diff --git a/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/YangSubModule.java b/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/YangSubModule.java
index 971f512..09e1a4d 100644
--- a/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/YangSubModule.java
+++ b/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/YangSubModule.java
@@ -15,15 +15,15 @@
  */
 package org.onosproject.yangutils.datamodel;
 
-import org.onosproject.yangutils.datamodel.exceptions.DataModelException;
-import static org.onosproject.yangutils.datamodel.utils.DataModelUtils.detectCollidingChildUtil;
-import org.onosproject.yangutils.parser.Parsable;
-import org.onosproject.yangutils.translator.CachedFileHandle;
-import org.onosproject.yangutils.utils.YangConstructType;
-
 import java.util.LinkedList;
 import java.util.List;
 
+import org.onosproject.yangutils.datamodel.exceptions.DataModelException;
+import org.onosproject.yangutils.parser.Parsable;
+import org.onosproject.yangutils.utils.YangConstructType;
+
+import static org.onosproject.yangutils.datamodel.utils.DataModelUtils.detectCollidingChildUtil;
+
 /*
  *  Reference RFC 6020.
  *
@@ -144,11 +144,6 @@
     private byte version;
 
     /**
-     * package of the generated java code.
-     */
-    private String pkg;
-
-    /**
      * Create a sub module node.
      */
     public YangSubModule() {
@@ -468,57 +463,6 @@
         // TODO auto-generated method stub, to be implemented by parser
     }
 
-    /**
-     * Generates java code for sub-module.
-     *
-     * @param codeGenDir code generation directory.
-     */
-    @Override
-    public void generateJavaCodeEntry(String codeGenDir) {
-        // TODO Auto-generated method stub
-    }
-
-    /**
-     * Free resources used to generate code.
-     */
-    @Override
-    public void generateJavaCodeExit() {
-        // TODO Auto-generated method stub
-
-    }
-
-    /**
-     * Get the mapped java package.
-     *
-     * @return the java package
-     */
-    @Override
-    public String getPackage() {
-        return pkg;
-    }
-
-    /**
-     * Set the mapped java package.
-     *
-     * @param pakg the package to set
-     */
-    @Override
-    public void setPackage(String pakg) {
-        pkg = pakg;
-    }
-
-    @Override
-    public CachedFileHandle getFileHandle() {
-        // TODO Auto-generated method stub
-        return null;
-    }
-
-    @Override
-    public void setFileHandle(CachedFileHandle fileHandle) {
-        // TODO Auto-generated method stub
-
-    }
-
     @Override
     public void detectCollidingChild(String identifierName, YangConstructType dataType) throws DataModelException {
         // Asks helper to detect colliding child.