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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I am not getting .bashrc file on Ubuntu

I'm struggling a lot to install JDK in Ubuntu. I have these steps followed: Downloaded jdk-8u73-linux-i586.tar.gz and extracted the file. Placed jdk1.8.0_73 in /usr/lib/java. Ran the scripts below: ...
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46 views

IcedTea plugin can't run applets

After I allow IcedTea to run a Java applet on Firefox,I get the following detailed error I just installed Java and IcedTea on Firefox,all latest versions. Thanks for your help.
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32 views

32bit firefox on 64bit ubuntu freezes

Currently I was trying to install juniper vpn on Ubuntu 15.10 64bit. Our site's juniper client requires 32bit. I installed 32bit firefox + 32bit oracle-jre8 on linuxmint previously. It was working. ...
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38 views

Jstock: /usr/bin doesn't exist even if it exists

Ubuntu: 14.04.4 LTS Java Version: 1.8.0_74 I installed Jstock (1.0.7.13) via this: http://jstock.org/help_install_upgrade.html#install-linux So I start the programm via ./jstock.sh When I start ...
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vote
1answer
75 views

Switch between multiple java versions

While installing Android Studio on Ubuntu 14.04 I get the message that my java version (javac 1.7.0_79) is causing problems. I found a solution of how to install a newer oracle version of java: sudo ...
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26 views

unable to reference a jar file (algs4, drjava)

I've been trying to learn Java on my own and using http://algs4.cs.princeton.edu/code/ as my resource. Unfortunately, I haven't been able to figure out how to set drjava so that it can properly ...
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1answer
73 views

Problem with Java and JavaScript

So tomorrow I'll be doing some labs for MySQL certification, and since in my country I can't get class training I had to choose Training On Demand (TOD) which is a good way to learn (You have recorded ...
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1answer
18 views

Why is stdin/stdout failing with gplay on ubuntu?

I am trying to change gplay's volume level programmatically in a Java app. The video plays fine; I see gplay's menu; I get my first "Playing" prompt, and I write a "v" for "[v]Volume" but I never see ...
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1answer
91 views

How to install the latest stable version of 'Mars Eclipse' on machine running on Ubuntu 12.04 LTS?

I'm a PHP developer and I'm using SublimeText editor for PHP coding on my machine that runs on Ubuntu Linux 12.04 LTS(64-bit) operating system. I don't have installed any software related to ...
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2answers
98 views

How can I run a Java program in background?

I try to make a init.d script which should start this java command: java -cp ./:/opt/glassfish/domains/domain1/lib/*:/opt/glassfish/lib/* com.name.it.svcimpl.OrderRequestDispatcher & With & ...
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1answer
207 views

Installing Java on Ubuntu 15.10 [closed]

I'm installing Java on Ubuntu 15.10 when I typed sudo add-apt-repository ppa:webupd8team/java The result: Traceback (most recent call last): File "/usr/bin/add-apt-repository", line 95, in ...
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1answer
44 views

one JVM only — how?

I had to install the Oracle JDK to get Netbeans to launch (forgot about umake). Now that I have the official JVM, I want to remove each and every other JVM -- all the OpenJDK stuff, including ...
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2answers
33 views

TDAmerica trading platform won't install after updates to Oracle 8. Help!

I support my father who is 900 miles away. Since it became unrealistic to clean his windows machine of numerous spyware and sales toolbars, I gave him 14.4 LTS. All has been wonderful. Calls are now ...
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2answers
172 views

Cordova failed to run Java -version

When I run in the terminal Java -version, the output is: java version "1.7.0_95" OpenJDK Runtime Environment (IcedTea 2.6.4) (7u95-2.6.4-0ubuntu0.15.04.1) OpenJDK Server VM (build 24.95-b01, mixed ...
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0answers
25 views

Executable jar - working directory

I am using Ubuntu 14.04. I have executable jar file. Checked Allow executing file as a program option, so I can open it with double click. But then it seems, that program takes my home folder as it's ...
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1answer
39 views

Broken JRE installation, any advice how to fix?

It's a long bogus saga to explain how I got here, but I've got a bad partial install of JRE 1.8.0-71 on my Ubuntu machine, and --force-remove-reinstreq isn't working: # sudo dpkg --remove ...
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0answers
52 views

Minecraft hangs itself when launching

When I start minecraft, I get the following: marc@marc-desktop:~$ java -jar '/home/marc/Schreibtisch/Minecraft.jar' Bootstrap (v5) Current time is Feb 19, 2016 8:42:21 PM ...
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1answer
19 views

problem with opneing omni.ja file

How to open a .ja file. Do I need any app for it? e.g : /usr/lib/thunderbird/omni.ja . its a thunderbird archive file and archive manager shows an "archive type not supported" error.
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1answer
116 views

Installing 32 bit App Inventor 2 on 64 bit Lubuntu 15.10

I have installed App Inventor 2 using a Debian package and these instructions. The software is 32 bit and my computer is 64. Apparently also needed Oracle JRE for App Inventor and finally got it to ...
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0answers
8 views

Oracle Java not found [duplicate]

I have installed Oracle Java 8 (64 bit) in /usr/local/java, but it is not found when I do java -version in the terminal. Am using Lubuntu 15.10. whereis java gives the following output: java: ...
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24 views

disable all netbeans modules?

How do I disable all Netbeans modules? thufir@mordor:~$ thufir@mordor:~$ netbeans --list OpenJDK 64-Bit Server VM warning: ignoring option PermSize=32m; support was removed in 8.0 ^C ...
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1answer
56 views

Installing a java application on Ubuntu/Linux

I find "a lot of" howto install Java on Ubuntu/Linux but little on the "recommended way" to install a java application for an end-user. I understand how to run a Java application from the command ...
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2answers
40 views

how can i convert a .jar to ubuntu-freindly code? [duplicate]

i am trying to figure out how to convert a .jar minecraft file into Ubuntu-friendly. the problem is, that Ubuntu does not recognize java.
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1answer
92 views

Enable Jayatana for Android Studio using commandline in Ubuntu 15.10

In Ubuntu 15.10 Jayatana is disabled by default. There are several ways to enable it. And I would like enable Jayatana only for Android Studio, using command line. So I write in bash ...
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2answers
42 views

Minecraft Launcher invisible; preview works, alt-tab/alt-space doesn't

This may be a problem with java applications in general. Problem began at some point after a restart, subsequent restarts have not fixed it, nor has uninstalling/reinstalling java (openJDK-7) and the ...
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0answers
23 views

Maximum socket connection

I installed tomcat7 on Ubuntu server and I deployed my atmosphere (http://async-io.org/) application. By running the sample, I noticed that my server stops receiving incoming socket connection after ...
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1answer
73 views

Why does Skype obsolete so many Java packages and how can I have both?

$ apt install skype Reading package lists... Done Building dependency tree Reading state information... Done The following packages were automatically installed and are no longer required: ...
3
votes
1answer
132 views

./run.sh: line 1: java: command not found

I'm trying to install worksnaps client so I can start working on a project. I'm running Ubuntu 14.04 LTS 32bit system. Installation and Configuration for worksnaps are simple : Download the ...
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0answers
71 views

Build hybris code on ubuntu

I receiving below error while building hybris code on ubuntu. earlier I was able to build same code on ubuntu machine but i have created newly machine i m not able to build code due to below error. ...
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0answers
19 views

Why Does Ubuntu Ship Down Level Java JRE

Even on Daily Builds of Ubuntu 16.04, Java incorporated on all builds is less than current GA Supported Version 8. Manual Installation of Java 8 requires a rather lengthy 175MB archive download. Why ...
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1answer
76 views

How to install sbt in its latest version in Ubuntu 14.04?

I am facing this Spark problem, after installing sbt like this. How to proceed please? When hitting tab to this: sudo apt-get install s I do not see any sbt package.
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55 views

Executing .sh file for Vassal engine returns “java: file not found”

I just installed Ubuntu, after having used Linux Mint for a year or two. I was hoping to install and use the Vassal strategy game engine (from vassal.org), which worked fine in Mint LMDE. However, ...
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vote
1answer
140 views

Unable to launch Spark

I followed this answer. I am getting this error: spark-class: line 86: /usr/lib/jvm/java-8-oracle/bin/java: No such file or directory And to my surprise, I have: gsamaras@gsamaras:/usr/lib/jvm$ ...
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0answers
25 views

Can't import Eclipse project in Netbeans

When I'm trying to import an Eclipse project to Netbeans in Ubuntu it gives me the following error
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1answer
75 views

Installing java

When I am installing java I am getting this problem how can I resolve it? Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be ...
0
votes
1answer
71 views

How to make shell script restart Java if any thread crashes? [closed]

I have a multi threaded Java program. Ideally it should run once and successfully terminate. Unfortunately, sometimes one of the threads crashes, such as by throwing DivisionByZeroException. Since ...
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0answers
31 views

Oracle JAVA IDEs freeze

I experience a freeze since few months. I'm using Phpstorm and since june I has to downgrade java (oracle, phpstorm can't work with openJdk) jdk from 8 to 6 to avoid a freeze when the IDE is indexing ...
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1answer
62 views

Running LanguageTool

I am trying to run LanguageTool in the current version 3.2 with Ubuntu 15.10. What I get with java -jar /opt/LanguageTool-3.2/languagetool.jar is Exception in thread "main" ...
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2answers
48 views

How i can run java from terminal? [closed]

I've copy the java from downloads folder to the bin folder and I've tried so many ways to set it. So can just type java in terminal. But it always not working. Please help me.
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87 views

HBase and Java_HOME

I have set JAVA_HOME. Nevertheless HBase doesn't recognize it. vagrant@precise32:/usr/local/hbase-1.0.3$ echo $JAVA_HOME /usr/lib/jvm/java-1.7.0-openjdk-i386 vagrant@precise32:/usr/local/hbase-1.0.3$ ...
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0answers
54 views

Ubuntu 14.04 Juniper network-connect crashes right after starting

My juniper network-connect tool crashes just after launching. It used to work until last week and has suddenly stopped working (probably due to recent update). $ ...
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0answers
100 views

sudo apt-get install showing error

sudo apt-get install shows the following error: Reading package lists... Done Building dependency tree Reading state information... Done 0 upgraded, 0 newly installed, 0 to remove and 2 not ...
0
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1answer
25 views

Why is this apt configuration necessary for installing Java on vagrant?

Here is my bootstrap.sh apt-get update apt-get install -y python-software-properties add-apt-repository -y ppa:webupd8team/java echo oracle-java7-installer shared/accepted-oracle-license-v1-1 select ...
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votes
1answer
42 views

what are these outputs in terminal while installing/upgrading jdk

I've been installing jdk i have more than single problem 1.in 1st line when i try to set alternative of java it said java is already managed what does this mean 2.why i have to type java1, javac1. ...
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1answer
80 views

Ubuntu 15: after installing and configuring java, echo $JAVA_Home is working, Java -version is not working [duplicate]

I have installed the oracle Java 8 and configure it. cmd-> echo $JAVA_HOME /usr/lib/jvm/oracle_jdk8 cmd-> echo $PATH ...
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3answers
42 views

Java Process takes more memory and Machine stop working

I am new to Linux, I am using Ubuntu 14.04LTS, But suddenly my machine stop working.I run $ free -m and get results total used free shared buffers cached Mem: 7897 ...
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1answer
52 views

OpenJDK not running .jar files

I've downloaded the .jar file for Minecraft, and I installed OpenJDK 6 from the software center, and I tried with 7 as well, but it keeps throwing the message "The file ...
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0answers
43 views

Problem with jar file resolution

Sorry for the poor explanation but i'll try and get my message across with photos. Whenever i try and open a jar file on my computer it open up minimized on the screen and i cant drag it out to the ...
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0answers
67 views

Java JVM keeps crashing on Ubuntu

I'm rookie in Linux world (almost 5 months) and i found it very useful OS. To begin with, i've installed Java 8 via webupd8team ppa: sudo add-apt-repository ppa:webupd8team/java sudo apt-get ...
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1answer
26 views

Eclipse showing an error while open

I installed eclipse in my Ubuntu pc yesterday. Then when I tried to open it, there appeared an error like this: