The Collections Framework guide's index page has a typo in the title (the browser title bar, not the page heading). See patch below:
diff -r 872d5b8505ba docs/technotes/guides/collections/index.html
--- a/docs/technotes/guides/collections/index.html Thu Aug 06 08:07:47 2015 -0700
+++ b/docs/technotes/guides/collections/index.html Mon Aug 17 15:51:36 2015 -0700
@@ -5,7 +5,7 @@
"en-US">
<head>
<meta name="generator" content="HTML Tidy, see www.w3.org" />
-<title>The Collectdions Framework</title>
+<title>The Collections Framework</title>
<style type="text/css">
/*<![CDATA[*/