fix code style issues

app/src/main/java/chat/rocket/android/fragment/chatroom/AbstractChatRoomFragment.java

@@ -12,7 +12,8 @@ import chat.rocket.android.fragment.AbstractFragment;
 abstract class AbstractChatRoomFragment extends AbstractFragment {
   protected Toolbar activityToolbar;
 
-  @Nullable @Override
+  @Nullable
+  @Override
   public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container,
       @Nullable Bundle savedInstanceState) {
     activityToolbar = (Toolbar) getActivity().findViewById(R.id.activity_main_toolbar);

app/src/main/java/chat/rocket/android/fragment/server_config/AbstractServerConfigFragment.java

@@ -9,7 +9,7 @@ import chat.rocket.android.helper.OnBackPressListener;
 import chat.rocket.android.helper.TextUtils;
 
 abstract class AbstractServerConfigFragment extends AbstractFragment
-  implements OnBackPressListener {
+    implements OnBackPressListener {
   protected String serverConfigId;
 
   @Override public void onCreate(@Nullable Bundle savedInstanceState) {

app/src/main/java/chat/rocket/android/model/Room.java

@@ -6,7 +6,7 @@ import io.realm.annotations.PrimaryKey;
 /**
  * Chat Room.
  */
-@SuppressWarnings("PMD.ShortVariable")
+@SuppressWarnings({"PMD.ShortClassName", "PMD.ShortVariable", "PMD.VariableNamingConventions"})
 public class Room extends RealmObject {
   @PrimaryKey private String _id;
   private String serverConfigId;

app/src/main/java/chat/rocket/android/model/User.java

@@ -6,7 +6,7 @@ import io.realm.annotations.PrimaryKey;
 /**
  * User.
  */
-@SuppressWarnings("PMD.ShortVariable")
+@SuppressWarnings({"PMD.ShortClassName", "PMD.ShortVariable", "PMD.VariableNamingConventions"})
 public class User extends RealmObject {
   @PrimaryKey private String _id;
   private String username;

app/src/main/java/chat/rocket/android/service/observer/SessionObserver.java

@@ -15,6 +15,7 @@ import java.util.List;
  */
 public class SessionObserver extends AbstractModelObserver<ServerConfig> {
   private int count;
+
   public SessionObserver(Context context, String serverConfigId, RocketChatWebSocketAPI api) {
     super(context, serverConfigId, api);
     count = 0;

app/src/main/java/chat/rocket/android/service/observer/TokenLoginObserver.java

@@ -23,7 +23,9 @@ public class TokenLoginObserver extends AbstractModelObserver<ServerConfig> {
   }
 
   @Override protected void onCollectionChanged(List<ServerConfig> list) {
-    if (list.isEmpty()) return;
+    if (list.isEmpty()) {
+      return;
+    }
 
     ServerConfig config = list.get(0);
     new MethodCallHelper(serverConfigId, webSocketAPI).loginWithToken(config.getToken())

config/quality/checkstyle/checkstyle-suppressions.xml

@@ -4,5 +4,5 @@
   "http://www.puppycrawl.com/dtds/suppressions_1_1.dtd">
 <suppressions>
   <!-- suppress some checks for classes extending RealmObject -->
-  <suppress checks="JavadocMethod" files="chat[\\/]rocket[\\/]android[\\/]model"/>
+  <suppress checks="JavadocMethod|MemberName" files="chat[\\/]rocket[\\/]android[\\/]model"/>
 </suppressions>
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