--- /dev/null 2017-05-22 14:23:48.000000000 -0700 +++ new/test/javax/imageio/spi/PluginSpiTest.java 2017-05-22 14:23:48.000000000 -0700 @@ -0,0 +1,96 @@ +/* + * 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 6275112 + * @summary Test verifies that imageReaders for base image formats return + * meaningful name of service provider interface (SPI) for base image + * formats + * @modules java.desktop/com.sun.imageio.plugins.gif + * java.desktop/com.sun.imageio.plugins.png + * java.desktop/com.sun.imageio.plugins.jpeg + * java.desktop/com.sun.imageio.plugins.bmp + * java.desktop/com.sun.imageio.plugins.wbmp + */ + +import javax.imageio.ImageIO; +import javax.imageio.ImageReader; +import javax.imageio.ImageWriter; +import javax.imageio.spi.ImageReaderSpi; + +public class PluginSpiTest { + + public static void main(String[] args) { + String format[] = { "GIF", "PNG", "JPEG", "BMP", "WBMP" }; + for (int i = 0; i < format.length; i++) { + System.out.println("\nFormat " + format[i]); + testFormat(format[i]); + } + } + + public static void testFormat(String format) { + ImageReader reader = + ImageIO.getImageReadersByFormatName(format).next(); + if (reader == null) { + throw new RuntimeException("Failed to get reader for " + format); + } + + ImageReaderSpi readerSpi = reader.getOriginatingProvider(); + System.out.println(format + " Reader SPI: " + readerSpi); + + String writerSpiNames[] = readerSpi.getImageWriterSpiNames(); + if (writerSpiNames == null || writerSpiNames.length == 0) { + throw new RuntimeException("Failed to get writer spi names for " + + format); + } + + System.out.println("Available writer spi names:"); + for (int i = 0; i < writerSpiNames.length; i++) { + System.out.println(writerSpiNames[i]); + try { + Class spiClass = Class.forName(writerSpiNames[i]); + if (spiClass == null) { + throw new RuntimeException("Failed to get spi class " + + writerSpiNames[i]); + } + System.out.println("Got class " + spiClass.getName()); + + Object spiObject = spiClass.newInstance(); + if (spiObject == null) { + throw new RuntimeException("Failed to instantiate spi " + + writerSpiNames[i]); + } + System.out.println("Got instance " + spiObject); + } catch (Throwable e) { + throw new RuntimeException("Failed to test spi " + + writerSpiNames[i]); + } + } + + ImageWriter writer = ImageIO.getImageWriter(reader); + if (writer == null) { + throw new RuntimeException("Failed to get writer for " + format); + } + } +}