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

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2answers
55 views

Minecraft with OpenJDK 7, I get “the trustAnchors parameter must be non-empty”

Im using Ubuntu 15.04 and OpenJDK 7, trying to run Minecraft. This is what I get. EDIT: Minecraft is working now when I use sudo java -jar Minecraft.jar but doesn't work without super user, how would ...
0
votes
2answers
808 views

Netbeans installation doesn't work

While trying to install Netbeans 8.0 in my Ubuntu 14.04 I get the following error: Can`t initialize UI Running in headless mode Exception: java.awt.HeadlessException thrown from the ...
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1answer
984 views

How do I install Oracle Java on 12.04 such that it works in Google Chrome/Chromium?

I've looked at the other questions asked on this subject and I got OpenJDK and its plugin for web browsers but it isn't working for me. Please help me here, would be much appreciated if someone could ...
1
vote
2answers
92 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 ...
1
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2answers
1k 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 ...
4
votes
4answers
13k 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' ...
2
votes
2answers
2k views

IcedTea plugin for openjdk 8

I updated from openjdk 7 to openjdk 8. Meanwhile I uninstalled jdk 7(which uninstalled icedtea plugin too). I tried to reinstall icedtea with sudo apt-get install icedtea-7-plugin But it ...
4
votes
1answer
464 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 ...
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0answers
50 views

lost right-click open with java 7 Ubuntu 14.04

Does the following method seem proper enough (or alternatively, fundamentally flawed) as the way to get back the right-click ability for opening with Java? After some sort of hang and crash of ...
0
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2answers
10k 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.
2
votes
2answers
1k views

Problem running jar from gui in 15.04

I updated ubunut to 15.04 today. Now when I try starting a jar file from the gui it only opens the archive manager. Checking the open with tab in Properties I can't find Openjdk. I got both Openjdk ...
2
votes
2answers
28 views

what is the minumim required packages for installing open java 8

What are the minimum packages required to install open java 8? Available packages: openjdk-8-dbg openjdk-8-jdk openjdk-8-jre-jamvm openjdk-8-demo openjdk-8-jre ...
9
votes
3answers
32k 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 ...
1
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0answers
42 views

JRE failed even after open jdk as well as oracle

$ sudo update-alternatives --config java There are 2 choices for the alternative java (providing /usr/bin/java). Selection Path Priority Status ...
0
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3answers
95 views

Minecraft doesn't run; I do all the things to fix it, but it doesn't works!

No OpenJDK 7 Java Runtime on the dialog box. Done fixing this. Here's my Java version. I'd just reformatted my PC because there's problems in the last Ubuntu installation but Minecraft works ...
9
votes
2answers
34k 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 ...
2
votes
2answers
36k 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 ...
42
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5answers
81k views

How to install OpenJDK 8 on 14.04 LTS?

IMPORTANT: If you need this backported to 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
557 views

OpenJDK Java 7 missing from “Open With” under file Properties

Ok. I have read through probably two-dozen posts and articles, and still can't seem to find an answer. I have installed OpenJDK-7 and am trying to set it as the default to open .jar files ...
0
votes
1answer
129 views

removing jva openjdk 7, ubuntu 15.04

Can I safety remove OpenJDK 7 from my system? I've got OpenJDK 8 but I've found this: I suppose you are using 12.10 or 13.04. Here default-jre depends on openjdk-7-jre. So you can't remove ...
1
vote
1answer
33 views

Can't install anything via apt-get - openjdk errors

I have become unable to install anything on my Ubuntu 14.04 box. When I try to, I get the following error: No apport report written because the error message indicates its a followup error from a ...
1
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2answers
2k 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
2answers
49 views

unable to install OpenJDK Java 6 runtime

Please mind im fairly new to linux so please try to keep the technobabble to a minimum. So in the ubuntu software centre i tried to install the java 6 runtime and it gave me this error message The ...
0
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0answers
29 views

sqldeveloper can't start

When starting sqldeveloper it crashes without any warning. It just shows a window for a fraction of second. By debuging : $ bash -vx /opt/sqldeveloper/sqldeveloper/bin/sqldeveloper it gives this ...
1
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2answers
701 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 ...
0
votes
1answer
72 views

Problem while installing oracle-java8-installer

I am trying to install Oracle's Java8, but I get the following errors. How can I fix those? Translated from Spanish. For original text, please see the revisions. r06xd@uers1-H61MLV2:~$ sudo apt-get ...
11
votes
1answer
17k 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
1answer
407 views

Missing tools.jar (Android Studio)

The command $ ~/android-studio/bin/studio.sh says '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 ...
0
votes
0answers
62 views

Setting JAVA environment variable [duplicate]

I am setting up new Ubunut machine. Stuck on setting up Java environment variable. I have tried all possible way and whatever solution I found here. None of them worked. It is still giving me blank ...
13
votes
4answers
14k 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 ...
0
votes
2answers
1k 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
votes
2answers
91 views

Switching to Java 7

I have both java-6-openjdk and java-7-openjdk installed on my machine. When I check the version, I get java version "1.6.0_27". I want to run java 7 but don't really know what all I have to change to ...
0
votes
0answers
43 views

Problems running Java programs with OpenJDK

I am running Ubuntu 14.10 on my machine, and in order to run programs in Eclipse it seems that I must use the OpenJDK instead of the JDK from the Oracle website. I think this is the source of this ...
1
vote
1answer
549 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 ...
0
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0answers
26 views

Application Showing Default OpenJDK Icon When Run With OpenJDK

I have a Java Application built using SWT. It's pretty easy to set the image for the application: shell.setImage(new Image(display, "path/to/image.png")); The image is displayed as it should (i.e. ...
0
votes
0answers
27 views

Can't Repair - openjdk-7-jdk:i386 libatk-wrapper-java-jni:i386 Broken packages in Ubuntu 14.04

When i run the reaair broken packages on synatic package manager it returns: E: /var/cache/apt/archives/openjdk-7-jre_7u75-2.5.4-1~trusty1_i386.deb: intentando sobreescribir el compartido ...
0
votes
0answers
26 views

Minecraft not running

So when I boot minecraft, everything goes very well until I click the play button. Once click, the launcher autohides (like it should) then it opens back up with the following error: ...
1
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0answers
71 views

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 ...
0
votes
0answers
75 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 ...
1
vote
0answers
123 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
202 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 ...
42
votes
7answers
165k 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 ...
0
votes
0answers
40 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
vote
1answer
30 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 ...
29
votes
3answers
46k 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
49 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
127 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
270 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 ...
1
vote
4answers
1k 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 ...
2
votes
0answers
155 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 ...