Just now installed geogebra on my Ubuntu 16.04 (with plain old sudo apt-get install geogebra)
when I try to open it I get:
GeoGebra 4.0.34.0 (Debian version 4.0.34.0+dfsg1-3) 22 June 2012 Java 9-internal
*** Message from [geogebra.main.Application.setUpLogging]
/tmp/GeoGebraLog_hltazoiolj.txt
#
# A fatal error has been detected by the Java Runtime Environment:
#
# SIGSEGV (0xb) at pc=0x00007f9a380b8009, pid=25913, tid=25915
#
# JRE version: OpenJDK Runtime Environment (9.0) (build 9-internal+0-2016-04-14-195246.buildd.src)
# Java VM: OpenJDK 64-Bit Server VM (9-internal+0-2016-04-14-195246.buildd.src, mixed mode, tiered, compressed oops, g1 gc, linux-amd64)
# Problematic frame:
# C [libjava.so+0x1d009] JNU_GetEnv+0x19
#
# Core dump will be written. Default location: Core dumps may be processed with "/usr/share/apport/apport %p %s %c %P" (or dumping to /mnt/storage/programs/linux/installers/core.25913)
#
# An error report file with more information is saved as:
# /mnt/storage/programs/linux/installers/hs_err_pid25913.log
[thread 25945 also had an error]
#
# If you would like to submit a bug report, please visit:
# http://bugreport.java.com/bugreport/crash.jsp
# The crash happened outside the Java Virtual Machine in native code.
# See problematic frame for where to report the bug.
#
Aborted (core dumped)
I guess it has to do with my JDK, but I have no actual clue what to do. my java -version output:
openjdk version "9-internal"
OpenJDK Runtime Environment (build 9-internal+0-2016-04-14-195246.buildd.src)
OpenJDK 64-Bit Server VM (build 9-internal+0-2016-04-14-195246.buildd.src, mixed mode)
Can anyone help me figure out how to fix this?
Java 9 isn't officially released so I highly doubt any major Java app is using it yet. I don't know how you got that setup, but I would recommend you install JDK 8 instead
update-java-alternatives should be available as a command (depending on your OS), but after you install JDK 8, you can run that and select it to set Java 8 as the Java version for your system.
Or you could edit PATH and JAVA_HOME yourself, but I wouldn't recommend it when there's easier / safer ways.