Java¶

module avail openjdk/    # versions of OpenJDK

OpenJDK is open-source implementation of the Java Platform, Standard Edition, and related projects.

Usage¶

Run the environment as

 #!/bin/bash
 export CLASSPATH=/home/something/something.jar:/software/java-libs/javamail-1.4/mail.jar:/software/java-libs/jaf-1.1/activation.jar
 java cz.something.SomeClass

Threading and PBS resources violation¶

Java uses the garbage collector and other techniques. This can increase the number of used processors which can violate the CPU limit set by scheduler. To avoid this you can:

try to request more resources (eg. 4 more processors)
run Java with some parameters, eg. java -XX:+UseSerialGC -XX:-BackgroundCompilation

Last update: September 7, 2023