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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7 views

My Eclipse Won't Open

I'm a bit of a linux noob and my eclipse wont open. I'm using ubuntu gnome 14.10. I have tried reinstalling and reinstalling java 7 and 8. It worked once.
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2answers
16 views

How do I find the path to the 32bit version of java on 64bit Linux?

I've installed a 32 bit version of java on my 64bit system to get Juniper VPN to work. What command line command will allow me to find the path to the 32 bit version of java?
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1answer
22 views

Can't install program using terminal

I got this problem when I trying to install java and netbeans package and internet download manager softwares. I download these files from their websites And try to use command chmod +x ...
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0answers
32 views

Minecraft crashing, 14.04 LTS

Installed openjdk and minecraft, but it keeps crashing. Error as follows. I'm a complete ubuntu noob. A detailed walkthrough of the error, its code path and all known details is as follows: ...
2
votes
1answer
21 views

How to make an export DISPLAY?

I'm execution a Java project on a distant server. My project generates a graphical interface. Here is the shell script that I'm executing on the server side : export ...
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0answers
17 views

Setting JAVA environment variable

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 ...
1
vote
0answers
11 views

Can't set arguments in Eclipse to define Tomcat

I've downloaded Eclipse Luna and Tomcat 7 in my Ubuntu 14.10. I put they into my user folder. Eclise in Eclipse folder and Tomcat 7 in Tomcat folder. So when I try to register a argument in my Tomcat ...
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votes
1answer
41 views

The package jre1.8.0-40 needs to be reinstalled, but I can't find an archive for it

I tried to install JDK using rpm package jdk-8u40-linux-x64.rpm. used command sudo alien -i jdk-8u40-linux-x64.rpm. But i am getting below error. The package jdk1.8.0-40 needs to be reinstalled, but ...
-1
votes
0answers
32 views

Java not running

I'm trying to run other's Java games but they run in the background only. For example, I use java -jar JARNAME.jar and it shows the little Java dude in the sidebar. when I click it nothing pops up. So ...
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votes
0answers
28 views

I'm terrible at programming. Please help [closed]

I'm doing my 3rd year in BSc Software Engineering. I managed to pass all the exams but. I'm really a terrible programmer. I want to learn everything about programming concepts. but don't know where to ...
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0answers
16 views

Network connect launches but crashes (juniper problem)

I am trying to get vpn working using Juniper on a machine running 64bit Ubuntu 14.10. My problem is similar to the one described here: Juniper Crashing right after launching Can somebody guide me ...
1
vote
2answers
21 views

Java uninstall problems

I am trying to uninstall all java. I am getting an error message saying that I have broken packages. Whey I try sudo apt-get install -f I get a message saying that errors were encountered: ...
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0answers
12 views

java not working correctly

I can program Java and run Java web start for Runescape and such (once I do the annoying permission thing), but running jars don't exactly show. I use Java -jar <jar-name>.jar and get a white ...
1
vote
0answers
9 views

What does threatening to kill a process in gnome-system-monitor do?

If I play Minecraft, it freezes often (~every 20 sec); if I select the Java process in System Monitor and press delete, the end process box pops up. At this point, Minecraft unfreezes and accepts all ...
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votes
3answers
74 views

Linux equivalent for «cmd /C start “Title” “C:\Folder\file.bat”» [duplicate]

I have a Java program that runs a batch file on Windows with Runtime.getRuntime().exec() using the following command: cmd /C start "Title" "C:\Folder\file.bat" The Java program ends quickly since ...
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0answers
16 views

Java Programming on ubuntu mobile Platform

Can I start Java programming on ubuntu mobile platform? Can I execute my jar file written in java language on mobile Ubuntu platform?
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0answers
58 views

Graphics Device initialization failed for : es2, sw

I am getting following error while running Kangaroo Test Automation Graphics Device initialization failed for : es2, sw Error initializing QuantumRenderer: no suitable pipeline found ...
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votes
0answers
21 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 ...
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0answers
27 views

Installing Ubuntu requirement for developing app

I have a windows 8.1 on my laptop and I want to install Ubuntu and developing tools such Visual studio, NetBeans, android studio. what would be the requirement needed for installing Ubuntu and the ...
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votes
0answers
13 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. ...
1
vote
0answers
50 views

Minecraft won't run on 14.04

I've had minecraft running on 12.04 for ages, but since upgrading to 14.04 it won't start. I'm using Oracle Java 8, but I've tried Oracle Java 7 and the default Java 7 that comes with Ubuntu. Here's ...
0
votes
0answers
14 views

Minecraft Exit Code 143?

Whenever I open minecraft from the launcher, minecraft opens for a brief second before closing and being replaced by the launcher. I read the launcher logs, and it says "Game ended in bad state (exit ...
-3
votes
1answer
68 views

How to configure Eclipse and Android SDK [closed]

I am very new to Ubuntu and I love to work on it because it gives me a nerdy feel. Can anyone (without posting the link that is available here) share step-by-step instructions for how to configure ...
1
vote
1answer
56 views

using alternatives with java 7 and java 8 on 14.04.2 LTS

I had java 7 installed. Using the PPA repository, I added java 8. sudo apt-get install oracle-java8-installer That made java 8 the default. So, I tried to use update-alternatives to make java 7 the ...
1
vote
2answers
44 views

Problem running jar file in ubuntu

Why does a .jar script run when I run it like java -jar myfile.jar, but it does not run when I execute it like ./myfile.jar
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0answers
42 views

how to enable webex on 14.10 64bits

I had issues to join Cisco Webex in Firefox on 14.10 64bits. Here is my experience to make it work. First, you need to install either openjdk/icedtea or Oracle Java as the JRE. You should be able ...
0
votes
1answer
21 views

i have installed sql developer but can't run?

It doesn't work and give me this message: Type the full pathname of a JDK installation (or Ctrl-C to quit), the path will be stored in /home/muhammad/.sqldeveloper/4.1.0/product.conf
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0answers
38 views

Java HotSpot(TM) Server VM warning: You have loaded library [dir] which might have disabled stack guard

Java HotSpot(TM) Server VM warning: You have loaded library /tmp/libnetty-transport-native-epoll7650900490225298142.so which might have disabled stack guard. The VM will try to fix the stack guard ...
0
votes
0answers
30 views

Help Installing SAP GUI 740

I get this error, should I try a new download or is something I should get from somewhere else? Thanks java -jar PlatinGUI740_0-20012039.JAR Exception in thread "main" ...
0
votes
0answers
20 views

how to configure jitsi with getonsip?

I want to test jitsi with getonsip, can I do that with freephonebox? Or, what's good echo test service, maybe SIP 5060? I want to establish, a positive test, that I've configured the client ...
0
votes
2answers
42 views

“permisson denied” when I install JDK on Ubuntu

When I install jdk1.7.0-76 on Ubuntu, and input java -version on terminal, it turn out to be "permission denied" How can I handle this problem?
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0answers
47 views

How do you “get rid” of a SIGTERM killall command targeted on an application?

I have minecraft on my Ubuntu 14.04 computer. I personally don't know much about Ubuntu and all, so I'm just going to explain it this way: Someone set a SIGTERM killall minecraft command, so whenever ...
1
vote
1answer
209 views

E: Sub-process /usr/bin/dpkg returned an error code (1)

When i try to remove Java sudo apt-get remove jdk1.8.0-40. I get this: Reading package lists... Done Building dependency tree Reading state information... Done The following packages will be ...
2
votes
0answers
26 views

Eclipse problem does not start on 14.04

Just yesterday eclipse was working fine. But today it get's stuck on the small window,after eclipse launch screen. Don't know what exactly is the problem. Due to low reputation i'am unable to post the ...
0
votes
1answer
25 views

UBUTU server java 8 installation error

how to install java 8 in ubuntu server 32 bit ?? sudo apt-get install oacle-java8-installation This is working in UBUNTU desktop version 64 bit but not in UBUNTU server version 32 bit
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votes
1answer
32 views

Installing java for 32 bit on a 64bit OS on terminal

I am using Ubuntu trusty tar 64 bit and I want to install Java 32bit. I have removed the previous java runtime environment which was 64 bit. Now i need help how can I do this on the command line? I ...
0
votes
0answers
14 views

Startup Java Application not showing Application Icon

So I have a custom java application that I run on startup using the startup applications tool. The issue is that program's assigned icon is not being displayed in the unity side bar. it's showing the ...
0
votes
0answers
77 views

Javafx dependant program fails on ubuntu 14.04

An application I need to run is based on JavaFX, but when I run it I get the following error: Graphics Device initialization failed for : es2, sw Error initializing QuantumRenderer: no suitable ...
0
votes
1answer
101 views

class file has wrong version 52.0, should be 50.0

Im compiling a Java program from my terminal it has been working for awhile now, and then all of a sudden I created another class, and now I cant get it to compile.. here is the error I get from the ...
0
votes
0answers
45 views

NetworkError: 500 Internal Server Error

When I am trying to run a java services through php file(xyz), it is throwing this error (Firebug) NetworkError: 500 Internal Server Error http://127.0.0.1/dev/en/abc/xyz ...
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votes
0answers
10 views

Can't work eclipse libraries

So I'm trying to convert my windows workspace to my ubuntu setup and encountered some problems. It's asking for absolute path. Here's what my setup looks like: http://i.imgur.com/6LRz5Q3.png Keep in ...
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votes
1answer
44 views

Java 7 and 8 install problem

I installed java following this tutorial that and the tutorial made me go to this certain file with path variables or something. To play Runescape I need java 7 so I need to switch. I have installed ...
0
votes
0answers
44 views

Connecting to edelivery.oracle.com (edelivery.oracle.com)|23.57.214.140|:443… failed

I am running the following command sudo apt-get install oracle-java7-installer however I am receiving the following error Downloading Oracle Java 7... --2015-03-10 08:13:35-- ...
0
votes
2answers
125 views

Unable to set the right version of java on Ubuntu 14.10

I recently tried installing the most recent version of Oracle JDK (1.8) but somehow I'm unable to overwrite the current version of java being used by the system. I set the JAVA_HOME variable to point ...
0
votes
0answers
25 views

cannot access console for ActiveMQ

I installed ActiveMQ with apt-get, and it seems to run, but oddly: thufir@doge:~$ thufir@doge:~$ activemq status INFO: Loading '/usr/share/activemq/activemq-options' INFO: Using java '/usr/bin/java' ...
0
votes
1answer
97 views

How to set new JDK home in NetBeans IDE after Java update (NetBeans IDE refuses to start)

This is a question which will help you through what to once you have realised that after updating your Java version, NetBeans IDE refuses to launch. And even after updating your $PATH variable in your ...
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0answers
27 views

Trying to Launch Runescape Client - Nothing Happens

I'm really bad at this, and this is my first experience using Ubuntu. If you don't think your answer needs to be explained, it needs to be explained as if I were three. I'm talking explicit, clear, ...
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votes
1answer
13 views

Launchpad: Build package on utopic, but release for older versions

Let's say I want to build an application, that has certain Build-Depends, that can only be satisfied on utopic. To be more specific: openjdk-8-jdk*. The resulting binary will no longer have this ...
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votes
1answer
87 views

Trying to play Runescape on Chromebook

Please be as simple and patient with me as possible. Not only is this my first experience with programming in any way, I'm surprised I got this far at all. I'm being serious. If you don't think it's ...
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0answers
37 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 ...