see the attached PDF-File

Bottom line: The last statement is apparently not being executed
after the HotSpot optimizer turns it to object code:

public class OutputStreamImpl extends OutputStream {
  ...
  protected int _cursor;
  ...
  public final void write_long(int i, int pos) {
    // save current _cursor position in local variable save_cursor
    int save_cursor = _cursor;

    // set _cursor position to pos and write out i
    _cursor = pos;
    write_long(i);

    // restore original _cursor position
    _cursor = save_cursor; // %%%% THIS STORE "OPTIMIZED" AWAY
  }
  ...
}

The customer has experimented with putting print statements here.
It would be useful to see the set of distinct backtraces leading
to calls to this function, perhaps with Thread.dumpStack().

###@###.### 2002-05-24