The Java Runtime Environment.

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289
votes
23answers
455k 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 ...
252
votes
0answers
338k views

How do I install Oracle Java JDK 7? [duplicate]

If I downloaded the latest JDK from Oracle, do I just download the .tar file and extract it to /usr/lib/jvm/?
12
votes
6answers
29k 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 ...
13
votes
2answers
13k views

Changing JVM in Java

I only recently discovered the different JVM's on the wiki page and thought I'd start tinkering. Its been difficult to find documentation on how to configure Java on Ubuntu though. Lets say I wanted ...
9
votes
8answers
26k views

Java JRE will not install due to “tar: Error is not recoverable” error

I have been trying to get Java for the past day now. I followed several tutorials but I keep getting the same error. After I put in tar -xvf jre-7u4-linux-i586.tar.gz it says Cannot open: No such file ...
3
votes
2answers
1k views

How do I install a 32-bit Java runtime on an amd64 server with multiarch?

I'm a long time Ubuntu user, but I haven't been following the community for the last several versions. I just did fresh default minimal amd64 install of Oneiric and I need a 32-bit JRE for a ...
0
votes
1answer
87 views

Need help installing java jre

I need help installing java NOT THE DEVELOPER VERSION I can only find about the jdk here. Help? Is there easy installers anywhere?
7
votes
4answers
7k views

Unable to install icedtea plugin on Utopic Unicorn 14.10

Trying to install icedtea-7-plugin on 14.10 x64 gives an error. apt-get install icedtea-7-plugin . . . Selecting previously unselected package icedtea-netx:amd64. . . . Processing triggers for ...
6
votes
1answer
25k views

“Please ensure you have JAVA_HOME points to JDK rather than JRE” message

I have java installed aaa@ubuntu:~$ whereis java java: /usr/bin/java /usr/bin/X11/java /usr/local/java /usr/share/java aaa@ubuntu:~$ whereis javac javac: /usr/bin/javac /usr/bin/X11/javac and ...
2
votes
1answer
469 views

JREs from different vendors on the same system

In various tutorials, it is said, that you should remove existing JRE/JDK before installing new one (e.g. remove OpenJDK before installing the one from Oracle). Is it really necessary? I remember ...
2
votes
4answers
3k views

Chrome reports Java plugin outdated

I've just installed the latest version of JRE (7u5) and Chrome still reports that it's outdated. When I go to chrome://plugins/, it shows the following line for Java: Java - Version: 1.7.0_05 ...