--- old/src/share/vm/logging/logStream.hpp	2017-07-19 17:21:47.586064500 +0200
+++ new/src/share/vm/logging/logStream.hpp	2017-07-19 17:21:46.783996500 +0200
@@ -48,7 +48,7 @@
   public:
     LineBuffer();
     ~LineBuffer();
-    const char* ptr() const { return _buf; }
+    const char* buffer() const { return _buf; }
     void append(const char* s, size_t len);
     void reset();
   };