Is a free and open source implementation of the Java programming language. It may be installed from the software centre.
49
votes
12answers
38k views
14
votes
3answers
5k views
How to correctly install and troubleshoot Minecraft (Client)
How to correctly install Minecraft, including setting any needed packages or apps to install it and to troubleshoot the most common problems that Ubuntu users face when trying to user Minecraft.
I am ...
12
votes
5answers
10k views
Will Sun's Java be available from Canonical's partner repository?
I just discovered that Oracle's (Sun's) Java6 has vanished from the Canonical's partner repo.
Before java was taken from all repositories I had purchased Minecraft for play in Ubuntu. After recent ...
6
votes
2answers
1k views
is OpenJDK Vulnerable to 0-Day Exploit?
I was curious to know if OpenJDK is also vulnerable to the Zero-Day Exploit that is currently afflicting Java 7 because of which experts are telling people to disable Java until a solution is found on ...
15
votes
4answers
22k views
How to replace OpenJDK 6 with OpenJDK 7?
Surprisingly (as OpenJDK 7 was released to general availability about 4 months ago) Ubuntu 11.10 still uses OpenJDK 6 instead of 7 by default. How do I best fix this? I'd prefer to remove OpenJDK 6 ...
4
votes
3answers
434 views
How to revert back to OpenJDK?
I had installed sun-java, but I want to revert back to OpenJDK 7. I was trying to re-install from the terminal using the command sudo apt-get install openjdk-7-jre, same from Synaptic and Software ...
19
votes
7answers
49k views
How to completely uninstall Java?
How can I completely remove all traces of Java on my system?
I already know how to install it in case I need it again.
10
votes
2answers
6k views
Changing JVM in Java
I only recently discovered the different JVM's on the wiki page and thought I'd start tinkering. Its been difficult to find documentation on how to configure Java on Ubuntu though.
Lets say I wanted ...
9
votes
5answers
4k views
Eclipse has multiple issues after JRE-6 (OpenJDK) upgrade
I'm on 12.04 LTS, and trying to use Eclipse Indigo.
This morning Ubuntu made me update the following packages:
Preparing to replace icedtea-6-jre-cacao 6b24-1.11.3-1ubuntu0.12.04.1 (using ...
9
votes
2answers
6k views
ca-certificates-java fails when trying to install openjdk-6-jre
I use a VPS with Ubuntu Server 10.10 x64. I want to use Java and run the command sudo apt-get install openjdk-6-jre but it fails because the installation encounted errors while processing ...
4
votes
5answers
26k views
Installing Chrome Java Plugin
I've been trying to install the Java plugin for Chrome for a couple hours now, and I figured it was time to ask people with more experience. I can't seem to get it working. My current Java version is ...
7
votes
4answers
22k views
How can I tell what version of Java I have installed?
I want to start toying around with java (eventually getting to the point where I can write basic little programs for android or web), but I've managed to have java messed up on my computer (from past ...
5
votes
4answers
9k views
Minecraft goes black on 12.04 [duplicate]
Upon upgrading to 12.04 I installed Minecraft, Openjdk 6 and 7. When I login everything is fine, but after that I get the "Updating Minecraft" screen for about 0-5 seconds, then the screen goes black. ...
5
votes
3answers
2k views
How to use Eclipse with the JDKs provided by 12.04?
I updated to Ubuntu 12.04 and now Eclipse does not accept OpenJDK 6 in /usr/lib/jvm anymore. I tried to install openjdk 7 and it did create two folders in /usr/lib/jvm, but neither is accepted by the ...
5
votes
1answer
2k views
Can't upgrade packages, it gets stuck on openjdk-6-jre-headless
I am using Ubuntu Maverick (server).
When I run:
apt-get upgrade
it gets stuck on:
Setting up openjdk-6-jre-headless (6b20-1.9.7-0ubuntu1) ...
Why? And what can I do to stop it?
I tried ...
4
votes
3answers
11k views
How to get icedtea7-plugin?
On Ubuntu 11.10 (oneiric), I installed openjdk-7-jre openjdk-7-jdk but could not find icedtea7-plugin.
How to get the plugin?
$ java -version
java version "1.7.0_147-icedtea"
OpenJDK Runtime ...
0
votes
2answers
268 views
I installed the OpenJDK-7 but my runtime environment wasn't upgraded to 7?
I installed openjdk-7-jdk, "javac" was version 7 but "java" was still version 1.6, any way around this? No updates are available.
0
votes
2answers
1k views
Firefox Hangs on ubuntu when loading java applets
I am using Firefox 3.6.12 on ubuntu 10.10 amd64 with Openjdk JRE. Firefox seems to hang for a long time when loading applets from websites using java. Things seem to work smoothly on Windows. I have ...
