4 files changed, 16 insertions, 13 deletions
diff --git a/mock/jrummikub/util/MockEvent.java b/mock/jrummikub/util/MockEvent.java
index 3d4c56a..169e1e7 100644
--- a/mock/jrummikub/util/MockEvent.java
+++ b/mock/jrummikub/util/MockEvent.java
@@ -1,6 +1,7 @@
 package jrummikub.util;
 
 import java.util.HashSet;
+
 /**
  * Mock class for Events
  */
@@ -11,8 +12,8 @@ public class MockEvent implements IEvent {
 	@Override
 	public Connection add(final IListener listener) {
 		listeners.add(listener);
-	    return new Connection() {
-			
+		return new Connection() {
+
 			@Override
 			public void remove() {
 				MockEvent.this.remove(listener);
@@ -24,10 +25,10 @@ public class MockEvent implements IEvent {
 	public void remove(IListener listener) {
 		listeners.remove(listener);
 	}
-	
+
 	/** */
 	public void emit() {
-		for (IListener listener : listeners) {
+		for (IListener listener : new HashSet<IListener>(listeners)) {
 			listener.handle();
 		}
 	}
diff --git a/mock/jrummikub/util/MockEvent1.java b/mock/jrummikub/util/MockEvent1.java
index 955215c..d8e2824 100644
--- a/mock/jrummikub/util/MockEvent1.java
+++ b/mock/jrummikub/util/MockEvent1.java
@@ -34,7 +34,7 @@ public class MockEvent1<T> implements IEvent1<T> {
 	 *          the event parameter
 	 */
 	public void emit(T value) {
-		for (IListener1<T> listener : listeners) {
+		for (IListener1<T> listener : new HashSet<IListener1<T>>(listeners)) {
 			listener.handle(value);
 		}
 	}
diff --git a/mock/jrummikub/util/MockEvent2.java b/mock/jrummikub/util/MockEvent2.java
index bb4582f..5c25ca4 100644
--- a/mock/jrummikub/util/MockEvent2.java
+++ b/mock/jrummikub/util/MockEvent2.java
@@ -38,7 +38,8 @@ public class MockEvent2<T1, T2> implements IEvent2<T1, T2> {
 	 *          the second event parameter
 	 */
 	public void emit(T1 value1, T2 value2) {
-		for (IListener2<T1, T2> listener : listeners) {
+		for (IListener2<T1, T2> listener : new HashSet<IListener2<T1, T2>>(
+				listeners)) {
 			listener.handle(value1, value2);
 		}
 	}
diff --git a/mock/jrummikub/util/MockEvent3.java b/mock/jrummikub/util/MockEvent3.java
index 62c3ed9..c154ca0 100644
--- a/mock/jrummikub/util/MockEvent3.java
+++ b/mock/jrummikub/util/MockEvent3.java
@@ -6,11 +6,11 @@ import java.util.HashSet;
  * Mock class for Event2s
  * 
  * @param <T1>
- *            first event type
+ *          first event type
  * @param <T2>
- *            second event type
+ *          second event type
  * @param <T3>
- *            third event type
+ *          third event type
  */
 public class MockEvent3<T1, T2, T3> implements IEvent3<T1, T2, T3> {
 	/** */
@@ -35,14 +35,15 @@ public class MockEvent3<T1, T2, T3> implements IEvent3<T1, T2, T3> {
 
 	/**
 	 * @param value1
-	 *            the first event parameter
+	 *          the first event parameter
 	 * @param value2
-	 *            the second event parameter
+	 *          the second event parameter
 	 * @param value3
-	 *            the third event parameter
+	 *          the third event parameter
 	 */
 	public void emit(T1 value1, T2 value2, T3 value3) {
-		for (IListener3<T1, T2, T3> listener : listeners) {
+		for (IListener3<T1, T2, T3> listener : new HashSet<IListener3<T1, T2, T3>>(
+				listeners)) {
 			listener.handle(value1, value2, value3);
 		}
 	}