Installing Java


Describe the required procedures to install Java.

Target audience

Intended for the OpMon administrators and the IT teams that after performing the OpMon installation, need to install Java as well.


1) Verifying older versions

To verify if already exists:

[root@opmon ~]# rpm -qa | grep java

In this case, there is an unsupported version, you need to remove.

[root@opmon ~]# rpm -e glib-java-0.2.6-3.fc6 java-1.4.2-gcj-compat-

2) Installation procedures

Proceed with the installation via yum

[root@opmon ~]# yum install java -y
Loaded plugins:: dellsysid, downloadonly, fastestmirror, priorities, security
Loading mirror speeds from cached hostfile
  * addons:
  * base:
  * extras:
  * updates:
OpMon-base                                               |  951  B
OpMon-extras                                             |  951  B
addons                                                   |  951  B
base                                                     |  1.1 KB
extras                                                   |  2.1 KB
updates                                                  |  1.9 KB
Setting up Install Process
Resolving Dependencies
There are unfinished transactions remaining. You might consider running yum-complete-transaction first to finish them.
--> Running transaction check
---> Package java-1.6.0-openjdk.i386 1: set to be updated
--> Processing Dependency: for package: java-1.6.0-openjdk
--> Processing Dependency: tzdata-java for package: java-1.6.0-openjdk
--> Running transaction check
---> Package giflib.i386 0:4.1.3-7.3.3.e15 set to be updated
---> Package tzdata-java.i386 0:2011g-1.e15 set to be updated
--> Finished Dependency Resolution
Dependencies Resolved
Package                  Arch        Version           Repository
  java-1.6.0-openjdk     i386  1:   updates
Installing for dependencies:
  giflib                 i386  4.1.3-7.3.3.e15              updates
  tzdata-java            i386    2011g-1.e15                updates
Transaction Summary
Install             3 Package (s)
Upgrade             0 Package (s)
Total download size: 38 M
Is this ok [y/N]: y
Downloading Packages
(1/3) : giflib-4.1.3-7.3.3.e15.i386.rpm                      |  39 KB
(2/3) : tzdata-java-2011g-1.e15.i386.rpm                     | 180 KB
(3/3) : java-1.6.0-openjdk-  |  38 KB
Total                                               8.2 MB/s  |  38  KB
Running rpm_check_debug
Running Transaction Test
Finished Transaction Test
Transaction test Succeeded
Running Transaction
   Installing      :  tzdata-java
   Installing      :  giflib
   Installing      :  java-1.6.0-openjdk
   java-1.6.0-openjdk.i386  1:
Dependency Installed:
   giflib.i386  0:4.1.3-7.3.3.e15         tzdata-java.i386   0:2011g-1.e15

3) Testing

To test the version:

[root@opmon ~]# java-version
java version "1.6.0_20"
OpenJDK Runtime Environment (IcedTea6 1.9.8)  (rhel-
OpenJDK Server VM (build 19.0-b09, mixed mode)
Updated on December 23, 2016

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