Is a free and open source implementation of the Java programming language. It may be installed from the software centre.
0
votes
0answers
10 views
aptitude dependency resolution issue when trying to install build-deps for openjdk-6
I am running into some kind of rather serious issue with resolving the dependencies if I try to install the build-deps for openjdk-6, as specified in the directions for compiling custom OpenJDK ...
0
votes
2answers
34 views
not able to install javaws
I need to use java web start to run TopCoders ContestAppletProd.jnlp.
When I try to run the the arena I get Java not found error.
Upon selecting the option "using Java Web Start" the jnlp file ...
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 ...
2
votes
3answers
3k views
correct Installation and configuration of openJDK and R
I am relatively new to Ubuntu so I wont know a lot of commands that probably became standard to a lot of you guys.
I am trying to set up R and with it the necessary java dependencies to install e.g. ...
0
votes
0answers
296 views
Ubuntu 13.04 - Unable to manage groups gnome-system-tools does not install from Software Center
Here is error message when attempting to install gnome-system-tools
The following packages have unmet dependencies:
gnome-system-tools:i386: openjdk-7-jre: Depends: openjdk-7-jre-headless (= ...
0
votes
0answers
15 views
openjdk-7-jre's recommended packages
When installing this package, apt-get wants to pull in lots of old Gnome packages (at least libgnome2-0, libgnome2-bin, libgnome2-common, libgnomevfs2-0, libgnomevfs2-common, libidl-common, libidl0 ...
0
votes
2answers
111 views
12.04, 12.10 - how can i install Java 32-bit and Java 64-bit?
I have my project which requires to run with Java - 64-bit for the main application. And for some other libraries it requires Java - 32-bit version.
On 64-bit Ubuntu 12.04 when i install java it ...
0
votes
0answers
36 views
I can't switch from OpenJDK's Java 7 to Oracle's via update-alternatives
x5ives@aperture:~$ sudo update-alternatives --config java
[sudo] password for x5ives:
There is only one alternative in link group java (providing /usr/bin/java): /usr/lib ...
0
votes
1answer
59 views
Really weird hidden dash bug involving OpenJDK and Minecraft [closed]
I'm pretty sure my problem is unique.
I'm using OpenJDK 7 to play Minecraft, in order to avoid wrangling with Wine. Recently, this setup has started to give me problems.
I am getting "System program ...
0
votes
0answers
54 views
Why isn't Java working well in Google Chrome, Chromium and Firefox but working A OK in Opera?
Whenever I try to load up the runescape java interface in google chrome, chromium and firefox I find myself at the following screen:
Which remains the same indefinitely. I am using OpenJDK Java 6 ...
1
vote
1answer
391 views
Setup and install IntelliJ with JDK
Is there any scripts for downloading and installing IntelliJ with JavaJDK or OpenJDK?
I don't know how I did it before using Ubuntu 12.10 but I'm now on a fresh 13.04 install and I have been looking ...
4
votes
3answers
433 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 ...
0
votes
1answer
62 views
Setting environment variables for OpenJDK on Ubuntu 11.10
I am new to Ubuntu and have programmed in C in the same but java seems to be a bitof a pain.
This is what -java version looks like
java version "1.6.0_27"
OpenJDK Runtime Environment (IcedTea6 ...
0
votes
1answer
83 views
Why do I get Exception in thread “main” java.lang.UnsupportedClassVersionError?
I am trying to run a program on eclipse. I am getting the following error:
Exception in thread "main" java.lang.UnsupportedClassVersionError: Perlinit : Unsupported major.minor version 51.0
at ...
5
votes
1answer
100 views
How do I disable Apport from including a core dump?
Intro: apport is a python applicaton running on ubuntu which automates bug reporting. In case of a crash it determines which application crashed, and auto generates a detailed report on the crash, ...
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 ...
2
votes
0answers
2k views
Whenever I try to open minecraft.jar with openJDK it doesn't work [duplicate]
I tried right clicking and selecting open with JDK but nothing happens
1
vote
1answer
84 views
How to fix “some packages could not be installed … unmet dependencies” installing Java? [duplicate]
I have some problems downloading with the sudo apt-get command.
I try to get Java runtime:
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some ...
1
vote
0answers
44 views
Java installed, command not working
I have installed java but I could not get any java command to work! Below shows what I get when I try to run java commands:
sultan@ubuntu:~$ java
The program 'java' can be found in the following ...
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 ...
2
votes
2answers
118 views
I cannot install java from the software center
I can't install openJDK from the software center, I get the error:
Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/o/openjdk-7/openjdk-7-jre-lib_7u15-2.3.7-0ubuntu1~12.10_all.deb 404 ...
1
vote
1answer
108 views
“Failed to fetch” error when installing Eclipse!
I am trying to install Eclipse by using the Ubuntu Software center. I do have an Internet connection and I have actually downloaded other software successfully. However, when I try to install Eclipse, ...
0
votes
2answers
125 views
Setting JDK 7 as default
four@twenty:~$ file /etc/alternatives/java /etc/alternatives/javac
/etc/alternatives/java:symbolic link to `/usr/lib/jvm/java-7-openjdk-amd64/jre/bin/java'
/etc/alternatives/javac:symbolic link to ...
0
votes
1answer
135 views
How to configure JDBC, Tomcat for Eclipse IDE on my Ubuntu 12.04
I got an eclipse IDE on my client's machine. He needs to configure JDBC, and Tomcat on this IDE to use for his Java projects. Kindly help. He got mysql installed right now.
0
votes
0answers
23 views
How to accelerate java VirMIDI port detection?
I install the snd-virmidi kernel module in order to have Virtual MIDI ports in java and connect MIDI software synthesizer to java land.
But, java takes a long time to detect those Virtual MIDI ports ...
3
votes
2answers
102 views
How can I make a .jar file executable?
I'm trying to run a jar application under Ubuntu, so I installed OpenJDK Java 7 Runtime, but when I open this application I got this message :
The file '/home/aimad/Programms/jMerise/JMerise.jar' ...
0
votes
2answers
1k views
Can't get OpenJDK Java 7 Runtime to open 'minecraft.jar' file
I have 64bit Ubuntu 12.10 installed with an Intel® Core™ i5-3570K CPU. I use Chromium. I have installed OpenJDK 7 but whenever I right-click the .jar file and click "open with openjdk java 7 runtime" ...
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 ...
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. ...
6
votes
3answers
11k views
How to start Minecraft [duplicate]
Before starting I want to state that the following 2 links are already done:
How can I install Minecraft?
How do I install Java?
I have the .minecraft folder in my user folder ...
0
votes
1answer
132 views
Set OpenJDK as default application
I'm trying to create a launcher for Minecraft, but in order to make a proper working launcher I need to have OpenJDK Java 7 set as the default application for opening the .jar file. Here's the ...
3
votes
2answers
1k views
When running Minecraft with OpenJDK, my keyboard becomes unresponsive?
I recently downloaded Minecraft with the .jar format and had it running on my computer not so long ago. Now that I'm using my desktop instead of laptop temporarily, I want it to run. On my laptop it ...
0
votes
1answer
296 views
How do I set CLASSPATH variable for Tomcat in 12.10?
Previously, I have set the JAVA_HOME path using the terminal with the following command:
export JAVA_HOME="/usr/lib/jvm/java-7-openjdk-i386" >> ~/.bashrc
Now, I want to set the CLASSPATH ...
1
vote
2answers
340 views
OpenJDK built in Ubuntu 12.10, but not working?
I recently installed Ubuntu 12.10, and I just now realized I haven't installed Java on it.
When I was going to, I saw that I already have java installed.
java -version gives me:
OpenJDK Runtime ...
1
vote
1answer
319 views
OpenJDK not working in Ubuntu 12.10 on Firefox
This is a problem I've been facing for quite some time now : installing Java.
I have installed the following packages using Synaptic
icedtea-netx
openjdk-7-jre
A few others got installed along ...
7
votes
1answer
1k views
Why do fonts look horrible in any java application?
All fonts in java applications look horrible. I have seen a few questions about this previously, but they are quite old now (11.04 was the most recent, but that didn't seem to be the same problem). ...
2
votes
1answer
659 views
Which Java package should I use: OpenJDK or Oracle JDK?
I'm new to Java development under Ubuntu. When I typed javac in the terminal, it prompted me to install OpenJDK and a bunch of other JDKs. I want to know if there is any difference between OpenJDK 7 ...
3
votes
2answers
19k views
Completely uninstall and reinstall OpenJDK
I searched askubuntu and tried the suggestions but failed .I try this question:How to completely uninstall/reinstall Java
1.I run sudo apt-cache search openjdk get the following:
openjdk-6-dbg - ...
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 ...
0
votes
0answers
327 views
apt-get install openjdk-6-jdk install error / loop
apt-get install openjdk-6-jdk does not complete. It gets stuck at downloading.
Get:6 http://in.archive.ubuntu.com/ubuntu/ lucid-updates/main openjdk-6-jre-headless 6b24-1.11.5-0ubuntu1~10.04.2 ...
19
votes
7answers
48k 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.
1
vote
1answer
454 views
Libreoffice does not detect Java on fresh install of 12.10: how to make it work?
I can't use some features of Libreoffice (some extensions, macros) because my Java runtime environment (openJdk-6) is not recognized in my system (see [screenshot]
When launching LibreOffice from ...
0
votes
2answers
877 views
Installation problem on jdk1.7.0_11
I am trying to install my ubuntu using the downloaded jdk1.7.0_11 and jre1.7.0_11,and i traced the questions from here and followed tat steps even it is not installing the java.
In the terminal , I am ...
0
votes
2answers
267 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.
1
vote
2answers
847 views
freemind wont run despite OpenJDK JRE installed
I install freemind from USC Ubuntu 12.04, but it failed to run with the following error:
"
[warning] /usr/bin/freemind: No java runtime was found
[error] /usr/bin/freemind:
Unable to find an ...
2
votes
0answers
35 views
How Can I Change Jamvm on my embedded system to Openjdk?
I have one Embedded System Currently working On jamvm.
I Want to change it to openjdk.
How Can I do that???
1
vote
1answer
179 views
how to install g++ and openJDK from .deb package [duplicate]
Possible Duplicate:
How can I install software or packages without Internet (offline)?
I have recently started using ubuntu 12.04 for my dell inspiron 5500 15r. I want to install g++ and ...
1
vote
2answers
63 views
Do I need any additional Java packages if I'm running the Oracle JRE?
I am running the Java 7 JRE from Oracle. I installed it through terminal and it works properly with my web browsers, and otherwise, as far as I can tell.
However, I was browsing through my ...
0
votes
1answer
73 views
Openjdk 7 wont show up at all [closed]
I was playing minecraft earlier with openjdk 7, put my laptop in sleep mode, took a nap, and now jkd is gone. i've uninstalled it both software center and terminal. then reinstalled both. it's still ...
2
votes
1answer
603 views
Icedtea in Chrome won't load java applets
Icedtea in Chrome won't load java applets such as minecraft and runescape. It shows a gray screen instead. I've tried and failed to install the java plugin for chrome and it's left me wondering why ...
