Move BaseReceivePack#db getter to ReceivePack

Another step toward eliminating BaseReceivePack as a separate API.

Change-Id: If7b7d5c65a043607a2424211adb479fa33a9077b
Signed-off-by: Jonathan Nieder <jrn@google.com>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>

org.eclipse.jgit/.settings/.api_filters

                 <message_argument value="getPushCertificate()"/>
             </message_arguments>
         </filter>
+        <filter id="421650549">
+            <message_arguments>
+                <message_argument value="org.eclipse.jgit.transport.BaseReceivePack"/>
+                <message_argument value="getRepository()"/>
+            </message_arguments>
+        </filter>
         <filter id="421650549">
             <message_arguments>
                 <message_argument value="org.eclipse.jgit.transport.BaseReceivePack"/>

org.eclipse.jgit/src/org/eclipse/jgit/transport/BaseReceivePack.java

 	}
 
 	/** Database we write the stored objects into. */
-	private final Repository db;
+	final Repository db;
 
 	/** Revision traversal support over {@link #db}. */
 	private final RevWalk walk;
 	 * Get the repository this receive completes into.
 	 *
 	 * @return the repository this receive completes into.
+	 * @deprecated use {@link ReceivePack#getRepository}
 	 */
-	public final Repository getRepository() {
-		return db;
-	}
+	@Deprecated
+	public abstract Repository getRepository();
 
 	/**
 	 * Get the RevWalk instance used by this connection.

org.eclipse.jgit/src/org/eclipse/jgit/transport/ReceivePack.java

 		postReceive = PostReceiveHook.NULL;
 	}
 
+	/**
+	 * Get the repository this receive completes into.
+	 *
+	 * @return the repository this receive completes into.
+	 */
+	@Override
+	public final Repository getRepository() {
+		return db;
+	}
+
 	/**
 	 * Get the push certificate used to verify the pusher's identity.
 	 * <p>