Name: auR10023			Date: 12/02/2002

Javadoc for java.nio.charset.Charset says:
...
 The empty string is not a legal charset name.
...
So, java.nio.charset.Charset.forName(String)  should throw 
IllegalCharsetNameException with empty string.

Here is the example:

-------test.java---------
import java.nio.charset.*;

public class test {
    public static void main (String [] args) {
        try {
            Charset.forName("");
            System.out.println("IllegalCharsetNameException expected");
            return;
        } catch(IllegalCharsetNameException e) {                                        } catch (UnsupportedCharsetException e) {
            System.out.println("Unexpected " + e);
            return; 
        }       
        System.out.println("OKAY");
    }
}

Here is the result
#java -version

java version "1.4.2-beta"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2-beta-b07)
Java HotSpot(TM) Client VM (build 1.4.2-beta-b07, mixed mode)

#java test

Unexpected java.nio.charset.UnsupportedCharsetException:

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See also  4786886, which reports the same problem for the isSupported() method.

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Name: auR10023 Date: 03/14/2003
 
java.nio.charset.Charset(String canonicalName, String[] aliases) should
throw IllegalCharsetNameException with empty canonicalName.
 
Here is the example:
 
-------test.java---------
 
import java.nio.charset.*;
 
public class test {
    static class TestCharset extends Charset {
        public TestCharset(String canonicalName, String[] aliases) {
            super(canonicalName, aliases);
        }
        public CharsetDecoder newDecoder() {
           return null;
        }
 
        public CharsetEncoder newEncoder() {
           return null;
        }
 
        public boolean contains(Charset cs) {
            return false;
        }
 
    }
 
    public static void main (String [] args) {
        try {
            new TestCharset("", null);
            System.out.println("IllegalCharsetNameException should be thrown");
        } catch (IllegalCharsetNameException e) {
            System.out.println( "OKAY");
        }
    }
}
 
Here is the result
#java -version
 
java version "1.4.2-beta"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2-beta-b16)
Java HotSpot(TM) Client VM (build 1.4.2-beta-b16, mixed mode)
 
#java test
 
IllegalCharsetNameException should be thrown
 
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