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/* * Copyright (c) 1996, 1998, 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.  Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * 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. */  package sun.tools.jar; import sun.awt.image.URLImageSource;import sun.awt.image.ImageDecoder;import java.net.URL;import java.net.JarURLConnection;import java.util.jar.JarFile;import java.util.jar.JarEntry;import java.io.InputStream;import java.io.IOException;  public class JarImageSource extends URLImageSource {    String mimeType;    String entryName = null;    URL url;     /**     * Create an image source from a Jar entry URL with the specified     * mime type.     */    public JarImageSource(URL u, String type) {        super(u);        url = u;        mimeType = type;    }     /**     * Create an image source from a Jar file/entry URL     * with the specified entry name and mime type.     */    public JarImageSource(URL u, String name, String type) {        this(u, type);        this.entryName = name;    }     protected ImageDecoder getDecoder() {        InputStream is = null;        try {            JarURLConnection c = (JarURLConnection)url.openConnection();            JarFile f = c.getJarFile();            JarEntry e = c.getJarEntry();             if (entryName != null && e == null) {                e = f.getJarEntry(entryName);            }            if (e == null || (e != null && entryName != null                              && (!(entryName.equals(e.getName()))))) {                return null;            }            is = f.getInputStream(e);        } catch (IOException e) {            return null;        }         ImageDecoder id = decoderForType(is, mimeType);        if (id == null) {            id = getDecoder(is);        }        return id;    }}