Java is a programming language originally developed by Sun Microsystems. Questions here should be about the installation, configuration and troubleshooting a JVM (Java Virtual Machine) or a JRE (Java Runtime Environment). Programming questions (unless directly related to Ubuntu) should be asked ...

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Install Java on Ubuntu server (Parallels Plesk)

I want to install Java to my server so I can use PHP shell_exec to compile Java online. So I'm trying to install Java on my webserver (Ubuntu - Parallels Plesk). I logged in to the server with PuTTY ...
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2answers
160 views

search command for packages in Ubuntu terminal to search updates and patches of the package specifically

Can I know what is the command to search any package using the terminal, if I only know the name of the Software like, if I want to search VLC or JDK,JRE.. etc If I do not know what is the url where ...
2
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2answers
9k views

How to set `JAVA_HOME` to point to a JDK installation?

I installed sun-java6-jdk. I need to find it's home directory, JAVA_HOME must point to a JDK installation, not JRE.
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2answers
16k views

How to set JAVA PATH in Ubuntu 12.04?

So java -version give path not found. I have tried the following: Edit: ~/.bashrc ~/.profile /etc/environment bash.bashrc files and add to them the following: ...
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1answer
2k views

Can't use Java 7 from Eclipse?

I installed openjdk-6-jre from the package manager, then I installed Eclipse, and this was the default JRE. Now I needed to install, in addition to 6, also Java 7, so I installed openjdk-7-jre from ...
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3answers
3k views

“MOZILLA_FIVE_HOME not set” zekr quran study software java error

I have installed zekr Quran study software on ubuntu 12.04 and I upgraded to 12.10. then the zekr app has been giving me this error when ever I start it. org.eclipse.swt.SWTError: No more handles ...
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vote
1answer
12k views

Exception on Desktop[sic!] sun.awt.X11GraphicsEnvironment

I'm trying to run different java-swing programs, which used to run before, but I can't start them from the commandline, without getting this error: java GuessGame Exception in thread "main" ...
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3answers
3k views

Does java security flaw affects ubuntu also?

There are rumors about an actual java security problem. The BSI advises people to deactivate java plugins version 7 and prior in all kind of OS, even in linux. Does this mean, I should deactivate ...
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2answers
3k views

How to run Java application in KDE with Qt-like UI?

Continuing my question in Install Ubuntu or Kubuntu? I have tried Kubuntu (KDE), and it was very cool as cool as Ubuntu (GNOME). but there is little problem with its user interface when we start Java ...
6
votes
3answers
18k views

How to fix Java problem installing Matlab 2012a (64-bit) in Ubuntu 12.04 (64 bit)?

I am trying to install Matlab 2012a (64-bit) in Ubuntu 12.04LTS (64-bit). I have installed Java 7. My Java version is: sabyasachi@sabyasachi-ubuntu:~/Downloads/R2012a_UNIX$ java -version java version ...
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2answers
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How to install OpenJDK 8 on 14.04?

Java 8 is now available according to http://openjdk.java.net/projects/jdk8/, but http://openjdk.java.net/install/ does not yet mention how to install OpenJDK 8 (not Oracle Java) on Ubuntu. How and ...
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3answers
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How to use Eclipse with the JDKs provided by 12.04?

I updated to Ubuntu 12.04 and now Eclipse does not accept OpenJDK 6 in /usr/lib/jvm anymore. I tried to install openjdk 7 and it did create two folders in /usr/lib/jvm, but neither is accepted by the ...
4
votes
2answers
3k views

How to make Minecraft run smoothly?

I have noticed that on Windows, Minecraft runs a lot smoother than on Ubuntu 11.10. What can I do to make it run smoother on here? I have a ATI Mobility Radeon HD 4250 Graphics card. I don't know ...
3
votes
1answer
4k views

Ubuntu - saying your security settings have blocked an application from running with an out-of-date version of java

I have this new problem since 2014 begin. I cant remotely login to this enterprise network for giving them support. Its keep showing this new error. How to fix it please? EDIT:
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3answers
9k views

icedtea-7-plugin non-functional in Ubuntu 13.04

I installed(sudo apt-get install) icedtea-7-plugin (and all its dependencies) and have closed firefox and reopened it; and the plugin still does not appear in http//about:plugins Is there a fix for ...
3
votes
1answer
5k views

Desktop link to Eclipse

I was tring to install eclipse on ubuntu. What I did: I unzipped the tar archive of eclipse. I tried to start eclipse from the command line - like this - ./eclipse. It works. But then I tried to ...
3
votes
3answers
2k 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 ...
3
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0answers
10k views

How to properly set up Sun's JDK? [duplicate]

Possible Duplicate: How do I install Oracle's JDK 6? I'm trying to manually install the Sun JDK package (I have my reasons, don't bother asking why). I've successfully extracted the ...
3
votes
2answers
4k views

How do I get the Java plugin in Firefox 3.6 working? [duplicate]

Possible Duplicate: How can I install Oracle Java JRE 7? I have Ubuntu 10.10. I needed the Sun Java so I added Sun Oracle as supplier of packages and installed java-6. However, I haven't ...
2
votes
1answer
51 views

Is it possible to develop Ubuntu Application using java

I am a Java Developer & want to develop application for Ubuntu. I also visited developer.ubuntu.com site and successfully installed Ubuntu SDK and Editor but it is on Unity code and HTML views. I ...
2
votes
2answers
7k views

How to remove openjdk-7?

I want to uninstall java 7 and install the version 6 (as some of programs I would like to use are incompatible with 7). I tried : $ sudo apt-get remove openjdk-7-jre [sudo] password for USER: ...
2
votes
1answer
362 views

Ubuntu One API Java - how to use REST and AccessToken?

I am writing a java app in eclipse that backups data to several consumer-cloud-services encrypted and redundant. So far, I successfully implemented the authentication process, as it is described in ...
2
votes
4answers
2k views

Java Not Recognized As Default Application

I just installed java according to this article, and java -version displays java version "1.7.0_07" Java(TM) SE Runtime Environment (build 1.7.0_07-b10) Java HotSpot(TM) 64-Bit Server VM (build ...
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votes
4answers
2k views

Chrome reports Java plugin outdated

I've just installed the latest version of JRE (7u5) and Chrome still reports that it's outdated. When I go to chrome://plugins/, it shows the following line for Java: Java - Version: 1.7.0_05 ...
2
votes
1answer
19k views

JAVA_HOME is not defined correctly [closed]

I installed java jdk hotspot 1.7. When I type java -version I am getting: java version "1.7.0" Java(TM) SE Runtime Environment (build 1.7.0-b147) This is correct. And I tried to install maven, ...
2
votes
1answer
3k views

Can I run a Java 32-bit application on a 64bit system

Natty 64-bit is installed. iMindmap 5 a Java 32 program will not run correctly. Is installing 32-bit Java a possible solution?
2
votes
1answer
7k views

'Permission denied' while installing 32-bit Java (JDK/JRE) on 64-bit Ubuntu

I use Ubuntu 10.10 server as test server for a Java program. Linux sugam 2.6.35-22-server #35-Ubuntu SMP Sat Oct 16 22:02:33 UTC 2010 x86_64 GNU/Linux Ubuntu 10.10 Since it is a test server and ...
2
votes
2answers
1k views

Packaging a Java web application: .war or symlinks to dependencies?

I would like to package my java web application http://kunagi.org/ for Ubuntu (and Debian). Should the package install a .war file which contains all the required dependencies (.jar files)? Or should ...
1
vote
3answers
210 views

Unable to install LanguageTool 2.5 extension for LibreOffice 4.2 on Ubuntu 14.04

I am not able to install LanguageTool extension for LibreOffice. Getting exception when I try to install it. p.s. Somebody says that the solution is installing openoffice.org-java-common package but ...
1
vote
1answer
54 views

What are the standard places that Java Virtual Machine is configured on Ubuntu 12.04?

I'm running Pangolin (12.04 LTS) and want to sort out some Java stuff where my JVM is pointing at a different place to my Compiler. To demonstrate, my JVM is as follows: ...
1
vote
1answer
669 views

problem on java: not found

Initializing InstallScape using JVM at /home/manoj/iscap/iscape/runtime/LNX86/bin/java. This might take some time... /home/manoj/iscap/iscape/bin/iscape.sh: 209: exec: ...
1
vote
1answer
46 views

JREs from different vendors on the same system

In various tutorials, it is said, that you should remove existing JRE/JDK before installing new one (e.g. remove OpenJDK before installing the one from Oracle). Is it really necessary? I remember ...
1
vote
1answer
390 views

Do I need to have Java (IcedTea) Installed on my machine?

Do I need to have Java installed on my machine? The website (Blackboard) that my school uses says that I need to have Java installed, but everything seems to be working fine without it. Running Ubuntu ...
1
vote
2answers
793 views

How to Remove Unnecessary Packages

I had installed OpenJDK 7 Runtime (openjdk-7-jre) and when it was installed, it also accompany with lot of package depends, but when i wanted to remove. it just removed openjdk-7-jre size 800 kb, and ...
1
vote
3answers
8k views

How to remove error message when installing new softwares

First I had installed oracle java via terminal. its get en error. I don't remember the error message. but other java app are working example netbeans, eclipse. The main problem is when i installed any ...
1
vote
2answers
14k views

Eclipse can't find JDK 7

I've got Oracle JDK 7 installed javac -version yields javac 1.7.0 and the JRE is installed and enabled in Eclipse > Preferences > Installed JREs (As location: /usr/lib/jvm/jdk1.7.0) But trying to ...
0
votes
2answers
627 views

Is actual version of Chromium browser (34.0.1847.116) compatible with Oracle Java 7 browser plugin?

I can not make it work nor find an official confirmation of compatibility. Oracle Java 7 plugin works fine with Firefox but fresh Chromium browser installation does not even list it at ...
0
votes
0answers
472 views

How do I set up Java path? [duplicate]

I want to set up Java in my PC running Ubuntu 12.4 LTS with 64 bit architecture. I followed different posts on this site to do the same but I am confused, whilst I try to navigate to usr/lib/jvm I see ...
0
votes
3answers
3k views

Problems with Eclipse and updated Java version

I'm new in Java. I've installed Eclipse and everything was ok till the moment I've updated Java from 1.6 to 1.7. But today when I tried to open Eclipse I've got the following problem: *JVM ...
0
votes
0answers
567 views

Address already in use error when trying to run jetty with ubuntu server

I am still trying to make Jetty work. Now, I removed ubuntu desktop and installed ubuntu server and I installed java and jetty. When I try to run jetty $ ~/jetty/jetty-dist/bin ./jetty.sh start I ...
0
votes
1answer
7k views

How to remove Java? [duplicate]

I installed Java using the terminal and I also installed Java using Wine to try and run a windows App and well didn't work so now I want to remove all Java 100%. How do I go about doing so? java ...
0
votes
1answer
5k 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.
0
votes
1answer
278 views

Uunable to install software or update the system after half installed java

Please help solve 'oracle-java7-installer' missing. Error below dpkg: warning: files list file for package !['oracle-java7-installer' missing;][1] assuming package has no files currently installed ...
0
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2answers
965 views

Livemeeting in ubuntu

I wanted to use microsoft livemeeting session in firefox browser. I have downloaded java7 tar file, then unzipped the same. Then I linked the plugin using below code sudo ln -vs ...
0
votes
2answers
1k views

How can I uninstall my current java and install sun java 1.6

I installed jdk using the following command: sudo apt-get install default-jdk but it is the wrong version. I need Java SE 1.6 for building Android. When I try building Android, I get a ...
0
votes
2answers
433 views

Problem by installing Java

Yesterday night I was trying to download Java as per instructions given on http://developer.android.com/ .But I messed up somewhere and had to give up the thing. But since morning when ever I try to ...
0
votes
1answer
688 views

aptitude install apach derby ij

I see a similar question here: Question How do I connect to toursdb of Derby database using ij in Ubuntu How do I connect to toursdb of Derby database using ij in Ubuntu I have Ubuntu , I have ...
0
votes
2answers
549 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.
0
votes
1answer
311 views

WebEx webmeeting hangs at 64%

Whenever I try to open webmeeting through AT&T WebEx, it loads till 64% and then hangs.The AT&T FAQs say that Linux machines can host webmeetings as long as you have java installed. I have ...
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votes
0answers
33 views

Xubuntu 14.04 Eclipse Crash with no reason

I am using Xubuntu 14.04. Eclipse 3.8 crashing with no reason. Suddenly closed. I have no idea why. Nothing special in the .log file. I am using Oracle Java 1.8. I am using Eclipse 3.8 I use PDT ...