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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2answers
122 views

How to open program from process id?

Is there any way to open program which is running in background. I've developed an application in java for ubuntu and want to open that application through its pid if it is already being running just ...
0
votes
2answers
110 views

Matlab 2014a interface started lagging on Ubuntu 14.04

My Matlab 2014a interface really started lagging recently, after months of smooth and fast performance, on Ubuntu 14.04. Both the main Matlab window and the code editor window has a persistent ...
0
votes
1answer
227 views

Change resolution while program is running

There are some applications (mainly java based) that don't follow the global 2x scale I set in the screen-settings. So these apps are really tiny on my high DPI screen with 3200x1800px. How can I get ...
0
votes
0answers
26 views

Video Stream Not Being Rendered Properly v4l2loopback WebcamStudio

What steps will reproduce the problem? Setup an Image/webcamfeed/video v4l2loopback option try streaming it What is the expected output? The Image/video/webcam feed What do you see instead? Don't ...
0
votes
1answer
112 views

glassfish: Authorization has been refused for credentials [user: admin] given in this request

On Ubuntu 14.04 Tahr and Glassfish 4.1, I managed to reset my glassfish master password as so: ejb@ix:~$ ejb@ix:~$ glassfish4/glassfish/bin/asadmin change-master-password Enter the current master ...
0
votes
0answers
20 views

Specifying path to java interpreter while installing Java Wireless Toolkit

I have already installed JDK. I could run java programs through command line as well as through Netbeans IDE. Now I want to install java wireless toolkit. I have downloaded the "*.bin" file from ...
0
votes
1answer
21 views

hbase client running output “Usage: mapfile infile outfile”

I have made a simple client application in java for Hbase to connect with it and show results for some queries e.g list, scan etc. But When i run my application in eclispe, there are no errors but ...
-1
votes
1answer
91 views

Java in Chrome 34

I have installed the old version of chrome (34) because it is supposed to be able to work with java (as others have reported.) my question is, how do i get java to work in chrome 34? I have tried to ...
1
vote
0answers
58 views

How to use Firefox AppArmor profile with IcedTea Java plugin on Ubuntu 14.04?

Whenever I set up Ubuntu on a new system, I active the default AppArmor profile for Firefox via sudo aa-enforce /etc/apparmor.d/usr.bin.firefox Doing this on Ubuntu 14.04, however, makes Java ...
0
votes
0answers
16 views

Binary archives of OpenJDK for ubuntu

My goal is to have multiple version of java 6 and multiple version of java 7 installed on my ubuntu in order to do some tests with different versions of java. I found instructions to install oracle ...
1
vote
0answers
35 views

Start up a .jar GUI application from Login Screen [closed]

I have raspberry pi and I have compiled uniCentaPOS in a .jar file. However I want to start this GUI application without the full desktop. I just want to application running with the GUI. I have ...
0
votes
0answers
29 views

Xbox 360 controller shows up on jstest and configures, but doesn't work with minecraft

I recently recently installed Ubuntu 14.04 on and Acer C720 and installed Minecraft (this is going to be my son's computer). I installed xboxdrv and disabled xpad. When I used jstest the xbox 360 ...
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votes
1answer
51 views

how i can installing Jdeveloper on ubuntu 14.4? [on hold]

iam downloading jdeveloper "jdevstudio11117install.bin" on ubuntu and open terminal to installing it , and put this code "./jdevstudio11117install.bin" to install it but no install complete , ...
1
vote
2answers
81 views

How to run .sh through terminal without using Nautilus Ubuntu 14.04 [duplicate]

I have an .sh file that looks like #!bin/bash exec /usr/lib/jvm/java-7-openjdk-amd64/jre/bin/ java java -jar /home/me/myfolder/my.jar I've made this file executable and it works fine when in the ...
0
votes
0answers
36 views

Setting up Juniper VPN on 14.04

I saw this post, but unfortunately continue to have issues as seen here: Does anyone have suggestions for fixing this issue? Thanks!
0
votes
1answer
74 views

how to install java 1.5 jdk in ubuntu

I am getting this error when trying to install java 1.5 jdk sudo apt-get install sun-java5-jdk Reading package lists... Done Building dependency tree Reading state information... Done Package ...
0
votes
0answers
25 views

Setup Webgoat on ubuntu 14.04 with lamp server

Can any one give me the breif instructions for how to install Webgoat on Ubuntu 14.04 (not a server) step wise I am facing problem with setting java_home variable to java 1.5 jdk
2
votes
1answer
69 views

Using libreoffice base as GUI for MySQL database (os- ubuntu 14.04) [closed]

I have been trying to deploy one of my projects that uses jsp for the front end, tomcat7 for the server and a mysql database. I tried integrating the mysql database with the libreoffice database ...
0
votes
1answer
56 views

Mastering Chemistry and Ubuntu 14.04

For my General and Analytical Chemistry course at college there is a site called Mastering Chemistry, made by Pearson, that features different questions types. When I went to solve some problems, I ...
1
vote
1answer
108 views

Installing oracle java versions

I went to the website to download (Java Platform (JDK) 8u20 ), http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html to download ORACLE java for my machine. I was ...
0
votes
1answer
1k views

How to install Oracle Java on Ubuntu 14.04? [duplicate]

I am using Ubuntu 14.04.1 LTS, x64 architecture, and I specifically need to install Oracle Java. Now I know there are some instructions on the website which I follow but the same website does not ...
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votes
2answers
94 views

Running .jar File using JDK on Ubuntu 14.04 [closed]

I install JDK on my Ubuntu 14.04 so I can use Netbeans and Android studio. I download a .jar file in the internet and I want to run it on my PC. My problem is, I cannot find java to run this file. I ...
1
vote
1answer
79 views

MATLAB startup error ubuntu 14.04

I'm trying to run /usr/local/MATLAB/R2012a/bin/matlab on Ubuntu 14.04, but on startup it gives me the following error message: Exception in thread "main" java.lang.NoClassDefFoundError: ...
0
votes
0answers
136 views

eclipse juno crash after Ubuntu update from 13.10 to 14.04

I try to update ubuntu 13.10 in 14.04 after update ... Eclipse emitted this problem A fatal error has been detected by the Java Runtime Environment: # # SIGSEGV (0xb) at pc=0xa75bc86d, pid=3118, ...
1
vote
0answers
25 views

Apport is not creating .crash file for java crashes

I am having issues on production server, It is groovy/grails application and I am using quartz to run many crons. There is one cron which is when enabled crashes the JVM. I have no idea why. I can't ...
0
votes
0answers
37 views

jProfiler GUI not showing properly on Ubuntu 14.04

I'm not sure if this is a java problem or is related to ubuntu. I'm on an ubuntu 14.04 machine and I have both Java 6 (jdk_1.6.0_43) and Java 7(jdk_1.7.0_51). JAVA_HOME is set to java 7 and that is ...
0
votes
0answers
80 views

upgrade to 14.04 interrupted and now cant get to login screen

I was upgrading from 12.04 to 14.04.It got interrupted and now I cant get to login screen. I see the following on a black screen. could not write bytes:broken pipes: *stopping anac(h)ronistic cron ...
1
vote
1answer
388 views

JDK 8 Installation for Ubuntu 14.04 (Android Studio & NetBeans)

I downloaded jdk-8u11-nb-8-linux-i586.sh and installed it in my home folder. Then I install NetBeans, it is successful I think because I can compile my java code using netbeans. Now when I install ...
0
votes
1answer
96 views

Ubuntu 14.04 freezes when running project in netbeans 8 with jdk 7

This question seems to be a duplicate but it's not! I run ubuntu from a live pendrive only and wanted to test a netbeans project for linux. I have installed oracle's jdk 7u67, netbeans 8. When I tried ...
0
votes
0answers
12 views

How to verify if java is correctly enabled in Libre Office

I am trying to use the java environnement in Libre Office. I installed an enabled in Libre Office the version 1.7.0_65 from Oracle Corporation. I then tried to use demos sheets from the obba files. ...
0
votes
1answer
27 views

Problems running logisim on Ubunu 12.04

I have been having problems running logisim on Ubuntu. At first it worked fine but now it just gets stuck "creating a file..." when I run the program. I've tried downloading another .jar and ...
0
votes
0answers
18 views

UnsupportedClassVersionError with OpenJDK 1.6 and Mysql

Using Ubuntu 13.10 on virtual server hosted by OVH (France), Server version: Apache/2.4.6 (Ubuntu), OpenJDK Runtime Environment (IcedTea6 1.13.3) OpenJDK 64-Bit Server VM (build 23.25-b01, mixed ...
0
votes
1answer
33 views

In the process of installing Java and Hadoop, my user profile has disappeared?

So I added the following code to the bottom of profile after: sudo gedit etc/profile Code added to profile: JAVA_HOME=/usr/local/java/jdk1.8.0_20 PATH=$PATH:$JAVA_HOME/bin ...
0
votes
1answer
79 views

Java is installed but not recognized

austin@HP-ENVY-m6-Notebook-PC:~$ java -version The program 'java' can be found in the following packages: * default-jre * gcj-4.8-jre-headless * openjdk-7-jre-headless * gcj-4.6-jre-headless * ...
0
votes
0answers
69 views

Carnegie learning on Ubuntu (chromebook)

I recently invested in a Chromebook, little did I realize it wouldn't run a crucial program my online school uses. So, I installed Ubuntu so I can toggle between the two via keyboard. The Ubuntu ...
2
votes
2answers
39 views

What exactly should I set as JAVA_HOME?

I am trying to make Tomcat 7 working with Eclipse, and I am not sure if my JAVA_HOME is correct. ~$ echo $JAVA_HOME /usr/lib/jvm/default-java And there is no such catalog! I only have: ~$ ls ...
0
votes
0answers
28 views

Problem with Java Swing Code

When I write some simple java code using swing, I get some strange behavior. The screen around the JFrame is black, and initially is displayed off of the screen. I have run the same code on a windows ...
0
votes
1answer
32 views

Eclipse window is not fully displayed

Some Eclipse windows is not fully displayed. Example: New project, New Class .... It is lost some of the items. Screenshot:
0
votes
0answers
41 views

Unable to share desktop while using Webex

While using WebEx, I am not able to share desktop. An error message shows that "Java is not enabled", but I've installed jdk7.4. I am using Ubuntu 13.10.
0
votes
0answers
109 views

libGDX project generator: Build Failed : Cannot find java system compiler

while generating a project libGDX throws thid error: FAILURE: Build failed with an exception. * What went wrong: Execution failed for task ':core:compileJava'. > Cannot find System Java Compiler. ...
0
votes
1answer
43 views

Java on easypeasy [duplicate]

I have successfully installed easypeasy in an Asus EeePC. I want to use the authoring programm Hot Potatoes, which is/uses a Java application (sorry for my poor technical vocabulary). It is installed ...
0
votes
0answers
21 views

Prevent APT from overwriting custom files

My server runs a Java application that requires I replace a few java library files with ones I downloaded on my own. This has to do with JCE security extensions and isn't really relevant to my ...
4
votes
2answers
288 views

How to start a Firefox from cron?

I need to run a Java applet from a Firefox. The problem is, I need to run this Firefox from a cron. If I run from the command line and its work fine, but when put the command in the cron it failed: ...
0
votes
0answers
18 views

Suddenly the tomcat got killed and i am seeing the fatal ERROR in the catalina.out logs

Here i am attaching the Fatal Error Can anyone please explain me what is the main problem for this
0
votes
0answers
43 views

Why doesn't lsof show localhost TCP connections in 14.04?

I have two servers running 12.04.4 and 14.04.1 respectively. Both have nginx (port 80) and a Java process (port 8080). As expected, the lsof output for the Java process (sudo lsof -nP -p $PID) on ...
0
votes
1answer
50 views

how to concatenate two strings in shell script in 3.13.0-34-generic kernel

I want to concatenate two strings for the shell file im getting error when i have created the shell file in following manner could you please suggest how to get it set export ...
0
votes
0answers
29 views

IcedTea webstart applications have a taskbar

I get a taskbar on IcedTea webstart applications like below. It is there whether there are any dialogs open or not (shown with a dialog just to help identify what it is) and it covers the bottom ...
0
votes
1answer
31 views

My IDE keeps crashing instantly: How do I diagnose?

I am using Aptana, Java-based IDE. Starting today, it is crashing suddenly every few minutes. This may have to do with the fact that I recently upgraded to Xubuntu 14.04. There is no error message. ...
0
votes
0answers
32 views

“hadoop version” getting error

I'm trying to install hadoop 2.4 & jdk8 on ubuntu14.04. I'm following the links: http://codesfusion.blogspot.com/2013/10/setup-hadoop-2x-220-on-ubuntu.html I've followed carefully above the ...
0
votes
0answers
106 views

Setting up OpenGL Development using LWJGL

I recently switched from Windows 7 to Ubuntu 14.04 LTS, while running a project of mine through NetBeans I encountered: org.lwjgl.LWJGLException: X Error - disp: 0x7f3c601e80c0 serial: 93 error: ...