| /* |
| * Copyright (c) 2005, 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. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * @test |
| * @bug 6275251 |
| * @summary Verifies that GIF image writer throws IllegalStateException if |
| * assigned output stream was cleared by reset() method |
| */ |
| |
| import java.awt.Color; |
| import java.awt.Graphics2D; |
| import java.awt.image.BufferedImage; |
| import java.io.ByteArrayOutputStream; |
| import java.io.IOException; |
| |
| import javax.imageio.ImageIO; |
| import javax.imageio.ImageWriter; |
| import javax.imageio.stream.ImageOutputStream; |
| |
| public class WriterResetTest { |
| public static void main(String[] args) throws IOException { |
| ImageWriter w = ImageIO.getImageWritersByFormatName("GIF").next(); |
| if (w == null) { |
| throw new RuntimeException("No writers available!"); |
| } |
| |
| ByteArrayOutputStream baos = |
| new ByteArrayOutputStream(); |
| |
| ImageOutputStream ios = |
| ImageIO.createImageOutputStream(baos); |
| |
| w.setOutput(ios); |
| |
| BufferedImage img = createTestImage(); |
| |
| try { |
| w.reset(); |
| w.write(img); |
| } catch (IllegalStateException e) { |
| System.out.println("Test passed"); |
| } catch (Throwable e) { |
| throw new RuntimeException("Test failed", e); |
| } |
| } |
| |
| private static BufferedImage createTestImage() { |
| BufferedImage img = new BufferedImage(100, 100, |
| BufferedImage.TYPE_INT_RGB); |
| Graphics2D g = img.createGraphics(); |
| g.setColor(Color.white); |
| g.fillRect(0, 0, 100, 100); |
| g.setColor(Color.black); |
| g.fillRect(20, 20, 60, 60); |
| |
| return img; |
| } |
| } |