Fedora: Uninstall Java JDK 1.8 and install Oracle Java 1.7.15 Post: 303009957

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Operating Systems Linux Fedora Fedora: Uninstall Java JDK 1.8 and install Oracle Java 1.7.15 Post 303009957 by Peasant on Friday 22nd of December 2017 11:59:23 PM

12-23-2017

Moderator

No need to uninstall anything.

Install the required oracle java using rpm.
Using alternatives command as superuser one can change the default java used.

Bare in mind, that perhaps some programs on the system rely on open java, so above change could affect those.

One could also download only required oracle java as compressed archive with all binaries and libraries required.
Create a user on the system which will utilize that java environment.
Unpack the archive under /opt/orajava (for instance)
As root, chown /opt/orajava to user created.
Setup required java options in user home directory profile file (JAVA_HOME etc.)
Configure kernel parameters for that user, depending on the application requirements/load (if applicable, defaults are often ok).

Above setup will have no effect on the system other then running new processes/code (load) under user created above and consuming disk space required.

Hope that helps
Regards
Peasant.

Peasant

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LEARN ABOUT LINUX

byobu-launcher-install

byobu-launcher-install(1)					       byobu						 byobu-launcher-install(1)

NAME

       byobu-launcher-install - Byobu Launcher installation utility

SYNOPSIS

       byobu-launcher-install [-n|--no-logout]

DESCRIPTION

       byobu-launcher-install(1)  is  a  simple utilty that will add a line to your $HOME/.profile file which launches byobu(1) any time you login
       through ssh(1) or on a console(4).

       By default, when users detach from  the	byobu(1)  session  they  will  also  logout.   Users  can  change  this  behavior  by  adding  the
       [-n|--no-logout] option when they run byobu-launcher-install(1).

       You can disable this behavior entirely at any time with the byobu-launcher-uninstall(1) utility.

SEE ALSO

       screen(1), byobu(1), ssh(1), console(4), byobu-launcher-uninstall(1)

       http://launchpad.net/byobu

AUTHOR

       This manpage and the utility were written by Dustin Kirkland <kirkland@ubuntu.com> for Ubuntu systems (but may be used by others).  Permis-
       sion is granted to copy, distribute and/or modify this document and the utility under the terms of the GNU General Public License,  Version
       3 published by the Free Software Foundation.

       The  complete  text  of	the  GNU  General  Public  License  can be found in /usr/share/common-licenses/GPL on Debian/Ubuntu systems, or in
       /usr/share/doc/fedora-release-*/GPL on Fedora systems, or on the web at http://www.gnu.org/licenses/gpl.txt.

byobu								    3 Jan 2010						 byobu-launcher-install(1)