CODEWITHSUNDEEP
java
Priyank Thakkar
Priyank Thakkar

Reputation: 4852

Multiple JRE on a system

I am using a windows machine with multiple version of JRE installed.

If I run an eclipse RCP application, which version of JRE it will be using, the latest JRE version or the one mentioned under JAVA_HOME in Environment Variables -> System Variables?

Upvotes: 1

Views: 2094

Answers (3)

sambi reddy
sambi reddy

Reputation: 3085

It must be using the default JRE that's available in your OS path first unless you override it by specifying -vm arg in .ini file.

Upvotes: 1

PhiLho
PhiLho

Reputation: 41132

In the eclipse.ini file in the Eclipse installation directory, you can add the lines:

-vm
C:/Java/jdk1.7.0_09_x64/jre/bin/server/jvm.dll

Of course, adjust the path to the JDK / JRE you want Eclipse to use.

[EDIT] Re-reading your question, I notice you mention "and eclipse RCP application", so perhaps you mean something else than Eclipse. The answer might be different then. I suggest you add more tags (and improve the subject) to reflect better the scope of your question.

[EDIT] From a quick research, it seems that Eclipse RPC applications also use an .ini file (that's the case of the Eclipse Memory Analyzer I have on my disk), so my trick above might work... It might depend on the launcher you want to use, too.

Upvotes: 3

Andy
Andy

Reputation: 1994

Eclipse will be executed in the VM defined in JAVA_HOME by default.

But you may change the JRE/JDK, programs are executed/compiled with under Eclipse > Windows > Preferences > Java > Installed JREs.

Upvotes: 1

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