Fixed test failures, 3 bugs:

- RawDataContainer using getUnsafe in getValue which threw error where
  no error should be thrown
- BaseUserQueries#fetchServerBaseUsers had ambiguous registered column
- WorldTimesQueries#fetchPlayerWorldTimesOnServers had ambiguous
  server_uuid column

Plan/common/src/main/java/com/djrapitops/plan/data/store/Key.java

@@ -81,4 +81,17 @@ public class Key<T> {
     public int hashCode() {
         return Objects.hash(type, keyName);
     }
+
+    /**
+     * Cast an object to the type of the key.
+     *
+     * @param object Object to cast.
+     * @return The object with the type of T.
+     */
+    public T typeCast(Object object) {
+        // Since Type can have a List<Subtype>, Class can not be obtained in order to use Class while casting.
+        // This could be done since Google Gson does it, but I don't know how they do it since
+        // the implementation is hidden.
+        return (T) object;
+    }
 }

Plan/common/src/main/java/com/djrapitops/plan/data/store/containers/RawDataContainer.java

@@ -68,7 +68,7 @@ public class RawDataContainer implements DataContainer {
     @Override
     public <T> Optional<T> getValue(Key<T> key) {
         try {
-            return Optional.ofNullable(getUnsafe(key));
+            return Optional.ofNullable(key.typeCast(map.get(key)));
         } catch (ClassCastException e) {
             return Optional.empty();
         }
@@ -80,7 +80,7 @@ public class RawDataContainer implements DataContainer {
         if (value == null) {
             throw new IllegalArgumentException("Unsupported Key: " + key.getKeyName());
         }
-        return (T) value;
+        return key.typeCast(value);
     }
 
     @Override

Plan/common/src/main/java/com/djrapitops/plan/data/store/containers/SupplierDataContainer.java

@@ -104,7 +104,7 @@ public class SupplierDataContainer implements DataContainer {
         if (supplier == null) {
             throw new IllegalArgumentException("Unsupported Key: " + key.getKeyName());
         }
-        return (T) supplier.get();
+        return key.typeCast(supplier.get());
     }
 
     private void putAll(Map<Key, Supplier> toPut) {

Plan/common/src/main/java/com/djrapitops/plan/db/access/queries/objects/BaseUserQueries.java

@@ -71,7 +71,7 @@ public class BaseUserQueries {
         String sql = "SELECT " +
                 UsersTable.TABLE_NAME + "." + UsersTable.USER_UUID + ", " +
                 UsersTable.USER_NAME + ", " +
-                UsersTable.REGISTERED + ", " +
+                UsersTable.TABLE_NAME + "." + UsersTable.REGISTERED + ", " +
                 UsersTable.TIMES_KICKED +
                 " FROM " + UsersTable.TABLE_NAME +
                 " INNER JOIN " + UserInfoTable.TABLE_NAME + " on " +

Plan/common/src/main/java/com/djrapitops/plan/db/access/queries/objects/WorldTimesQueries.java

@@ -151,11 +151,12 @@ public class WorldTimesQueries {
                 "SUM(" + WorldTimesTable.CREATIVE + ") as creative, " +
                 "SUM(" + WorldTimesTable.ADVENTURE + ") as adventure, " +
                 "SUM(" + WorldTimesTable.SPECTATOR + ") as spectator, " +
+                WorldTimesTable.TABLE_NAME + "." + WorldTimesTable.SERVER_UUID + ", " +
                 worldNameColumn +
                 " FROM " + WorldTimesTable.TABLE_NAME +
                 " INNER JOIN " + WorldTable.TABLE_NAME + " on " + worldIDColumn + "=" + WorldTimesTable.WORLD_ID +
                 " WHERE " + WorldTimesTable.TABLE_NAME + "." + WorldTimesTable.USER_UUID + "=?" +
-                " GROUP BY world, " + WorldTimesTable.SERVER_UUID;
+                " GROUP BY world, " + WorldTimesTable.TABLE_NAME + "." + WorldTimesTable.SERVER_UUID;
 
         return new QueryStatement<Map<UUID, WorldTimes>>(sql, 1000) {
             @Override