diff -r a7c037dd2e14 -r 0dd4f82becda jdk/test/java/util/Formatter/BasicFloatObject.java
--- a/jdk/test/java/util/Formatter/BasicFloatObject.java	Thu Jul 23 14:06:51 2009 +0100
+++ b/jdk/test/java/util/Formatter/BasicFloatObject.java	Fri Jul 24 11:06:57 2009 -0700
@@ -486,6 +486,10 @@
         //---------------------------------------------------------------------
         tryCatch("%-s", MissingFormatWidthException.class);
         tryCatch("%--s", DuplicateFormatFlagsException.class);
+        tryCatch("%#s", FormatFlagsConversionMismatchException.class, 0);
+        tryCatch("%#s", FormatFlagsConversionMismatchException.class, 0.5f);
+        tryCatch("%#s", FormatFlagsConversionMismatchException.class, "hello");
+        tryCatch("%#s", FormatFlagsConversionMismatchException.class, null);
 
         //---------------------------------------------------------------------
         // %h