136 lines
4.1 KiB
Java
136 lines
4.1 KiB
Java
/*
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* Copyright (c) 2002, 2017, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 4660047
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* @summary Tests if the JPEG reader/writer crashes the VM if certain methods
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* are called after a call to dispose()
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*/
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import java.awt.image.BufferedImage;
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import java.io.ByteArrayInputStream;
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import java.io.ByteArrayOutputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.OutputStream;
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import java.util.Iterator;
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import javax.imageio.ImageIO;
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import javax.imageio.ImageReader;
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import javax.imageio.ImageWriter;
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import javax.imageio.stream.ImageInputStream;
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import javax.imageio.stream.ImageOutputStream;
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public class CrashAfterDispose {
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public static void main(String[] args) throws IOException {
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InputStream bais = new ByteArrayInputStream(new byte[100]);
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ImageInputStream iis = ImageIO.createImageInputStream(bais);
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// find the JPEG reader
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ImageReader reader = null;
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Iterator readers = ImageIO.getImageReadersByFormatName("jpeg");
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if (readers.hasNext()) {
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reader = (ImageReader)readers.next();
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} else {
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throw new RuntimeException("Unable to find a reader!");
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}
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// dispose the reader, then poke and prod it... the reader should
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// throw exceptions (which will be caught by this test), but it
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// should not crash the VM
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reader.dispose();
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try {
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reader.setInput(iis);
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} catch (IllegalStateException e) {
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}
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try {
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reader.read(0);
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} catch (IllegalStateException e) {
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}
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try {
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reader.abort();
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} catch (IllegalStateException e) {
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}
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try {
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reader.reset();
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} catch (IllegalStateException e) {
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}
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try {
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reader.dispose();
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} catch (IllegalStateException e) {
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}
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// find the JPEG writer
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ImageWriter writer = null;
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Iterator writers = ImageIO.getImageWritersByFormatName("jpeg");
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if (writers.hasNext()) {
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writer = (ImageWriter)writers.next();
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} else {
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throw new RuntimeException("Unable to find a writer!");
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}
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// set up output stream
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OutputStream baos = new ByteArrayOutputStream();
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ImageOutputStream ios = ImageIO.createImageOutputStream(baos);
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BufferedImage bi = new BufferedImage(10, 10,
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BufferedImage.TYPE_INT_RGB);
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// dispose the writer, then poke and prod it... the writer should
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// throw exceptions (which will be caught by this test), but it
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// should not crash the VM
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writer.dispose();
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try {
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writer.setOutput(ios);
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} catch (IllegalStateException e) {
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}
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try {
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writer.write(bi);
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} catch (IllegalStateException e) {
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}
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try {
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writer.abort();
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} catch (IllegalStateException e) {
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}
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try {
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writer.reset();
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} catch (IllegalStateException e) {
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}
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try {
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writer.dispose();
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} catch (IllegalStateException e) {
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}
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}
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}
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