... Actually push the OfflinePlayer interface!

src/main/java/org/bukkit/OfflinePlayer.java

@@ -0,0 +1,19 @@
+package org.bukkit;
+
+import org.bukkit.permissions.ServerOperator;
+
+public interface OfflinePlayer extends ServerOperator {
+    /**
+     * Checks if this player is currently online
+     *
+     * @return true if they are online
+     */
+    public boolean isOnline();
+
+    /**
+     * Returns the name of this player
+     *
+     * @return Player name
+     */
+    public String getName();
+}