Questions relating to the installing and use of the Java Development Kit (jdk)

learn more… | top users | synonyms

2
votes
2answers
24k 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 ...
0
votes
1answer
24 views

I can't install openJDK 7 in ubuntu 12.10 (32-bit)

Using Ubuntu Software Center I tried to install OpenJDK 7 but got the following notification. **Package dependencies cannot be resolved** This error could be caused by required additional software ...
0
votes
1answer
30 views

installing jdk8 in ubuntu 12.04

I am completely new to Ubuntu and I want to install jdk8. I downloaded the jdk-8u25linux-x64.tar.gz file from their website, but I wanted to follow a lot youtube videos but somehow I cannot follow ...
0
votes
0answers
15 views

java installation not sucessful on ubuntu 14.04

I tried to install java from terminal but failed to install and got error like dpkg was interrupted, you must manually run 'sudo dpkg --configure -a' to correct the problem.
1
vote
1answer
21 views

SIGBUS error with JRE when using eclipse

I encountered a SIGBUS error when starting up eclipse. There was nothing wrong before this, I've just turned on the laptop and the error appears: $ eclipse # # A fatal error has been detected by the ...
-1
votes
0answers
13 views

can i install open jdk 7 32 bit with jdk 7 64 bit already installed on ubuntu 64 bit

I am using 64 bit ubuntu. Having installed jdk 7 64bit. can i install open jdk 7 32bit without uninstalling jdk 7 64 bit?
-1
votes
0answers
16 views

Help Please. Im new to ubuntu and need help getting bluej to work

i downloaded oracle-jdk and bluej, then realized i could just use the openjdk. i click on the bluej-314.deb file and it took me to software center to download. then I try to open and nothing happens. ...
0
votes
1answer
211 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 ...
2
votes
1answer
9k views

How to set the JDK for Android Studio?

I can't compile a default new project for Android 2.1 because(?) the JDK used by Android Studio is JDK 1.7 but it should be JDK 1.6. To change it I go to File -> Project Structure and try to find the ...
1
vote
1answer
678 views

Having problem with installing JDK 7 and 8

I wanted to install JDK 7 and 8 on my system and I followed bellow post: http://stackoverflow.com/questions/16263556/installing-java-7-on-ubuntu But now, when I enter the: sudo apt-get install ...
0
votes
2answers
126 views

NetBeans has broken interface with OpenJDK

Sorry for English. Usually (say, at 4/5 of times), when I start NetBeans, interface is partially broken. For example, menu items are appearing and at once disappearing after click; some parts of ...
0
votes
1answer
3k views

How to uninstall JDK

Today I installed Android Studio but when I opened it raised the error: 'tools.jar' seems to be not in Android Studio classpath. Please ensure JAVA_HOME points to JDK rather than JRE. I ...
1
vote
2answers
52 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
86 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?
11
votes
4answers
24k views

Specify JDK for tomcat7

I have installed tomcat7 (using apt-get install) and whenever I want to start tomcat7 it says : * no JDK found - please set JAVA_HOME I have set JAVA_HOME in my bash.bashrc and also in ~/.bashrc ...
12
votes
6answers
28k views

How do I make java default to a manually installed JRE/JDK?

I have Ubuntu 12.04 amd64 installed on my machine, on the previous versions of Ubuntu it was deadly easy, now there is this command update-java-alternatives with a really bad man page. I just have my ...
0
votes
1answer
22 views

all command in jdk/bin can not execute

for example i type jmap in terminal, it will show: The program 'jmap' can be found in the following packages: * openjdk-6-jdk * openjdk-7-jdk Try: apt-get install <selected package> ...
0
votes
0answers
46 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 ...
17
votes
4answers
31k views

'tools.jar' is not in IDEA classpath

I am a new user of Linux, it has been recommended to me by my friend. He told me to install software called IntelliJ Idea IDE. Well I have been following the tutorial. But now when I try to open ...
1
vote
1answer
476 views

Android Studo showing :“OpenJDK shows intermittent performance and UI issues.”

I have recently installed Android Studio on my Ubuntu 12.10 64bit machine, but every time that I opened it kept giving the following error "OpenJDK shows intermittent performance and UI issues. We ...
0
votes
0answers
120 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: $ ...
0
votes
1answer
808 views

Eclipse Kepler crashes on Ubuntu 14.04 when using WindowBuilder

I'm using Ubuntu 14.04 and with a lot of problems I have to face daily with this OS, there is another recent one. Problem: Whenever I try to use Eclipse's WindowBuilder to design SWING GUIs, after a ...
2
votes
1answer
60 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 ...
1
vote
1answer
231 views

Eclipse does not start on 14.04

I recently upgraded to Ubuntu 14.04 and have been trying to install and use Eclipse ever since. I tried using both open JDK as well as Oracle JDK installations(both Java 7 and Java8) and both Eclipse ...
1
vote
2answers
324 views

intellij idea not opening because of jdk/bin/java

I am relatively new to ubuntu. i am using idea intellij from jetbrains for developing applications with gwt and java. Recently i have installed ubuntu 14.04 and everything works fine but idea 13. I ...
4
votes
3answers
7k views

“Oracle JDK 7 Is NOT installed” error?

I'm trying to install JDK7 on ubuntu 12.4. In the first try, the power has gone and the laptop shutdown in the middle of downloading JDK7 using terminal as I was using the next terminal commands ...
0
votes
0answers
36 views

Specifying path to java interpreter while installing Java Wireless Toolkit

I have already installed JDK. I could run java programs through command line as well as through Netbeans IDE. Now I want to install java wireless toolkit. I have downloaded the "*.bin" file from ...
2
votes
1answer
540 views

Download failed : Oracle JDK 7 is NOT installed

When i try to install something it gives me this error: HTTP request sent, awaiting response... 403 Forbidden 2014-04-23 09:32:53 ERROR 403: Forbidden. download failed Oracle JDK 7 is ...
1
vote
0answers
135 views

use jdk1.8.0_20 which comes with Netbeans also for Aptana

I just installed Netbeans 8 with jdk1.8.0_20. Which is working fine but a little bit slow. So I figured why not try Aptana Studio but Aptana website states that openjdk is not supported. Can I use ...
0
votes
1answer
221 views

how to install java 1.5 jdk in ubuntu

I am getting this error when trying to install java 1.5 jdk sudo apt-get install sun-java5-jdk Reading package lists... Done Building dependency tree Reading state information... Done Package ...
1
vote
1answer
125 views

Installing oracle java versions

I went to the website to download (Java Platform (JDK) 8u20 ), http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html to download ORACLE java for my machine. I was ...
-1
votes
2answers
186 views

Running .jar File using JDK on Ubuntu 14.04 [closed]

I install JDK on my Ubuntu 14.04 so I can use Netbeans and Android studio. I download a .jar file in the internet and I want to run it on my PC. My problem is, I cannot find java to run this file. I ...
1
vote
1answer
635 views

JDK 8 Installation for Ubuntu 14.04 (Android Studio & NetBeans)

I downloaded jdk-8u11-nb-8-linux-i586.sh and installed it in my home folder. Then I install NetBeans, it is successful I think because I can compile my java code using netbeans. Now when I install ...
0
votes
1answer
152 views

Ubuntu 14.04 freezes when running project in netbeans 8 with jdk 7

This question seems to be a duplicate but it's not! I run ubuntu from a live pendrive only and wanted to test a netbeans project for linux. I have installed oracle's jdk 7u67, netbeans 8. When I tried ...
0
votes
0answers
57 views

Unable to share desktop while using Webex

While using WebEx, I am not able to share desktop. An error message shows that "Java is not enabled", but I've installed jdk7.4. I am using Ubuntu 13.10.
0
votes
2answers
3k 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 ...
283
votes
23answers
443k views

How can I install Sun/Oracle's proprietary Java JDK 6/7/8 or JRE?

I want to install Oracle's JRE and to update to the latest version with the Software Updater when they released. Is there a Ubuntu package that is provided by Canonical or Oracle? Before release Java ...
0
votes
0answers
57 views

Update-alternatives creating symlink to directory instead of file

I ran update-alternatives --install /usr/bin/java java /opt/jdk/jdk1.8.0_11/bin/java 100 It is creating symlink named java to /opt/jdk/jdk1.8.0_11/bin/ instead of /opt/jdk/jdk1.8.0_11/bin/java inside ...
2
votes
0answers
243 views

Unable to start topcoder arena in Ubuntu 14.04

When I want to clear cache using javaws - viewer these error comes. I am trying to launch my topcoder arena. Picked up JAVA_TOOL_OPTIONS: -javaagent:/usr/share/java/jayatanaag.jar Exception in ...
0
votes
1answer
1k views

Eclipse can't find Java after upgrade to 14.04

After upgrade to Ubuntu 14.04 Eclipse 3.8 can't find any installed Java VM. I have the Sun JDK 1.7 and the openJDK7 installed. I have tried modifying the eclipse.ini to point it to one of the ...
0
votes
0answers
15 views

JDK 8 installation from .tar.gz file [duplicate]

I have downloaded jdk-8u11-linux-x64.tar.gz from the oracle website, and I have done gunzip and tar -xf which extracted all the files into a jdk directory(/usr/local/src/jdk1.8.0_11). Now is that it ...
0
votes
2answers
1k views

Switch to Oracle Java JDK in 14.04?

Ubuntu 14.04 comes with OpenJDK after updating from 13.10. $ java -version java version "1.7.0_55" OpenJDK Runtime Environment (IcedTea 2.4.7) (7u55-2.4.7-1ubuntu1) OpenJDK 64-Bit Server VM ...
2
votes
1answer
199 views

Problem downloading Oracle JDK 7 [duplicate]

I'm using Ubuntu 12.04 LTS. I'm trying to install Oracle JDK 7. When I tried to directly download the jdk-7u51-linux-x64.tar.gz from the official website, the download started and after downloading ...
0
votes
2answers
319 views

Changing the Java Runtime in NetBeans 8 on Ubuntu 14.04

(Not sure if this is the right site for this question - if not please migrate.) I am using Netbeans 8 for C++ on Ubuntu 14.04. Ubuntu comes with the Open JDK Runtime, which is what Netbeans is ...
0
votes
0answers
1k views

How do I install Eclipse Luna and JDK8 to work in Ubuntu Studio using XFCE?

I tried following guides online to install Eclipse, but I'm not sure if it was supposed to work for my distro. I'm also unsure if openJDK 8 is the same thing as JDK8 for linux and whether or not it's ...
1
vote
1answer
58 views

How do I change my java version?

I want to install Oracle JDK on my Ubuntu 14.04. I tried using webupd8's method. The installer worked fine but the when I type java -version I get: java version "1.7.0_55" OpenJDK Runtime Environment ...
1
vote
2answers
49 views

Install Java 6 for a single project while leaving the default for the rest of the system at Java 7

In order to install a development environment for an older version of Android, I need to have Java 6 installed. I already, however, have Oracle Java 7 installed on my system and would like to keep it ...
1
vote
0answers
43 views

Eclipse dosn't see JDK

I had installed Eclipse and it was working well few days ago. Now I can't create Java project, there is no such option and in the Eclipse Preferences there is no mention about the word Java. I was ...
2
votes
1answer
589 views

IcedTea plugin for openjdk 8

I updated from openjdk 7 to openjdk 8. Meanwhile I uninstalled jdk 7(which uninstalled icedtea plugin too). I tried to reinstall icedtea with sudo apt-get install icedtea-7-plugin But it ...
1
vote
1answer
148 views

Can't run InstallJava executable file

I can't seem to run a Java executable file, even though I've already installed the latest jdk. See the below screenshot. Am I using the right command, via: ~$ open InstallJava or is ~$ ./InstallJava ...