/*
* Copyright ( c ) 2007 , 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 6438508
* @ summary Test verifies that ImageIO . write ( ) does not create new
* empty file if requested image format is not supported .
*
* @ run main EmptyFileTest
*/
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
public class EmptyFileTest {
public static void main(String[] args) throws IOException {
String format = "MY_IMG" ;
File out = new File("output.myimg" );
System.out.printf("File %s: %s\n" , out.getAbsolutePath(),
out.exists() ? "EXISTS" : "NEW" );
BufferedImage img = createTestImage();
boolean status = false ;
try {
status = ImageIO.write(img, format, out);
} catch (IOException e) {
throw new RuntimeException("Test FAILED: unexpected exception" , e);
}
if (status) {
throw new RuntimeException("Test FAILED: Format " +
format + " is supported." );
}
if (out.exists()) {
throw new RuntimeException("Test FAILED." );
}
System.out.println("Test PASSED." );
}
private static BufferedImage createTestImage() {
return new BufferedImage(100 , 100 , BufferedImage.TYPE_INT_RGB);
}
}
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¤ Dauer der Verarbeitung: 0.12 Sekunden
(vorverarbeitet am 2026-06-10)
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