This step creates a custom Java runtime from a given set of Java modules of an existing Java runtime.
The location of the existing Java runtime must be declared in the JAVA_HOME
environment variable.
This step can be used to create a smaller custom Java runtime containing only the Java modules required to either build a Java application or run a Java application.
-
add_modules(default:java.base) a comma separated list of Java modules to be included in the custom Java runtime (any dependent modules will also be implicitly included). To list the set of modules of a Java runtime use the commandjava --list-modules. -
compress(default:2) the compression level for resources. A value of0means no compression. A value of1means constant strings are shared. A value of2means ZIP compression is used -
output(default:javaruntime) the directory under which the contents of the custom Java runtime will be placed
Supplying no options will create the smallest possible Java runtime that
contains just the java.base module.