diff --git a/u07-2/SimpleExecutorCompletionService_with_take.java b/u07-2/SimpleExecutorCompletionService_with_take.java
index b355c13..4486e87 100644
--- a/u07-2/SimpleExecutorCompletionService_with_take.java
+++ b/u07-2/SimpleExecutorCompletionService_with_take.java
@@ -47,18 +47,14 @@ public class SimpleExecutorCompletionService_with_take<ResultType> {
 		}
 	}
 
-	synchronized public Future<ResultType> take() {
+	synchronized public Future<ResultType> take() throws InterruptedException {
 		// update list first to check if tasks are already completed
 		this.updateFuturesLists();
 
 		// wait until a task finishes, if there aren't any currently done
 		while (this.doneFutures.isEmpty()) {
-			try {
-				wait();
-			} catch (InterruptedException e) {
-				e.printStackTrace();
-			}
-
+			wait();
+			
 			// update list again, after being notified, since callable wrapper can't update list
 			// this SHOULD always result in at least one future being added to the done list
 			this.updateFuturesLists();