2.1 – Install J2SE Software Development Kit (JDK)

Download the Java 2 Standard Edition (J2SE) JDK version 1.8 or later from one of these sources:

• http://www.oracle.com/technetwork/java/javase/downloads/index.html
• https://developers.redhat.com/products/openjdk/download
• https://www.azul.com/downloads/zulu/
• http://jdk.java.net/
• https://aws.amazon.com/corretto/

NOTE:Note: Downloading the Java Runtime Environment (JRE) instead is not recommended.

Open JDK 8, 11 and LTS versions are recommended. JRE is not recommended because it’s updated automatically and the old version will be uninstalled. Please install JCE 8 if you are using Java 8: https://www.oracle.com/technetwork/java/javase/downloads/jce8-download-2133166.html

Install the JDK according to the instructions included with the release. Set an environment variable JAVA_HOME to the pathname of the directory into which you installed the SDK release:

echo "export JAVA_HOME=/usr/java/default/"> /etc/profile.d/java_home.sh

Verify the Java version you are using by running the following command in a command prompt:

java –version

If your RDP server has Network Level Authentication enabled, the connection may fail depends on what Java version you are using.

Java 1.8: Please install TLS 1.2 Windows update on Windows 7 and Windows 2008:
https://support.microsoft.com/en-us/kb/3080079