--- /dev/null	2019-02-13 16:01:02.292000000 +0300
+++ new/src/share/vm/jfr/leakprofiler/leakProfiler.hpp	2019-02-15 19:03:06.625814328 +0300
@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 2014, 2018, 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_JFR_LEAKPROFILER_LEAKPROFILER_HPP
+#define SHARE_VM_JFR_LEAKPROFILER_LEAKPROFILER_HPP
+
+#include "memory/allocation.hpp"
+
+class BoolObjectClosure;
+class ObjectSampler;
+class OopClosure;
+class Thread;
+
+class LeakProfiler : public AllStatic {
+  friend class ClassUnloadTypeSet;
+  friend class EmitEventOperation;
+  friend class ObjectSampleCheckpoint;
+  friend class StartOperation;
+  friend class StopOperation;
+  friend class TypeSet;
+  friend class WriteObjectSampleStacktrace;
+
+ private:
+  static ObjectSampler* _object_sampler;
+
+  static void set_object_sampler(ObjectSampler* object_sampler);
+  static ObjectSampler* object_sampler();
+
+  static void suspend();
+  static void resume();
+  static bool is_suspended();
+
+ public:
+  static bool start(jint sample_count);
+  static bool stop();
+  static void emit_events(jlong cutoff_ticks, bool emit_all);
+  static bool is_running();
+
+  static void sample(HeapWord* object, size_t size, JavaThread* thread);
+
+  // Called by GC
+  static void oops_do(BoolObjectClosure* is_alive, OopClosure* f);
+};
+
+#endif // SHARE_VM_JFR_LEAKPROFILER_LEAKPROFILER_HPP