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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Matlab 2014a install on Ubuntu 12.04 Issue

When trying to run the install script I get this error message: Preparing installation files... Installing... /tmp/mathworks_1095/sys/java/jre/glnxa64/jre/bin/java: 4: ...
-1
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1answer
115 views

Why does java not work in chrome in ubuntu? [duplicate]

I know it doesn't work, and I just want to know why.
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0answers
79 views

Ubuntu, JavaFX, A fatal error has been detected by the Java Runtime Environment

I have already asked this question here: link to StackOverflow I have installed Ubuntu 14.04.02 x64, oracle JDK 1.8.4 and I try to run JavaFX8 project but I get this message in eclipse(not every time ...
2
votes
1answer
203 views

Maven: JAVA_HOME is not defined correctly

I've installed and configured Maven and Java. I can successfully run mvn spring-boot:run But when I run sudo mvn spring-boot:run I am getting Maven: JAVA_HOME is not defined correctly When I ...
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0answers
55 views

Android SDK Manager slf4j error

I'm using Ubuntu 14.04 and want to run Android Studio. I have installed everything needed based on tutorials such as Java, Android-SDK-linux, etc. I set the environment variables in .bashrc and ...
1
vote
1answer
863 views

WebEx error: Java is not working

I am trying to join a WebEx meeting. However, when I try to do that, it gives me an error: Java is not working. To have the best experience joining meetings, Java must be installed on your ...
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votes
1answer
125 views

Unable to run Gephi 0.8.2 on Ubuntu 14.04 LTS 64-bit

I know there are some discussions on this topic already, but none seem to work for me. I have the Java JDK installed: java version "1.8.0_40" Java(TM) SE Runtime Environment (build 1.8.0_40-b26) ...
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votes
2answers
183 views

Installing Java 8 and Setting environment variables

I just completly shifted to Ubuntu from Windows 7. I am a java developer and now I need to install Java 8 JDK and JRE. I installed 64 bit ubuntu 14.04.02 and it seems like there are lot of ways to ...
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0answers
47 views

Error stopping tomcat7

I'm trying to install tomcat7 and I get the following error when I try to stop it. This occurs after I add webapps to server.xml. jaramillo@jaramillo-HP-455-Notebook-PC:~$ sudo /etc/init.d/tomcat7 ...
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votes
1answer
256 views

Install or run FlashTool?

Okay, I've downloaded "flashtool-0.9.18.5-linux.tar.7z" from the Xda Forums ( http://xda-forum.blogspot.nl/2015/03/how-to-install-xperia-firmware-using.html ) and I have tried to run "x10flasher.jar" ...
1
vote
1answer
126 views

How to make jar file executable from anywhere without root permission

I made a jar file and now want to execute it from any directory. To do that I simply put it in /bin and made it executable, but I am not able to execute it and get this output error: Error: Unable to ...
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votes
1answer
129 views

How to install Hadoop on Ubuntu 12.04 32-bit?

I want to install hadoop on my Asus laptop running Ubuntu 12.04. When I tried to format the new File system, at that time I got an error 1. $ hadoop namenode -format or 2. $ hdfs namenode ...
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0answers
33 views

Ubuntu crashing too often

right some little days, I bought a dedicated server (physically, I mean), then, installed Ubuntu 12.04 LTS. All working well (well as it can be taking in mind that it's running in a simple house, ...
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votes
2answers
28 views

Minecraft Voltz Server Error

Hello I have run multiple servers before including voltz, but these last few days I haven't been able to get this server to run on my Ubuntu server 12.04 for some reason every time I start it I get ...
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votes
1answer
135 views

Cannot install octave on Ubuntu 14.10

I try to install octave on ubuntu 14.10 by $ sudo apt-get install octave Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be ...
1
vote
1answer
38 views

New shell terminal points to different bash_profile [closed]

When I launch new terminal it points to some different bash profile. Here in my $PATH are set to default, $JAVA_HOME is blank When I source my .bashrc and and .bash_profile located at home then I am ...
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votes
0answers
41 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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votes
2answers
47 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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0answers
44 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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votes
1answer
244 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: ...
1
vote
1answer
95 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 ...
0
votes
0answers
166 views

Setting JAVA environment variable [duplicate]

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
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1answer
86 views

Can't set arguments in Eclipse to define Tomcat

I've downloaded Eclipse Luna and Tomcat 7 in Ubuntu 14.10. I put them into my user folder. Eclipse in Eclipse folder and Tomcat 7 in Tomcat folder. So when I try to register a argument in my Tomcat 7 ...
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votes
1answer
325 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 ...
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0answers
37 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 ...
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2answers
62 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
33 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
18 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 ...
0
votes
3answers
274 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
29 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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votes
1answer
378 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 ...
0
votes
0answers
88 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
42 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. ...
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0answers
191 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
1answer
56 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 ...
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votes
1answer
238 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
280 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
90 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
2
votes
0answers
210 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
428 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
228 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
1answer
116 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
108 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 ...
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2answers
147 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
61 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
4k 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
39 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
59 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
0
votes
1answer
70 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
58 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 ...