2017-07-02
Rebuilding Debian with Java 9
It's about three months until Java 9 is supposed to be released. Debian contains around 1,200 packages that build against Java 8. I have been trying to build them with Java 9.
It's not been going well.
The first attempt found an 87% failure rate, the majority of which were either:
- toolchain issues (which are for Debian to fix) (e.g. maven/guice needing new cglib).
-sourceand-targetbeing old, unsupported values.
This is too bad to get an idea of what's actually broken, so I gave up.
The second attempt has gone better, only 57% failures. This had a number of issues fixed, but there's still a large number of problems masked by toolchain failures.
However, some real Java 9 breakages are coming to the fore!
- 90 packages are hitting module-based accessibility rules,
although maybe many of these are bugs in
gradle. These are the kind of bug that it may be hard to fix in your own software, so it's slightly worrying to see so many of them. - 15 packages are using underscore or enum as a keyword, which hopefully should be easy to fix everywhere.
- 9 packages have new compile failures around casting, which may be compiler improvements, or bugs. Exciting!
Oh, and 135 packages have an unknown problem, so maybe there's a whole other class of bug I've missed.
This is (obviously) an ongoing project, but I thought I'd write up what I'd seen so far.
Also, I wanted to mention how cool it was to hack up a dashboard for your ghetto make/Docker build process in ghetto shell, although slightly less ghetto than the previous shell.
Every 2.0s: ./classify.sh
ascii cast deps doclint javadoc keyword modules unknown version
47 total 9 total 203 total 82 total 165 total 15 total 83 total 114 total 206 total
==== ==== ==== ==== ==== ==== ==== ==== ====
antelope charactermanaj access-*hecker android*-tools access-*hecker avalon-*mework activem*otobuf adql 389-adm*onsole
axis dom4j activem*tiveio antlr4 akuma axis android*ork-23 aspectj 389-ds-console
azureus electric activemq args4j animal-sniffer biojava-live android*dalvik aspectj*plugin airport-utils
clirr findbugs activem*otobuf bindex annotat*ndexer bnd android*oclava bouncycastle android*-tools
cmdreader jajuk afterburner.fx cdi-api antlr3 dbus-java android*silver bsh antlr
cortado jsymphonic akuma classycle apache-log4j2 jalview android*inding closure*mpiler artemis
cronometer libjaud*r-java animal-sniffer commons-math3 apache-mime4j javacc4 android*ibcore cofoja beansbinding
dita-ot olap4j annotat*ndexer ditaa async-h*client java-gnome android*ibrary commons-jcs bindex
eclipselink sweethome3d antlr3 felix-g*-shell axmlrpc jmol android*apksig convers*ruptor biojava-live
eclipse antlr4 fest-assert bcel jruby-openssl android*s-base davmail biomaj
entagged apache-log4j2 fest-reflect bridge-*jector libcomm*g-java android*ls-swt diffoscope brig
fop args4j fest-util bsaf libxml-*1-java android*helper dnsjava brltty
geronim*0-spec atinjec*jsr330 ganymed-ssh2 build-h*plugin libxpp2-java ant dumbster cadencii
imagej bcel gentlyw*-utils canl-java mvel apktool eclipse*nyedit castor
jasmin-sable bridge-*jector glassfish cglib squareness basex eclipse-cdt cdi-api
jas build-h*plugin hdf5 commons*nutils bintray*t-java eclipse*config ceph
jasypt carrots*h-hppc hessian commons*ration biojava4-live eclipse-eclox cobertura
javacc4 cglib intelli*ations commons-csv easybind eclipse-emf coco-java
javaparser checkstyle jacksum commons-io eclipse-mylyn eclipse-gef colorpicker
jets3t codenarc jcm commons*vaflow eclipse-wtp eclipse*clipse commons*client
jgromacs commons*nutils jfugue commons-jci eclipse-xsd eclipse*es-api concurr*t-dfsg
king commons*ration jmock commons-math freeplane eclipse-rse cvc3
knopfle*h-osgi commons-csv jnr-ffi cssparser gant eclipse*clipse db5.3
libcds-*t-java commons-io jpathwatch csvjdbc gradle-*plugin emma-coverage dbus-java
libcomm*g-java commons*vaflow jsurf-alggeo dirgra gradle gdcm dicomscope
libidw-java commons-jci jts dnssecjava gradle-*otobuf geronim*upport ditaa
libiscwt-java commons-math libcds-*c-java dokujclient gradle-*plugin gettext docbook*-saxon
libitext-java commons-parent libcomm*c-java doxia-s*etools graxxia gluegen2 doxia
libjdbm-java commons-vfs libcomm*4-java dtd-parser groovycsv gnome-split easyconf
libjt400-java core-ca*lojure libcomm*2-java easymock groovy h2database excalib*logger
libstax-java cssparser libhac-java felix-b*sitory gs-collections ha-jdbc excalib*logkit
libvldo*g-java data-xm*lojure libhtml*r-java felix-f*mework htsjdk hdrhistogram f2j
libxpp3-java dirgra libirclib-java felix-g*ommand ice-bui*gradle icu4j felix-osgi-obr
livetri*jsr223 dnssecjava libjaba*t-java felix-g*untime insubstantial icu4j-4.2 fontchooser
mathpiper dokujclient libjgoo*n-java felix-shell ivyplusplus icu4j-4.4 ganymed-ssh2
maven-a*helper doxia libjhla*s-java felix-s*ll-tui jabref icu4j-49 gentlyw*-utils
metastudent doxia-s*etools libjoda*e-java felix-utils jackson*tabind istack-commons geogebra
naga dtd-parser libjsonp-java geronim*0-spec jackson*-guava jakarta-jmeter gridengine
ognl easymock libjsr1*y-java geronim*1-spec java3d janino healpix-java
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