--- old/core/org.openjdk.jmc.flightrecorder/src/main/java/org/openjdk/jmc/flightrecorder/memleak/ReferenceTreeObject.java	2018-11-27 11:32:07.000000000 +0530
+++ new/core/org.openjdk.jmc.flightrecorder/src/main/java/org/openjdk/jmc/flightrecorder/memleak/ReferenceTreeObject.java	2018-11-27 11:32:06.000000000 +0530
@@ -34,8 +34,11 @@
 
 import java.lang.reflect.Modifier;
 import java.util.ArrayList;
+import java.util.Collections;
+import java.util.HashMap;
 import java.util.HashSet;
 import java.util.List;
+import java.util.Map;
 import java.util.Set;
 
 import org.openjdk.jmc.common.IMCOldObject;
@@ -57,6 +60,7 @@
 
 	private final List<ReferenceTreeObject> children = new ArrayList<>();
 	private final Set<IItem> items = new HashSet<>();
+	private final Map<IQuantity, ReferenceTreeObject> leafNodes = new HashMap<>();
 
 	private String rootDescription;
 	private IMCOldObject object;
@@ -273,12 +277,42 @@
 		this.parent = parent;
 	}
 
+	/**
+	 * @return the Root object
+	 */
+	public ReferenceTreeObject getRootObject() {
+		if (this.parent == null) {
+			return this;
+		} else {
+			ReferenceTreeObject rto = this.parent;
+			while (rto.getParent() != null) {
+				rto = rto.getParent();
+			}
+			return rto;
+		}
+	}
+
 	@Override
 	public int getReferrerSkip() {
 		return object.getReferrerSkip();
 	}
 
 	/**
+	 * @return Map containing allocation time and its leafnode object
+	 */
+	public Map<IQuantity, ReferenceTreeObject> getLeafNodes() {
+		return Collections.unmodifiableMap(leafNodes);
+	}
+
+	/**
+	 * @param leafNode
+	 *            Object which is leaked
+	 */
+	public void updateLeafNode(ReferenceTreeObject leafNode) {
+		leafNodes.put(leafNode.getTimestamp(), leafNode);
+	}
+
+	/**
 	 * Returns a string representation of this object.
 	 *
 	 * @param displayFormatting