When I set to JPDA for Default Debugging and add watch for
japanese variable name, debugger window shows nelow for the
variables on Watches tab.

 > "Name unknown: ????" <.

I'll attach the snapshot.

When I switch to JDK 1.1 debugger implement, this problem
does not happen. Also when class name is ascii, there is
no problem.

The example is very simple, which has only main() method,

public class test {
 public test {
 }
 public static main (String args[]) {
  String var="test";		// add var to watch
  String <japanese>="test";	// add <japanese> to watch
  System.out.println(var);	// set breakpoint here, and see
                                // "Watches" tab 
				// on debugger window
 }
}