Fixes findbugs warning - dereferencing null in exception case

Simon Harrer

2013-07-18 fbe265fa787e4be9cb63c6bae2ef30b9400d9afc

 src/main/java/com/gitblit/PagesServlet.java

@@ -150,8 +150,9 @@
         if (StringUtils.isEmpty(resource)) {

            // find resource

            List<String> markdownExtensions = GitBlit.getStrings(Keys.web.markdownExtensions);

            List<String> extensions = new ArrayList<String>(markdownExtensions.size() + 1);

            List<String> extensions = new ArrayList<String>(markdownExtensions.size() + 2);

            extensions.add("html");

            extensions.add("htm");

            extensions.addAll(markdownExtensions);

            for (String ext : extensions){

               String file = "index." + ext;