test/jdk/java/awt/BasicStroke/DashZeroWidth.java

*** 1,7 ****
  /*
!  * Copyright (c) 2003, 2017, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.
--- 1,7 ----
  /*
!  * Copyright (c) 2003, 2019, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.
*** 27,60 ****
  import java.awt.GraphicsConfiguration;
  import java.awt.GraphicsEnvironment;
  import java.awt.Image;
  import java.awt.geom.Line2D;
  import java.awt.image.BufferedImage;
  import java.awt.image.VolatileImage;
  
  import static java.awt.image.BufferedImage.TYPE_INT_ARGB;
  
  /**
   * @test
!  * @bug 4779211 8019816
   * @summary REGRESSION: 1.4 Dashed lines disappear if BasicStroke width=0.0
   * @run main/othervm -Dsun.java2d.uiScale=1 DashZeroWidth
   */
  public final class DashZeroWidth {
  
      public static void main(final String[] args) {
          BufferedImage img = new BufferedImage(200, 40, TYPE_INT_ARGB);
          draw(img);
          validate(img);
  
-         if (GraphicsEnvironment.isHeadless()) {
-             return;
-         }
- 
          GraphicsConfiguration gc =
                  GraphicsEnvironment.getLocalGraphicsEnvironment()
                          .getDefaultScreenDevice().getDefaultConfiguration();
  
          VolatileImage vi = gc.createCompatibleVolatileImage(200, 40);
          BufferedImage snapshot;
          int attempt = 0;
          while (true) {
--- 27,62 ----
  import java.awt.GraphicsConfiguration;
  import java.awt.GraphicsEnvironment;
  import java.awt.Image;
  import java.awt.geom.Line2D;
  import java.awt.image.BufferedImage;
+ import java.awt.image.IndexColorModel;
  import java.awt.image.VolatileImage;
  
  import static java.awt.image.BufferedImage.TYPE_INT_ARGB;
  
  /**
   * @test
!  * @bug 4779211 8019816 8198411
!  * @key headful
   * @summary REGRESSION: 1.4 Dashed lines disappear if BasicStroke width=0.0
   * @run main/othervm -Dsun.java2d.uiScale=1 DashZeroWidth
   */
  public final class DashZeroWidth {
  
      public static void main(final String[] args) {
          BufferedImage img = new BufferedImage(200, 40, TYPE_INT_ARGB);
          draw(img);
          validate(img);
  
          GraphicsConfiguration gc =
                  GraphicsEnvironment.getLocalGraphicsEnvironment()
                          .getDefaultScreenDevice().getDefaultConfiguration();
+         if (gc.getColorModel() instanceof IndexColorModel) {
+             System.err.println("Skipping VolatileImage because of IndexColorModel");
+             return;
+         }
  
          VolatileImage vi = gc.createCompatibleVolatileImage(200, 40);
          BufferedImage snapshot;
          int attempt = 0;
          while (true) {