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
165 views

export PATH doesn't work correctly

I have a problem with $PATH export. The only place I found where I modify $PATH is /etc/environment: ANDROID_HOME="/opt/ADT/adt-bundle-linux-x86_64-20130522/sdk" ...
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0answers
61 views

Unable to Access Jpcsp.Jar

I cant get JPCSP to run it gives me this error- seal@seal-Dimension-4700:~$ start-linux-x86.sh Error: Unable to access jarfile bin/jpcsp.jar I have java 7 installed idk whats wrong.
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0answers
51 views

Eclipse SVN fail to show history

in Ubuntu 13.10 after system updates (probably Java update) SVN (SVNKit) suport in Eclipse goes wrong I can do Update or Commit But I try Compare With Latest From Repository or try to show History ...
3
votes
1answer
2k views

Ubuntu - saying your security settings have blocked an application from running with an out-of-date version of java

I have this new problem since 2014 begin. I cant remotely login to this enterprise network for giving them support. Its keep showing this new error. How to fix it please? EDIT:
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1answer
75 views

Problems running java websites

I'm having problems with openjdk7 and icedtea7. In one computer, which works with ubuntu 13.10, I have installed openjdk7 and icedtea7. In the other computer, which works with ubuntu 12.04 and is an ...
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votes
1answer
78 views

how can i make a .jar executable + I'm on ubuntu Studio 13.10

how do i make my mine craft executable.Ive tried running it in terminal and many forum answers. when I get to mine craft and i go into properties. and i look for allow to execute it doesn't appear i ...
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0answers
82 views

Problem installing Microsemi LiberoSoC on Ubuntu

I asked this question on the Electronic Engineering StackExchange but could not find the right answer and the question was closed as it was flagged unrelated. I am trying to install the latest ...
1
vote
1answer
1k views

I can't run applet on my firefox browser

I am a new user in Ubuntu 13.10 , and I want to run an applet so,I installed Java Develop Kit 7u45 with netbeans 7.4 and I can run applet from netbeans but not from browser because of security ...
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1answer
80 views

Simple bash script does not want to start at reboot

I've build a Play Framework Application (cool Java/Scala Web Framework) and would like to start it automatically like Apache2 or MySQL Server. For this I wrote a simple Bash script and did chmod +x on ...
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votes
2answers
27 views

Could someone explain to me in simple terms how to install this specific Java platform?

I am in no way adept with Ubuntu. I've installed it on my Samsung Chromebook in order to play Minecraft, but every version of Flash I've tried will not work. I figured it was because I needed this ...
2
votes
1answer
217 views

Netbeans won't open

This is probably my own fault, I removed and reinstalled java on my computer, this is what happends: jeggy@jeggy-XPS:~$ netbeans # # A fatal error has been detected by the Java Runtime Environment: ...
1
vote
1answer
220 views

How can I use Java Mobile Phone's camera as a Webcam?

In windows there is a software called "Mobiola webcam" for use a mobile cam as a webcam . Is there any way for Linux (ubuntu 12.04 LTS) ?
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0answers
53 views

cannot download any software

this is the worst experience i am writing i had with ubuntu. I have a virtual machine running ubuntu 12.10 and connected to internet via NAT , internet is used via domain. now to connect to internet ...
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votes
1answer
102 views

Java Process Stops Suddenly

This is something I couldn't find a solution at all and quite weird. I have Java process that is started by Openbox. This has been working for about an year and now after some unspecified time Java ...
1
vote
1answer
37 views

Are there any reliable sources with more frequent jdk icedtea package releases?

I use the canonical repository for retrieving updates from the jdk icedtea, but it seems that it is lagging a lot behind what is supposed to be the latest stable version as per the icedtea website ...
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0answers
118 views

CrashPlan app not launching

it is a very similar problem to that described here: Crashplan not starting. Fails to find swt-gtk However I have not succeded at resolving this issue. The error I get in ...
0
votes
1answer
97 views

How to Install apropraite Eclipse on ubuntu 12.04 LTS?

I want to know how can i install Eclipse on Ubuntu 12.04LTS as I'm new in both and want Eclipse platform suitable for my java version "1.6.0_38" Java(TM) SE Run-time Environment (build> ...
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0answers
12 views

ubuntu 11.3 is giving Unable to locate package openjdk-7-jdk exception [duplicate]

i am using ubuntu 11.3 and i have installed it is E drive in my pc.so now i want to install java 7 for this os ,i am using this command but it gives an exception to me... sudo apt-get install ...
1
vote
1answer
51 views

How to run a program automatically on printing

I developed a simple application that show on screen my printers ink levels. I'd like to run this program automatically every time that Ubuntu send to the printer the print command. Can anybody help ...
1
vote
2answers
268 views

Minecraft exit code 134

So just starting the other day for some reason when I click play on the Minecraft launcher it will close and re-open so I checked my development code and get this error: Game ended with bad ...
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votes
0answers
38 views

LTS 12.04 FTBFS without default-jre: “You must specify a valid JAVA_HOME or JAVACMD!”

I'm on 12.04 LTS, trying to rebuild some Java packages (e.g. groovy) to avoid depending on java6. I've apt-get source groovy, and change the package Depends: line to allow openjdk-7-jre-headless (and ...
0
votes
0answers
44 views

Trying to install Oracle 6u4 on Ubuntu 13.10 and cannot find the libnpjp2.so browser plugin

I need Oracle's Java 6u4 to run a specific web applet for work. I've downloaded the .bin for 64-bit Linux from Oracle's website, and went through this AU answer. Everything seemed to be going fine, ...
2
votes
0answers
155 views

Pogo.com games won't work, says outdated java

I am trying to get my Ubuntu 12.04 laptop to be able to run games on pogo.com First none of the games on pogo would work because of outdated flash. Then I learned of google chrome with pep flash and ...
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vote
2answers
76 views

Unistall Eclipse installed in /opt

I need Java Eclipse, but accidentally installed the C++ one using the steps from here Installing Eclipse Kepler and Java JDK How do I actually remove the C++ one completely? I tried just removing the ...
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0answers
124 views

Not able to launch Rundeck in ubuntu 12.04 [closed]

Not able to launch Rundeck in ubuntu 12.04 downloaded jar and ran the jar please help me to resolve this issue. its running fine in windows machine, shiva@nandu:~/downs/Jan-2013$ java -jar ...
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0answers
281 views

Android sdk manager permission denied

I am setting up eclipse and ADT everything is working fine JAVA, android virtual devices and everything except the ADT sdk manager it says permission denied. /home/yousaf/android-sdks/tools/android: ...
0
votes
1answer
104 views

glassfish updatetool error loading libpangoxft-1.0.so.0

I've installed glassfish using the intaller downloaded from the home page of the program. When I try to run updatetool I get the following error: GlassFish Update Tool does not support running in ...
1
vote
0answers
41 views

How to get virtual console when ALT+CTRL+F1-F6 not working?

I wanted to install JRE latest. When I had Java (TM)... So I purged java* next time, I restart the system, I get a login screen. but after passwd given, it says failed to load session ubuntu. I ...
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votes
0answers
21 views

Problem installing software open cyc

I am currently running Ubuntu 12.04.2 which was updated some 100 days ago. It is a laptop of Dell inspiron 1545 series. I am getting stuck while trying to install Open-cyc software when run the ...
0
votes
2answers
638 views

I'd like some help installing and running Minecraft on Lubuntu 13.10 [duplicate]

So, just today I installed Lubuntu 13.10 on my piece-of-crap laptop and I absolutely LOVE how fast it is. I installed Java 7 successfully, and I downloaded the Minecraft.jar (Minecraft fo ...
1
vote
2answers
61 views

How do I change my default Java directory?

I am new to Ubuntu and am trying to set up Java to run and compile programs. As I am very fresh, I am not sure how to tell which version I am using but file /sbin/init returns: ELF 64-bit LSB ...
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0answers
48 views

Configuring Geany to Execute files/packages in a seperate folder

I recently downloaded Geany onto my new Ubuntu machine and I am very satisfied with it overall, but after days of fiddling with the Build Commands, I am still unable to Execute .class files outputted ...
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0answers
135 views

How do I set up Java path? [duplicate]

I want to set up Java in my PC running Ubuntu 12.4 LTS with 64 bit architecture. I followed different posts on this site to do the same but I am confused, whilst I try to navigate to usr/lib/jvm I see ...
0
votes
1answer
25 views

Ubuntu server and Java

I'm trying to host a Runescape private server on one of my old dell machines and i'm just about to install java now...Should i install JRE or JDK and in what directory should I install them to? Does ...
0
votes
1answer
723 views

Minecraft Launcher Crashing

I just downloaded Minecraft on Ubuntu 12.04 lts. The launcher opens, but when I click play, it crashes and reopens with this error report. ---- Minecraft Crash Report ---- // Surprise! Haha. Well, ...
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0answers
46 views

Java Swing text boxes won't accept pinyin in ubuntu 13-04

In Ubuntu 12.04 and earlier I could use Pinyin input into Java Swing text boxes using ibus. In 13.04 I can't choose Pinyin input, only English when the Swing box has the focus. Other apps are okay ...
0
votes
1answer
66 views

Need help installing java jre

I need help installing java NOT THE DEVELOPER VERSION I can only find about the jdk here. Help? Is there easy installers anywhere?
0
votes
1answer
47 views

Struggling with build commands in Geany

I recently installed Geany on my Ubuntu machine and I'm looking to compile and run my .java and .class files in specific folders, but I've hit a brick wall. Coming from Windows I set the Compile build ...
0
votes
0answers
20 views

Eclipse IDE acting funny [duplicate]

I installed Eclipse Juno on two different machines (a) 32 bit and (b) 64 bit. Both had OpenJDK working. In one, the pull down menus of the Eclipse IDE does not work, and in another, the pull down ...
0
votes
0answers
31 views

Junit/Junit4 problem

Problem: The project uses a class library called "junit_4", but this class library is not currently defined locally. Solution: Click Resolve to download or otherwise automatically define this library. ...
0
votes
0answers
28 views

Select a JVM (Java Virtual Machine) on a per program basis

I recently had to select openjdk7 as the default Java implementation on my Ubuntu 12.04. I had to do this because some Eclipse plugins required Java 7 in order to work correctly. I would like to know ...
0
votes
0answers
86 views

vuze: 0 users — but was working fine before clean install!

Vuze gives an error that "0 users" are connected, and a firewall error. I don't think it's the network, because the same network was working fine just a few hours ago. Vuze was working perfectly up ...
1
vote
0answers
103 views

Removed JDK6, installed JDK7. JAVA_HOME broke and javac not installed

I am finding that the javac is not in the java-7-openjdk-i386 package. Problem 1: $ javac The program 'javac' can be found in the following packages: * default-jdk * ecj * ...
0
votes
1answer
48 views

Shutting down the PC from Java application

I am trying to shut down my Ubuntu PC using a Java Application, but nothing seems to happen. Following is my code: Runtime runtime = Runtime.getRuntime(); try { Process proc = runtime.exec("sudo ...
0
votes
0answers
125 views

Eclipse auto shutdowns when creating new project

When I click finish on a new project in Eclipse which I installed with this command sudo apt-get install eclipse-platform. This popup window comes and no matter if I choose Yes or No it closes the ...
0
votes
1answer
35 views

Updating java from IBM to Oracle

I have IBM java installed on my xubuntu 12.04 machine.I want to change it to oracle java.I downloaded jdk1.7.0_45 and extracted it to /usr/local/java.Then I edited the /etc/profile file as follows: ...
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votes
3answers
2k views

Problems with Eclipse and updated Java version

I'm new in Java. I've installed Eclipse and everything was ok till the moment I've updated Java from 1.6 to 1.7. But today when I tried to open Eclipse I've got the following problem: *JVM ...
0
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0answers
58 views

Can't find the deployed application in List Applications in Tomcat 6

I have deployed two war files for Java Sesame: openrdf-sesame.war and openrdf-workbench.war and found them on the List Applications in the Tomcat Web Application Manager. When I restarted the Tomcat ...
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0answers
27 views

How to install java for eclipse europe CDT

I have Eclipse europe CDT installed on my ubuntu system. I now want to add JDT to my eclipse so I can run java programs. I allready ran the command sudo apt-get eclipse-jdt and it says I allready ...
0
votes
1answer
52 views

Problem running .jar as excetutable— i'm confused

I'm new here and relatively new to linux. Running Ubuntu 12.04 on a dell xps m140. I am trying to run a .jar 'applet (is that the correct word?). It is a server to use my android as a wireless mouse ...