diff --git a/src/main/java/kieker/diagnosis/subview/aggregatedtraces/View.java b/src/main/java/kieker/diagnosis/subview/aggregatedtraces/View.java
index f7bd0430e06a824af6635b249dbb35a0a1865d7d..e1d673b90bc60d53d78ca52319b4add8ef4b75e2 100644
--- a/src/main/java/kieker/diagnosis/subview/aggregatedtraces/View.java
+++ b/src/main/java/kieker/diagnosis/subview/aggregatedtraces/View.java
@@ -385,7 +385,8 @@ public final class View implements Observer, ISubView {
 			final String totalDuration = (operationCall.getTotalDuration() + " " + View.this.model.getShortTimeUnit()).trim();
 
 			if (parent != null) {
-				item.setText(new String[] { operationCall.getContainer(), componentName, operationString, "", minDuration, avgDuration, meanDuration, maxDuration, totalDuration, });
+				item.setText(new String[] { operationCall.getContainer(), componentName, operationString, "", minDuration, avgDuration, meanDuration, maxDuration,
+					totalDuration, });
 			} else {
 				item.setText(new String[] { operationCall.getContainer(), componentName, operationString, Integer.toString(operationCall.getCalls()), minDuration, avgDuration,
 					meanDuration, maxDuration, totalDuration, });
diff --git a/src/main/java/kieker/diagnosis/subview/traces/util/DurationSortListener.java b/src/main/java/kieker/diagnosis/subview/traces/util/DurationSortListener.java
index 7c72e830dc91bd2e66d609cddb203212feb28529..a78ace92fc7f5a96098250433391c68f0979adac 100644
--- a/src/main/java/kieker/diagnosis/subview/traces/util/DurationSortListener.java
+++ b/src/main/java/kieker/diagnosis/subview/traces/util/DurationSortListener.java
@@ -1,3 +1,19 @@
+/***************************************************************************
+ * Copyright 2014 Kieker Project (http://kieker-monitoring.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ ***************************************************************************/
+
 package kieker.diagnosis.subview.traces.util;
 
 import kieker.diagnosis.common.domain.Trace;
diff --git a/src/main/java/kieker/diagnosis/subview/traces/util/TraceIDSortListener.java b/src/main/java/kieker/diagnosis/subview/traces/util/TraceIDSortListener.java
index 74bda588031f87c0bb5beef2e612e0c4f323704e..e7fa9349828531c544e6a87338e6a5c6ee585420 100644
--- a/src/main/java/kieker/diagnosis/subview/traces/util/TraceIDSortListener.java
+++ b/src/main/java/kieker/diagnosis/subview/traces/util/TraceIDSortListener.java
@@ -1,3 +1,19 @@
+/***************************************************************************
+ * Copyright 2014 Kieker Project (http://kieker-monitoring.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ ***************************************************************************/
+
 package kieker.diagnosis.subview.traces.util;
 
 import kieker.diagnosis.common.domain.Trace;
diff --git a/src/main/java/kieker/diagnosis/subview/util/AbstractDataModelProxy.java b/src/main/java/kieker/diagnosis/subview/util/AbstractDataModelProxy.java
index c36f85b85feb4e94f7e0278b969b3a00567f9d40..ae1778ff2a7d2ca51584c2cacb80deebe78cc8f2 100644
--- a/src/main/java/kieker/diagnosis/subview/util/AbstractDataModelProxy.java
+++ b/src/main/java/kieker/diagnosis/subview/util/AbstractDataModelProxy.java
@@ -41,7 +41,7 @@ public abstract class AbstractDataModelProxy<T> extends Observable implements IM
 		return this.dataModel.getShortTimeUnit();
 	}
 
-	protected DataModel getDataModel() {
+	protected final DataModel getDataModel() {
 		return this.dataModel;
 	}
 }