Thanks! Didn't realize that Ubuntu would include an old version. Getting oracle-java8-installer fixed thing.

Br,
Mikael


On 8.3.2016 11:42, Stefan Scheffler wrote:
Hi,
Probably wrong java version. Try to use 1.8

Am 08.03.2016 um 10:40 schrieb Mikael Pesonen:

Hi,

tried to run

fuseki-server --update --mem /ds

in apache-jena-fuseki-2.3.1

and got this error

Exception in thread "main" java.lang.UnsupportedClassVersionError: org/apache/jena/fuseki/cmd/FusekiCmd : Unsupported major.minor version 52.0
        at java.lang.ClassLoader.defineClass1(Native Method)
        at java.lang.ClassLoader.defineClass(ClassLoader.java:800)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
        at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
        at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:482)

System is clean install of Ubuntu 14.04.4 LTS

java version "1.7.0_95"
OpenJDK Runtime Environment (IcedTea 2.6.4) (7u95-2.6.4-0ubuntu0.14.04.1)
OpenJDK 64-Bit Server VM (build 24.95-b01, mixed mode)


Br,
Mikael



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