The Java Runtime Environment, comprising of the Java Virtual Machine and standard Java APIs.

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7
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2answers
22k views

How to uninstall Java SE from the command line

Oracle states that the Java SE installer is built using MSI, but the help page, rather unhelpfully doesn't list uninstall options. I need to do a command line uninstall, and I can't figure out or ...
0
votes
1answer
850 views

JRE not running correctly on Windows 7 64-bit

An application called DosBox Game Launcher (DBGL) requires JRE in order to run successfully. I had it installed and running on my old Windows 7 32-bit machine without any problems. Today I got my new ...
2
votes
2answers
689 views

Disassociate file with cmd.exe

I recently chose cmd.exe as a default program for .jar files with instant regret. How do I associate this back again with javaw.exe in the JRE? The default program check box is disabled, so selecting ...
3
votes
2answers
4k views

Cannot install Java JRE on Windows XP workstation (possibly due to previous failed uninstall)

My Windows XP workstation at the office had several old versions of the Java JDK and JRE installed on it. I decided to install the newest Java JDK and uninstall the older JDKs and JREs. This resulted ...
0
votes
1answer
693 views

Can't upgrade to JRE 1.6 from 1.4.2

For the life of me I can't get my JRE upgraded. I've ran JDK6u21 and nothing, re-installed and nothing, tried JRE6u21 and still java version "1.4.2_06" Java(TM) 2 Runtime Environment, Standard ...
0
votes
1answer
455 views

Java missing after firefox 3.6.3 update on xp

XP: I just updated to firefox 3.6.3 and Java is gone, apps don't run. The Java affordances are gone from Options. Do I download Java from somewhere? Can I roll back to a firefox version that was ...
1
vote
2answers
1k views

How to install SmartSVN in Ubuntu 10.04 (Lucid Lynx)? JRE installation is suspected

I followed the instructions in How To: Install/Setup SmartSVN in Ubuntu. I followed everything and it didn't start. I also tried to update my JRE: sudo apt-get install sun-java6-jre sun-java6-plugin ...
1
vote
1answer
3k views

I can not start a .jar-file by double-clicking, only from command-line in Windows

I have a Java application in a .jar-file. I can start it by typing java -jar myapp.jar and the application starts, but if I double-click on the .jar-file, nothing happens. What can be wrong? How can I ...
1
vote
2answers
3k views

I can not start Eclipse anymore

Today, I can not start Eclipse anymore. It worked fine yesterday, then I got a few Windows Updates before turning off the computer. And I also updated to the latest Java RE 1.6_u20 yesterday, but ...
3
votes
1answer
3k views

How to downgrade JRE's version in Ubuntu?

Currently I am having JRE 1.6.0_20. How do I downgrade it to JRE 1.6.0_17? How can I downgrade? I'm using Ubuntu 10.04 LTS.
1
vote
4answers
840 views

Is JRE installed in Windows and Linux?

Do Windows XP, Vista, Windows 7 and all Linux distributions have Java JRE installed so end-users don't have to install it to run Java applications?
4
votes
2answers
14k views

How do I run a program in Ubuntu using Wine that requires JRE?

I have an application that requires JRE to run on Windows. I have now migrated to Ubuntu and am trying to run the same application using WINE. However I get the error: "No Java Found". Any ideas how ...