javademos/lanes/src/ThreadStopRuntime.java

/**
 * Thread.stop() on 25: still compiles (with a deprecation-for-removal warning) but has thrown
 * UnsupportedOperationException since Java 20. It is REMOVED from the API in Java 26 (see recap26/src/broken/ThreadStopGone.java,
 * docs/output/73-removed-in-26.txt). Thread.suspend() and resume() are checked the same way.
 * Chapter: docs/14-lanes-21-to-25.md
 */
public class ThreadStopRuntime {
    @SuppressWarnings({"removal", "deprecation"})
    public static void main(String[] args) throws Exception {
        System.out.println("java.version = " + System.getProperty("java.version"));
        Thread t = new Thread(() -> {
            try { Thread.sleep(1000); } catch (InterruptedException ignored) { }
        });
        t.start();
        try {
            t.stop();
            System.out.println("Thread.stop(): accepted");
        } catch (UnsupportedOperationException e) {
            System.out.println("Thread.stop(): UnsupportedOperationException");
        }
        t.interrupt();
        t.join();
    }
}