fix: bug class involving rs usage.

src/engine/db/handlers/dbBuildingHandler.java

@@ -69,10 +69,12 @@ public class dbBuildingHandler extends dbHandlerBase {
 
             ResultSet rs = preparedStatement.executeQuery();
 
+            if (rs.next()) {
                 int objectUUID = (int) rs.getLong("UID");
 
                 if (objectUUID > 0)
                     building = GET_BUILDINGBYUUID(objectUUID);
+            }
 
         } catch (SQLException e) {
             throw new RuntimeException(e);

src/engine/db/handlers/dbGuildHandler.java

@@ -433,11 +433,12 @@ public class dbGuildHandler extends dbHandlerBase {
 
             ResultSet rs = preparedStatement.executeQuery();
 
+            if (rs.next()) {
                 int objectUUID = (int) rs.getLong("UID");
 
                 if (objectUUID > 0)
                     guild = GET_GUILD(objectUUID);
-
+            }
         } catch (SQLException e) {
             Logger.error(e);
         }

src/engine/db/handlers/dbItemHandler.java

@@ -95,11 +95,12 @@ public class dbItemHandler extends dbHandlerBase {
 
             ResultSet rs = preparedStatement.executeQuery();
 
+            if (rs.next()) {
                 int objectUUID = (int) rs.getLong("UID");
 
                 if (objectUUID > 0)
                     return GET_ITEM(objectUUID);
-
+            }
         } catch (SQLException e) {
             Logger.error(e);
         }

src/engine/db/handlers/dbMobHandler.java

@@ -57,11 +57,12 @@ public class dbMobHandler extends dbHandlerBase {
 
             ResultSet rs = preparedStatement.executeQuery();
 
+            if (rs.next()) {
                 int objectUUID = (int) rs.getLong("UID");
 
                 if (objectUUID > 0)
                     mobile = GET_MOB(objectUUID);
-
+            }
         } catch (SQLException e) {
             throw new RuntimeException(e);
         }

src/engine/db/handlers/dbNPCHandler.java

@@ -56,11 +56,12 @@ public class dbNPCHandler extends dbHandlerBase {
 
             ResultSet rs = preparedStatement.executeQuery();
 
+            if (rs.next()) {
                 int objectUUID = (int) rs.getLong("UID");
 
                 if (objectUUID > 0)
                     npc = GET_NPC(objectUUID);
-
+            }
         } catch (SQLException e) {
             throw new RuntimeException(e);
         }

src/engine/db/handlers/dbPlayerCharacterHandler.java

@@ -61,11 +61,13 @@ public class dbPlayerCharacterHandler extends dbHandlerBase {
 
             ResultSet rs = preparedStatement.executeQuery();
 
+            if (rs.next()) {
+
                 int objectUUID = (int) rs.getLong("UID");
 
                 if (objectUUID > 0)
                     playerCharacter = GET_PLAYER_CHARACTER(objectUUID);
-
+            }
         } catch (SQLException e) {
             Logger.error(e);
         }