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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1answer
691 views

Minecraft doesn't start on Lubuntu 12.10

I've Installed OpenJDK 6, opened the jar with java by right clicking, but it doesnt do anything What am I missing? I've also tried java -jar Minecraft.jar with sudo, didn't worked :(
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votes
1answer
646 views

Uninstall java not working?

I am trying to uninstall java 1.7.0_10 on ubuntu 12.04 using the instructions from here-http://akbarahmed.com/2012/06/24/uninstall-java-from-ubuntu-linux/. After I complete the instructions, I check ...
1
vote
1answer
66 views

Oracle Java javac runtime error

I have been trying to install Oracle Java 7 on Ubuntu 11.04. I was following the instructions given here Once I followed all the steps ( to the letter ), I tried running java -version which gave ...
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1answer
112 views

Java 1.7 bugs affect ubuntu too?

I remember hearing bad things about java 1.7 on windows and OS-X, but are the same security holes present in Ubuntu?
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3answers
82 views

How do I run update_java_home.sh?

The following is an extract of an instruction manual: If Java is reconfigured after SAV for Linux has already been installed, the JAVA_HOME value in /etc/Symantec.conf must be updated. This can be ...
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votes
2answers
617 views

Java installation (or apt-get?) problem

Two weeks ago I made several successful Java installations without any problem following link http://www.ubuntugeek.com/how-to-install-oracle-java-7-in-ubuntu-12-04.html But today I faced a ...
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0answers
25 views

java install instructions unclear [duplicate]

Possible Duplicate: How can I install Sun/Oracle’s proprietary Java 6/7 JRE or JDK? I have absolutely no idea how to install java-even after reading the instructions on the oracle website. ...
2
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0answers
35 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???
1
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1answer
144 views

java not allowing for the use of all 8gb of ram

I have a 32bit version of Ubuntu server with PAE active allow for the full use of the 8gb of RAM but I can't use more than 2gb of RAM in Java. I run the command java -Xms6G -Xmx7G -jar server.jar ...
2
votes
1answer
99 views

Full Screen Mode Isn't Full Screen

I am try to do 100% full screen mode, I am using Ubuntu 12.10, and on the left is the side bar and the top is the menu. When I run full screen mode it doesn't cover up those two menu bars, it sits ...
2
votes
2answers
112 views

How create a keyboard shortcout to launch an .jar file with Oracle Java 7 Runtine?

I know how to create a keyboard shortcut to launch an application. (All Settings->Keyboard->Shortcuts->Custom Shortcuts) I know how to run .jar files from Nautilius. (Right click->Open with Oracle ...
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0answers
204 views

Ubuntu 12.04 key bindings not working in IntelliJ Idea 12

I've installed the latest version of IntelliJ Idea Community Edition (12.0.1) and I have problems with key bindings there. I am using Ubuntu 12.04 LTS with Unity. None of them, where a letter is ...
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1answer
35 views

Java application appears in other unity workspace

So to clarify a few facts first: with "unity workspace" I mean the workspaces in ubuntu which I switch to using ctrl+alt+arrows. I do not mean the eclipse workspaces I use openjdk java 7 I have ...
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0answers
61 views

Why can't ubuntu re-show a running OpenJDK Java 6 app on the desktop?

I use a password manager program called JP or JPASSWORDS. I run it on Ubuntu 12.10 using OpenJDK Java 6. For security, it minimises itself after a short period, and requires a password to get back ...
2
votes
1answer
123 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
1answer
284 views

How do I left-click a Java Application on a WeTab running Ubuntu 12.10? (workaround defect in Onboard)

I installed Ubuntu 12.10 on my weTab. Everything works perfectly (albeit slowly) and I can touch and use every application execpt ones written in Java. When I start any Java Application the ...
6
votes
1answer
146 views

Free Software for Billing (Colombia)

English I'm looking for a billing application (also inventories, shopping, clients, providers, accounts, etc) for small businesses. The software should adapt with Colombia's necessities. I searched ...
5
votes
1answer
3k views

No Android SDK, neither Java found

I have Java installed correctly, I did it by the manual http://www.wikihow.com/Install-Oracle-Java-on-Ubuntu-Linux I also installed Android SDK. However when I try to create a new Project IntelliJ ...
0
votes
1answer
300 views

Jdk 6.0 update 6 installed sucessfully but java command not working

I switched to linux (Ubuntu 12.04) this morning and find it great but messed up while installing java. :-(. I have installed jdk6.0_6 successfully but when I run java command in terminal, I get this ...
0
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1answer
102 views

Can I install an Ubuntu app from remote laptop?

Is their a way to push/send and ubuntu-app/deb-file to be install on my Ubuntu laptop? Usecase... Laptop 1. I find an app, I need to install! But I´am not at home. I just push it to my other ...
1
vote
0answers
31 views

Removed Java replaced with newest “Sun Java”, disc won't boot, and won't let me re-install grub using boot repair disc

Had a minor problem with my Stock market platform. Set-up screen would freeze program. Called their tech support, got their "Linux guy", who advised remove all Java and replace, not with synaptic ...
0
votes
1answer
319 views

how to install the rpm package jdk-7u9-linux-i586.rpm?

I download the jdk-7u9-linux-i586.rpm (not the rpm.bin) I use code rpm -ivh jdk-7u9-linux-i586.rpm. But it cannot install it succesfully, why?? I use google to search the anwser, but they all about ...
0
votes
1answer
381 views

PhpStorm problem in Ubuntu 12.04

I have a problem starting PhpStorm 5 on Ubuntu 12.04, it shows the following errors stack: I installed Ubuntu just now, so its a fresh copy, changed only ubuntu 2d when logged in, installed Java from ...
1
vote
1answer
309 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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votes
2answers
1k views

How well does Java work on the Nexus 7?

I require Java for work purposes and standard Android would not do for me on my Nexus, hence I have decided to try to Ubuntu route. How do I successfully install Java into the Ubuntu ARM version for ...
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votes
1answer
607 views

How do I install a Java plugin for Google Chrome?

I'm a Java developer so I have the Java 7 JDK installed on my computer from Oracle (Sun). This obviously comes with the JRE. However, Google Chrome says I need the java plugin and wants me to install ...
1
vote
0answers
67 views

Running jnlp or any java on Live-CD

I want to buy a laptop for basic Java programing/learning, and I want to buy a cheep one but not too weak. That's why I want to benchmark it in some way. By default that laptop comes with DOS and I ...
0
votes
1answer
589 views

Oracle Java web start silently dies (Ubuntu 12.10)

Default OpenJDK 7 installed with Ubuntu 12.10 works fine. I have a few issues with a proprietary package I'm using and I need to test against Oracle's Java to see if it's specific to OpenJDK. ...
3
votes
1answer
2k views

How do I reenable opening jar files by double clocking on them?

How can I make "double clik to run" the default behavior of a jar-file on Nautilus? There is no "Open with OpenJDK Java 7 Runtime" on the "Open with" tab under Properties.
2
votes
1answer
90 views

Why doesn't java -version return anything with Oracle's JRE 7?

I've been following these steps and got up to the check version of new JRE installation part but java -version doesn't return anything. I have run sudo update-alternatives --install /usr/bin/java ...
1
vote
2answers
2k views

Cannot get Java to work in Firefox

In Firefox 17 on Ubuntu 12.04, I cannot get the Java verification applet to work (needless to say I cannot get any Java applications on the browser working). I already tried uninstalling and ...
0
votes
1answer
795 views

Minecraft not working in Ubuntu 12.04 LTS - Black screen?

This is what I've done exactly. I downloaded Minecraft for Linux from minecraft.net I tried running the file using both OpenJDK Java 7 Runtime and Oracle Java 7 Runtime The file opened fine ...
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0answers
25 views

How to kill a java process which is configured in /etc/init.d using normal user via batch file

I have a script which is located in /etc/init.d to run a jar program. I need a batch file to kill this jar program after login, is there anyone know how to do it?
1
vote
1answer
517 views

Problem installing Java using Software Center and Terminal

I am new at Ubuntu 12.04 LTS. I need to install Java 6 or 7. But, when I want to do it using the software center or by terminal it responds me "install failed" and "check your Internet connection". ...
2
votes
1answer
373 views

Killing processes from Java

I have created a Java application that can start processes and capture their PIDs so that the application can monitor the process. The user may later choose to kill the whole process tree (session). ...
1
vote
1answer
106 views

Java Problem in 12.04

My OS is 12.04 and I am running it on my laptop. Whenever I install or remove a software from the software centre I receive the error below. Can anyone show me how to fix it? Location: ...
1
vote
2answers
526 views

GWT (Google Web Toolkit) Designer not working on Ubuntu 12.10

The GWT Desinger is not working on Ubuntu 12.10. It worked on Ubuntu 12.04. I installed the Eclipse Plugin as described on the GWT Homepate If I want to open the Design-View (for an xml-GWT-File), ...
0
votes
0answers
10 views

Linux Sun Java6 on 10.04 [duplicate]

Possible Duplicate: How do I install Java? I understand that ubuntu has prevented us from using Sun java, but I cannot use my linux machine to play minecraft or host a minecraft server on ...
0
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0answers
14 views

After Java un installation my system settings were vanished

After my Java un installation, my system settings were gone. When I click on my system settings, I am not getting anything. For a long back I re-install my Java, so i don't remember which command I ...
0
votes
1answer
224 views

Unable to install openjdk6 due to unmet dependencies

I tried to install openjdk6 on 12.04 LTS, with the command: sudo apt-get install openjdk-6-jre but got the following error: Reading package lists... Done Building dependency tree Reading ...
1
vote
1answer
457 views

Minecraft High CPU (125%~) using openJava 6/7

if I run Minecraft with OpenJDK 6 or 7 on my Ubuntu 12.04 machine, it eats nearly of the CPU and I have lags during minecraft gameplay. What I have tried so far: start minecraft with something like ...
0
votes
1answer
230 views

Java problems installing Glassfish 3.1.2 on Ubuntu Lucid

I'm trying to install Glassfish v3.1.2 on Ubuntu 10.04 by obtaining corresponding .sh from Oracle website and running sudo ./glassfish-installer-file.sh. However following error appears: Could not ...
0
votes
2answers
177 views

When I try to start minecraft on Ubuntu 12.04 it says It requires a Java Runtime Enviroment 1.5.0

Please help!I want to play this game, I've been looking for a way to get this to work, but nothing seems to work.
1
vote
0answers
25 views

GWT 1.5.3 not working in Ubuntu eclipse

I am not able to bring up the GWT 1.5.3 hosted mode in the Ubuntu machine.I am getting - libstdc++.so.5: cannot open shared object file. I tried sudo apt-get install libstdc++5 but in vain. Please ...
1
vote
1answer
250 views

javaws is installed and it is not installed - what is going on?

I used the Ubuntu (12.04) Software-Center to install IcedTea Web Control Panel and IcedTea Java Web Start to start a WebStart java-file with the ending jnlp. After this is done I tried to start a file ...
1
vote
2answers
64 views

Do I need any additional Java packages if I'm running the Oracle JRE?

I am running the Java 7 JRE from Oracle. I installed it through terminal and it works properly with my web browsers, and otherwise, as far as I can tell. However, I was browsing through my ...
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0answers
277 views

ALEKS Java plugin on Ubunutu/Lubuntu 12/.10

I have several students who use the ALEKS program for their math courses. ALEKS however does not work on our new computers, which are running Ubuntu/Lubuntu 12.10. When the student logs in, they get ...
3
votes
1answer
293 views

How can I improve Eclipse's user Interface to get rid of the excessive padding and spacing?

Eclipse Juno (historical versions too) has too much padding applied to the tabs and borders. This makes it hard to work with multiple project folders, especially ones containing multiple packages and ...
2
votes
0answers
137 views

Eclipse Juno won't open gui java apps when run with gksudo

I have Eclipse Juno installed on Ubuntu 12.04. When I run from the command line with sudo, everything works fine. However, when I follow the advice I see everywhere and run it with gksudo, I get the ...
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0answers
39 views

Why does Eclipse leave a blank box on my screen?

I'm running Ubuntu 12.04 and whenever I go into the preferences of eclipse I get a grey bar covering all my windows. when I exit eclipse the bar doesn't disappear. I'm running sun-java but it ...

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