Java System Environment Variable

Question

Does Java have a default System Environment Variable that will always be read/appended when we set it? CATALINA_OTPS/JAVA_OPTS etc seems only for T

Answer 1

Java has a standard OS system environment variable that is always set when the JVM is launched:

• os.name
• os.arch
• os.version

All accessible via 'System.getProperty(propertyName)`

If you need anything more than this you could always use the Management API.