From e6cf897874172cf563cf7b1f537fdae50042f5ab Mon Sep 17 00:00:00 2001
From: chris <chris@denkblock.mas>
Date: Fri, 2 Sep 2022 15:47:28 +0200
Subject: [PATCH] =?UTF-8?q?Anpassen=20der=20geg.=20L=C3=B6sung=20an=20den?=
 =?UTF-8?q?=20Null-Testfall?=
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---
 SimpleActivityStack/src/solution/SimpleActivityStack.java | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/SimpleActivityStack/src/solution/SimpleActivityStack.java b/SimpleActivityStack/src/solution/SimpleActivityStack.java
index a183c0c..1d2a223 100644
--- a/SimpleActivityStack/src/solution/SimpleActivityStack.java
+++ b/SimpleActivityStack/src/solution/SimpleActivityStack.java
@@ -6,6 +6,9 @@ public class SimpleActivityStack extends SimpleStack<SimpleActivity> {
 
 	@Override
 	public int push(SimpleActivity activity) {
+		if (activity == null) {
+			return 0;
+		}
 		if (size() > 0) {
 			super.get(size() - 1).passivate();
 		}