36 

    36 

    37 

    37 

    38 /**

    38 /**

    39  * Implementation of Messager.

    39  * Implementation of Messager.

    40  */

    40  */

    42 public class MessagerImpl implements Messager {

    42 public class MessagerImpl implements Messager {

    43     private final Bark bark;

    43     private final Bark bark;

    44 

    44 

    45     private static final Context.Key<MessagerImpl> messagerKey =

    45     private static final Context.Key<MessagerImpl> messagerKey =

    46             new Context.Key<MessagerImpl>();

    46             new Context.Key<MessagerImpl>();