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

Sponsored Content

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

View Public Profile for Peasant

Find all posts by Peasant

6 More Discussions You Might Find Interesting

1. Red Hat

Java in Fedora, first

For those of us who slept through the month of June, the OpenJDK 6 stack in Fedora was certified as TCK compliant. Meaning it can carry the “100% Java(TM)” moniker. Rich Sharples has a nice write-up (with a second part answering the blogosphere): In June, 2007 - Red Hat launched the IcedTea...

2. Red Hat

help with installing java EE on fedora 14

Hi Forum Im a new to fedora and was wondering ,Can anybody direct me to a site that shows me how to install Java EE 6 SDK Update 1 (with JDK 6 Update 23) for fedora 14. NOT openjdk i need oracles java to develop a web app using tomcat 7.0 Any help would be much appreciated and thank you in advance

3. Red Hat

What Sun Java packages are available for Fedora?

Are all of these java packages available for fedora? I use several VERY picky websites that want all of these packages to properly work. sun-java6-jre sun-java6-bin sun-java6-jdk sun-java6-plugin sun-java6-fonts

4. Solaris

How to install java (jdk-74) on solaris 10?

What kind of required java type for installed? which address link, i need to download the package. i have zcat this version jdk-7-solaris-sparc.tar.Z and then installed each the packages with pkgadd -d . , but my java version still java full version "1.5.0_24-b02".is it need doanything after...

5. AIX

Any file to differentiate JAVA JRE and JAVA JDK

Folks, Any idea of where can I find a specific file to differentiate JRE and Java JDK installed on AIX platform :cool:

6. UNIX for Advanced & Expert Users

Fedora java classpath

What is the proper way to set your java classpath?

LEARN ABOUT MOJAVE

serialver

serialver(1)						      General Commands Manual						      serialver(1)

NAME

       serialver - serial version command

SYNOPSIS

       serialver [ options ] [ classnames ]

       options
	      Command-line options, as specified in this document.

       classnames
	      One or more class names.

DESCRIPTION

       serialver returns the serialVersionUID for one or more classes in a form suitable for copying into an evolving class.  When invoked with no
       arguments, it prints a usage line.

OPTIONS

       -classpath  <directories and zip/jar files separated by:>
		      Set search path for application classes and resources.

       -show	      Displays a simple user interface.  Enter the full class name and press either the Enter key or the Show  button  to  display
		      the serialVersionUID.

       -Joption       Pass  option to the Java virtual machine, where option is one of the options described on the man page for the java applica-
		      tion launcher, java(1). For example, -J-Xms48m sets the startup memory to 48 megabytes. It is a common convention for -J	to
		      pass options to the underlying virtual machine.

SEE ALSO

       See (or search java.sun.com) for the following:

       java.io.ObjectStreamClass @
	    http://java.sun.com/j2se/1.5/docs/api/java/io/ObjectStreamClass.html

								   24 June 2004 						      serialver(1)