/* * Copyright (c) 2022, 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 * @summary Verifies that canDecode does not throw EOFException * if the file has too few bytes. * @run main CanDecodeTest */ import java.io.ByteArrayInputStream; import java.io.IOException; import java.io.InputStream; import javax.imageio.ImageIO; import javax.imageio.ImageReader; import javax.imageio.spi.ImageReaderSpi; import javax.imageio.stream.ImageInputStream; public class CanDecodeTest { private static final String[] FORMATS = { "WBMP", "BMP", "GIF", "PNG", "TIFF", "JPEG" }; public static void main(String[] args) { for (String format : FORMATS) { ImageReader reader = ImageIO.getImageReadersByFormatName(format).next(); ImageReaderSpi spi = reader.getOriginatingProvider(); for (int n=0; n<8; n++) { InputStream dataStream = new ByteArrayInputStream(new byte[n]); try { ImageInputStream iis = ImageIO.createImageInputStream(dataStream); if (spi.canDecodeInput(iis)) { throw new RuntimeException("Test failed for " + format + " format: shall not decode."); } } catch (IOException e) { throw new RuntimeException("Test failed for " + format + " format: " + e, e); } } } } }