--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/native/utilities/test_bitMap.cpp	Tue Nov 01 16:23:29 2016 +0300
@@ -0,0 +1,132 @@
+/*
+ * 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.
+ */
+
+#include "precompiled.hpp"
+#include "memory/resourceArea.hpp"
+#include "utilities/bitMap.inline.hpp"
+#include "unittest.hpp"
+
+class BitMapTest {
+
+  template <class ResizableBitMapClass>
+  static void fillBitMap(ResizableBitMapClass& map) {
+    map.set_bit(1);
+    map.set_bit(3);
+    map.set_bit(17);
+    map.set_bit(512);
+  }
+
+  template <class ResizableBitMapClass>
+  static void testResize(BitMap::idx_t start_size) {
+    ResourceMark rm;
+
+    ResizableBitMapClass map(start_size);
+    map.resize(BITMAP_SIZE);
+    fillBitMap(map);
+
+    ResizableBitMapClass map2(BITMAP_SIZE);
+    fillBitMap(map2);
+    EXPECT_TRUE(map.is_same(map2)) << "With start_size " << start_size;
+  }
+
+ public:
+  const static BitMap::idx_t BITMAP_SIZE = 1024;
+
+
+  template <class ResizableBitMapClass>
+  static void testResizeGrow() {
+    testResize<ResizableBitMapClass>(0);
+    testResize<ResizableBitMapClass>(BITMAP_SIZE >> 3);
+  }
+
+  template <class ResizableBitMapClass>
+  static void testResizeSame() {
+    testResize<ResizableBitMapClass>(BITMAP_SIZE);
+  }
+
+  template <class ResizableBitMapClass>
+  static void testResizeShrink() {
+    testResize<ResizableBitMapClass>(BITMAP_SIZE * 2);
+  }
+
+  template <class InitializableBitMapClass>
+  static void testInitialize() {
+    ResourceMark rm;
+
+    InitializableBitMapClass map;
+    map.initialize(BITMAP_SIZE);
+    fillBitMap(map);
+
+    InitializableBitMapClass map2(BITMAP_SIZE);
+    fillBitMap(map2);
+    EXPECT_TRUE(map.is_same(map2));
+  }
+
+
+  static void testReinitialize(BitMap::idx_t init_size) {
+    ResourceMark rm;
+
+    ResourceBitMap map(init_size);
+    map.reinitialize(BITMAP_SIZE);
+    fillBitMap(map);
+
+    ResourceBitMap map2(BITMAP_SIZE);
+    fillBitMap(map2);
+    EXPECT_TRUE(map.is_same(map2)) << "With init_size " << init_size;
+  }
+
+};
+
+TEST_VM(BitMap, resize_grow) {
+  BitMapTest::testResizeGrow<ResourceBitMap>();
+  EXPECT_FALSE(HasFailure()) << "Failed on type ResourceBitMap";
+  BitMapTest::testResizeGrow<CHeapBitMap>();
+  EXPECT_FALSE(HasFailure()) << "Failed on type CHeapBitMap";
+}
+
+TEST_VM(BitMap, resize_shrink) {
+  BitMapTest::testResizeShrink<ResourceBitMap>();
+  EXPECT_FALSE(HasFailure()) << "Failed on type ResourceBitMap";
+  BitMapTest::testResizeShrink<CHeapBitMap>();
+  EXPECT_FALSE(HasFailure()) << "Failed on type CHeapBitMap";
+}
+
+TEST_VM(BitMap, resize_same) {
+  BitMapTest::testResizeSame<ResourceBitMap>();
+  EXPECT_FALSE(HasFailure()) << "Failed on type ResourceBitMap";
+  BitMapTest::testResizeSame<CHeapBitMap>();
+  EXPECT_FALSE(HasFailure()) << "Failed on type CHeapBitMap";
+}
+
+TEST_VM(BitMap, initialize) {
+  BitMapTest::testInitialize<ResourceBitMap>();
+  EXPECT_FALSE(HasFailure()) << "Failed on type ResourceBitMap";
+  BitMapTest::testInitialize<CHeapBitMap>();
+  EXPECT_FALSE(HasFailure()) << "Failed on type CHeapBitMap";
+}
+
+TEST_VM(BitMap, reinitialize) {
+  BitMapTest::testReinitialize(0);
+  BitMapTest::testReinitialize(BitMapTest::BITMAP_SIZE >> 3);
+  BitMapTest::testReinitialize(BitMapTest::BITMAP_SIZE);
+}