jdk/test/java/awt/Graphics2D/TransformSetGet/TransformSetGet.java

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import java.awt.GraphicsConfiguration;
import java.awt.GraphicsEnvironment;
import java.awt.geom.AffineTransform;
import java.awt.image.VolatileImage;

import sun.java2d.SunGraphics2D;

/**
 * @test
 * @bug 8000629
 * @summary Set/get transform should work on constrained graphics.
 * @author Sergey Bylokhov
 * @modules java.desktop/sun.java2d
 */
public class TransformSetGet {

    public static void main(final String[] args) {
        final GraphicsEnvironment ge =
                GraphicsEnvironment.getLocalGraphicsEnvironment();
        final GraphicsConfiguration gc =
                ge.getDefaultScreenDevice().getDefaultConfiguration();
        final VolatileImage vi = gc.createCompatibleVolatileImage(200, 200);
        final SunGraphics2D sg2d = (SunGraphics2D) vi.createGraphics();

        sg2d.constrain(0, 61, 100, 100);
        final AffineTransform expected = sg2d.cloneTransform();
        sg2d.setTransform(sg2d.getTransform());
        final AffineTransform actual = sg2d.cloneTransform();
        sg2d.dispose();
        vi.flush();
        if (!expected.equals(actual)) {
            System.out.println("Expected = " + expected);
            System.out.println("Actual = " + actual);
            throw new RuntimeException("Wrong transform");
        }
    }
}