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Editorial Team
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Asked: 2026-06-02T12:19:38+00:00

I am looking for a tool that would let me switch the running Java

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I am looking for a tool that would let me switch the running Java implementation, like Ruby’s RVM (or RBENV). I am aware that Debian systems provide the alternatives mechanism, and that I can set JAVA_HOME manually.

However, I’d like something more automated if possible. If it could fetch JDKs that would be even better, but not necessary.

I’ve searched but didn’t see anything like it. My guess the Java ecosystem got used to having this functionality in an IDE.

Edit: Changing PATH and JAVA_HOME seems to work fine. It could be trivially automated.

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  1. Editorial Team

    I think there is no such tool. Every platform has hits own system. Debian/Ubuntu, RedHat/CentOS and SLE/OpenSUSE ( probably some other distributions as well) use the alternative mechanism. Mac OSX has its own buildin switching mechanism to change the current used JVM.

    I have to maintain a lot of developer workstations and servers. All *nix based (OSX, Linux, Solaris) and used to install all JVMs in a directory and create a symlink CURRENT to the Version that should be used. The JAVA_HOME and PATH variable pointing to this CURRENT symlink. If Ia want to use another version only haf to move the CURRENT symlink. No further actions are necessary.

    Unfortunately this approach does not work for Windows based systems.

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