test/jdk/java/awt/BasicStroke/DashOffset.java

*** 27,36 ****
--- 27,37 ----
  import java.awt.Graphics2D;
  import java.awt.GraphicsConfiguration;
  import java.awt.GraphicsEnvironment;
  import java.awt.Image;
  import java.awt.image.BufferedImage;
+ import java.awt.image.IndexColorModel;
  import java.awt.image.VolatileImage;
  import java.io.File;
  import java.io.IOException;
  import java.util.Arrays;
  import java.util.stream.Collectors;
*** 38,48 ****
  
  import static java.awt.image.BufferedImage.TYPE_INT_RGB;
  
  /*
   * @test
!  * @bug 4469881 8217263
   * @summary Verifies that dashed rectangles drawn to the screen line
   *          up with their undashed counterparts
   * @author flar
   * @run main/othervm -Dsun.java2d.uiScale=1 DashOffset
   */
--- 39,49 ----
  
  import static java.awt.image.BufferedImage.TYPE_INT_RGB;
  
  /*
   * @test
!  * @bug 4469881 8217263 8218682
   * @summary Verifies that dashed rectangles drawn to the screen line
   *          up with their undashed counterparts
   * @author flar
   * @run main/othervm -Dsun.java2d.uiScale=1 DashOffset
   */
*** 87,96 ****
--- 88,100 ----
          try {
              final GraphicsConfiguration gc =
                      GraphicsEnvironment.getLocalGraphicsEnvironment()
                                         .getDefaultScreenDevice()
                                         .getDefaultConfiguration();
+             if (gc.getColorModel() instanceof IndexColorModel) {
+                 return;
+             }
  
              VolatileImage vi = gc.createCompatibleVolatileImage(WIDTH, HEIGHT);
              int attempt = 0;
              do {
                  vi.validate(gc);
*** 100,110 ****
              if (attempt > 10) {
                  throw new RuntimeException("Too many attempts: " + attempt);
              }
              validate(snapshot);
          } finally {
!             if (saveImage) {
                  save(snapshot, "volatileImage.png");
              }
          }
      }
  
--- 104,114 ----
              if (attempt > 10) {
                  throw new RuntimeException("Too many attempts: " + attempt);
              }
              validate(snapshot);
          } finally {
!             if (saveImage && snapshot != null) {
                  save(snapshot, "volatileImage.png");
              }
          }
      }