Bug#912527: [Openjdk] Bug#912527: openjdk-8-jdk: please update to support class file version 64
Control: tags -1 + wontfix On Tue, 20 Nov 2018 01:33:21 -0200 Tiago Daitx > The only way for Debian to support that would be for it to have > something like a separated openjfx-8 package that was compiled with > openjdk-8. Somebody would have to be willing to support that but I am > not sure if openjdk-8 will even be included in buster. The openjfx > maintainer can probably provide a more insights into that. I don't plan to support an openjfx-8 package, sorry that's too much work. openjdk-8 remains in Buster only as a convenience to build or bootstrap packages that cannot build with OpenJDK 11 only. The openjdk-8 package is not supported at runtime, so JavaFX applications have to migrate to OpenJDK 11. Emmanuel Bourg
Bug#912527: [Openjdk] Bug#912527: openjdk-8-jdk: please update to support class file version 64
On Wed, Oct 31, 2018 at 11:57 PM Norbert Preining wrote: > $ java -jar myprog.jar > Error: A JNI error has occurred, please check your installation and try again > Exception in thread "main" java.lang.UnsupportedClassVersionError: > javafx/event/EventTarget has been compiled by a more recent version of the > Java Runtime (class file version 54.0), this version of the Java Runtime only > recognizes class file versions up to 52.0 > ... Please note that differently from Oracle JDK the OpenJDK project does not contain any classes for javafx. In Debian these classes are provided by the openjfx package. In particular the class javafx/event/EventTarget can be found in the libopenjfx-java binary package inside the /usr/share/java/javafx-base-11.jar file. >From your system informaton I can see you are running sid. The openjfx version in sid is 11+26-5, which is not compatible with openjdk-8 [see https://github.com/javafxports/openjdk-jfx/blob/jfx-11/doc-files/release-notes-11.md]. It depends and is only usable with openjdk-10 or openjdk-11. > OTOH, if I use jdk8 from upstream: > $ which java > /home/norbert/Java/jdk1.8.0_192/bin/java > $ java -version > java version "1.8.0_192-ea" > Java(TM) SE Runtime Environment (build 1.8.0_192-ea-b04) > Java HotSpot(TM) 64-Bit Server VM (build 25.192-b04, mixed mode) > $ java -jar myprog.jar > ... > > There are no problems. This is because the Oracle JDK packages JavaFX in its binary, it is not using the openjfx package from Debian, thus it works. > > Would it be possible to update jdk8 in Debian to support that? The only way for Debian to support that would be for it to have something like a separated openjfx-8 package that was compiled with openjdk-8. Somebody would have to be willing to support that but I am not sure if openjdk-8 will even be included in buster. The openjfx maintainer can probably provide a more insights into that. -- Tiago Stürmer Daitx Software Engineer tiago.da...@canonical.com PGP Key: 4096R/F5B213BE (hkp://keyserver.ubuntu.com) Fingerprint = 45D0 FE5A 8109 1E91 866E 8CA4 1931 8D5E F5B2 13BE
Bug#912527: openjdk-8-jdk: please update to support class file version 64
On Thu, 1 Nov 2018, Norbert Preining wrote: > building jars with jdk11 (as distributed by Debian) at the moment > seems to create lass file version 54.0 files, but running them on > Debian supplied jdk8 is not possible: Indeed. You have to compile with javac with the --release 8 option, which is new starting from JDK 9. That will create class files that use only Java 8 language features and link against the Java 8 standard library instead of the Java 11 one. > Would it be possible to update jdk8 in Debian to support that? Even if it were (which I doubt), the Java 8 runtime (standard library) does not contain many functions added, so it will not work. bye, //mirabilos -- tarent solutions GmbH Rochusstraße 2-4, D-53123 Bonn • http://www.tarent.de/ Tel: +49 228 54881-393 • Fax: +49 228 54881-235 HRB 5168 (AG Bonn) • USt-ID (VAT): DE122264941 Geschäftsführer: Dr. Stefan Barth, Kai Ebenrett, Boris Esser, Alexander Steeg
Bug#912527: openjdk-8-jdk: please update to support class file version 64
Package: openjdk-8-jdk Version: 8u181-b13-2 Severity: normal Dear all building jars with jdk11 (as distributed by Debian) at the moment seems to create lass file version 54.0 files, but running them on Debian supplied jdk8 is not possible: $ which java /usr/bin/java $ java -version openjdk version "1.8.0_181" OpenJDK Runtime Environment (build 1.8.0_181-8u181-b13-2-b13) OpenJDK 64-Bit Server VM (build 25.181-b13, mixed mode) $ java -jar myprog.jar Error: A JNI error has occurred, please check your installation and try again Exception in thread "main" java.lang.UnsupportedClassVersionError: javafx/event/EventTarget has been compiled by a more recent version of the Java Runtime (class file version 54.0), this version of the Java Runtime only recognizes class file versions up to 52.0 ... OTOH, if I use jdk8 from upstream: $ which java /home/norbert/Java/jdk1.8.0_192/bin/java $ java -version java version "1.8.0_192-ea" Java(TM) SE Runtime Environment (build 1.8.0_192-ea-b04) Java HotSpot(TM) 64-Bit Server VM (build 25.192-b04, mixed mode) $ java -jar myprog.jar ... There are no problems. Would it be possible to update jdk8 in Debian to support that? Thanks Norbert -- System Information: Debian Release: buster/sid APT prefers unstable-debug APT policy: (500, 'unstable-debug'), (500, 'unstable'), (1, 'experimental') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 4.19.0 (SMP w/8 CPU cores) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US:en (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages openjdk-8-jdk depends on: ii libc6 2.27-8 ii libx11-62:1.6.7-1 ii openjdk-8-jdk-headless 8u181-b13-2 ii openjdk-8-jre 8u181-b13-2 ii zlib1g 1:1.2.11.dfsg-1 Versions of packages openjdk-8-jdk recommends: ii libxt-dev 1:1.1.5-1 Versions of packages openjdk-8-jdk suggests: pn openjdk-8-demo pn openjdk-8-source pn visualvm -- no debconf information
