Name: ipR10067 Date: 05/29/2001



The descriptions of static methods
getImageReadersByFormatName, getImageReadersByMIMEType, getImageReadersBySuffix,
getImageWritersByFormatName, getImageWritersByMIMEType, getImageWritersBySuffix
of javax.imageio.ImageIO read that IllegalArgumentException will be thrown
if parameter is null.

But they do not throw IllegalArgumentException as expected:
---------------------------- source --------------------------------
import javax.imageio.ImageIO;
import java.util.Iterator;

public class Tests {

    public static void main(String argv[]) {

        System.out.println("--- getImageReadersByFormatName ---");
        try {
            Iterator readers = ImageIO.getImageReadersByFormatName(null);
        } catch (IllegalArgumentException iae) {
            System.out.println("Expected " + iae.toString());
        }

        System.out.println("--- getImageReadersByMIMEType ---");
        try {
            Iterator readers = ImageIO.getImageReadersByMIMEType(null);
        } catch (IllegalArgumentException iae) {
            System.out.println("Expected " + iae.toString());
        }
        
        System.out.println("--- getImageReadersBySuffix ---");
        try {
            Iterator readers = ImageIO.getImageReadersBySuffix(null);
        } catch (IllegalArgumentException iae) {
            System.out.println("Expected " + iae.toString());
        }

        System.out.println("--- getImageWritersByFormatName ---");
        try {
            Iterator writers = ImageIO.getImageWritersByFormatName(null);
        } catch (IllegalArgumentException iae) {
            System.out.println("Expected " + iae.toString());
        }

        System.out.println("--- getImageWritersByMIMEType ---");
        try {
            Iterator writers = ImageIO.getImageWritersByMIMEType(null);
        } catch (IllegalArgumentException iae) {
            System.out.println("Expected " + iae.toString());
        }

        System.out.println("--- getImageWritersBySuffix ---");
        try {
            Iterator writers = ImageIO.getImageWritersBySuffix(null);
        } catch (IllegalArgumentException iae) {
            System.out.println("Expected " + iae.toString());
        }

    }

}

---------------------------- log --------------------------------
>java -version
java version "1.4.0-beta"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.0-beta-b65)
Java HotSpot(TM) Client VM (build 1.4.0-beta-b65, mixed mode)
>java Tests
--- getImageReadersByFormatName ---
--- getImageReadersByMIMEType ---
--- getImageReadersBySuffix ---
--- getImageWritersByFormatName ---
--- getImageWritersByMIMEType ---
--- getImageWritersBySuffix ---



This bug affects new API tests
 tests/api/javax_imageio/ImageIO/index.html#getImageReadersByFormatName
 tests/api/javax_imageio/ImageIO/index.html#getImageReadersByMIMEType
 tests/api/javax_imageio/ImageIO/index.html#getImageReadersBySuffix
 tests/api/javax_imageio/ImageIO/index.html#getImageWritersByFormatName
 tests/api/javax_imageio/ImageIO/index.html#getImageWritersByMIMEType
 tests/api/javax_imageio/ImageIO/index.html#getImageWritersBySuffix


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