Tagged Questions

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
14 views

how to test java package in terminal?

I have a router package which contains IPAdress.java, Packet.java, Node.java and Test.class files. I navigated to the package with cd Desktop and then compiled each single .java file with javac ...
0
votes
0answers
12 views

Hard time on posting on Ebay

I'm trying to sell stuff on ebay and I'm having issue with JAVA "component" that doesn't work & I cant complete or save my listing. Chrome is a no go and firefox will open a java "popup" but with ...
0
votes
0answers
13 views

High CPU utilization

I have noticed recently a high CPU utilization in Ubuntu. It seems to occur often when I use Eclipse which is a java-based IDE, but I have noticed it occurring even when Java is not running. I have ...
0
votes
0answers
10 views

Message: JAXP00010001: The parser has encountered more than “64000” entity

I'm running CKAN.org on Ubuntu 12.04 LTS. Perfoming certain requests results in an error in the apache-log: [Thu Oct 30 13:51:15 2014] [error] [client 127.0.0.1] SearchIndexError: HTTP ...
-1
votes
0answers
15 views

How to run a java program on boot [duplicate]

I wrote some java programs which run continuously to do some maintenance work. But I need to start them individually by screen java MyProgram I want them to start automatically on boot. I have read ...
0
votes
1answer
13 views

Installing Lubuntu Oracle 11gr2 for Practice

For the sake of education, my goal is to create a light Linux OS that can stay updated (for free) and run Oracle 11g and all its tools and also work with my wifi drivers. I tried using this guide to ...
0
votes
0answers
28 views

I have an Issue With Java! Scottrade! [duplicate]

My problem is that I downloaded a file with the the extension .jnlp . I have the necessary installed requirements Java Runtime Environment (JRE) 7 openjdk. When I try to open the necessary/required ...
0
votes
2answers
28 views

How to increase JAVA Heap Size?

I need to increase the default java heap size to get OpenNMS Linkd service running smoothly, and fortunately I have 4/5 of my total installed memory free at any given time even when their is maximum ...
0
votes
0answers
29 views

Oracle 12c Installation Error: “Exception … Could not initialize class sun.awt.X11.XToolkit”

I have been trying to install oracle 12 c on Ubuntu 14.10 but facing the below mentioned error.Could some one please check this and advise me how to fix this error? Checking Temp space: must be ...
0
votes
0answers
33 views

Eclipse Luna(4.4.1) can't find the JRE for jdk1.8u25

I recently installed jdk1.8u25. The java codes are working fine in the terminal but in eclipse it is not working. Can anyone give any solutions for this?
1
vote
2answers
35 views

Can't figure out how to run eclipse (missing JDK/JRE)

I'm very new to Linux and coding, I'm really interested in learning and really want to contribute to this process here at Ubuntu as soon as possible. I downloaded Eclipse Luna. When I try to run it ...
0
votes
0answers
26 views

Can't create Virtual Android Device in Ubuntu. Fatal error detected by JRE

I installed Eclipse and OpenJDK java 7. Ran the command android avd in terminal and then specified the specs for my virtual android device. Upon clicking 'OK' button. This is what it showed.! ...
0
votes
0answers
29 views

Android Studio doesn't render Ubuntu Mono Font well

It doesn't even recognise it as a Monospaced font. Then it only shows anti-aliasing when the font size is set to 20 or over. But for other fonts it does it at 16. The result is ugly looking fonts and ...
0
votes
1answer
29 views

ADT plugin Error says Location of the android sdk has not been set up in the preferences

I'm using Ubuntu 14.04. I've downloaded Eclipse Luna (4.4.1) and installed Android ADT plugin using this link https://dl-ssl.google.com/android/eclipse/ I'm getting error as 'Location of the ...
0
votes
1answer
53 views

Installing latest Java 8. Ubuntu 14.04. (Need Guide)

I need Java to log into my bank (passwords etc) http://java.com/en/download/linux_manual.jsp Recommended Version 8 Update 25 I am very new to Linux/Ubuntu. But i did follow a guide to use Terminal ...
1
vote
0answers
26 views

yEd shows no windows

I want to use the latest yEd graph editor on my machine with Ubuntu 14.04 running on it as the only OS. I downloaded yEd installer script for 64-bit Linux. Also: $ java -version java version ...
0
votes
0answers
8 views

Bootable pre configured live image - no installation on pc

I would like to build my own Ubuntu disc. I would like to make a disc like, "if you want to try Ubuntu before installation" What I need is, to make a pre configured disc with Java installed, and on ...
0
votes
0answers
23 views

How to Upgrade TomCat and Java Versions on Ubuntu Server 14?

I've Ubuntu Server 14 with TomCat 7.52 and Java 1.7.0_65. I'd like to upgrade TomCat to 7.56 and Java to 1.7.0_71. How can I do this? I want to update for example TomCat because going to manager ...
0
votes
1answer
88 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 ...
0
votes
0answers
27 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: ...
-2
votes
0answers
24 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 ...
0
votes
0answers
31 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 ...
0
votes
1answer
24 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 ...
0
votes
1answer
42 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 ...
0
votes
0answers
31 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 ...
0
votes
0answers
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 ...
-1
votes
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. ...
0
votes
0answers
147 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 ...
0
votes
1answer
16 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 ...
-2
votes
0answers
44 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 ...
0
votes
1answer
37 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 ...
0
votes
1answer
25 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 ...
0
votes
0answers
20 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 ...
0
votes
0answers
58 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: $ ...
-1
votes
0answers
30 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 ...
0
votes
1answer
77 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 ...
0
votes
0answers
41 views

How do I create a Debian source package for a JavaFx application for the Ubuntu Software Center?

I submitted a native .deb file to the Ubuntu Software Center, but I got the response below from reviewers: Your application is not in the correct archive format. Please provide us with the Debian ...
0
votes
0answers
21 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 ...
0
votes
0answers
22 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 ...
1
vote
1answer
48 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 ...
0
votes
0answers
75 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 ...
0
votes
3answers
45 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 ...
0
votes
1answer
45 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 ...
0
votes
0answers
39 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 ...
0
votes
0answers
28 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 ...
0
votes
0answers
20 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 ...
0
votes
1answer
18 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 ...
0
votes
0answers
30 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 ...
1
vote
0answers
37 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] ...
0
votes
0answers
74 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 ...