Enable javadoc checkstyle

and fix violations.

smack-im/src/main/java/org/jivesoftware/smack/chat/ChatMessageListener.java

@@ -19,9 +19,6 @@ package org.jivesoftware.smack.chat;
 
 import org.jivesoftware.smack.packet.Message;
 
-/**
- *
- */
 public interface ChatMessageListener {
     void processMessage(Chat chat, Message message);
 }

smack-im/src/main/java/org/jivesoftware/smack/roster/Roster.java

@@ -323,7 +323,7 @@ public class Roster extends Manager {
     }
 
     /**
-     * Set the roster store, may cause a roster reload
+     * Set the roster store, may cause a roster reload.
      *
      * @param rosterStore
      * @return true if the roster reload was initiated, false otherwise.

smack-im/src/main/java/org/jivesoftware/smack/roster/packet/RosterPacket.java

@@ -311,12 +311,12 @@ public class RosterPacket extends IQ {
      */
     public static enum ItemStatus {
         /**
-         * Request to subscribe
+         * Request to subscribe.
          */
         subscribe,
 
         /**
-         * Request to unsubscribe
+         * Request to unsubscribe.
          */
         unsubscribe;
 

smack-im/src/main/java/org/jivesoftware/smack/roster/rosterstore/DirectoryRosterStore.java

@@ -75,7 +75,7 @@ public class DirectoryRosterStore implements RosterStore {
     }
 
     /**
-     * Creates a new roster store on disk
+     * Creates a new roster store on disk.
      *
      * @param baseDir
      *            The directory to create the store in. The directory should
@@ -94,7 +94,7 @@ public class DirectoryRosterStore implements RosterStore {
     }
 
     /**
-     * Opens a roster store
+     * Opens a roster store.
      * @param baseDir
      *            The directory containing the roster store.
      * @return A {@link DirectoryRosterStore} instance if successful,

smack-im/src/main/java/org/jivesoftware/smack/roster/rosterstore/RosterStore.java

@@ -60,7 +60,7 @@ public interface RosterStore {
      */
     public boolean resetEntries(Collection<RosterPacket.Item> items, String version);
     /**
-     * Removes an entry from the store
+     * Removes an entry from the store.
      * @param bareJid The bare JID of the entry to be removed
      * @param version the new roster version
      * @return True if successful

smack-im/src/test/java/org/jivesoftware/smack/roster/RosterVersioningTest.java

@@ -49,7 +49,7 @@ import org.jxmpp.stringprep.XmppStringprepException;
 
 /**
  * Tests that verify the correct behavior of the {@link Roster} implementation
- * with regard to roster versioning
+ * with regard to roster versioning.
  *
  * @see Roster
  * @see <a href="http://xmpp.org/rfcs/rfc6121.html#roster">Managing the Roster</a>
@@ -172,7 +172,7 @@ public class RosterVersioningTest {
     }
 
     /**
-     * Test roster versioning with roster pushes
+     * Test roster versioning with roster pushes.
      */
     @Test(timeout = 5000)
     public void testRosterVersioningWithCachedRosterAndPushes() throws Throwable {

smack-im/src/test/java/org/jivesoftware/smack/roster/rosterstore/DirectoryRosterStoreTest.java

@@ -79,7 +79,7 @@ public class DirectoryRosterStoreTest {
     }
 
     /**
-     * Tests adding and removing entries
+     * Tests adding and removing entries.
      */
     @Test
     public void testStoreAddRemove() throws IOException {