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

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Support / lifetime of OpenJDK 6+7 in Ubuntu 12+14 LTS

We have a few systems running OpenJDK 6 on Ubuntu Server 12LTS..we are planning on updating to Ubuntu Server 14LTS with OpenJDK 7. Unfortunately I cannot find any information about OpenJDK 6 + 7 ...
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vote
1answer
207 views

Installation of SAP GUI 740 on Ubuntu 14.04

I need your help! I have the following version of JRE installed on my system: java version "1.7.0_75" OpenJDK Runtime Environment (IcedTea 2.5.4) (7u75-2.5.4-1~trusty1) OpenJDK 64-Bit Server VM ...
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0answers
27 views

Problem in OpenJDK install

I have a problem in OpenJDK installation. openjdk-7-jre-zero - Alternative JVM for OpenJDK, using Zero/Shark uwsgi-app-integration-plugins - plugins for integration of uWSGI and application ...
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votes
0answers
9 views

How to make openjdk-8 default java version and remove openjdk-7

I have intalled openjdk-8 (from official repo) with apt-get install openjdk-8-jre-headless openjdk-8-jre openjdk-8-jdk and updated alternatives with update-alternatives --config java now $ ...
2
votes
2answers
102 views

Apparmor problem: Icedtea plugin freezes firefox (35.0.1)

EDIT5: finally it's probably is an Apparmor problem. /usr/lib/firefox/firefox{,*[^s][^h]} is indeed in complain mode, but /usr/lib/firefox/firefox{,*[^s][^h]}//browser_java ...
1
vote
2answers
47 views

ARM - Java 6 works, Java 7 doesn't [closed]

I have a ARM Android phone, and want to use it to test Java projects on it, because it's the only "PC" that I can have close to me all the day. Right now, I installed Linux Deploy and then created a ...
40
votes
7answers
153k 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 ...
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votes
0answers
65 views

Missing tools.jar (Android Studio)

'tools.jar' seems to be not in Android Studio classpath. Please ensure JAVA_HOME points to JDK rather than JRE. I have searched for the solution to this error, and as far as I can tell, I've done ...
2
votes
2answers
31k views

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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0answers
23 views

Purge or remove command in APT tries to install new packages, how to circumvent this?

I am running Ubuntu 14.04.1 64-bit and when use the purge command for openjdk-7 it suggests to install various packages and I cannot cancel it. Is there a possible work around this issue? You can see ...
-1
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0answers
58 views

Ubuntu 14.04.1 Server, openjdk broken packages

I'm trying setting up a Minecraft server using Ubuntu 14.04 Server x64. it's a fresh install, I have run apt-get dist-upgrade and update and -f install endlessly, now it reports always 0 packages ...
1
vote
1answer
23 views

Can I tell, from the browser, which Java version is installed, including whether OpenJDK, Oracle, etc

I know of java.com/verity, but it only tells me the the version number of Java, e.g. Your Java version: Version 8 Update 25 It does not tell me whether I have OpenJDK or Oracle installed. Is there ...
23
votes
3answers
39k 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 ...
1
vote
0answers
29 views

Cannot remove openjdk without having an older version installed, how can I do so?

I am running Ubuntu 14.04.1 64-bit with Oracle Java installed, hence I would like to uninstall openjdk, but when I try to uninstall it via the command line I get the following output: ~$ sudo apt-get ...
0
votes
0answers
53 views

IcedTea always ask for confirmation even when the security level is lowered, how to change this behaviour?

I am running Ubuntu 14.04.1 64-bit LTS with OpenJDK Java 7 Runtime, IcedTea Web Control Panel, IcedTea Java Web Start and Icedtea Java Plugin(browser plugin) installed. I am using Firefox 35.0.1 and ...
0
votes
1answer
112 views

Installing JDK 8 after removing OpenJDK 7

I just removed OpenJDK at Ubuntu Software Center, and downloaded JDK 8 at official Oracle site, and installed with alien. But when I type java -version at terminal, it keeps returning ...
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4answers
808 views

Java is not working in any browser

I'm using Ubuntu 14.04 , and I've used the 12th edition and 13th and it was always the same problem for me, java is NOT working on any of my browser : all applets aren't functional, I can't login to ...
1
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0answers
66 views

Apache ActiveMQ's main instance does not start in Ubuntu 14.10

I have installed the `activemq package in Ubuntu {12.04|14.04|14.10} In the LTS releases the service works fine, but in the 14.10 dist release the activemq does not work: # ln -s ...
93
votes
11answers
141k views

How do I install Java?

How do I install Java, including in my browser, so websites with Java work?
-1
votes
1answer
24 views

fatal error while using Java3d on newer ubuntu version than 11.10

I'm running a java based website where i use java3d to render some 3d images without any problem on oneiric. I also need to say since the application runs on a server without a graphiccard, i use ...
7
votes
4answers
9k views

Replace openjdk with oracle-jdk on Ubuntu

I have an ubuntu system and I want to replace my openjdk with oracle-jdk. However if I remove my open-jdk and then install oracle-jdk, when I try to install some packages they want to install ...
14
votes
5answers
11k 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 repository. Before Java was taken from all repositories I had purchased Minecraft for play in Ubuntu. After ...
2
votes
1answer
5k views

openjdk-7-jre on Ubuntu 10.10

As mentioned here, by running this command you can install Java 7 JRE. $ sudo apt-get install openjdk-7-jre But sometimes I can't find the package in the official repository of Ubuntu even after ...
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2answers
6k views

Juniper network connect on Ubuntu 14.04 cannot find 32 bit Java

I have Ubuntu x64 and trying to install Juniper network connect. Installed 64bit jre/jdk, icedtea and 32bit jre sudo apt-get install openjdk-7-jre icedtea-7-plugin sudo apt-get install ...
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0answers
38 views

IcedTea Java-plugin displays a warning, how can I define the application as trusted?

I am using Ubuntu 14.04.1 LTS 64-bit and when I launch the VPN client which allows me to use university resources outside the campus I always get warned by the IcedTea Java-plugin, how can I add the ...
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0answers
21 views

libjai-imageio-core-java in Ubuntu 14.04

It seems that libjai-imageio-core-java is missing on 14.04 (it is available on Ubuntu 12.04): http://packages.ubuntu.com/search?keywords=imageio&searchon=names Is there a replacement for this ...
0
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0answers
34 views

oracle-jdk and open-jdk simultaneously on ubuntu machine

I have an oracle-jdk8 installed on my ubuntu 14.04 and i use it for android development, also I need open-jdk or jdk7 for scala because apparently scala has some issues with jdk8. So I was wondering ...
33
votes
4answers
55k views

How to install OpenJDK 8 on 14.04 LTS?

IMPORTANT: If you need this in 14.04, vote for this bug: https://bugs.launchpad.net/ubuntu/+source/openjdk-8/+bug/1341628 Java 8 is now available according to ...
0
votes
2answers
293 views

OpenJDK-7-JRE throws “broken packages” error (14.04 LTS)

I have an application that requires the Java JRE. I decided to go ahead and install the JRE from the repositories. Normally, the only issue I would have with this is it taking forever and a day to ...
0
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0answers
108 views

Install jstack without the entire openjdk-7-jdk bundle

I am wondering if it is possible to install jstack without the entire openjdk-7-jdk bundle. So far, I have a process to manually copy of the following folders and binary from an existing installation ...
0
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0answers
17 views

xcb/xlib chrashes java VM

I'm working on java application, or to be more precise an eclipse rcp application. But I think that this is not the really important part. However, when I try to run the application I always get the ...
0
votes
1answer
353 views

Minecraft Crashing, linux download

Hi so I've been going at this for hours and I have installed everything correctly, I'm using a HP 14 chromebook, and I hear you can get minecraft on it, with downloading a Linux desktop. I'm using ...
51
votes
9answers
152k 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.
5
votes
3answers
20k views

How to set the JDK for Android Studio?

I can't compile a default new project for Android 2.1 because(?) the JDK used by Android Studio is JDK 1.7 but it should be JDK 1.6. To change it I go to File -> Project Structure and try to find the ...
0
votes
1answer
27 views

Why is the installed version of openjdk 32-bit instead of 64-bit?

I have a fairly new installation of Ubuntu 14.10. I am pretty sure that I installed the 64-bit version and confirmed via $ uname -a Linux Family 3.16.0-28-generic #38-Ubuntu SMP Fri Dec 12 17:38:37 ...
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0answers
38 views

error installing any package or update

I want to install package or update but I get an error. Example error for openjdk-6-jdk: Reading package lists... Done Building dependency tree Reading state information... Done openjdk-6-jdk ...
1
vote
1answer
168 views

Where is my Java compiler 1.8, in Eclipse?

1- I installed openjdk8 2- In Eclipse (v3.8.1) -> window -> preferences -> Java -> installed JREs, I added the related standard VM. 3- In Eclipse -> Project -> Properties -> Java build path, I ...
7
votes
4answers
10k views

Unable to install icedtea plugin on Utopic Unicorn 14.10

Trying to install icedtea-7-plugin on 14.10 x64 gives an error. apt-get install icedtea-7-plugin . . . Selecting previously unselected package icedtea-netx:amd64. . . . Processing triggers for ...
1
vote
0answers
284 views

Android Studio Desktop Entry shows “OpenJDK shows intermittent performance and UI issues.”

On Ubuntu 14.04 I recently installed Android Studio v1.0.1 and noticed that it warns against using the OpenJDK due to "intermittent performance and UI issues." As recommended, I installed the Oracle ...
1
vote
1answer
664 views

OpenJDK-8/Oracle JDK 8 Font Patches for Ubuntu

Is there a patched version of OpenJDK-8 or Oracle JDK 8 for Ubuntu 14.10 which fixes ugly fonts in Java Applications (Jetbrains products, Netbeans etc.)? I had previously installed a patched version ...
0
votes
0answers
2k views

Icedtea-7-plugin don't work in Chromium, doesn't show in about:plugins

I'm newbie user of Ubuntu 14.04. I have trouble with: Icedtea-7-plugin don't work in Chromium. It doesn't shows in about:plugins. How I can I fix it? I did: sudo apt-get install icedtea-7-plugin ...
3
votes
2answers
3k views

Android Studo showing :“OpenJDK shows intermittent performance and UI issues.”

I have recently installed Android Studio on my Ubuntu 12.10 64bit machine, but every time that I opened it kept giving the following error "OpenJDK shows intermittent performance and UI issues. We ...
0
votes
1answer
29 views

Binary archives of OpenJDK for ubuntu

My goal is to have multiple version of java 6 and multiple version of java 7 installed on my ubuntu in order to do some tests with different versions of java. I found instructions to install oracle ...
9
votes
1answer
13k views

OpenJDK - Oracle is better? [closed]

From http://www.wikihow.com/Install-Oracle-Java-on-Ubuntu-Linux Type/Copy/Paste: java -version . If you're having OpenJDK Runtime Environment (IcedTea6 1.10pre) (7b15~pre1-0lucid1) OpenJDK 64-Bit ...
0
votes
0answers
39 views

Uninstall oracle and install openjdk back?

I followed the instructions from the answer of this question but it didn't work: How to remove Oracle JDK I Just installed oracle jdk following instructions from this link: ...
1
vote
2answers
58 views

jar files not working

In terminal when try to run jar file it doesn't launch. I have recently uninstalled open jdk 6 to save some space if that matters. abe@abe-Dimension-8400:~/Desktop$ java -jar Minecraft.jar I use ...
15
votes
3answers
36k views

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 ...
3
votes
4answers
8k views

How to make Firefox use the newest Java version, which is already installed?

Apparently, I have OpenJDK 6 JRE (openjdk-6-jre 6b27-1.12.6-1ubuntu0.12.04.2) and 7 JRE (openjdk-7-jre 7u25-2.3.10-1ubuntu0.12.04.2) installed in parallel – I don't know why I have both of them, I ...
3
votes
0answers
320 views

Cannot sudo apt-get -f install because of jdk problem

I am completely stumped. The problem is as follows. user@mycomputer:~$ sudo apt-get -f install Reading package lists... Done Building dependency tree Reading state information... Done ...
0
votes
1answer
37 views

openjdk-7 gdb list main.c sources error

I'm currently struggling with debugging openjdk in Trusty Tahr. I already installed opejdk-7-jdk openjdk-7-dbg. When I issue gdb java I see it reads the symbols properly, but when I ask to list the ...