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--- common:procedures:install_java [2026/02/11 18:39] – redhat jtbeduchaud
+++ common:procedures:install_java [2026/02/20 17:43] (current) – external edit 127.0.0.1
@@ Line 1: / Line 1: @@
+====== Install JAVA ======
+  It is recommended to install the latest JAVA openjdk release available
+**Caution:** Software releases produced after October 2025 will require running openJDK 21 or above.
+===== Using Redpeaks Java installer =====
+  * Please if you are on RHEL/Red Hat, upgrade Java using dnf ''sudo dnf install -y java-21-openjdk'' (internet access required)
+  * Otherwise, use redpeaks java installer, the script must be able to reach **https://download.java.net**
+  * Look for ''install_java.sh'' file in Redpeaks install package (tar archive)
+  * Execute the script, it will download and install latest java open JDK runtime.
+  * Run ''java -version'' to confirm you are running the latest version.
+===== Manual install =====
+**Note:** In the below example, jdk install folder is in ''/usr/lib/jvm/''
+  wget https://download.java.net/java/GA/jdk25.0.1/2fbf10d8c78e40bd87641c434705079d/8/GPL/openjdk-25.0.1_linux-x64_bin.tar.gz
+  tar zxvf openjdk-20.0.1_linux-x64_bin.tar.gz -C /usr/lib/jvm/
+  alternatives --install  /usr/bin/java java /usr/lib/jvm/jdk-20.0.1/bin/java 99
+  alternatives --config java -> select new version
+If a JAVA version is already installed on your system before the installation, use alternatives command to change the java version used by your system.
+  alternatives --config java                        # In case of upgrade: Switches the links to point to the new version
+  # logout and login again to have the environment variables defined.
+===== Linux CentOS/RedHat =====
+  * Use the system package manager (dnf/yum) to **install** or **upgrade** the latest supported OpenJDK version
+  * Example on CentOS/RHEL:
+    sudo dnf install -y java-21-openjdk-headless
+    sudo alternatives --config java
+    java -version
+  * Refer to the online documentation specific to your Linux distribution.
+===== Linux Open SUSE Leap 15.2 =====
+Run the following commands to install JAVA openjdk 15
+  zypper up
+  zypper ar http://download.opensuse.org/repositories/Java:/Factory/openSUSE_Leap_15.2/ java
+  zypper mr -p 70 java
+  zypper refresh
+  zypper in java-15-openjdk [To try first in case it is already available]
+  java --version