NAME

update-java-alternatives – update alternatives for jre/sdk installations  

SYNOPSIS

update-java-alternatives [–jre] [–plugin] [-t|–test|-v|–verbose]
      -l|–list [<jname>]
      -s|–set <jname>
      -a|–auto
      -h|-?|–help  

DESCRIPTION

update-java-alternatives updates all alternatives belonging to one runtime or development kit for the Java language. A package does provide these information of it’s alternatives in /usr/lib/jvm/.<jname>.jinfo.  

OPTIONS

-l|–list [<jname>]
List all installed packages (or just <jname>) providing information to set a bunch of java alternatives. Verbose output shows each alternative provided by the packages.
-a|–auto
Switch all alternatives of registered jre/sdk installations to automatic mode.
-s|–set <jname>
Set all alternatives of the registered jre/sdk installation to the program path provided by the <jname> installation.
–jre
Limit the actions to alternatives belong to a runtime environment, not a development kit.
–jre-headless
Limit the actions to alternatives belong to the headless part of a runtime environment.
–plugin
Limit the actions to alternatives providing browser plugins.
-h|–help
Display a help message.
-t|–test
Don’t actually do anything, just say what would be done. The implementation status of this option is the same as for update-alternatives (not implemented).
-v|–verbose
Verbose output.

 

FILES

/usr/lib/jvm/.*.jinfo
A text file describing a jre/sdk installation. Consists of some variables of the form <var>=<value> and a list of alternatives of the form jre|jdk <name> <path>.

 

AUTHOR

update-java-alternatives and this manual page was written by Matthias Klose <[email protected]>.

Willie has over 15 years of experience in Linux system administration and DevOps. After managing infrastructure for startups and enterprises alike, he founded Command Linux to share the practical knowledge he wished he had when starting out. He oversees content strategy and contributes guides on server management, automation, and security.