diff --git a/common/source/java/ch/systemsx/cisd/common/utilities/IPredicate.java b/common/source/java/ch/systemsx/cisd/common/utilities/IPredicate.java
index 4d8ef330d0f52b787af8cba92c82c2e9dec8bbeb..77bbe1ee95477a6b39eaf2c2cf2f5d85a3b948f3 100644
--- a/common/source/java/ch/systemsx/cisd/common/utilities/IPredicate.java
+++ b/common/source/java/ch/systemsx/cisd/common/utilities/IPredicate.java
@@ -1,3 +1,19 @@
+/*
+ * Copyright 2012 ETH Zuerich, CISD
+ *
+ * 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 ch.systemsx.cisd.common.utilities;
 
 /**