Is a free and open source implementation of the Java programming language. It may be installed from the software centre.

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Minecraft Locks Up. I tried everything!

I just can't get Minecraft to work no matter what I try. I tried to delete the game files and redownload, nothing changed. I tried to switch to different versions of oracle java and openjdk, nothing. ...
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0answers
12 views

Juniper network connect on Ubuntu 14.04 cannot find 32 bit Java

I have Ubuntu x64 and trying to install Juniper network connect. Installed 64bit jre/jdk, icedtea and 32bit jre sudo apt-get install openjdk-7-jre icedtea-7-plugin sudo apt-get install ...
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2answers
2k views

Installing Spark on ubuntu

I am installing Spark IM Client for Ubuntu. The tar.gz doesn't appear to be functional at ALL, (considering the /bin directory is completely empty and lacks important things like unpack200) but I ...
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1answer
29 views

How to install Eclipse for Oracle Java on Ubuntu 12.04

I have Oracle Java 7 on my system and want to install Eclipse and make it use Java 7 instead of openjdk. I installed Eclipse earlier using synaptic but after doing check updates it didn't work ...
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0answers
20 views

Java apps consume 200% my CPU after cloning image in another computer

Yesterday I cloned an image of Linux from a Core 2 Duo to a Core i5 laptop. Everything works as expected except for JVM. I've installed in my machine the OpenJDK, Java 8 (jdk jre) and Java 7 (jdk ...
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3answers
5k views

Netbeans install error: The specified jdk folder does not contain jdk

During installation of Netbeans 7.3 I got this message the specified jdk folder does not contain jdk I have openjdk 7 installed on my system using apt-get. I tried to specify the path to ...
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1answer
43 views

How to remove openjdk 6 from ubuntu 13.04? [closed]

When I do sudo apt-cache search openjdk I got: default-jdk - Standard Java or Java compatible Development Kit default-jdk-doc - Standard Java or Java compatible Development Kit (documentation) ...
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0answers
10 views

java vulnerabilities [duplicate]

I have an very simple question, when a vulnerability is discovered in java (which happens regularly), is it also affects openjdk ? This is a question I ask myself without managing to find the answer ...
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0answers
16 views

Installing Android Studio in Ubuntu 12.04 [duplicate]

I am trying to install Android Studio in Ubuntu 12.04 following the directions from here: http://developer.android.com/sdk/installing/studio.html#Updating. When I run studio.sh from ...
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2answers
9k views

How to setup Java-Home and Path in Ubuntu 12.04

we are new to Ubuntu.Recently we changed my server OS to ubuntu 12.04 from windows 7 . every one have their own login details. one of my college installed Open-Jdk7. I asked him, where you installed ...
2
votes
1answer
470 views

OpenJDK - Oracle is better? [closed]

From http://www.wikihow.com/Install-Oracle-Java-on-Ubuntu-Linux Type/Copy/Paste: java -version . If you're having OpenJDK Runtime Environment (IcedTea6 1.10pre) (7b15~pre1-0lucid1) OpenJDK 64-Bit ...
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4answers
21k views

How to install openjdk-7-jdk on Ubuntu 12.04 without dragging in unrelated GUI and sound packages?

Ubuntu 12.04.2 LTS What's going on here? # apt-get install openjdk-7-jdk Reading package lists... Done Building dependency tree Reading state information... Done The following extra packages will be ...
33
votes
9answers
96k views

How to completely uninstall Java?

How can I completely remove all traces of Java on my system? I already know how to install it in case I need it again.
68
votes
9answers
87k views

How do I install Java?

How do I install Java and also the plugin in my browser so websites with Java work?
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votes
1answer
72 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 ...
0
votes
2answers
42 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 ...
3
votes
2answers
190 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 ...
1
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3answers
109 views

how to install openjdk

When I try sudo apt-get install openjdk-7-jdk I got a message telling me that the package could not be found in database. I guess I'm missing repositories. here's the content of sources.list ...
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0answers
83 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 ...
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votes
1answer
130 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 ...
22
votes
8answers
26k views

How to correctly install and troubleshoot Minecraft (Client)

How to correctly install Minecraft, including setting any needed packages or apps to install it and to troubleshoot the most common problems that Ubuntu users face when trying to user Minecraft. I am ...
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0answers
23 views

Installing oracle jdk without remove openjdk

I would install Oracle jdk without remove openjdk, could that bring any problem to my Ubuntu 12.04 configuration? thanks
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2answers
5k views

Netbeans IDE did work after installation, but doesn't start after restart.

i installed Netbeans on Ubuntu 11.10 following these instructions: http://pasindudps.blogspot.com/2011/10/installing-netbeans-ide-in-ubuntu-1110.html. It worked perfectly fine (creating projects, ...
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0answers
178 views

Ubuntu 13.10 is freezing while using openjdk-7 and Oracle Java 1.7.0_51

I have had some problems with Ubuntu 13.10 while using OpenJDK 7 to play Minexraft 1.7.4. (Please don't tell me that I need to use Oracle Java, I already know I should be doing that.) My computer is ...
0
votes
1answer
40 views

Switching to Java 7

I have both java-6-openjdk and java-7-openjdk installed on my machine. When I check the version, I get java version "1.6.0_27". I want to run java 7 but don't really know what all I have to change to ...
0
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1answer
154 views

Cannot run maven2 on Linux Ubuntu 12.04

I am trying to compile a program using maven in my Linux 12.04. In order to do, I use the mvn clean install command. However I get a build error: [ERROR] Unable to locate the Javac Compiler in: ...
0
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1answer
168 views

Ubuntu 13.10: Upgrade interrupted because of openjdk-7

I was running an apt-get upgrade (not version upgrade, just normal), when I got this message: You might want to run 'apt-get -f install' to correct these. The following packages have unmet ...
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votes
1answer
303 views

error make: *** No targets specified and no makefile found. Stop after make openjdk-7-7u51-2.4.4.orig

7-7u51-2.4.4.orig and type make in terminal show error in ubuntu 12.04 lts make: * No targets specified and no makefile found. Stop. pls help me tanx
7
votes
2answers
11k views

What's the difference between OpenJDK and Sun Java for the end user?

For users running Java application or applets in the browser, what difference does it make running either Sun Java or OpenJDK? EDIT Oracle will be retiring the DLJ, and basing the proprietary ...
10
votes
5answers
9k views

How to uninstall OpenJDK?

I don't want OpenJDK installed on my Ubuntu 13.04 system, but trying to uninstall the openjdk-7-jre yields the following message: $ sudo apt-get purge openjdk-7-jre Reading package lists... Done ...
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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
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 ...
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votes
1answer
917 views

Unable to install openjdk

I have two questions: I want to install JDK so I wrote to terminal: sudo apt-get install openjdk-7-jdk but this message shown ,while my computer was connected internet: Reading package lists... ...
5
votes
1answer
1k views

How to prevent openjdk-6-jre-headless from clobbering Oracle JDK installation?

My automated build server runs a job that depends on Apache Ant. The script invokes apt-get install ant. Ant depends on openjdk-6-jre-headless which runs update-alternatives making itself the default ...
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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 ...
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0answers
100 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 * ...
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vote
1answer
2k views

Why do I get Exception in thread “main” java.lang.UnsupportedClassVersionError? [duplicate]

I am trying to run a program on eclipse. I am getting the following error: Exception in thread "main" java.lang.UnsupportedClassVersionError: Perlinit : Unsupported major.minor version 51.0 at ...
0
votes
2answers
57 views

Is there a way to keep Oracle's JRE/JDK as the default JRE/JDK?

Okay here is my issue. Every time I install a .deb installer of a program that requires java. OpenJDK hijacks my system and sets it as default Java. I don't want to use OpenJDK, if I did I wouldn't be ...
0
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0answers
159 views

Can't Install Open JDK? [duplicate]

I'm trying to Install Minecraft On Ubuntu 12.04 lts. When I try to install Open JDK it gives me this message: The following packages have unmet dependencies: openjdk-6-jre: Depends: ...
0
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0answers
748 views

Setup JDK for android studio

I was setting up android studio and got this So I followed the answer here and used sudo update-alternatives --set java /usr/local/java/jdk1.7.0_17/jre/bin/java sudo update-alternatives --set ...
0
votes
1answer
499 views

How do I download, install, and run Minecraft? As well as OpenJDK7?

First off, I have tried downloading Minecraft. I logged in, and the launcher did work. But, when I tried to "play Demo", this is what showed up: Developer Console before clicking "Play Demo" ...
0
votes
1answer
264 views

OpenJDK Java 7 missing from “Open With” under file Properties

Ok. I have read through probably two-dozen posts and articles, and still can't seem to find an answer. I have installed OpenJDK-7 and am trying to set it as the default to open .jar files ...
0
votes
1answer
18 views

ALEKS plug-in on 12.04

I'm running 12.04 and have successfully installed the latest version of JDK. I've followed the instructions on this page to install the plug-in for ALEKS, and that worked. But when I log in to ALEKS ...
0
votes
1answer
4k views

How to open jar file using open JDK?

I installed "open jdk 7" on ubuntu 13.04, but not recognized in "other application" list to set as default. I need to open a ".jar" file with "open jdk7". Please help.
0
votes
1answer
64 views

Java -jar using Oracle lib

I have installed java-7-openjdk and it works well, but I need to use JavaFX in a project so I download "Java SE" (all packages) form Oracle and I store them inside/usr/lib/jvm/jdk1.7.0_45. Now I want ...
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votes
2answers
1k views

What is the difference between default-jdk, ecj, gcj and openjdk?

This morning, I tried to install something and came across a statement like this: The program 'javac' can be found in the following packages: * default-jdk * ecj * gcj-4.6-jdk * gcj-4.7-jdk * ...
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0answers
37 views

openjdk-7-jre's recommended packages

When installing this package, apt-get wants to pull in lots of old Gnome packages (at least libgnome2-0, libgnome2-bin, libgnome2-common, libgnomevfs2-0, libgnomevfs2-common, libidl-common, libidl0 ...
13
votes
5answers
10k views

Will Sun's Java be available from Canonical's partner repository?

I just discovered that Oracle's (Sun's) Java6 has vanished from the Canonical's partner repo. Before java was taken from all repositories I had purchased Minecraft for play in Ubuntu. After recent ...
0
votes
0answers
57 views

Problem with Java-VTK while running a Java-based program

While trying to open some files in a java/VTK visualization program (called lbview), i faced with this error: dist: [jar] Building jar: /home/alireza/lbview/target/lbview.jar run: [java] # ...
1
vote
1answer
3k views

netbeans broken after openjdk update

I had some strange issues on my notebook where NetBeans hangs some times and also some dialog items are missing. I tried various things (ugrading to jre-7, switching to oracle jre, other versions of ...