--- old/src/share/vm/utilities/utf8.cpp	2014-04-03 14:47:15.083235291 +0200
+++ new/src/share/vm/utilities/utf8.cpp	2014-04-03 14:47:14.918540203 +0200
@@ -329,14 +329,10 @@
 
 char* UNICODE::as_utf8(jchar* base, int length) {
   int utf8_len = utf8_length(base, length);
-  u_char* result = NEW_RESOURCE_ARRAY(u_char, utf8_len + 1);
-  u_char* p = result;
-  for (int index = 0; index < length; index++) {
-    p = utf8_write(p, base[index]);
-  }
-  *p = '\0';
-  assert(p == &result[utf8_len], "length prediction must be correct");
-  return (char*) result;
+  u_char* buf = NEW_RESOURCE_ARRAY(u_char, utf8_len + 1);
+  char* result = as_utf8(base, length, (char*) buf, utf8_len + 1);
+  assert((int) strlen(result) == utf8_len, "length prediction must be correct");
+  return result;
 }
 
 char* UNICODE::as_utf8(jchar* base, int length, char* buf, int buflen) {