Enable werror for javadoc and fix javadoc issues

smack-openpgp/src/main/java/org/jivesoftware/smackx/ox/OpenPgpContact.java

@@ -77,7 +77,7 @@ public class OpenPgpContact {
     /**
      * Return the jid of the contact.
      *
-     * @return jid
+     * @return jid TODO javadoc me please
      */
     public BareJid getJid() {
         return jid;

smack-openpgp/src/main/java/org/jivesoftware/smackx/ox/OpenPgpManager.java

@@ -228,7 +228,7 @@ public final class OpenPgpManager extends Manager {
     /**
      * Get our OpenPGP self.
      *
-     * @return self
+     * @return self TODO javadoc me please
      * @throws SmackException.NotLoggedInException if we are not logged in
      */
     public OpenPgpSelf getOpenPgpSelf() throws SmackException.NotLoggedInException {

smack-openpgp/src/main/java/org/jivesoftware/smackx/ox/OpenPgpMessage.java

@@ -148,7 +148,7 @@ public class OpenPgpMessage {
     /**
      * Return metadata about the encrypted message.
      *
-     * @return metadata
+     * @return metadata TODO javadoc me please
      */
     public OpenPgpMetadata getMetadata() {
         return metadata;

smack-openpgp/src/main/java/org/jivesoftware/smackx/ox/crypto/OpenPgpElementAndMetadata.java

@@ -42,7 +42,7 @@ public class OpenPgpElementAndMetadata {
     /**
      * Return the {@link OpenPgpElement}.
      *
-     * @return element
+     * @return element TODO javadoc me please
      */
     public OpenPgpElement getElement() {
         return element;
@@ -51,7 +51,7 @@ public class OpenPgpElementAndMetadata {
     /**
      * Return {@link OpenPgpMetadata} about the {@link OpenPgpElement}s encryption/signatures.
      *
-     * @return metadata
+     * @return metadata TODO javadoc me please
      */
     public OpenPgpMetadata getMetadata() {
         return metadata;

smack-openpgp/src/main/java/org/jivesoftware/smackx/ox/crypto/OpenPgpProvider.java

@@ -38,7 +38,7 @@ public interface OpenPgpProvider {
      * Return the {@link OpenPgpStore} instance of this provider.
      * This MUST NOT return null.
      *
-     * @return store
+     * @return store TODO javadoc me please
      */
     OpenPgpStore getStore();
 

smack-openpgp/src/main/java/org/jivesoftware/smackx/ox/util/OpenPgpPubSubUtil.java

@@ -295,7 +295,7 @@ public class OpenPgpPubSubUtil {
      *
      * @param pm PubSubManager
      * @param nodeName name of the node
-     * @return node
+     * @return node TODO javadoc me please
      *
      * @throws XMPPException.XMPPErrorException in case of an XMPP protocol error.
      * @throws PubSubException.NotALeafNodeException if the queried node is not a {@link LeafNode}.
@@ -417,7 +417,7 @@ public class OpenPgpPubSubUtil {
      *
      * @param pubSubManager pubsub manager
      * @param nodeName name of the node
-     * @return leafNode
+     * @return leafNode TODO javadoc me please
      *
      * @throws PubSubException.NotALeafNodeException in case we already have the node cached, but it is not a LeafNode.
      */

smack-openpgp/src/main/java/org/jivesoftware/smackx/ox/util/SecretKeyBackupHelper.java

@@ -118,7 +118,7 @@ public class SecretKeyBackupHelper {
      *
      * @param backup encrypted {@link SecretkeyElement} containing the backup
      * @param backupCode passphrase for decrypting the {@link SecretkeyElement}.
-     * @return the
+     * @return the TODO javadoc me please
      * @throws InvalidBackupCodeException in case the provided backup code is invalid.
      * @throws IOException IO is dangerous.
      * @throws PGPException PGP is brittle.