Misc checkstyle fixes

By: md_5 <git@md-5.net>

paper-server/src/main/java/org/bukkit/craftbukkit/map/CraftMapCanvas.java

@@ -98,8 +98,8 @@ public class CraftMapCanvas implements MapCanvas {
                         color = Byte.parseByte(text.substring(i + 1, j));
                         i = j;
                         continue;
+                    } catch (NumberFormatException ex) {
                     }
-                    catch (NumberFormatException ex) {}
                 }
                 throw new IllegalArgumentException("Text contains unterminated color string");
             }

paper-server/src/main/java/org/bukkit/craftbukkit/map/CraftMapView.java

@@ -35,8 +35,7 @@ public final class CraftMapView implements MapView {
         if (text.startsWith("map_")) {
             try {
                 return Integer.parseInt(text.substring("map_".length()));
-            }
-            catch (NumberFormatException ex) {
+            } catch (NumberFormatException ex) {
                 throw new IllegalStateException("Map has non-numeric ID");
             }
         } else {