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.
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.
Switch all alternatives of registered jre/sdk installations to automatic mode.
Set all alternatives of the registered jre/sdk installation to the program
path provided by the <jname> installation.
Limit the actions to alternatives belong to a runtime environment,
not a development kit.
Limit the actions to alternatives belong to the headless part of a runtime environment.
Limit the actions to alternatives providing browser plugins.
Display a help message.
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).
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>.
update-java-alternatives and this manual page was written by Matthias