[Debian-med-packaging] Bug#875779: FTBFS with Java 9: boot classpath guess is wrong

[Chris West]

Source: pixelmed-codec
Version: 20141206
Severity: normal
User: debian-java at lists.debian.org
Usertags: default-java9

This package fails to build with default-jdk pointing to openjdk-9-jdk.
Please fix it, so that we can start the transition to Java 9.
The wiki has some common problems and their solutions:
https://wiki.debian.org/Java/Java9Pitfalls

It looks like the package is trying to set a boot classpath. This is
generally not a good idea for a Debian build, and the technique that's
being used is incorrect here:

https://sources.debian.net/src/pixelmed-codec/20141206-2/debian/patches/set_java_home.patch/

This causes failures like "unable to find java.lang", such as in the build log:

Build log:

make[2]: Entering directory '/build/pixelmed-codec-20141206/com/pixelmed/codec/jpeg'
Makefile:21: warning: overriding recipe for target 'clean'
../../../../Makefile.common.mk:25: warning: ignoring old recipe for target 'clean'
export JAVAVERSIONTARGETJARFILE=/usr/lib/jvm/default-java/jre/lib/rt.jar; javac -O -target 1.7 -source 1.7 -bootclasspath ${JAVAVERSIONTARGETJARFILE} -encoding "UTF8" -Xlint:deprecation \
	-classpath ../../../.. \
	-sourcepath ../../../.. EntropyCodedSegment.java
Fatal Error: Unable to find package java.lang in classpath or bootclasspath
../../../../Makefile.common.mk:20: recipe for target 'EntropyCodedSegment.class' failed
make[2]: *** [EntropyCodedSegment.class] Error 3
make[2]: Leaving directory '/build/pixelmed-codec-20141206/com/pixelmed/codec/jpeg'
Makefile:60: recipe for target 'pixelmed_codec.jar' failed
make[1]: Leaving directory '/build/pixelmed-codec-20141206'


Cheers,
Chris.