&& equals(className, e.className)
&& equals(declaringClass, e.declaringClass)
  public boolean equals(Object o)  {    if (! (o instanceof StackTraceElement))      return false;    StackTraceElement e = (StackTraceElement) o;    return equals(fileName, e.fileName)      && lineNumber == e.lineNumber      && equals(className, e.className)      && equals(methodName, e.methodName);  }