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 ...

learn more… | top users | synonyms

0
votes
0answers
5 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
9 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
7 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
5 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 ...
0
votes
1answer
24 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 ...
0
votes
0answers
17 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
10 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 ...
-3
votes
0answers
15 views

i have installed java jre 7 installed on ubuntu14.4.1 but error your security setting have blocked self signed application [closed]

type alt+f2 and type jcontrol and edit security settings of java in there and enjoy.
1
vote
0answers
14 views

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

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
12 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 ...
-2
votes
1answer
17 views

how i can installing Jdeveloper on ubuntu 14.4?

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
39 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 ...
-1
votes
0answers
46 views

I want to learn Java [closed]

I want to get my Java programming skills up to speed. I'm basically looking for something that I can work through and thereby learn java coding techniques. I've had a look at the Ubuntu Software ...
0
votes
0answers
21 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
44 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
11 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
41 views

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

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
0answers
82 views

Can't install MATLAB 2014a on Ubuntu 14.04 [closed]

When I run the installation file, the terminal shows me the following: Preparing installation files ... Installing ... /tmp/mathworks_5699/sys/java/jre/glnxa64/jre/bin/java: 4: ...
0
votes
1answer
30 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 ...
0
votes
0answers
6 views

Change a JPanel to another on a JFrame. How? [migrated]

I have a JPanel (panelOne) on a JFrame (frame). On the panelOne I have two buttons and I like to, If I pushing one button the JPanel will change to another. But how? I can't access the frame from ...
1
vote
1answer
65 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
123 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 ...
-1
votes
2answers
56 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
42 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
43 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
9 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 ...
-1
votes
0answers
37 views

Does jenkins work with apache?

Hi I have a ubuntu server with apache running. ** i do not have tomcat** . i installed jenkins using wget -q -O - https://jenkins-ci.org/debian/jenkins-ci.org.key | sudo apt-key add - sudo sh -c ...
0
votes
0answers
18 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
50 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
93 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
39 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 ...
-2
votes
0answers
20 views

java wont wont work [duplicate]

I cant get java to work.I have a young one who plays games on nick online and if I would have known java didn't work I would never have used it.ugh help.I followed all steps given but still nothing
0
votes
0answers
11 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. ...
-1
votes
0answers
29 views

Integrating Apache Tomcat in Netbeans 8

I need to integrate Tomcat in Netbeans 8. I tried this Installed tomcat7 via Terminal. But the webapp manager is not found when a refer to localhost:808/manager/html So i removed it. But ...
0
votes
1answer
16 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
12 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
20 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
0answers
16 views

No Tomcat option in the preference of eclipse kepler

So, I downloaded The Eclipse Kepler SR2, and followed this link But now I open my eclipse and go to window>preferences but there is no tomcat option for me to configure. I previously used to use ...
0
votes
1answer
44 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
56 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
29 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
22 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
25 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:
-1
votes
0answers
18 views

Android Studio doesn't launch (arm chromebook)

I have recently installed ubuntu with xfce on my arm chromebook, when I try to launch android studio (which I downloaded from a ppa : Following this article I then launched it, it said it didn't like ...
0
votes
0answers
26 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.
-1
votes
0answers
5 views

My game (Minecraft) doesn't launch? [duplicate]

when I launch Minecraft in Ubuntu, no window is showing up but the game is working. I don't have any error.
-1
votes
0answers
18 views

How to disable Preventing RIAs from Being Repurposed

I have problem running my java applet without java warning. How can i disable the below warning?. I run this page from cron so that it will automatically launch the java applet, but due to this ...
0
votes
0answers
66 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
28 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
19 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 ...