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 | public class PR12350
{
    static public void main (String[] ignored) throws Throwable
    {
	StringBuffer b = new StringBuffer ("Good string.  More than 16 chars.");
	// Should cause sharing.
	String s = b.toString();
	// Take a char by char unshared copy of s.
	String t = new String (s.toCharArray());
	b.substring (0, 4);	// BUG: Clears shared flag.
	b.replace (0, 4, "Bad "); // Modifies shared data.
	System.out.println (s);
	assert s.equals (t);
    }
}
 |