--- /dev/null	2016-02-08 00:02:26.507791838 +0300
+++ new/test/gc/g1/plab/lib/PlabInfo.java	2016-03-18 18:05:47.996086694 +0300
@@ -0,0 +1,105 @@
+/*
+ * Copyright (c) 2016, 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.
+ */
+package gc.g1.plab.lib;
+
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+public class PlabInfo {
+
+    private final Map<String, Long> plabInfo;
+
+    public PlabInfo() {
+        plabInfo = new HashMap<>();
+    }
+
+    private PlabInfo(Map<String, Long> map) {
+        plabInfo = new HashMap<>(map);
+    }
+
+    /**
+     * Add key and value to underlying Map.
+     * @param key   PLAB info field name
+     * @param value PLAB info value for field
+     */
+    public void put(String key, long value) {
+        plabInfo.put(key, value);
+    }
+
+    /**
+     * Get stream of Map.Entry representing underlying Map with PLAB information.
+     */
+    public Stream<Map.Entry<String, Long>> entryStream() {
+        return plabInfo.entrySet().stream();
+    }
+
+    /**
+     * Returns the PlabInfo narrowed for the given fields only
+     * @param fields
+     * @return PlabInfo
+     */
+    public PlabInfo filter(List<String> fields) {
+        return new PlabInfo(entryStream()
+                .filter(field -> fields.contains(field.getKey()))
+                .collect(Collectors.toMap(
+                        item -> item.getKey(),
+                        item -> item.getValue())
+                )
+        );
+    }
+
+    /**
+     * Checks if statistic contains expected fields.
+     * @param fields fields which should be in statistic
+     * @return true if all fields are in statistic, false otherwise
+     */
+    public boolean checkFields(List<String> fields) {
+        for (String key : fields) {
+            if (!plabInfo.containsKey(key)) {
+                return false;
+            }
+        }
+        return true;
+    }
+
+    /**
+     * Return a collection of the values.
+     * @return collection of values
+     */
+    public Collection<Long> values() {
+        return plabInfo.values();
+    }
+
+    /**
+     * Get value for specified field.
+     * @param field
+     * @return long value which is contained in specified field
+     */
+    public long get(String field) {
+        return plabInfo.get(field);
+    }
+}