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I have a need to maintain different versions of a certain product written in java, and uses sun's jdk to build. Some older versions of the product need an older jdk (1.5) and the newer ones need jdk 1.6. So, my question is how can I install (and maintain) multiple versions of sun's jdk. I don't want openjdk, icedtea or whatever else, but different versions of sun's jdk itself.

I ask this as I've seen I have the commands python, python2.6 accessible. If I install another python version, I get it as python2.7 although the python command doesn't point to it. This is exactly the kind of setup I need with java. But anything close also works.

Thank you.

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up vote 3 down vote accepted

Yes. you can. Check this article. http://lj4newbies.blogspot.com/2007/04/2-jvm-on-one-linux-box.html

Hope this helps.

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Thanks, I ended up doing a self-contained installation of jdk 1.5 to be used exactly whenever needed. I am not adding it to alternatives though. –  Shrikant Sharat Dec 15 '10 at 8:31
    
I attempted to use this method for Saucy (13.10), and it appears there is not a sun-java6-jdk package available under the backport libraries for this newer version of Ubuntu. –  shootingstars Sep 5 '13 at 9:51
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