diff --git a/saiku-core/saiku-service/src/main/java/mondrian/olap4j/Checker.java b/saiku-core/saiku-service/src/main/java/mondrian/olap4j/Checker.java
new file mode 100644
index 0000000000..974e190284
--- /dev/null
+++ b/saiku-core/saiku-service/src/main/java/mondrian/olap4j/Checker.java
@@ -0,0 +1,28 @@
+/*
+ * Copyright 2014 OSBI Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package mondrian.olap4j;
+
+import org.olap4j.metadata.Level;
+
+/**
+ * Created by bugg on 18/02/15.
+ */
+public class Checker {
+  public boolean checker(Level level){
+    return level instanceof MondrianOlap4jLevel;
+  }
+}
diff --git a/saiku-core/saiku-service/src/main/java/org/saiku/olap/util/ObjectUtil.java b/saiku-core/saiku-service/src/main/java/org/saiku/olap/util/ObjectUtil.java
index 3f485c3b03..ba5b134222 100644
--- a/saiku-core/saiku-service/src/main/java/org/saiku/olap/util/ObjectUtil.java
+++ b/saiku-core/saiku-service/src/main/java/org/saiku/olap/util/ObjectUtil.java
@@ -39,8 +39,8 @@
 import java.util.*;
 
 import mondrian.olap.Annotation;
+import mondrian.olap4j.Checker;
 import mondrian.olap4j.LevelInterface;
-import mondrian.olap4j.MondrianOlap4jLevel;
 
 
 /**
@@ -140,13 +140,14 @@ public static List<SaikuLevel> convertLevels(@NotNull List<Level> levels) {
 
   @NotNull
   private static SaikuLevel convert(@NotNull Level level) {
+    Checker c= new Checker();
     try {
       try {
         Class.forName("mondrian.olap4j.MondrianOlap4jLevelExtend");
         //Class.forName("bi.meteorite.CheckClass");
         Class<LevelInterface> _tempClass =
             (Class<LevelInterface>) Class.forName("mondrian.olap4j.MondrianOlap4jLevelExtend");
-        if(level instanceof MondrianOlap4jLevel) {
+        if(c.checker(level)){
           Constructor<LevelInterface> ctor = _tempClass.getDeclaredConstructor(org.olap4j.metadata.Level.class);
           LevelInterface test = ctor.newInstance(level);
           HashMap<String, String> m = null;