--- /dev/null 2017-05-19 18:25:33.000000000 -0700 +++ new/test/javax/imageio/WriteNullImageTest.java 2017-05-19 18:25:32.000000000 -0700 @@ -0,0 +1,89 @@ +/* + * 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. + * + * 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 4954545 + * @summary This test verifies whether the ImageWriter implementations throw + * IllegalArgumentException when a null image is passed to the write + * method. This is tested for all the image writers available with the + * IIORegistry. + */ + +import java.io.FileOutputStream; +import java.util.Iterator; + +import javax.imageio.ImageIO; +import javax.imageio.ImageWriter; +import javax.imageio.spi.IIORegistry; +import javax.imageio.spi.ImageWriterSpi; +import javax.imageio.stream.ImageOutputStream; + +public class WriteNullImageTest { + + public WriteNullImageTest() { + boolean testFailed = false; + String failMsg = "FAIL: IllegalArgumentException is not thrown by the " + + "ImageWriter when the image passed to the write() method is " + + "null, for the image formats: "; + + try { + IIORegistry reg = IIORegistry.getDefaultInstance(); + ImageWriter writer = null; + Iterator writerSpiIter = reg.getServiceProviders(ImageWriterSpi.class, true); + + while (writerSpiIter.hasNext()) { + ImageWriterSpi writerSpi = (ImageWriterSpi) writerSpiIter.next(); + writer = writerSpi.createWriterInstance(); + String names[] = writerSpi.getFormatNames(); + + FileOutputStream fos = new FileOutputStream("temp"); + ImageOutputStream ios = ImageIO.createImageOutputStream(fos); + writer.setOutput(ios); + + try { + writer.write(null, null, null); + } catch (IllegalArgumentException iae) { + System.out.println("PASS: Expected exception is thrown when null img is passed " + + "to the write method, for the image format: " + names[0]); + System.out.println("\n"); + } catch (Exception e) { + testFailed = true; + failMsg = failMsg + names[0] + ", "; + } + } + + } catch (Exception e) { + testFailed = true; + throw new RuntimeException("Test Failed. Exception thrown: " + e.toString()); + } + if (testFailed) { + failMsg = failMsg.substring(0, failMsg.lastIndexOf(",")); + throw new RuntimeException(failMsg); + } + } + + public static void main(String args[]) { + WriteNullImageTest test = new WriteNullImageTest(); + } +}