--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/share/vm/classfile/classListParser.hpp	Tue Aug 18 11:27:23 2015 -0700
@@ -0,0 +1,56 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#ifndef SHARE_VM_MEMORY_CLASSLISTPARSER_HPP
+#define SHARE_VM_MEMORY_CLASSLISTPARSER_HPP
+
+#include "utilities/exceptions.hpp"
+#include "utilities/globalDefinitions.hpp"
+
+class ClassListParser : public StackObj {
+  enum {
+    // Max number of bytes allowed per line in the classlist.
+    // Theoretically Java class names could be 65535 bytes in length. In reality,
+    // 4K bytes is more than enough.
+    _max_allowed_line_len = 4096,
+    _line_buf_extra       = 10, // for detecting input too long
+    _line_buf_size        = _max_allowed_line_len + _line_buf_extra
+  };
+
+  const char* _classlist_file;
+  FILE* _file;
+  char  _line[_line_buf_size];  // The buffer that holds the current line.
+
+public:
+  ClassListParser(const char* file);
+  ~ClassListParser();
+  bool parse_one_line();
+
+  const char* current_class_name() {
+    return _line;
+  }
+};
+
+
+#endif // SHARE_VM_MEMORY_CLASSLISTPARSER_HPP