URLEncoder.encode(String) works wrong when external encoding is set

Name: dfC67450 Date: 02/28/2000



java.net.URLEncoder.encode(String) works wrong when external encoding is set

Javadoc states:

   To convert a String, each character is examined in turn:
   The ASCII characters 'a' through 'z', 'A' through 'Z',
   '0' through '9', and ".", "-", "*", "_" remain the same.
   
   The space character ' ' is converted into a plus sign '+'.
   All other characters are converted into the 3-character string
   "%xy", where xy is the two-digit hexadecimal representation of
   the lower 8-bits of the character.

In the reference implementation string argument is converted to the external
encoding before hex conversion. This feature is undocumented.

Here is the test demonstrating the bug:

---------------------------------------------
import java.net.*;

public class Test {

    public static void main (String args[]){

        String s = "\u00AA";
        String encoded = URLEncoder.encode(s);
        System.out.println("encoded : " + encoded);
        System.out.println("expected : %AA");
        if ("%AA".equals(encoded))
            System.out.println("Test passed");
        else
            System.out.println("Test failed");
        
            
    }
}
------------- output ---------
#>java Test
encoded : %AA
expected : %AA
Test passed

#> java -Dfile.encoding=koi8-r Test
encoded : %3F
expected : %AA
Test failed

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