diff --git a/pcep/pcepio/src/main/java/org/onosproject/pcepio/protocol/ver1/PcepRroObjectVer1.java b/pcep/pcepio/src/main/java/org/onosproject/pcepio/protocol/ver1/PcepRroObjectVer1.java
index d073a02..4aff0db 100644
--- a/pcep/pcepio/src/main/java/org/onosproject/pcepio/protocol/ver1/PcepRroObjectVer1.java
+++ b/pcep/pcepio/src/main/java/org/onosproject/pcepio/protocol/ver1/PcepRroObjectVer1.java
@@ -1,343 +1,343 @@
-/*
- * Copyright 2015 Open Networking Laboratory
- *
- * 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 org.onosproject.pcepio.protocol.ver1;
-
-import java.util.LinkedList;
-import java.util.ListIterator;
-
-import org.jboss.netty.buffer.ChannelBuffer;
-import org.onosproject.pcepio.exceptions.PcepParseException;
-import org.onosproject.pcepio.protocol.PcepRroObject;
-import org.onosproject.pcepio.types.IPv4SubObject;
-import org.onosproject.pcepio.types.IPv6SubObject;
-import org.onosproject.pcepio.types.LabelSubObject;
-import org.onosproject.pcepio.types.PcepObjectHeader;
-import org.onosproject.pcepio.types.PcepValueType;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-import com.google.common.base.MoreObjects;
-
-/**
- * Provides PCEP RRO object.
- */
-public class PcepRroObjectVer1 implements PcepRroObject {
-
-    /*
-     * rfc3209
-          0                   1                   2                   3
-          0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
-         +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-         | Object-Class  |   OT  |Res|P|I|   Object Length (bytes)       |
-         +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-         |                                                               |
-         //                        (Subobjects)                          //
-         |                                                               |
-         +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-
-            Each subobject has its own Length
-            field.  The length contains the total length of the subobject in
-            bytes, including the Type and Length fields.  The length MUST always
-            be a multiple of 4, and at least 4.
-
-            An empty RRO with no subobjects is considered illegal.
-            Three kinds of subobjects are currently defined.
-
-           Subobject 1: IPv4 address
-
-            0                   1                   2                   3
-            0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
-           +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-           |      Type     |     Length    | IPv4 address (4 bytes)        |
-           +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-           | IPv4 address (continued)      | Prefix Length |      Flags    |
-           +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-
-           Subobject 2: IPv6 address
-
-            0                   1                   2                   3
-            0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
-           +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-           |      Type     |     Length    | IPv6 address (16 bytes)       |
-           +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-           | IPv6 address (continued)                                      |
-           +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-           | IPv6 address (continued)                                      |
-           +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-           | IPv6 address (continued)                                      |
-           +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-           | IPv6 address (continued)      | Prefix Length |      Flags    |
-           +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-
-           Subobject 3, Label
-
-            0                   1                   2                   3
-            0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
-           +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-           |     Type      |     Length    |    Flags      |   C-Type      |
-           +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-           |       Contents of Label Object                                |
-           +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-
-     */
-    protected static final Logger log = LoggerFactory.getLogger(PcepRroObjectVer1.class);
-
-    public static final byte RRO_OBJ_TYPE = 1;
-    public static final byte RRO_OBJ_CLASS = 8;
-    public static final byte RRO_OBJECT_VERSION = 1;
-    public static final short RRO_OBJ_MINIMUM_LENGTH = 12;
-    public static final int OBJECT_HEADER_LENGTH = 4;
-    public static final int YTYPE_SHIFT_VALUE = 0x7F;
-
-    static final PcepObjectHeader DEFAULT_RRO_OBJECT_HEADER = new PcepObjectHeader(RRO_OBJ_CLASS, RRO_OBJ_TYPE,
-            PcepObjectHeader.REQ_OBJ_OPTIONAL_PROCESS, PcepObjectHeader.RSP_OBJ_PROCESSED, RRO_OBJ_MINIMUM_LENGTH);
-
-    private short rroObjType = 0;
-    private byte length;
-    private byte prefixLength;
-    private byte resvd;
-    PcepObjectHeader rroObjHeader;
-    private LinkedList<PcepValueType> llSubObjects = new LinkedList<PcepValueType>();
-
-    /**
-     * Reset variables.
-     */
-    public PcepRroObjectVer1() {
-        this.rroObjHeader = null;
-        this.rroObjType = 0;
-        this.length = 0;
-    }
-
-    /**
-     * constructor to initialize parameters for RRO object.
-     *
-     * @param rroObjHeader RRO object header
-     * @param llSubObjects list of sub objects
-     */
-    public PcepRroObjectVer1(PcepObjectHeader rroObjHeader, LinkedList<PcepValueType> llSubObjects) {
-        this.rroObjHeader = rroObjHeader;
-        this.llSubObjects = llSubObjects;
-    }
-
-    /**
-     * Returns PCEP RRO Object Header.
-     *
-     * @return rroObjHeader RRO Object header
-     */
-    public PcepObjectHeader getRroObjHeader() {
-        return this.rroObjHeader;
-    }
-
-    /**
-     * Sets PCEP RRO Object Header.
-     *
-     * @param obj Object header
-     */
-    public void setRroObjHeader(PcepObjectHeader obj) {
-        this.rroObjHeader = obj;
-    }
-
-    @Override
-    public LinkedList<PcepValueType> getSubObjects() {
-        return this.llSubObjects;
-    }
-
-    @Override
-    public void setSubObjects(LinkedList<PcepValueType> llSubObjects) {
-        this.llSubObjects = llSubObjects;
-    }
-
-    /**
-     * Reads the channel buffer and returns object of PcepRroObject.
-     *
-     * @param cb of type channel buffer
-     * @return object of PcepRroObject
-     * @throws PcepParseException when fails to read from channel buffer
-     */
-    public static PcepRroObject read(ChannelBuffer cb) throws PcepParseException {
-
-        PcepObjectHeader rroObjHeader;
-        LinkedList<PcepValueType> llSubObjects;
-        rroObjHeader = PcepObjectHeader.read(cb);
-
-        //take only RroObject buffer.
-        ChannelBuffer tempCb = cb.readBytes(rroObjHeader.getObjLen() - OBJECT_HEADER_LENGTH);
-        llSubObjects = parseSubObjects(tempCb);
-
-        return new PcepRroObjectVer1(rroObjHeader, llSubObjects);
-    }
-
-    /**
-     * Returns list of sub objects.
-     *
-     * @param cb of type channel buffer
-     * @return list of sub objects
-     * @throws PcepParseException when fails to parse list of sub objects
-     */
-    protected static LinkedList<PcepValueType> parseSubObjects(ChannelBuffer cb) throws PcepParseException {
-
-        LinkedList<PcepValueType> llSubObjects = new LinkedList<PcepValueType>();
-
-        while (0 < cb.readableBytes()) {
-
-            //check the Type of the Sub objects
-            byte yType = cb.readByte();
-            yType = (byte) (yType & (YTYPE_SHIFT_VALUE));
-            byte hLength = cb.readByte();
-
-            PcepValueType subObj;
-
-            switch (yType) {
-
-            case IPv4SubObject.TYPE:
-                subObj = IPv4SubObject.read(cb);
-                break;
-            case IPv6SubObject.TYPE:
-                byte[] ipv6Value = new byte[IPv6SubObject.VALUE_LENGTH];
-                cb.readBytes(ipv6Value, 0, IPv6SubObject.VALUE_LENGTH);
-                subObj = new IPv6SubObject(ipv6Value);
-                break;
-            case LabelSubObject.TYPE:
-                subObj = LabelSubObject.read(cb);
-                break;
-            default:
-                throw new PcepParseException(" Unexpected sub object. Type: " + (int) yType);
-            }
-            // Check for the padding
-            int pad = hLength % 4;
-            if (0 < pad) {
-                pad = 4 - pad;
-                if (pad <= cb.readableBytes()) {
-                    cb.skipBytes(pad);
-                }
-            }
-            llSubObjects.add(subObj);
-        }
-
-        return llSubObjects;
-    }
-
-    @Override
-    public int write(ChannelBuffer cb) throws PcepParseException {
-        //write Object header
-        int objStartIndex = cb.writerIndex();
-
-        int objLenIndex = rroObjHeader.write(cb);
-
-        if (objLenIndex <= 0) {
-            throw new PcepParseException(" object Length Index" + objLenIndex);
-        }
-
-        ListIterator<PcepValueType> listIterator = llSubObjects.listIterator();
-
-        while (listIterator.hasNext()) {
-            listIterator.next().write(cb);
-        }
-
-        //Update object length now
-        int length = cb.writerIndex() - objStartIndex;
-        cb.setShort(objLenIndex, (short) length);
-        //will be helpful during print().
-        rroObjHeader.setObjLen((short) length);
-
-        //As per RFC the length of object should be multiples of 4
-        int pad = length % 4;
-
-        if (0 != pad) {
-            pad = 4 - pad;
-            for (int i = 0; i < pad; i++) {
-                cb.writeByte((byte) 0);
-            }
-            length = length + pad;
-        }
-        objLenIndex = cb.writerIndex();
-        return objLenIndex;
-    }
-
-    /**
-     * Builder class for PCEP RRO object.
-     */
-    public static class Builder implements PcepRroObject.Builder {
-        private boolean bIsHeaderSet = false;
-
-        private PcepObjectHeader rroObjHeader;
-        LinkedList<PcepValueType> llSubObjects = new LinkedList<PcepValueType>();
-
-        private boolean bIsPFlagSet = false;
-        private boolean bPFlag;
-
-        private boolean bIsIFlagSet = false;
-        private boolean bIFlag;
-
-        @Override
-        public PcepRroObject build() {
-
-            PcepObjectHeader rroObjHeader = this.bIsHeaderSet ? this.rroObjHeader : DEFAULT_RRO_OBJECT_HEADER;
-
-            if (bIsPFlagSet) {
-                rroObjHeader.setPFlag(bPFlag);
-            }
-
-            if (bIsIFlagSet) {
-                rroObjHeader.setIFlag(bIFlag);
-            }
-            return new PcepRroObjectVer1(rroObjHeader, this.llSubObjects);
-        }
-
-        @Override
-        public PcepObjectHeader getRroObjHeader() {
-            return this.rroObjHeader;
-        }
-
-        @Override
-        public Builder setRroObjHeader(PcepObjectHeader obj) {
-            this.rroObjHeader = obj;
-            this.bIsHeaderSet = true;
-            return this;
-        }
-
-        @Override
-        public LinkedList<PcepValueType> getSubObjects() {
-            return this.llSubObjects;
-        }
-
-        @Override
-        public Builder setSubObjects(LinkedList<PcepValueType> llSubObjects) {
-            this.llSubObjects = llSubObjects;
-            return this;
-        }
-
-        @Override
-        public Builder setPFlag(boolean value) {
-            this.bPFlag = value;
-            this.bIsPFlagSet = true;
-            return this;
-        }
-
-        @Override
-        public Builder setIFlag(boolean value) {
-            this.bIFlag = value;
-            this.bIsIFlagSet = true;
-            return this;
-        }
-    }
-
-    @Override
-    public String toString() {
-        return MoreObjects.toStringHelper(getClass()).add("SubObjects", llSubObjects).toString();
-    }
-}
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * 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 org.onosproject.pcepio.protocol.ver1;
+
+import java.util.LinkedList;
+import java.util.ListIterator;
+
+import org.jboss.netty.buffer.ChannelBuffer;
+import org.onosproject.pcepio.exceptions.PcepParseException;
+import org.onosproject.pcepio.protocol.PcepRroObject;
+import org.onosproject.pcepio.types.IPv4SubObject;
+import org.onosproject.pcepio.types.IPv6SubObject;
+import org.onosproject.pcepio.types.LabelSubObject;
+import org.onosproject.pcepio.types.PcepObjectHeader;
+import org.onosproject.pcepio.types.PcepValueType;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.google.common.base.MoreObjects;
+
+/**
+ * Provides PCEP RRO object.
+ */
+public class PcepRroObjectVer1 implements PcepRroObject {
+
+    /*
+     * rfc3209
+          0                   1                   2                   3
+          0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+         +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+         | Object-Class  |   OT  |Res|P|I|   Object Length (bytes)       |
+         +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+         |                                                               |
+         //                        (Subobjects)                          //
+         |                                                               |
+         +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+
+            Each subobject has its own Length
+            field.  The length contains the total length of the subobject in
+            bytes, including the Type and Length fields.  The length MUST always
+            be a multiple of 4, and at least 4.
+
+            An empty RRO with no subobjects is considered illegal.
+            Three kinds of subobjects are currently defined.
+
+           Subobject 1: IPv4 address
+
+            0                   1                   2                   3
+            0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+           +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+           |      Type     |     Length    | IPv4 address (4 bytes)        |
+           +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+           | IPv4 address (continued)      | Prefix Length |      Flags    |
+           +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+
+           Subobject 2: IPv6 address
+
+            0                   1                   2                   3
+            0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+           +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+           |      Type     |     Length    | IPv6 address (16 bytes)       |
+           +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+           | IPv6 address (continued)                                      |
+           +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+           | IPv6 address (continued)                                      |
+           +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+           | IPv6 address (continued)                                      |
+           +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+           | IPv6 address (continued)      | Prefix Length |      Flags    |
+           +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+
+           Subobject 3, Label
+
+            0                   1                   2                   3
+            0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+           +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+           |     Type      |     Length    |    Flags      |   C-Type      |
+           +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+           |       Contents of Label Object                                |
+           +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+
+     */
+    protected static final Logger log = LoggerFactory.getLogger(PcepRroObjectVer1.class);
+
+    public static final byte RRO_OBJ_TYPE = 1;
+    public static final byte RRO_OBJ_CLASS = 8;
+    public static final byte RRO_OBJECT_VERSION = 1;
+    public static final short RRO_OBJ_MINIMUM_LENGTH = 12;
+    public static final int OBJECT_HEADER_LENGTH = 4;
+    public static final int YTYPE_SHIFT_VALUE = 0x7F;
+
+    static final PcepObjectHeader DEFAULT_RRO_OBJECT_HEADER = new PcepObjectHeader(RRO_OBJ_CLASS, RRO_OBJ_TYPE,
+            PcepObjectHeader.REQ_OBJ_OPTIONAL_PROCESS, PcepObjectHeader.RSP_OBJ_PROCESSED, RRO_OBJ_MINIMUM_LENGTH);
+
+    private short rroObjType = 0;
+    private byte length;
+    private byte prefixLength;
+    private byte resvd;
+    PcepObjectHeader rroObjHeader;
+    private LinkedList<PcepValueType> llSubObjects = new LinkedList<PcepValueType>();
+
+    /**
+     * Reset variables.
+     */
+    public PcepRroObjectVer1() {
+        this.rroObjHeader = null;
+        this.rroObjType = 0;
+        this.length = 0;
+    }
+
+    /**
+     * constructor to initialize parameters for RRO object.
+     *
+     * @param rroObjHeader RRO object header
+     * @param llSubObjects list of sub objects
+     */
+    public PcepRroObjectVer1(PcepObjectHeader rroObjHeader, LinkedList<PcepValueType> llSubObjects) {
+        this.rroObjHeader = rroObjHeader;
+        this.llSubObjects = llSubObjects;
+    }
+
+    /**
+     * Returns PCEP RRO Object Header.
+     *
+     * @return rroObjHeader RRO Object header
+     */
+    public PcepObjectHeader getRroObjHeader() {
+        return this.rroObjHeader;
+    }
+
+    /**
+     * Sets PCEP RRO Object Header.
+     *
+     * @param obj Object header
+     */
+    public void setRroObjHeader(PcepObjectHeader obj) {
+        this.rroObjHeader = obj;
+    }
+
+    @Override
+    public LinkedList<PcepValueType> getSubObjects() {
+        return this.llSubObjects;
+    }
+
+    @Override
+    public void setSubObjects(LinkedList<PcepValueType> llSubObjects) {
+        this.llSubObjects = llSubObjects;
+    }
+
+    /**
+     * Reads the channel buffer and returns object of PcepRroObject.
+     *
+     * @param cb of type channel buffer
+     * @return object of PcepRroObject
+     * @throws PcepParseException when fails to read from channel buffer
+     */
+    public static PcepRroObject read(ChannelBuffer cb) throws PcepParseException {
+
+        PcepObjectHeader rroObjHeader;
+        LinkedList<PcepValueType> llSubObjects;
+        rroObjHeader = PcepObjectHeader.read(cb);
+
+        //take only RroObject buffer.
+        ChannelBuffer tempCb = cb.readBytes(rroObjHeader.getObjLen() - OBJECT_HEADER_LENGTH);
+        llSubObjects = parseSubObjects(tempCb);
+
+        return new PcepRroObjectVer1(rroObjHeader, llSubObjects);
+    }
+
+    /**
+     * Returns list of sub objects.
+     *
+     * @param cb of type channel buffer
+     * @return list of sub objects
+     * @throws PcepParseException when fails to parse list of sub objects
+     */
+    protected static LinkedList<PcepValueType> parseSubObjects(ChannelBuffer cb) throws PcepParseException {
+
+        LinkedList<PcepValueType> llSubObjects = new LinkedList<PcepValueType>();
+
+        while (0 < cb.readableBytes()) {
+
+            //check the Type of the Sub objects
+            byte yType = cb.readByte();
+            yType = (byte) (yType & (YTYPE_SHIFT_VALUE));
+            byte hLength = cb.readByte();
+
+            PcepValueType subObj;
+
+            switch (yType) {
+
+            case IPv4SubObject.TYPE:
+                subObj = IPv4SubObject.read(cb);
+                break;
+            case IPv6SubObject.TYPE:
+                byte[] ipv6Value = new byte[IPv6SubObject.VALUE_LENGTH];
+                cb.readBytes(ipv6Value, 0, IPv6SubObject.VALUE_LENGTH);
+                subObj = new IPv6SubObject(ipv6Value);
+                break;
+            case LabelSubObject.TYPE:
+                subObj = LabelSubObject.read(cb);
+                break;
+            default:
+                throw new PcepParseException(" Unexpected sub object. Type: " + (int) yType);
+            }
+            // Check for the padding
+            int pad = hLength % 4;
+            if (0 < pad) {
+                pad = 4 - pad;
+                if (pad <= cb.readableBytes()) {
+                    cb.skipBytes(pad);
+                }
+            }
+            llSubObjects.add(subObj);
+        }
+
+        return llSubObjects;
+    }
+
+    @Override
+    public int write(ChannelBuffer cb) throws PcepParseException {
+        //write Object header
+        int objStartIndex = cb.writerIndex();
+
+        int objLenIndex = rroObjHeader.write(cb);
+
+        if (objLenIndex <= 0) {
+            throw new PcepParseException(" object Length Index" + objLenIndex);
+        }
+
+        ListIterator<PcepValueType> listIterator = llSubObjects.listIterator();
+
+        while (listIterator.hasNext()) {
+            listIterator.next().write(cb);
+        }
+
+        //Update object length now
+        int length = cb.writerIndex() - objStartIndex;
+        cb.setShort(objLenIndex, (short) length);
+        //will be helpful during print().
+        rroObjHeader.setObjLen((short) length);
+
+        //As per RFC the length of object should be multiples of 4
+        int pad = length % 4;
+
+        if (0 != pad) {
+            pad = 4 - pad;
+            for (int i = 0; i < pad; i++) {
+                cb.writeByte((byte) 0);
+            }
+            length = length + pad;
+        }
+        objLenIndex = cb.writerIndex();
+        return objLenIndex;
+    }
+
+    /**
+     * Builder class for PCEP RRO object.
+     */
+    public static class Builder implements PcepRroObject.Builder {
+        private boolean bIsHeaderSet = false;
+
+        private PcepObjectHeader rroObjHeader;
+        LinkedList<PcepValueType> llSubObjects = new LinkedList<PcepValueType>();
+
+        private boolean bIsPFlagSet = false;
+        private boolean bPFlag;
+
+        private boolean bIsIFlagSet = false;
+        private boolean bIFlag;
+
+        @Override
+        public PcepRroObject build() {
+
+            PcepObjectHeader rroObjHeader = this.bIsHeaderSet ? this.rroObjHeader : DEFAULT_RRO_OBJECT_HEADER;
+
+            if (bIsPFlagSet) {
+                rroObjHeader.setPFlag(bPFlag);
+            }
+
+            if (bIsIFlagSet) {
+                rroObjHeader.setIFlag(bIFlag);
+            }
+            return new PcepRroObjectVer1(rroObjHeader, this.llSubObjects);
+        }
+
+        @Override
+        public PcepObjectHeader getRroObjHeader() {
+            return this.rroObjHeader;
+        }
+
+        @Override
+        public Builder setRroObjHeader(PcepObjectHeader obj) {
+            this.rroObjHeader = obj;
+            this.bIsHeaderSet = true;
+            return this;
+        }
+
+        @Override
+        public LinkedList<PcepValueType> getSubObjects() {
+            return this.llSubObjects;
+        }
+
+        @Override
+        public Builder setSubObjects(LinkedList<PcepValueType> llSubObjects) {
+            this.llSubObjects = llSubObjects;
+            return this;
+        }
+
+        @Override
+        public Builder setPFlag(boolean value) {
+            this.bPFlag = value;
+            this.bIsPFlagSet = true;
+            return this;
+        }
+
+        @Override
+        public Builder setIFlag(boolean value) {
+            this.bIFlag = value;
+            this.bIsIFlagSet = true;
+            return this;
+        }
+    }
+
+    @Override
+    public String toString() {
+        return MoreObjects.toStringHelper(getClass()).add("SubObjects", llSubObjects).toString();
+    }
+}