Fix JavaDoc syntax errors. Add check to circle build. (#791)

* Fix JavaDoc syntax errors. Add check to circle build.

* One more code error

* Added missing tags.

hawkbit-security-integration/src/main/java/org/eclipse/hawkbit/security/PreAuthenticationFilter.java

@@ -22,17 +22,15 @@ public interface PreAuthenticationFilter {
     /**
      * Check if the filter is enabled.
      *
-     * @param secruityToken
-     *            the secruity info
-     * @return <true> is enabled <false> diabled
+     * @param secruityToken the secruity info
+     * @return <code>true</code> is enabled <code>false</code> diabled
      */
     boolean isEnable(DmfTenantSecurityToken secruityToken);
 
     /**
      * Extract the principal information from the current secruityToken.
      *
-     * @param secruityToken
-     *            the secruityToken
+     * @param secruityToken the secruityToken
      * @return the extracted tenant and controller id
      */
     HeaderAuthentication getPreAuthenticatedPrincipal(DmfTenantSecurityToken secruityToken);
@@ -40,18 +38,16 @@ public interface PreAuthenticationFilter {
     /**
      * Extract the principal credentials from the current secruityToken.
      *
-     * @param secruityToken
-     *            the secruityToken
+     * @param secruityToken the secruityToken
      * @return the extracted tenant and controller id
      */
     Object getPreAuthenticatedCredentials(DmfTenantSecurityToken secruityToken);
 
     /**
-     * Allows to add additional authorities to the successful authenticated
-     * token.
+     * Allows to add additional authorities to the successful authenticated token.
      *
-     * @return the authorities granted to the principal, or an empty collection
-     *         if the token has not been authenticated. Never null.
+     * @return the authorities granted to the principal, or an empty collection if
+     *         the token has not been authenticated. Never null.
      * @see Authentication#getAuthorities()
      */
     default Collection<GrantedAuthority> getSuccessfulAuthenticationAuthorities() {