diff --git a/.settings/edu.umd.cs.findbugs.core.prefs b/.settings/edu.umd.cs.findbugs.core.prefs
index 6aba28e5986cd8348751ed6d3c025c915ad7b0d2..0e77dd3b3fa164945555ed17662cd22942b799b7 100644
--- a/.settings/edu.umd.cs.findbugs.core.prefs
+++ b/.settings/edu.umd.cs.findbugs.core.prefs
@@ -1,5 +1,5 @@
 #FindBugs User Preferences
-#Fri Jun 12 08:15:02 CEST 2015
+#Mon Jun 15 14:19:55 CEST 2015
 detector_threshold=2
 effort=max
 excludefilter0=.fbExcludeFilterFile|true
diff --git a/pom.xml b/pom.xml
index 10a5797ca03b3ddea34b45d7fefc7bf7a005d7cd..e901b55f5384f838570d43e2dd8488be87d38a13 100644
--- a/pom.xml
+++ b/pom.xml
@@ -185,6 +185,9 @@
 				<groupId>org.apache.maven.plugins</groupId>
 				<artifactId>maven-javadoc-plugin</artifactId>
 				<version>2.10.3</version>
+				<configuration>
+					<failOnError>false</failOnError>
+				</configuration>
 				<executions>
 					<execution>
 						<id>attach-javadocs</id>
@@ -286,7 +289,7 @@
 					<linkXref>true</linkXref>
 					<includeTests>true</includeTests>
 					<targetJdk>${java.version}</targetJdk>
-<!-- 					<failurePriority>1</failurePriority> -->
+					<!-- <failurePriority>1</failurePriority> -->
 					<failOnViolation>true</failOnViolation>
 				</configuration>
 				<executions>
diff --git a/src/main/java/teetime/util/Connection.java b/src/main/java/teetime/util/Connection.java
index c8e3740d632729986e0d0a718b82eec837c0cf43..f110c3da3e172013f17ea9f4d42ebc0178e2b222 100644
--- a/src/main/java/teetime/util/Connection.java
+++ b/src/main/java/teetime/util/Connection.java
@@ -1,3 +1,18 @@
+/**
+ * Copyright (C) 2015 Christian Wulf, Nelson Tavares de Sousa (http://teetime.sourceforge.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 teetime.util;
 
 import teetime.framework.InputPort;
diff --git a/src/test/java/teetime/framework/RunnableProducerStageTest.java b/src/test/java/teetime/framework/RunnableProducerStageTest.java
index 4f2120ac2207c57286c23b61e0d91a09b5b296b6..60ae16e95d53122f538ffe92bbcf3ab7a36b82ed 100644
--- a/src/test/java/teetime/framework/RunnableProducerStageTest.java
+++ b/src/test/java/teetime/framework/RunnableProducerStageTest.java
@@ -1,3 +1,18 @@
+/**
+ * Copyright (C) 2015 Christian Wulf, Nelson Tavares de Sousa (http://teetime.sourceforge.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 teetime.framework;
 
 import static org.junit.Assert.assertFalse;
diff --git a/src/test/java/teetime/framework/RunnableTestStage.java b/src/test/java/teetime/framework/RunnableTestStage.java
index 47f4cd0c31f542a2e8b40a9626cb001b47ec4c6f..a9651a8dfe91667f643aa1bfceee560b63326b92 100644
--- a/src/test/java/teetime/framework/RunnableTestStage.java
+++ b/src/test/java/teetime/framework/RunnableTestStage.java
@@ -1,3 +1,18 @@
+/**
+ * Copyright (C) 2015 Christian Wulf, Nelson Tavares de Sousa (http://teetime.sourceforge.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 teetime.framework;
 
 class RunnableTestStage extends AbstractProducerStage<Object> {
diff --git a/src/test/java/teetime/stage/io/File2SeqOfWordsTest.java b/src/test/java/teetime/stage/io/File2SeqOfWordsTest.java
index 66cdd8837505468be5d54b6e347903b6420c31cb..d6990c69c520b7ebd4f3173e82bd8dcfcacb5a01 100644
--- a/src/test/java/teetime/stage/io/File2SeqOfWordsTest.java
+++ b/src/test/java/teetime/stage/io/File2SeqOfWordsTest.java
@@ -1,3 +1,18 @@
+/**
+ * Copyright (C) 2015 Christian Wulf, Nelson Tavares de Sousa (http://teetime.sourceforge.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 teetime.stage.io;
 
 import static org.junit.Assert.assertEquals;
diff --git a/src/test/java/teetime/stage/io/PrinterTest.java b/src/test/java/teetime/stage/io/PrinterTest.java
index 362b1caaaf5adbf93db203681d988168ad8bdc36..26477894205b6f6ac35e23c71a4f6c811b0c6259 100644
--- a/src/test/java/teetime/stage/io/PrinterTest.java
+++ b/src/test/java/teetime/stage/io/PrinterTest.java
@@ -1,3 +1,18 @@
+/**
+ * Copyright (C) 2015 Christian Wulf, Nelson Tavares de Sousa (http://teetime.sourceforge.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 teetime.stage.io;
 
 import static org.hamcrest.CoreMatchers.containsString;