/*
* Copyright ( c ) 2001 , 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 4420318 8183341
* @ summary Checks that an IllegalStateException is thrown by getNumImages ( true )
* when seekForwardOnly is true
* @ modules java . desktop / com . sun . imageio . plugins . gif
* java . desktop / com . sun . imageio . plugins . jpeg
* java . desktop / com . sun . imageio . plugins . png
*/
import java.io.File;
import java.io.IOException;
import java.nio.file.Files;
import javax.imageio.ImageIO;
import javax.imageio.ImageReader;
import javax.imageio.stream.ImageInputStream;
import com.sun.imageio.plugins.gif.GIFImageReader;
import com.sun.imageio.plugins.jpeg.JPEGImageReader;
import com.sun.imageio.plugins.png.PNGImageReader;
public class AllowSearch {
private static void test(ImageReader reader, String format)
throws IOException {
boolean gotISE = false ;
File f = null ;
ImageInputStream stream = null ;
try {
f = File.createTempFile("imageio" , ".tmp" );
stream = ImageIO.createImageInputStream(f);
reader.setInput(stream, true );
try {
int numImages = reader.getNumImages(true );
} catch (IOException ioe) {
gotISE = false ;
} catch (IllegalStateException ise) {
gotISE = true ;
}
} finally {
if (stream != null ) {
stream.close();
}
reader.dispose();
if (f != null ) {
Files.delete (f.toPath());
}
}
if (!gotISE) {
throw new RuntimeException("Failed to get desired exception for " +
format + " reader!" );
}
}
public static void main(String[] args) throws IOException {
ImageReader gifReader = new GIFImageReader(null );
ImageReader jpegReader = new JPEGImageReader(null );
ImageReader pngReader = new PNGImageReader(null );
test(gifReader, "GIF" );
test(jpegReader, "JPEG" );
test(pngReader, "PNG" );
}
}
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¤ Dauer der Verarbeitung: 0.8 Sekunden
(vorverarbeitet am 2026-06-10)
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