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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Java 7 installation error

I'm getting this output when i try to install oracle-java7 from webupd8 ppa Download done. Removing outdated cached downloads... sha256sum mismatch jdk-7u51-linux-x64.tar.gz Oracle JDK 7 is NOT ...
0
votes
1answer
45 views

Open JDK doesn't run my jar files

I decided to start java programming on Linux instead of Windows, but I can only open my projects in the NetBeans IDE. When I make the distribution into a .jar file, I can't open them. I already gave ...
0
votes
1answer
83 views

Tomcat7 deployment error

I have a web application that I can build and test within my Eclipse environment. It runs perfectly fine when I run the application within Eclipse environment. However when I deployed it to my Tomcat7 ...
2
votes
1answer
147 views

How can I uninstall oracle java 8 and install oracle java 7 instead with webupd8 installer?

I installed oracle java 8 by typing in terminal: sudo add-apt-repository ppa:webupd8team/java sudo apt-get update <br/> sudo apt-get install oracle-java8-installer but now I want to ...
0
votes
1answer
22 views

My netbeans is not working after I deleted the jvm folder

My netbeans is not starting since I deleted the /usr/lib/jvm folder. But I have installed java jdk 1.7.0_51.deb file and the file dir is /usr/java. When I tried to start the netbeans using terminal ...
0
votes
2answers
83 views

Installed libgdx and OpenGl in ubuntu

first let me say thanks for all the help in my other questions; the answers have really help a lot. Now I'm in the process in developing game for tablet, pc and android platform. I have decided to ...
1
vote
1answer
30 views

Installing tomcat5.5 from source

I want to install PHP/Java Bridge. I installed Tomcat7 for it, but it failed: sudo dpkg -i /home/asif/jbridge/php-java-bridge-j2ee_5.4.4.2-3_all.deb Selecting previously unselected package ...
0
votes
1answer
36 views

3D game engines in ubuntu

I know this must be one of the many question around the same topic. But, i want clear mind and new eyes in this. I am beginning to grasp java for game development for pc and tablet; i cant use ...
0
votes
1answer
72 views

How to work with .bin files

I want to install JDK 1.6 on my Lubuntu OS. But it is some specific .bin file instead of tar.gs for linux - Java SE Development Kit 6u45. UPDATE: After following suggestion, I catch next: error: ...
0
votes
0answers
53 views

How to install Lucene 4.0.7 in ubuntu 12.04

I am using ubuntu 12.4 and I have an assignment to explore Lucene 4.0.7. But I could not install it. I did not get any type of help from search engines or other forums. So please any body help me.Here ...
0
votes
0answers
18 views

Spark client customization

I need a detailed guide for building a customized Spark client installation package for Ubuntu 12.04 32 and 64 bit. Source code : http://www.igniterealtime.org/downloads/source.jsp Objective: ...
0
votes
2answers
41 views

Installing OpenJDK 7 didnt install javac

I am very new to using the linux operating system and I'm currently using Ubuntu 13.10 coming off using windows for my whole life. I have been trying to get java development kit installed so I could ...
0
votes
1answer
36 views

How to update to java 7 without interfering with java 6 dependent apps?

I'm running jetty 7.6 on ubuntu. It's serving live traffic. That particular version of jetty needs java 6. Now I want to install java 7 on that machine. Will that mess up my jetty instance that's ...
2
votes
0answers
62 views

Stuck on render ring in fullscreen when having used `xrendr -o right`

At work I am supposed to get a Java application running in fullscreen on a big-screen tv. This TV is connected to a Intel Nuc device, which is running Lubuntu 13.10. This TV is hanging on the wall ...
3
votes
2answers
184 views

Replace openjdk with oracle-jdk on Ubuntu

I have an ubuntu system and I want to replace my openjdk with oracle-jdk. However if I remove my open-jdk and then install oracle-jdk, when I try to install some packages they want to install ...
2
votes
1answer
66 views

How to install a Java program from source

How I can install TubeMaster++ from SourceForge ?
0
votes
1answer
59 views

Tomcat Not Shuting Down on server

When I shutdown tomcat on server it show following error Using CATALINA_BASE: /usr/local/tomcat7/apache-tomcat-7.0.52 Using CATALINA_HOME: /usr/local/tomcat7/apache-tomcat-7.0.52 Using ...
0
votes
0answers
26 views

Minecraft Framerate Drop after 5 minutes

I installed 13.10 last night on a Dell Precision M6500 and I was amazed that I could get ~50 FPS, but then after about 5 minutes, it took a sudden drop to about 2 FPS. This happens every time and ...
0
votes
0answers
7 views

Easiest way to install JRE on ubuntu? [duplicate]

So I am looking for a simple way to install JRE on Ubuntu. I am a linux noob so I need some help in this. is there a command I can use in the console?
0
votes
0answers
82 views

I just try to install Netbeans but there is more problem with JDK

Hi, im new at ubuntu and i want to use netbeans. I downloaded netbeans from its web site then I wrote this commands to the line hakki@hakki-K55VM:~/Downloads$ chmod +x netbeans-7.4-linux.sh ...
0
votes
2answers
40 views

unable to set java path

Hey i am trying to save my oracle jdk path by using following command sudo gedit /etc/environment and the i am saving path as JAVA_HOME=/usr/lib/jvm/jdk1.7.0_51 ...
0
votes
0answers
16 views

Trying to run a LAN web development server and a Mine Craft server at the same time

I want to run a web server on an old vista box. Removed the vita and installed linux. My 16 year old daughter would like a web development computer and my ten year old would like to have a minecraft ...
1
vote
1answer
50 views

Problem Opening Programs and Where is what I intall?

I download Java to run Minecraft and also other programs that need installation. When I open it, instead of opening it with an installation or something it opens the folders inside of the program with ...
1
vote
1answer
47 views

Can I build a Java-based game and move it to Ubuntu for the future tablets and phones?

I am on my way to learn Java game programming to make my own Android apps. My question is if I can built a Java-based game and move it to Ubuntu for the future tablets and phones.
0
votes
1answer
35 views

RubyMine crash on strart

I'm trying to launch RubyMine on Ubuntu 13.10. But I get an error: A fatal error has been detected by the Java Runtime Environment: SIGSEGV (0xb) at pc=0x00007f3c371c010e, pid=3624, ...
3
votes
1answer
69 views

CUPS Print Delays

I am a developer of an open source Java printing plugin for the web browser and we have a client that reports 250ms delay in printing on Ubuntu, but no other OS. He has tested printing on Windows and ...
0
votes
2answers
180 views

How can I Enable Java on google chrome? [duplicate]

Java is not working on Google Chrome in Ubuntu 12.04. How can I enable it?
0
votes
0answers
95 views

Unable to install java sdk, via java_ee_sdk-7-jdk7-linux-x64.sh

I read through many of the Q/A regarding installing Java on ubuntu, i am not satisfied hence this post. I did the following, downloaded java ee SDK 7, from oracle.com . sudo chmod a+x ...
1
vote
1answer
87 views

Programming Java on Ubuntu 13.10 [duplicate]

I have ubuntu 13.10 and I am trying to use a disk that contains a book, How to program Java, 7th edition. It is the Linux version CD and I can't figure out what program to use so I can look at the ...
0
votes
1answer
59 views

How to remove an unsuccessful installation of Java 6

I unsuccessfully tried installing Java 6 by copy-pasting the following from http://www.webupd8.org/2012/11/oracle-sun-java-6-installer-available.html in the terminal window: sudo add-apt-repository ...
0
votes
0answers
56 views

How do Install Sun Java Wireless Toolkit on Ubuntu 13:10?

Kindly bear with me, as I am new to Ubuntu. I finally successfully installed Java SE (on my Ubuntu 13.10. 64 bit machine) following the instructions from How do I get ORACLE JAVA SE 7 to work? This ...
0
votes
0answers
34 views

Java -jar arguments being ignored

I'm using Ubuntu 13.10 and Oracle Java 1.6.0_45 (need the oracle version for some development work I'm doing). I can recreate this problem with nearly any jar file but the specific one is with a ...
0
votes
1answer
53 views

install command for JAVA [duplicate]

I am trying to install JAVA on my Ubuntu 12.04, and I followed the official instructions: http://java.com/en/download/help/linux_x64_install.xml#install I am stuck at #3: Unpack the tarball and ...
0
votes
0answers
10 views

Trigger a command in ubuntu/linux whenever a new file is created in a directory

How could I trigger a command in ubuntu/linux, whenever a new file is created in a directory by a Java webapp ? Usage/Context: I need to move a newly created file (created by java app), in a ...
0
votes
0answers
48 views

How can I reliably install BIRT 4.3.1 on 64-bit 13.10?

I have found conflicting and out-of-date information about installing BIRT on Ubuntu. It also appears that it is difficult to get it to run reliably (this may be a result of the version of Eclipse it ...
0
votes
0answers
28 views

How to make “secure” connection from JConsole to a remote server app in ubuntu?

I can connect to my remote app in JConsole but I believe that is not a secure communication. Since I am passing on the server access credentials, I want to make this a secure communication. How could ...
2
votes
1answer
192 views

How do I get ORACLE JAVA SE 7 to work?

I am a newbie to Ubuntu, so kindly be considerate. I recently manually downloaded & installed (Java SE 7ux) JavaSE 1.7.0_51. Linux x64 (for 64-bit system) "tar.gz" package. My Ubuntu version is ...
1
vote
1answer
53 views

Can't Execute .desktop File

I'm new to ubuntu and linux... I'm trying to make a minecraft launcher .desktop file, and when I execute it, it says me: "There was an error launching the application" My code is: [Desktop Entry] ...
0
votes
1answer
21 views

What does Jetty do and do I need to activate it?

What does Jetty really do? I've read a lot of info about Jetty googling but everywhere it's just a few info about it. Because once or twice I got pop up message saying: Not starting jetty - edit ...
0
votes
0answers
43 views

Unable to start Eclipse Kepler without root

Please find my information. Operation System : Ubuntu 13.10 Java SDK : java version "1.8.0" Java(TM) SE Runtime Environment (build 1.8.0-b129) Java HotSpot(TM) 64-Bit Server VM (build 25.0-b69, mixed ...
0
votes
1answer
56 views

Where can I find OpenJDK JVM crash log

One of my java application crashed. I want to find the JVM log to see what happened. Where can I find JVM logs?
1
vote
1answer
36 views

Why doesn't ps -al display my java programs?

I don't understand why ps -al or sudo ps -al won't display for instance my java processes. If I do ps -al then I don't see for example my java jobs but I see them when I do the (strange and ...
0
votes
1answer
80 views

Setting JAVA_HOME

How do I set JAVA_HOME=/usr/lib/jvm ...E ? The instructions say to use INSTALL4J JAVA_HOME=/usr/lib/jvm/java-6-sun but I get an error that says: INSTALL4J: command not found I have downloaded ...
0
votes
2answers
363 views

How do I uninstall Extreme Download Manager?

How do I uninstall Extreme Download Manager on Ubuntu 12.04? That means also getting rid of the icon that appears in the Application area of Dash as well as all the Java related stuff that was ...
0
votes
1answer
126 views

OpenJDK 7 Installation trouble on 10.04 [closed]

I added the following common personal package archive as follows: sudo add-apt-repository ppa:openjdk/ppa sudo apt-get update The update goes well, but when I try to install the openjdk-7-jdk it ...
1
vote
1answer
41 views

What are the standard places that Java Virtual Machine is configured on Ubuntu 12.04?

I'm running Pangolin (12.04 LTS) and want to sort out some Java stuff where my JVM is pointing at a different place to my Compiler. To demonstrate, my JVM is as follows: ...
0
votes
0answers
25 views

jdb not starting up

I am having a wierd problem. I manually installed the newest JDK from Oracle just about an hour ago. Now when I try running jdb through the command jdb DocumentListing1.java the output reads: The ...
0
votes
1answer
101 views

Really?! Installing java on web browsers is pain! [duplicate]

I have to install java in my browser (which I never needed in the last two years, since I'm running this installation of Ubuntu). I'm trying Firefox and Chromium... anything that works will be OK. ...
0
votes
3answers
50 views

Java for Ubuntu12.04 LTS

I want to install Java from Java.com - In the site I see multiple options for Linux - which one to choose for Ubuntu 12.04 LTS? Why this is not available in Ubuntu SOftware centre?
0
votes
0answers
81 views

Minecraft crashes constantly [SIGSEGV] i965_dri.so libjvm.so

My problem is that Minecraft is constantly crashing, giving 1 of 2 different errors in the log. I've tried using the edgers ppa. I've tried Minecraft with no mods or with optifine. I've searched for ...