Install JDK with "yum" Command

JDK Tutorials - Herong's Tutorial Examples

∟Install JDK with "yum" Command

This section provides a tutorial on how to download and install JDK packages using 'yum' command on CentOS systems. It will automatically install dependencies.

Actually, the YUM (Yellowdog Updater, Modified) tool on CentOS is much better than the RPM (Red Hat Package Manager). Here is what I did to install Open JDK 1.8 on my CentOS system.

1. Query existing JDK 1.6 base package. No updates available.

herong$ yum info java-1.6.0-openjdk

...
Installed Packages
Name        : java-1.6.0-openjdk
Arch        : i686
Epoch       : 1
Version     : 1.6.0.41
Release     : 1.13.13.1.el6_8
Size        : 73 M
Repo        : installed

2. Query existing JDK 1.7 base package. Update of 1.7.0.241 is available. I can install it, if needed.

herong$ yum info java-1.7.0-openjdk
Installed Packages
Name        : java-1.7.0-openjdk
Arch        : i686
Epoch       : 1
Version     : 1.7.0.161
...

Available Packages
Name        : java-1.7.0-openjdk
Arch        : i686
Epoch       : 1
Version     : 1.7.0.241

3. Query JDK 1.8 base package. It is available!

herong$ yum info java-1.8.0-openjdk

Loaded plugins: fastestmirror, refresh-packagekit, security
Loading mirror speeds from cached hostfile
 * base: mirrors.aliyun.com
 * epel: hkg.mirror.rackspace.com
 * extras: mirrors.aliyun.com
 * updates: mirrors.aliyun.com
Available Packages
Name        : java-1.8.0-openjdk
Arch        : i686
Epoch       : 1
Version     : 1.8.0.232.b09
Release     : 1.el6_10
Size        : 219 k

4. Install JDK 1.8 base package with "root" account. "yum" is smart to automatically install dependencies.

herong# yum install java-1.8.0-openjdk

Loaded plugins: fastestmirror, refresh-packagekit, security
Setting up Install Process
...
Resolving Dependencies
...
Total download size: 34 M
Is this ok [y/N]: y
...
Installed:
  java-1.8.0-openjdk.i686 1:1.8.0.232.b09-1.el6_10

Dependency Installed:
  java-1.8.0-openjdk-headless.i686 1:1.8.0.232.b09-1.el6_10

Dependency Updated:
  nspr.i686 0:4.21.0-1.el6_10
  nss.i686 0:3.44.0-7.el6_10
  nss-softokn.i686 0:3.44.0-6.el6_10
  nss-softokn-freebl.i686 0:3.44.0-6.el6_10
  nss-sysinit.i686 0:3.44.0-7.el6_10
  nss-tools.i686 0:3.44.0-7.el6_10
  nss-util.i686 0:3.44.0-1.el6_10

5. Verify the Open JDK base component, JRE (Java Runtime Environment). I see the "jre" sub-directory.

herong# ls -l /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.232.b09-1.el6_10.i386
drwxr-xr-x. 4 root root 4096 Jan  2 16:33 jre

6. Install the JDK 1.8 "devel" package.

herong# yum install java-1.8.0-openjdk-devel

...
Total download size: 10 M
Installed size: 40 M
Is this ok [y/N]: y

...
Installed:
  java-1.8.0-openjdk-devel.i686 1:1.8.0.232.b09-1.el6_10

6. Verify the full Open JDK installation.

herong$ ls -l /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.232.b09-1.el6_10.i386
drwxr-xr-x. 2 root root 4096 Jan  2 16:37 bin
drwxr-xr-x. 3 root root 4096 Jan  2 16:37 include
drwxr-xr-x. 4 root root 4096 Jan  2 16:33 jre
drwxr-xr-x. 3 root root 4096 Jan  2 16:37 lib
drwxr-xr-x. 2 root root 4096 Jan  2 16:37 tapset

herong$ java -version
openjdk version "1.8.0_232"
OpenJDK Runtime Environment (build 1.8.0_232-b09)
OpenJDK Server VM (build 25.232-b09, mixed mode)

herong$ javac -version
javac 1.8.0_232