is in.

If this is an Ubuntu pre-release, then it's understandable but it would still be good of them to keep us in the loop. It shouldn't go out in a released Ubuntu as we only provide security updates for releases, not random snapshots.

http://fuseyism.com/japi/jpeg-oracle-icedtea6.html is the comparison the other way round (Oracle as the standard which IcedTea6 is implementing).

Fixed: http://icedtea.classpath.org/hg/icedtea6/rev/944778c61e3c

Hi Andrew

Thanks for fixing this issue; this change has now landed in the Ubuntu development release and has resolved the issues that I was having with this API.

Cheers

James