diff --git a/src/main/java/ubu/gii/dass/c01/ReusablePool.java b/src/main/java/ubu/gii/dass/c01/ReusablePool.java
index ee5175ce..97371c16 100644
--- a/src/main/java/ubu/gii/dass/c01/ReusablePool.java
+++ b/src/main/java/ubu/gii/dass/c01/ReusablePool.java
@@ -7,7 +7,7 @@
  * @author Carlos López clopezno@ubu.es
  */
 
-public final class ReusablePool{
+public final class ReusablePool implements AutoCloseable{
 
 	private Vector<Reusable> reusables;
 	private static ReusablePool instance;
@@ -59,5 +59,11 @@ public void releaseReusable(Reusable r) throws DuplicatedInstanceException {
 		else{
 			throw(new DuplicatedInstanceException());
 		}
+	}	
+	
+	@Override
+	public void close() {
+		instance = null;
 	}
-} 
\ No newline at end of file
+	
+}