Environment:

J:\borsotti\lbj>java -version
java version "1.4.0-beta"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.0-beta-b48)
Java HotSpot(TM) Client VM (build B48, mixed mode)

Consider the following:

import java.util.*;
import java.text.*;
public class Col {
    public static void main(String[] args){
        String[] arr = new String[] {
            "peach","p\u00E9ch\u00E9","p\u00EAche"};
        Arrays.sort(arr,Collator.getInstance(Locale.US));
        for (int i = 0; i < arr.length; i++){
            System.out.println(arr[i]);
        }
    }
}

(this is made after an example in the Tutorial, Internationalization,
Working on Text, etc.)

When running the program, the following is printed:

J:\jtest>java Col
peach
pOche
pTchT

The strings are sorted in the wrong order according to the US
locale. I.e. the second and third are swapped.

This program behaved correctly in JDK 1.2.