--- old/src/java.base/share/classes/java/lang/reflect/Executable.java	2016-07-26 12:13:58.189803811 -0700
+++ new/src/java.base/share/classes/java/lang/reflect/Executable.java	2016-07-26 12:13:58.065803807 -0700
@@ -122,7 +122,7 @@
             sb.append(')');
 
             if (exceptionTypes.length > 0) {
-                StringJoiner joiner = new StringJoiner(",", "throws ", "");
+                StringJoiner joiner = new StringJoiner(",", " throws ", "");
                 for (Class<?> exceptionType : exceptionTypes) {
                     joiner.add(exceptionType.getTypeName());
                 }