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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23 views

Failed to Fetch Trusty?

so here's my problem, i update every once in a while but this time it's different, it throws me an error: W: Failed to fetch cdrom://Ubuntu-GNOME 14.04.1 LTS _Trusty Tahr_ - Release amd64 ...
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23 views

SSH login glitched up

After I login to my server using ssh and PuTTY, the window closes right away. I'm currently connected to the window, because I was connected before, but when I try to type any command it shows this: ...
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0answers
14 views

Is there going to be a new PPAPI java plug in for google Chrome?

I was wondering if anyone knows if anyone is working on a new java that would work on google chrome 35+, because even though it works on google chrome 34, which i have installed, shockwave doesnt work ...
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27 views

How to set the path to xstream in Ubuntu 14.04

I am using Ubuntu 14.04, and installed my version of jdk using sudo apt-get install openjdk-7-jdk Now I installed xstream 1.4.7, but whenever I compile any java files using the package, I get an ...
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1answer
17 views

Setting up libgdx on ubuntu 14.04

I'm on ubuntu 14.04 LTS and I'm actually learning how to make games in java, I'm going to learn game development with libgdx. The tutorial says that I have to download the setup app, to put it on the ...
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1answer
27 views

How do i enable core dumps so minecraft will work

I recently updated to 1.8 im running ubuntu 12.10 and every time i try to start up it says # # A fatal error has been detected by the Java Runtime Environment: # # SIGSEGV (0xb) at ...
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17 views

How do you enable core dumps on minecraft

I recently updated to 1.8 im running ubuntu 12.10 and every time i try to start up it says # # A fatal error has been detected by the Java Runtime Environment: # # SIGSEGV (0xb) at ...
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22 views

Building reverse engineered project

I learn development for android, I would like to see how certain application is built, I also would like to adjust its UI controls positions for sole use. So, I decompiled the application and try to ...
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0answers
13 views

failed to install jdk6/7 [duplicate]

I tried to install jdk-6/7-jre through the `sudo apt-get command using. but get the http 404 failure due to the relevant package location are not right. Please helping me to escape from this issue. ...
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83 views

Help installing Matlab R2014b on Ubuntu 12.04

First of, I've just recently started using Ubuntu and I really don't know my way around it. I have installed it on my chromebook, because I need access to some programs that don't exist as chrome ...
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1answer
15 views

CloudStickyNotes.jar not working in gnome

I am trying to use this Java application called Cloud Sticky notes within Gnome, I've used it on Windows and within Elementary os without issue and I've tried to use it in 3 different versions of ...
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0answers
18 views

Java Does not work in Ubuntu on web

How to install Java plugin in Firefox? Answer right here says all you do is sudo apt-get install icedtea-plugin and need nothing else. It's completely wrong. Jre is installed, iced tea is ...
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1answer
29 views

install specific java version for 12.04

I updated my 12.04 server with latest packages among them was an update to java 1.8u20. Now I just found out my application is not running anymore because of java 1.8u20. Because of this reason I ...
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1answer
22 views

Creating a Desktop Application for Ubuntu?

I want to create a desktop application and use it on Ubuntu based distributions. I have very good knowledge on Java Desktop Applications. But look and feel of Java Desktop Applications in Linux ...
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13 views

Create socket on local computer to access device shell via adb

I'm writing an application and one of the things i'm trying to do is give the users access to the devices shell(via adb -s DEVICE_NAME shell) but over telnet/ssh. meaning, is there any way to create a ...
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36 views

Problems installing Oracle java 1.8

I'm running Ubuntu 14.04. I'm trying to install Oracle java 8. I downloaded the .rpm file published by Oracle: jdk-8u20-linux-x64.rpm and then ran the following commands trying to install it: $ ...
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0answers
29 views

Is there any annotation available for eager loading at class level?

Is there any annotation available for eager loading at class level when we are not using any mapping ? Because, I know that this is available in XML configuration where we have .... (I know ...
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1answer
44 views

JDBC Connection Pool details on Glassfish

I can get some basic information from Glassfish v4 about the JDBC connection pool from the CLI with asadmin: thufir@dur:~$ thufir@dur:~$ glassfish-4.1/glassfish/bin/asadmin Use "exit" to exit and ...
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24 views

How to create Debian source package for a JavaFx application for Ubuntu Software Center?

I submitted a native .deb file to Ubuntu Software Center, but I got below response from reviewers: Your application is not in the correct archive format. Please provide us with the Debian source ...
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0answers
19 views

Installing maven w/out X11/Dependency-hell?

I'm trying to provision my Vagrant box with some Java tools. Unfortunately, I get into dependency hell all the time. I had to use a script to dl and install Oracle Java, because openjdk-7-jdk is ...
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0answers
19 views

tomcat returns major minor version 51 (SEVERE)

My development machine has the following configuration java -version java version "1.7.0_67" Java(TM) SE Runtime Environment (build 1.7.0_67-b01) Java HotSpot(TM) Server VM (build 24.65-b04, mixed ...
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vote
1answer
39 views

Do I need to Install jdk?

I realized that my java compiler wasn't up-to-date on my ubuntu 12.04 $ sudo update-alternatives --config javac There are 2 choices for the alternative javac (providing /usr/bin/javac). Selection ...
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47 views

Ubuntu 14.04 w/ Unity - java application gui does not show

When I open certain java-powered applications, the primary GUI will not show up. However, the GUI windows for misc functions such as the "Tips and Tricks" type windows, project creation, save dialog ...
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3answers
41 views

Downloading and installing files

I'm pretty new to Ubuntu. When I first got my PC I tried downloading a client to play runescape on (Orion Pro) The file downloaded fully but never gave me an option to install? Also the same for java ...
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1answer
38 views

provide more than one processor with taskset

I am using taskset to assign CPU cores 4-7 to a java process that normally uses ~200-400% CPU. The cores 4-7 were isolated on boot so only the java process should run on them. Eventually taskset ...
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37 views

“Server not found” “Firefox can't find the server at www.%u.com.”

When launching the Firefox browser from a java application (such as Minecraft or Java Open Street Map), I get: Server not found Firefox can't find the server at www.%u.com. The command line ...
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22 views

Vuze not searching Java Errors

I just finally updated Ubuntu to 14.04 and have been manually going through and making all my programs work again. Vuze seems to be the only one I can not get to work. I got the new 5.4 version ...
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0answers
19 views

Environment Vars being changed on boot

I installed java-8-oracle the other day, and I didn't like it, so I deleted the java-8-oracle folder. I also installed java from java.com into /usr/java/jdk1.8.0_20, and set the environment variable ...
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1answer
17 views

Why there is no need to give path as in windows to reffer other application from one package

I connected mysql with c++ in ubuntu , used GCC compiler from terminal that time i didn't give any path for mysql.h. and i wanted to play video using vlcj in java swings. In the program we need to ...
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0answers
27 views

How can I use eclipse for Java in Ubuntu

I'm studying on java. Recently, upgraded to Ubuntu as my operating system. I'm very new at ubuntu/linux, SO I'm not understanding something... I installed eclipse from Ubuntu Software Center. Also ...
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0answers
27 views

Freemind java problem in 14.04

Trying to run freemind 0.90 on Lubuntu 14.04. I have installed oracle java 7 and get following error: [warning] /usr/bin/freemind: JVM flavor 'java6' contains illegal characters [warning] ...
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0answers
49 views

Bug Eclipse Luna + Java 1.8 + JFrame CRASH

I am Java programmer and am having trouble working with the JFrame, "Design" in linux, have tested various distributions .. all are having the same problem .. during the design of the windows, the ...
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0answers
70 views

I cannot run a .sh file

Here is the situation: I try to run the file smartgithg.sh I downloaded the file from this website. When I had the previous version it was running ok! If I double click the file it does not do ...
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0answers
30 views

Error: Unable to access jarfile spl.jar for stanford portable library

I'm trying to install the Stanford library for Harvard's CS50 but I'm running into a few problems... I've got the .h files in usr/local/include/spl and I've got the libcs.a in usr/local/lib but I'm ...
1
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2answers
88 views

Shell script running but not opening terminal [duplicate]

I'm having a problem executing a shell script in ubuntu, the script is set as executable and I enabled the execute instead of view option in Nautilus and the script does what it's meant to do which is ...
1
vote
1answer
26 views

Where is `libX11.so.*` corresponding to LXDE?

I'm trying to link Matlab to the latest JRE, and I'm getting an extremely slow GUI for which the solution seems to be to link Matlab to an older X11 library. Since the problem is essentially caused ...
0
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1answer
42 views

Eclipse does not open

I've installed Eclipse 3.8 through Ubuntu Software Center and when I open it the loading window pops up and freezes. Eclipse never opens... When I try to launch eclipse from Terminal it doesn't show ...
0
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1answer
73 views

Problem with Java and Ameritrade “thinkorswim”

Ubuntu version 12.04 Java version "1.6.0_32" OpenJDK Runtime Environment (IcedTea6 1.13.4) (6b32-1.13.4-4ubuntu0.12.04.2) OpenJDK 64-Bit Server VM (build 23.25-b01, mixed mode) Here is the problem. ...
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1answer
65 views

CrashPlan desktop app suddenly terminated after Splash Screen

CrashPlan desktop app suddenly terminated after Splash Screen This was a fresh CrashPlan install on Ubuntu 14.04 amd64 with Oracle Java 7 JDK. Most of /usr/local/crashplan/log/....log was not ...
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0answers
47 views

Desktop shortcut and lock to launcher for phpstorm failed to launch program

I have just installed phpstorm, phpstorm can be opened via command line but I can't open the program via launcher or desktop shortcut and nothing error shown. - My phpstorm.desktop code : [Desktop ...
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0answers
15 views

Alternatives to StartupWMClass in .desktop

is there any alternative to StartupWMClass in order to group a java application under the same launcher in unity? My problem is related to the fact that some applications, such as SqlDeveloper 4, ...
0
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0answers
27 views

Java & High CPU usage

I use a certain java application to trade the stock market and it consumes 90% my CPU power. And the CPU temp usually remains around 90c. This is a real headache. What causes this problem and what are ...
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0answers
15 views

How do I turn a jar file into a package?

I have a jar file that contains my app and I want to be able to make this into a deb package so that someone can simply type apt-get install protocasedesigner and have it install automatically onto ...
1
vote
1answer
20 views

Cannot install g++ 4.8 on OpenVZ

I have everything set, but doing apt-get install g++4.8 gives me the following java (!?!?!?) related error. Setting up ca-certificates-java (20110426ubuntu0.10.04.2) ... Error occurred during ...
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votes
0answers
37 views

Ubuntu 14 JVM - Could not reserve enough space for the card marking array

After upgrade to Ubuntu 14, I have issue with all JVMs crashing. I reinstall Java (oracle and openjdk versions). I spend sometime tuning the JVM heap parameters, and now finally, I can run Java ...
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votes
1answer
84 views

OpenJDK patched with font fixes mess up google chrome fonts

I've installed the patched OpenJDK in order to get proper font rendering in WebStorm 8. It works fine but i realized chrome has some font rendering problems since then. I only see this in chrome so ...
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2answers
120 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 ...
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2answers
98 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
210 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 ...
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0answers
25 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 ...