--- old/src/jdk.scripting.nashorn/share/classes/jdk/nashorn/internal/runtime/resources/Messages.properties	2016-11-04 21:48:10.000000000 +0100
+++ new/src/jdk.scripting.nashorn/share/classes/jdk/nashorn/internal/runtime/resources/Messages.properties	2016-11-04 21:48:10.000000000 +0100
@@ -214,6 +214,7 @@
 syntax.error.strict.cant.delete=cannot delete "{0}" in strict mode
 syntax.error.redeclare.variable=Variable "{0}" has already been declared
 syntax.error.unprotected.switch.declaration=Unsupported {0} declaration in unprotected switch statement
+syntax.error.duplicate.parameter=Duplicate parameter name "{0}"
 
 io.error.cant.write=cannot write "{0}"
 
@@ -222,3 +223,12 @@
 
 uri.error.bad.uri=Bad URI "{0}" near offset {1}
 list.adapter.null.global=Attempted to create the adapter from outside a JavaScript execution context.
+
+unimplemented.es6.module=ES6 modules are not yet implemented
+unimplemented.es6.rest.param=ES6 function rest parameter declaration is not yet implemented
+unimplemented.es6.yield=ES6 yield and yield* are not yet implemented
+unimplemented.es6.spread=ES6 spread operator is not yet implemented
+unimplemented.es6.class=ES6 class declarations and expressions are not yet implemented
+unimplemented.es6.destructuring=ES6 destructuring is not yet implemented
+unimplemented.es6.generator=ES6 generator is not yet implemented
+unimplemented.es6.super=ES6 super keyword is not yet implemented