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Installing OpenJDK 11 on CentOS using yum

stackoverflow.com › questions › 53378483 › installing-openjdk-11-on-centos-using-yum

As of November 2020

you can achieve this in 2 steps:

Install Java 11 using yum:

yum install java-11-openjdk-devel

Get all the Java configurations available in your machine:

alternatives --config java

Run the above command, select the version you want to set, I've set 1 here:

There are 2 programs which provide 'java'.
Selection    Command

-----------------------------------------------
   1           java-11-openjdk.x86_64 (/usr/lib/jvm/java-11-openjdk-11.0.8.10-0.el7_8.x86_64/bin/java)
*+ 2           java-1.8.0-openjdk.x86_64 (/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.262.b10-0.el7_8.x86_64/jre/bin/java)

Enter to keep the current selection[+], or type selection number: 1

Check java -version:

openjdk version "11.0.8" 2020-07-14 LTS
OpenJDK Runtime Environment 18.9 (build 11.0.8+10-LTS)
OpenJDK 64-Bit Server VM 18.9 (build 11.0.8+10-LTS, mixed mode, sharing)

Java 11 is now set to be used globally.

Answer from Asad Shakeel on Stack Overflow

Stack Overflow

stackoverflow.com › questions › 53378483 › installing-openjdk-11-on-centos-using-yum

java - Installing OpenJDK 11 on CentOS using yum - Stack Overflow

Top answer

1 of 2

As of November 2020

you can achieve this in 2 steps:

Install Java 11 using yum:

yum install java-11-openjdk-devel

Get all the Java configurations available in your machine:

alternatives --config java

Run the above command, select the version you want to set, I've set 1 here:

There are 2 programs which provide 'java'.
Selection    Command

-----------------------------------------------
   1           java-11-openjdk.x86_64 (/usr/lib/jvm/java-11-openjdk-11.0.8.10-0.el7_8.x86_64/bin/java)
*+ 2           java-1.8.0-openjdk.x86_64 (/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.262.b10-0.el7_8.x86_64/jre/bin/java)

Enter to keep the current selection[+], or type selection number: 1

Check java -version:

openjdk version "11.0.8" 2020-07-14 LTS
OpenJDK Runtime Environment 18.9 (build 11.0.8+10-LTS)
OpenJDK 64-Bit Server VM 18.9 (build 11.0.8+10-LTS, mixed mode, sharing)

Java 11 is now set to be used globally.

2 of 2

The reason, in short, is because someone has to maintain the packages and put these into the repositories your system is using and verify, that they run stable. For example, the OpenJDK 11 on Debian is still in buster (testing) and sid (unstable) and therefore not available in any stable branch. I guess in CentOS (I am not that familiar with it tbh.) it's the same situation.

Sooner or later you'll have to install software without a manager in any OS, so even if you're saying you're a noob, you'll have to learn that sooner or later. And if you want to use openjdk11 now, you'll have to use either an unofficial repository or install the software by hand, what I'd recommend.

However, here is a guide which is the second hit on Google for openjdk11 centos:

curl -O https://download.java.net/java/GA/jdk11/13/GPL/openjdk-11.0.1_linux-x64_bin.tar.gz
tar zxvf openjdk-11.0.1_linux-x64_bin.tar.gz
mv jdk-11.0.1 /usr/local/

vi /etc/profile.d/jdk11.sh

# create new
export JAVA_HOME=/usr/local/jdk-11.0.1
export PATH=$PATH:$JAVA_HOME/bin

source /etc/profile.d/jdk11.sh

java -version

openjdk version "11.0.1" 2018-10-16
OpenJDK Runtime Environment 18.9 (build 11.0.1+13)
OpenJDK 64-Bit Server VM 18.9 (build 11.0.1+13, mixed mode)

Source: https://www.server-world.info/en/note?os=CentOS_7&p=jdk11&f=2

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