add missing notice info
diff --git a/NOTICE b/NOTICE
index ac618fb..38f85de 100644
--- a/NOTICE
+++ b/NOTICE
@@ -4,6 +4,10 @@
This product includes software developed at
The Apache Software Foundation (http://www.apache.org/).
+The Java source files in src/main/java/org/apache/groovy/util/concurrent/concurrentlinkedhashmap/
+are from https://github.com/ben-manes/concurrentlinkedhashmap and the following notice applies:
+Copyright 2010-2012 Google Inc. All Rights Reserved.
+
This product bundles icons from the famfamfam.com silk icons set
http://www.famfamfam.com/lab/icons/silk/
Licensed under the Creative Commons Attribution Licence v2.5
diff --git a/notices/concurrentlinkedhashmap-SRC.txt b/notices/concurrentlinkedhashmap-SRC.txt
new file mode 100644
index 0000000..4c6a87c
--- /dev/null
+++ b/notices/concurrentlinkedhashmap-SRC.txt
@@ -0,0 +1,3 @@
+The Java source files in src/main/java/org/apache/groovy/util/concurrent/concurrentlinkedhashmap/
+are from https://github.com/ben-manes/concurrentlinkedhashmap and the following notice applies:
+Copyright 2010-2012 Google Inc. All Rights Reserved.
