Opening JNLP File in Java 6 JRE instead of JRE 7

Question

I have Java 6-based Java Web Start application that I need to open on a Windows machine. The machine has JRE 7 installed, with JRE 6 copied manually to the Program Fil

Answer 1

Jnlp jre settings are under Java settings which is in Control Panel.

Go to Control Panel and search "Java". In my case it is Java (32-bit). Open it and select Java tab, then Java Application Runtime Settings

Answer 2

I have Java 6-based Java Web Start application ..How can I force JRE 6 just for this application?

Use an appropriate version attribute in the j2se element.

<resources>
    <!-- Any 1.6 JRE -->
    <j2se version='1.6*'>
    ...
</resources> 

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Warning

This solution no longer seems to work for installing earlier versions of the JVM!

The best reason I can think of for why it would fail to work is that Oracle is tiring of releasing security updates for earlier Java versions - so is forcing every user to use the latest JVM.

Answer 3

Just drag link of jnlp file over appropriate version of javaws and it "Open with"picture how to open jnlp with javaws MacOS users usually open files the same way

Answer 4

I had the exact same problem. I created a bat file that changes the JAVA_HOME variable, then uses javaws to run the jnlp file and it worked for me.

Contents of the bat file:

SET "JAVA_HOME=[path to your jre folder]"
javaws [path to your jnlp]

Hope it helps :)

Answer 5

Another plausible solution that worked for me was to rename the javaws.exe(javaws2) program file of the most recent JRE/JDK since JVM always search for the newest version installed. If you need to rollback changes, just rename again to the original value

Answer 6

I realize this is the oldest post ever, but it came up when I searched for a similar problem. Easiest way to deal with this (as a one time solution that won't affect the system overall) is to install a parallel older version of Java, and drag the jnlp on to the javaws.exe. (I had a web app that used Java 5 and wouldn't open otherwise)