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

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3answers
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Oracle jdk in Ubuntu

I removed openjdk-7 completely using apt-get purge and installed oracle jdk(8u45).I have the oracle jdk in path and it is working well .The Problem is that, if I try to install any software(from ...
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0answers
27 views

chromium browser becomes unresponsive when Minecraft is in-game

I can't use Chromium browser (also affects Google Chrome) while playing Minecraft in another window. The browser becomes extremely unresponsive. If I exit the Minecraft game and just run the title ...
1
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1answer
600 views

Error while installing DBeaver On Ubuntu 14.04

I am trying to install Dbeaver 3.5.6 on Ubuntu 14.04, but it shows some Java run-time missing error even though I've Java7 installed on my system. Here's how I tried to install user@Demo:~/...
0
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1answer
118 views

openjdk 7 java freeze launch

NOTE: Found a workaround, I just want to know where the problem is. Hello everyone, I am attempting to run a java *.jar file that runs on my debian setup but cannot get to run on a fresh install of ...
0
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1answer
80 views

How to set Java 7 as default?

For android 4.4.4 development, I needed Java 6. But eventually I moved over to Android 5.0 development which needed Java 7. When I tried using sudo apt-get install openjdk-7-jre and sudo apt-get ...
4
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0answers
257 views

OpenJDK, IcedTea security settings

I am a beginner Linux user. From my knowledge the system uses OpenJDK and IcedTea only when I connect to a SAP IDES server through SAP GUI JAVA adding a string in it to connect to that server. I use ...
1
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0answers
179 views

CLion ugly fonts

I have a problem with Clion fonts. They look really ugly. I tried different methods to fix that: Urshulyak solution JetBrains forum solution AskUbuntu solution I even installed infinality and ...
0
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0answers
71 views

Ubuntu Gnome 14.04.3 Webex won't share screen

I've been working all day to get Webex to run with Firefox on Ubuntu 14. It almost works. I can see screens shared by others, but cannot share my screen. I have seen that there are not found .so's ...
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0answers
36 views

Chrome fonts broken after Installing java on Ubuntu 14.04

I've been trying to solve this problem for 2 days and failed. I was trying to solve another problem on Ubuntu 14.04 with anti aliasing not working in WebStrom and ended up breaking everything. Chrome ...
1
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1answer
232 views

How to downgrade Java version 1.6.0_36 to 1.6

I am trying to compile the Android source code version 4.2 in my Ubuntu 14.04. The compilation step is unsuccessful throwing following in terminal. Your version is: java version "1.6.0_36". The ...
0
votes
1answer
96 views

Can't install Netbeans/JDK 7 on Ubuntu 14.10

I am having trouble trying to install Netbeans/JDK 7 on Ubuntu. When i try to install Netbeans, it asks for JDK 7, but i was unable to install it via apt-get. I've tried this command already: sudo ...
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0answers
37 views

unable to install jdk 7 [duplicate]

I am unable to update package index in Ubuntu. I tried the command sudo apt-get update I am getting following output snippet:
3
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2answers
797 views

Is the openjdk-r ppa trustworty?

I've seen a ton of blogs saying Java 8 is now available to Ubuntu 12.04 & 14.04 through the ppa openjdk-r. My question is how trustworthy is this ppa? Is it run by people from openjdk or ubuntu or ...
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0answers
25 views

How to remove java 7 & eclipse version appropraite with java 1.6?

I'm new to java, and I tried to uninstall java 7 using this command: sudo apt-get purge oracle-java7-installer Then tested it by: sudo dpkg --list |grep -i jdk And got: bash /usr/bin/java no ...
3
votes
1answer
11k views

NetBeans not working after update

I have been usigng NetBeans 2 years now and have encountered an issue. After a normal apt-get upgrade NetBeans stopped working altogether. After this I reinstall the JRE and JDK to no avail. However, ...
0
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0answers
164 views

Can't use icedtea plugin without removing proprietary plugin (firefox)

What I'm trying to do: Switch from using the proprietary java plugin (java 1.8.51) to using the icedtea plugin. Apparently there still doesn't exist an icedtea-8-plugin for ubuntu 15.10 in the ...
0
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1answer
131 views

OpenJDK Java 8 - When will it be made available in Trusty 14.04.x

It appears that OpenJDK Java 8 has been out for a while now. However, it is not available in the "Ubuntu 14.04.x" (and derivatives) via the repositories. When, if ever, while Java 8 become available.
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1answer
737 views

Running AndroidStudio on Ubuntu 15.10 crash

Right now I am facing the issue that I cannot develop in AndroidStudio using Ubuntu 15.10, because both openjdk-7 and openjdk-8 cause problems. openjdk-7 issue Running AndroidStudio using env ...
0
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1answer
463 views

Install openjdk1.7 u79 package that was downloaded by terminal

Hi guys I download package jdk1.7.0_79and I wanted install the package using the terminal. I got this user guide and I did it step by step. sudo mkdir -p / usr/local/ java cd/home/ your_user_name /...
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0answers
79 views

Permission problem with Java Applets

I have a problem with my Java installation. I can run every Java program, but if I need an Applet, the Browser displays a blank section! :/ If I start Firefox with the terminal, I see following ...
0
votes
1answer
2k views

libnpjp2.so - java plugin missing in openjdk-8-jdk:i386

I am using ubuntu 14.10 and i installed jdk8 via apt-get install openjdk-8-jdk:i386. Using update-alternatives, I have made java 8 as the default one. Now, when i checked java on firefox using this ...
2
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1answer
489 views

Netbeans cannot find java

So, I uninstalled Openjdk 7 and installed Oracle Java from webupd8. But after the installation Netbeans won't start. I have tried all the methods posted online about editing the netbeans.conf file and ...
0
votes
1answer
319 views

Errors were encountered while processing: libxau-dev:amd64

I have removed Java version 1.8 and now want to install version 1.7. All the time I am getting error(1) with libxau-dev file so I am trying to install it and getting message below: my@server:~$ sudo ...
0
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0answers
13 views

JVM 32-bit compatibility [duplicate]

I need to be able to run JVM in 64-bit and 32-bit mode. I'm using openjdk-8-jre but when I try java -d32 I get the message: Error: This Java instance does not support a 32-bit JVM. Please install the ...
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0answers
484 views

OpenJDK 1.7 does not install on Ubuntu 14.04 LTS

The OpenJDK 1.7 JDK cannot be installed on Ubuntu 14.04 LTS. The machine is running on AWS sudo apt-get update sudo apt-get install openjdk-7-jdk results in: the following packages have unmet ...
0
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1answer
205 views

Java 7 reporting not installed?

Okay, so I am trying to build an Android ROM, but the following error returns; ************************************************************ You are attempting to build with the incorrect version of ...
1
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0answers
64 views

What is javac internal?

I just installed a new version of Java 8, when I asked for the version of the Java I got following output ~/$ javac -version Picked up JAVA_TOOL_OPTIONS: -javaagent:/usr/share/java/jayatanaag.jar ...
0
votes
4answers
3k views

unable to install jdk and jre in ubuntu 14.04

I want to install jdk and jre in my ubuntu 14.04 and I got these following errors: anil@anil:~$ sudo apt-get install default-jre [sudo] password for anil: Reading package lists... Done Building ...
0
votes
1answer
248 views

Kubuntu 14.04 - Can Oracle JDK 8 (for later use with NetBeans 8) be installed along with currently installed OpenJDK6 & 7?

I'm not facing an actual issue yet, rather trying to avoid any... Currently, these packages are installed on my PC (automatically installed during a fresh install of Kubuntu 14.04): $ apt list ...
1
vote
2answers
240 views

How to tell if a certain package exists in the apt repos? [duplicate]

I am specifically interested in determining whether a 32-bit version of OpenJDK 8 exists in the apt/Ubuntu repos. According to this answer, you can install the 32-bit version of the Open JDK 7 ...
1
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1answer
2k views

Firefox can't get the latest java version in ubuntu 15.04 in about:configs with iceatea-8-plugin, but oracle java version verify page can

In my laptop, I have openjdk1.6, openjdk-1.7, and openjdk1.8 installed. I can see all of them through update-alternative --config java. $update-alternatives --config java There are 3 choices for the ...
0
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2answers
2k views

How to find Java log file

I have installed open jdk 7 in ubuntu & I have enable java logg option in java console. But I cant find the java log file as I tried my best.I have no idea what is the actual name of this log file ...
0
votes
1answer
349 views

how to activate Java 8u51 plugin on Firefox?

Can you please advise. I tried to install Java 8u51 plugin. But I'm not able to activate it. Please see below what I get in terminal: $ java -version bash: /usr/bin/java: cannot execute ...
0
votes
1answer
47 views

Cant find Java console in Ubuntu12 [closed]

I am trying to find java console as I critically required java logs for a particular website. But I am unable to find this in ubuntu 12 version.I tried to find this in /usr/lib/jvm/java-1.7.0-openjdk-...
2
votes
0answers
281 views

Is there any problem with OpenJDK on Minecraft?

Mojang recommends using Oracle's JRE, but I see people using OpenJDK all the time. What are the advantages and disadvantages to using one or the other on Ubuntu, either in general or specifically as ...
0
votes
1answer
699 views

openjdk-7-jre installed, but no binaries

I executed sudo apt-get update sudo apt-get install openjdk-7-jre and the package seems to have installed cleanly, but /usr/lib/jvm/java-7-openjdk-amd64/jre/bin/ was empty except for the program ...
1
vote
1answer
389 views

Octave-4.0.0 Configuration step warnings in Ubuntu 15.04 (HDF5/jni.h not found)

I am trying to install Octave-4.0.0 from source following the instructions from the wiki page. I have installed every single dependency (optional too) mentioned on that page. In the configuration step ...
0
votes
1answer
360 views

Best practices for installing Java on secure server running Ubuntu 14.04 LTS [closed]

I see there are a number of ways to install Java on Ubuntu... what I want to know is about which way is best for a server that is secure and running a Java web application. The three ways I know of ...
1
vote
2answers
181 views

Minecraft in 15.04 Connection issues

So I don't know any better way to explain what the problem is other than showing you this. I am using 15.04. Ask me if you need any more information. EDIT: solved, apparently java was just messing ...
1
vote
0answers
7 views

Java not working on Ubuntu 15.04 [duplicate]

When i double click on a .jar file, it opens the archive manager. I have made it executable. I have tried getting Java 6,7 and 8 from the Software center. If i right click on the file and choose to ...
0
votes
1answer
834 views

Can not install java jdk 8

I've installed ubunut 15.04 recently and I've tried to install java JDK 8 but I can not, and I don't know why. I have fallow all that commands: sudo apt-get install python-software-properties sudo ...
0
votes
0answers
292 views

idea-ic IDE fails with “No Java JDK found” error, however my OS has Java installed and exported

I am facing an issue with Idea Intellij. I have Java installed and exported on my machine and it works fine for Pycharms. However, when I try to start Idea Intellij, it gives me Java not found error. ...
0
votes
1answer
52 views

setting up VOCE api in ubuntu

I am using ubuntu 14.04 . I recently downloaded a speech recognition and synthesis api called voce. For installation it told me to run the build.sh file. When I run this script it pops out some errors ...
6
votes
2answers
10k views

OpenJDK vs. Oracle JDK for Android Studio

When I run Android Studio with OpenJDK installed I get a warning recommending the use of Oracle JDK. Is Oracle JDK actually better or is it fine to just stick with OpenJDK? Installing Oracle JDK seems ...
0
votes
0answers
271 views

Possible issues of installing OpenJDK 8 on Ubuntu 12

What are risks/possible issues of installing OpenJDK 8 from PPA (https://launchpad.net/~openjdk-r/+archive/ubuntu/ppa) on Ubuntu 12.04.5 LTS? I understand that OpenJDK 8 never will be in official ...
2
votes
1answer
2k views

what means : java.io.EOFException: Unexpected end of ZLIB input stream? [closed]

The complete : java.util.zip.ZipException: error in opening zip file at java.util.zip.ZipFile.open(Native Method) at java.util.zip.ZipFile.<init>(ZipFile.java:215) at java.util.zip....
3
votes
1answer
1k views

OpenJDK not working

I have run sudo apt-get install openjdk-7-jre It says Reading package lists... Done Building dependency tree Reading state information... Done openjdk-7-jre is already the newest version....
3
votes
1answer
4k views

Minecraft doesn't connect to Mojang servers/the internet (15.04) [duplicate]

I've been trying to run Minecraft on Ubuntu 15.04 for a while. Whenever I try running, it won't download the launcher pack and it gives me this message: Bootstrap (v5) Current time is Jun 19, 2015 2:...
10
votes
4answers
13k views

Minecraft with OpenJDK 7, I get “the trustAnchors parameter must be non-empty”

Im using Ubuntu 15.04 and OpenJDK 7, trying to run Minecraft. This is what I get. EDIT: Minecraft is working now when I use sudo java -jar Minecraft.jar but doesn't work without super user, how would ...
0
votes
1answer
779 views

lost right-click open with java 7 Ubuntu 14.04

Does the following method seem proper enough (or alternatively, fundamentally flawed) as the way to get back the right-click ability for opening with Java? After some sort of hang and crash of ...