--- a/langtools/src/share/classes/com/sun/tools/javac/util/MandatoryWarningHandler.java	Wed Dec 18 19:22:58 2013 +0000
+++ b/langtools/src/share/classes/com/sun/tools/javac/util/MandatoryWarningHandler.java	Wed Dec 18 16:05:18 2013 -0500
@@ -126,7 +126,7 @@
 
         if (verbose) {
             if (sourcesWithReportedWarnings == null)
-                sourcesWithReportedWarnings = new HashSet<JavaFileObject>();
+                sourcesWithReportedWarnings = new HashSet<>();
 
             if (log.nwarnings < log.MaxWarnings) {
                 // generate message and remember the source file