Is a free and open source implementation of the Java programming language. It may be installed from the software centre.

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netbeans broken after openjdk update

I had some strange issues on my notebook where NetBeans hangs some times and also some dialog items are missing. I tried various things (ugrading to jre-7, switching to oracle jre, other versions of ...
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1answer
1k views

How to find java path and make a shortcut with jar files?

I'm very new to Ubuntu, installed 12.04 for the first time a few days ago. So I basiclly got a game (feedthebeast, mod for minecraft). Now the jar file which I downloaded works just fine, but I find ...
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2answers
138 views

Ubuntu Failes to Recognize Java

I've been having an issue with Java since I installed Ubuntu and it has been the main reason I have stopped playing certain Java-based games such as Minecraft. You see, although I've downloaded ...
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1answer
2k views

Remove Openjdk 7, install Openjdk 6?

I need to be using Openjdk 6 but cannot figure out how remove Openjdk 7. I used the apt-get purge command and it seems to be successful but even after installing Openjdk 6, java -version always ...
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1answer
235 views

Ubuntu 12.04 problem installing thinkorswim

I have follow the instructions listed in the forum as well as the thinkorswim website. I can get all the way to the launch point for showing the desktop and it won't show I just get a black screen and ...
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1answer
3k views

How to open jar file using open JDK?

I installed "open jdk 7" on ubuntu 13.04, but not recognized in "other application" list to set as default. I need to open a ".jar" file with "open jdk7". Please help.
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How do I set “open jdk java 7 runtime” as default? [duplicate]

I want to set "open jdk java 7 runtime" as default to opening ".jar" file. But when I right click on ".jar" file and then select options, the "open jdk 7" is not listed in "other applications" list. ...
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2answers
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How to setup Java-Home and Path in Ubuntu 12.04

we are new to Ubuntu.Recently we changed my server OS to ubuntu 12.04 from windows 7 . every one have their own login details. one of my college installed Open-Jdk7. I asked him, where you installed ...
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2answers
718 views

How to add “open jdk7” to deffault open program list?

I want to open a .jar file, but "open jdk 7" is not in other applications list. How can I add "open jdk 7" to "other applications" list and then set it as default opener? I have no such problem in ...
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0answers
18 views

Remove openjdk 7 [duplicate]

I tried to remove openjdk 7 using the Ubuntu Software Center, but I received this error message: The following packages have unmet dependencies: default-jre: Depends: default-jre-headless (= ...
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1answer
61 views

Frostwire does not start

I downloaded Frostwire from this page. After downloading, it appeared in the Software Center and supposedly installed it. The problem is simple: Frostwire does not open, the icon blinks but nothing ...
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101 views

jdk installation error

sudo apt-get install oracle-java6-installer [sudo] password for taha: Reading package lists... Done Building dependency tree Reading state information... Done Suggested packages: ...
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71 views

While installing jdk

I'm trying to install java using the WebUpd PPA. After adding their PPA and updating, I try: sudo apt-get install oracle-java7-installer and it gives me an error Oracle JDK 7 is NOT installed. ...
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1answer
146 views

Why is OpenJDK not preinstalled?

I don't understand why OpenJDK is not preinstalled. A bunch of applications depend on it and it only takes up 0,7MB. Of course there is the unneeded "OpenJDK Policy Tool" icon but Canonical could ...
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1answer
627 views

Connection failing on openjdk-7-jre

I am trying to install openjdk-7-jre on a 64bit Ubuntu 12.04 server as part of a Canvas LMS install. When I run sudo apt-get install openjdk-7-jre I get: Err http://us.archive.ubuntu.com/ubuntu/ ...
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1answer
94 views

Frostwire not opening

I have just donwloaded the application FrostWire. I was trying to open it, but it just won't open. The icon does it's flashing, and then it goes back to the normal background, no windows from that app ...
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1answer
906 views

Unable to install openjdk

I have two questions: I want to install JDK so I wrote to terminal: sudo apt-get install openjdk-7-jdk but this message shown ,while my computer was connected internet: Reading package lists... ...
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4answers
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How to install openjdk-7-jdk on Ubuntu 12.04 without dragging in unrelated GUI and sound packages?

Ubuntu 12.04.2 LTS What's going on here? # apt-get install openjdk-7-jdk Reading package lists... Done Building dependency tree Reading state information... Done The following extra packages will be ...
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3answers
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Netbeans install error: The specified jdk folder does not contain jdk

During installation of Netbeans 7.3 I got this message the specified jdk folder does not contain jdk I have openjdk 7 installed on my system using apt-get. I tried to specify the path to ...
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1answer
2k views

Installing openjdk-6-jre:i386 on Ubuntu 12.04 64 bit: broken dependencies

I wa strying to install openjdk-7-jre:i386 in order to access to the university's VPN. I've a machine with Ubuntu 12.04 LTS (precise) 64 bit. However, when I try to install openjdk-6-jre:i386, sudo ...
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0answers
168 views

Can not install 4shared desktop

I have been going to install 4shared desktop. When I opened 4shared desktop .deb file by Software Ubuntu Center, it required openjdk-6-jre, but it can not install openjdk-6-jre. When i marked ...
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1answer
263 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 ...
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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 ...
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764 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 (= ...
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37 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 ...
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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 ...
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531 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 ...
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1answer
144 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 ...
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128 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 ...
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1answer
264 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 ...
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1answer
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Why do I get Exception in thread “main” java.lang.UnsupportedClassVersionError? [duplicate]

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 ...
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1answer
681 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 ...
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179 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 ...
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1answer
653 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, ...
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2answers
10k 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 ...
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2answers
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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 ...
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3answers
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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 ...
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2answers
1k 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.
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2answers
5k 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' ...
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1answer
254 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, ...
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2answers
1k 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 ...
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2answers
645 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 ...
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1answer
1k 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 ...
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1answer
2k 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 ...
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1answer
9k 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 ...
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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 ...
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1answer
2k 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 ...
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2answers
2k 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 ...
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2answers
2k 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 ...
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60 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???