Altair Panopticon Real Time Installation and Reference Help

Open JDK 11+ Dependencies

The AltairPanopticonVisualizationServerWAR_<version number>.zip file includes OpenJDK11Dependencies.zip which contains necessary dependencies for running Altair Panopticon software on Open JDK 11 and up.

The overview, installation, and list of the contents of OpenJDK11Dependencies.zip are provided and discussed in the OpenJDK11Dependencies_README.txt file.

Background

In Java 9, a number of Java EE modules were marked for deprecation, and subsequently removed completely from Java 11.

With missing Java EE dependencies, the typical exceptions would include NoClassDefFoundErrorexceptions being thrown for javax/xml/bind classes.

Exception in thread "main" java.lang.NoClassDefFoundError: javax/xml/bind/JAXBException

at monitor.Main.main(Main.java:27)

Caused by: java.lang.ClassNotFoundException: javax.xml.bind.JAXBException

at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:582)

at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:185)

at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:496)

... 1 more

In order to support deployment on either Java 1.8 or Open JDK 11+, we have packaged the necessary Java EE dependencies separately for simple installation in Tomcat.

Installation

Do the following to make the dependencies available to the JVM and the Altair Panopticon server:

1. Stop Tomcat.

2. Unzip the contents of OpenJDK11Dependencies.zip into the TOMCAT_HOME/lib folder.

3. Start Tomcat.