Summary

Specify that after java.awt.PrintJob.end() has been called, java.awt.PrintJob.getGraphics() will return null.

Problem

It has always been the behaviour that after PrintJob.end() has been called, PrintJob.getGraphics() will return null, but this has never been documented.

Solution

Update the specification accordingly.

Specification

Add the following text to the method

 public Graphics java.awt.PrintJob.getGraphics();

+     * If {@code PrintJob.end()} has been called, this method will
+     * return {@code null}.