36.8 Creating Custom Runtimes with jlink
A new tool in JDK 9 is the jlink command—Java’s linker for creating custom runtime images.25 In a custom runtime, you can include just what’s necessary for a given app or set of apps to execute. For example, if you’re creating a runtime for a device that does not support GUIs, you can create a runtime without the corresponding modules that support Swing and JavaFX. In fact, many of this book’s text-only, command-line examples can execute on a runtime that contains only the java.base module.
36.8.1 Listing the JRE’s Modules
With modularization the JRE is a proper subset of the JDK.26 If you run the command: ...
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