add crash button

main.qml

 import QtQuick 2.12
+import QtQuick.Controls 2.12
+import QtQuick.Layouts 1.12
 import QtQuick.Window 2.12
 
 Window {
@@ -6,4 +8,25 @@ Window {
     height: 480
     visible: true
     title: qsTr("Hello World")
+
+    ColumnLayout {
+        anchors.fill: parent
+
+        Button {
+            id: button
+            text: "Greeting to crash"
+            onClicked: {
+                serviceObject.greeting();
+            }
+        }
+    }
+
+    Timer {
+        running: true
+        interval: 5000
+        onTriggered: {
+            console.log("triggered");
+            button.destroy();
+        }
+    }
 }