[bug-classpath] [Bug classpath/23279] New: java.util.Observable#add doesn't throw NPE when adding a null Observer

[ovidr at users dot sourceforge dot net]

java.util.Observable#add(Observer observer) is supposd to throw an NPE when 
adding a null observer, but it doesn't.

if (observer == null) 
    throw new NullPointerException();

---------

Current code mentions this in the javadoc, but doesn't implement it:

/**
   * Adds an Observer. If the observer was already added this method does
   * nothing.
   *
   * @param observer Observer to add
   * @throws NullPointerException if observer is null
   */
  public synchronized void addObserver(Observer observer)
  {
    observers.add(observer);
  }

-- 
           Summary: java.util.Observable#add  doesn't throw NPE when adding
                    a null Observer
           Product: classpath
           Version: unspecified
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: classpath
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: ovidr at users dot sourceforge dot net
                CC: bug-classpath at gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23279