@@ -0,0 +1,616 @@
+package it.polimi.greenhouse.a3.events;%0A%0A/**%0A * TODO%0A */%0Apublic class TestEvent %7B%0A%0A    public final String groupName;%0A    public final int eventType;%0A    public final Object object;%0A%0A    public TestEvent(int eventType, String groupName)%7B%0A        this.groupName = groupName;%0A        this.eventType = eventType;%0A        this.object = null;%0A    %7D%0A%0A    public TestEvent(int eventType, String groupName, Object object)%7B%0A        this.groupName = groupName;%0A        this.eventType = eventType;%0A        this.object = object;%0A    %7D%0A%0A    public String toString()%7B%0A        return this.groupName + %22_%22 + this.eventType;%0A    %7D%0A%7D%0A

Add the TestEvent missing class