Fixed Javadoc warnings (#127).

Author: gmessner

src/main/java/org/gitlab4j/api/GitLabApi.java

@@ -1003,8 +1003,9 @@ public UserApi getUserApi() {
     /**
      * Create and return an Optional instance associated with a GitLabApiException.
      *
-     * @param optional the Optional instance to use as the key for the exception
-     * @param glae the GitLabApiException that was the result of a call to the GitLab API 
+     * @param <T> the type for the Optional parameter
+     * @param glae the GitLabApiException that was the result of a call to the GitLab API
+     * @return the created Optional instance
      */
     protected static final <T> Optional<T> createOptionalFromException(GitLabApiException glae) {
         Optional<T> optional = Optional.empty();
@@ -1028,6 +1029,7 @@ public static final GitLabApiException getOptionalException(Optional<?> optional
      * Return the Optional instances contained value, if present, otherwise throw the exception that is
      * associated with the Optional instance.
      *
+     * @param <T> the type for the Optional parameter
      * @param optional the Optional instance to get the value for
      * @return the value of the Optional instance if no exception is associated with it
      * @throws GitLabApiException if there was an exception associated with the Optional instance

src/main/java/org/gitlab4j/api/GroupApi.java

@@ -580,7 +580,7 @@ public Member getMember(int groupId, int userId) throws GitLabApiException {
      * @param userId the member ID of the member to get
      * @return a member viewable by the authenticated user as an Optional instance
      */
-    public Optional<Member> getOptionalMember(int groupId, int userId) throws GitLabApiException {
+    public Optional<Member> getOptionalMember(int groupId, int userId) {
         try {
             return (Optional.ofNullable(getMember(groupId, userId)));
         } catch (GitLabApiException glae) {

src/test/java/org/gitlab4j/api/TestGitLabLogin.java

@@ -88,7 +88,7 @@ public void beforeMethod() {
         assumeTrue(problems != null && problems.isEmpty());
     }
 
-    @SuppressWarnings("deprecation")
+    @SuppressWarnings({ "deprecation" })
     @Test
     public void testSession() throws GitLabApiException {