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[Anders Kaseorg <andersk@xxxxxxx>]

Public bug reported:

geogebra does not start in quantal.

$ geogebra
Exception in thread "main" java.lang.UnsupportedClassVersionError: geogebra/GeoGebra : Unsupported major.minor version 51.0
…
Could not find the main class: geogebra.GeoGebra. Program will exit.

geogebra was built against openjdk-7-jdk (which is default-jdk in
quantal), but the default JRE is still openjdk-6-jre.  This is similar
to bug 1007914 in jenkins.

$ java -version
java version "1.6.0_24"
OpenJDK Runtime Environment (IcedTea6 1.11.3) (6b24-1.11.3-1ubuntu0.12.04.1)
OpenJDK 64-Bit Server VM (build 20.0-b12, mixed mode)
$ update-alternatives --display java
java - auto mode
  link currently points to /usr/lib/jvm/java-6-openjdk-amd64/jre/bin/java
/usr/bin/gij-4.7 - priority 1047
  slave java.1.gz: /usr/share/man/man1/gij-4.7.1.gz
/usr/lib/jvm/java-6-openjdk-amd64/jre/bin/java - priority 1061
  slave java.1.gz: /usr/lib/jvm/java-6-openjdk-amd64/jre/man/man1/java.1.gz
/usr/lib/jvm/java-7-openjdk-amd64/jre/bin/java - priority 1051
  slave java.1.gz: /usr/lib/jvm/java-7-openjdk-amd64/jre/man/man1/java.1.gz
Current 'best' version is '/usr/lib/jvm/java-6-openjdk-amd64/jre/bin/java'.

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: geogebra 4.0.34.0+dfsg1-1
ProcVersionSignature: Ubuntu 3.5.0-8.8-generic 3.5.0
Uname: Linux 3.5.0-8-generic x86_64
NonfreeKernelModules: openafs nvidia
ApportVersion: 2.4-0ubuntu6
Architecture: amd64
Date: Tue Aug  7 01:39:37 2012
EcryptfsInUse: Yes
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha amd64 (20101202)
PackageArchitecture: all
SourcePackage: geogebra
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: geogebra (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug quantal

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https://bugs.launchpad.net/bugs/1033815

Title:
  Fails to start (java.lang.UnsupportedClassVersionError)

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