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

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4
votes
4answers
11k 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. ...
17
votes
5answers
18k 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 ...
1
vote
1answer
4k 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 ...
1
vote
4answers
2k 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 ...
0
votes
1answer
42 views

openjdk-7-jre installed, but no binaries

I executed sudo apt-get update sudo apt-get install openjdk-7-jre and the package seems to have installed cleanly, but /usr/lib/jvm/java-7-openjdk-amd64/jre/bin/ was empty except for the program ...
0
votes
1answer
64 views

Best practices for installing Java on secure server running Ubuntu 14.04 LTS [closed]

I see there are a number of ways to install Java on Ubuntu... what I want to know is about which way is best for a server that is secure and running a Java web application. The three ways I know of ...
1
vote
1answer
44 views

Octave-4.0.0 Configuration step warnings in Ubuntu 15.04 (HDF5/jni.h not found)

I am trying to install Octave-4.0.0 from source following the instructions from the wiki page. I have installed every single dependency (optional too) mentioned on that page. In the configuration step ...
1
vote
0answers
33 views

Minecraft in 15.04 Connection issues

So I don't know any better way to explain what the problem is other than showing you this. I am using 15.04. Ask me if you need any more information. EDIT: solved, apparently java was just messing ...
1
vote
0answers
7 views

Java not working on Ubuntu 15.04 [duplicate]

When i double click on a .jar file, it opens the archive manager. I have made it executable. I have tried getting Java 6,7 and 8 from the Software center. If i right click on the file and choose to ...
0
votes
1answer
102 views

Can not install java jdk 8

I've installed ubunut 15.04 recently and I've tried to install java JDK 8 but I can not, and I don't know why. I have fallow all that commands: sudo apt-get install python-software-properties sudo ...
0
votes
0answers
30 views

idea-ic IDE fails with “No Java JDK found” error, however my OS has Java installed and exported

I am facing an issue with Idea Intellij. I have Java installed and exported on my machine and it works fine for Pycharms. However, when I try to start Idea Intellij, it gives me Java not found error. ...
0
votes
1answer
17 views

setting up VOCE api in ubuntu

I am using ubuntu 14.04 . I recently downloaded a speech recognition and synthesis api called voce. For installation it told me to run the build.sh file. When I run this script it pops out some errors ...
2
votes
0answers
258 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 ...
2
votes
3answers
41k 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 ...
0
votes
2answers
133 views

OpenJDK vs. Oracle JDK for Android Studio

When I run Android Studio with OpenJDK installed I get a warning recommending the use of Oracle JDK. Is Oracle JDK actually better or is it fine to just stick with OpenJDK? Installing Oracle JDK seems ...
0
votes
0answers
26 views

Possible issues of installing OpenJDK 8 on Ubuntu 12

What are risks/possible issues of installing OpenJDK 8 from PPA (https://launchpad.net/~openjdk-r/+archive/ubuntu/ppa) on Ubuntu 12.04.5 LTS? I understand that OpenJDK 8 never will be in official ...
1
vote
1answer
56 views

what means : java.io.EOFException: Unexpected end of ZLIB input stream? [closed]

The complete : java.util.zip.ZipException: error in opening zip file at java.util.zip.ZipFile.open(Native Method) at java.util.zip.ZipFile.<init>(ZipFile.java:215) at ...
2
votes
1answer
112 views

OpenJDK not working

I have run sudo apt-get install openjdk-7-jre It says Reading package lists... Done Building dependency tree Reading state information... Done openjdk-7-jre is already the newest ...
0
votes
0answers
285 views

Minecraft doesn't connect to Mojang servers/the internet (15.04)

I've been trying to run Minecraft on Ubuntu 15.04 for a while. Whenever I try running, it won't download the launcher pack and it gives me this message: Bootstrap (v5) Current time is Jun 19, 2015 ...
0
votes
1answer
210 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 ...
1
vote
4answers
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 ...
1
vote
3answers
1k 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 ...
1
vote
1answer
2k views

Where is my Java compiler 1.8, in Eclipse?

I installed openjdk8 In Eclipse (v3.8.1) -> window -> preferences -> Java -> installed JREs, I added the related standard VM. In Eclipse -> Project -> Properties -> Java build path, I changed the JRE ...
1
vote
2answers
1k views

How do I work around a “stack size specified is too small” error in Java on POWER8?

I am trying to run Java applications (ElasticSearch and Cassandra) on Ubuntu (14.04) running on Power PC hardware using the OpenJDK. I ran into an error: The stack size specified is too small, ...
10
votes
2answers
42k 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 ...
0
votes
2answers
2k 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
1k 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 ...
1
vote
1answer
986 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
155 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
vote
2answers
2k 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
15k 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
3k 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
519 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
2answers
13k 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.
3
votes
2answers
3k 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
64 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 ...
11
votes
3answers
45k 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
vote
0answers
80 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
votes
3answers
285 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 ...
56
votes
5answers
109k 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
761 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
260 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
115 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 ...
0
votes
2answers
132 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
votes
0answers
54 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
vote
2answers
990 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
140 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 ...
14
votes
1answer
20k 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
1k 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
166 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 ...