--- /dev/null	2016-10-25 08:46:44.038854975 +0200
+++ new/src/share/classes/sun/evtracing/processing/statistics/Statistics.java	2016-10-25 10:40:51.140805306 +0200
@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2014, 2015, Dynatrace and/or its affiliates. All rights reserved.
+ * 
+ * This file is part of the Lock Contention Tracing Subsystem for the HotSpot
+ * Virtual Machine, which is developed at Christian Doppler Laboratory on
+ * Monitoring and Evolution of Very-Large-Scale Software Systems. Please
+ * contact us at <http://mevss.jku.at/> if you need additional information
+ * or have any questions.
+ *
+ * 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, see <http://www.gnu.org/licenses/>.
+ *
+ */ 
+package sun.evtracing.processing.statistics;
+
+import java.util.Map;
+
+import sun.evtracing.parser.metadata.JavaThread;
+import sun.evtracing.processing.statistics.aggregator.Aggregator;
+import sun.evtracing.processing.statistics.metadata.JavaClassStack;
+
+public interface Statistics {
+
+	Map<JavaThread, Aggregator> contendingThreads();
+
+	Map<JavaClassStack, Aggregator> blockerClasses();
+
+}
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