--- a/langtools/src/jdk.compiler/share/classes/com/sun/tools/javac/file/BaseFileManager.java	Wed Jun 14 20:05:01 2017 +0000
+++ b/langtools/src/jdk.compiler/share/classes/com/sun/tools/javac/file/BaseFileManager.java	Thu Jun 15 13:44:42 2017 +0200
@@ -311,7 +311,7 @@
         try {
             decoder = getDecoder(encName, ignoreEncodingErrors);
         } catch (IllegalCharsetNameException | UnsupportedCharsetException e) {
-            log.error("unsupported.encoding", encName);
+            log.error(Errors.UnsupportedEncoding(encName));
             return (CharBuffer)CharBuffer.allocate(1).flip();
         }