http://git-wip-us.apache.org/repos/asf/incubator-ratis/blob/7e71a2e0/raft-common/src/main/java/org/apache/raft/util/PureJavaCrc32C.java
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diff --git a/raft-common/src/main/java/org/apache/raft/util/PureJavaCrc32C.java 
b/raft-common/src/main/java/org/apache/raft/util/PureJavaCrc32C.java
deleted file mode 100644
index 8d7321a..0000000
--- a/raft-common/src/main/java/org/apache/raft/util/PureJavaCrc32C.java
+++ /dev/null
@@ -1,632 +0,0 @@
-/**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- * 
- * Some portions of this file Copyright (c) 2004-2006 Intel Corportation
- * and licensed under the BSD license.
- */
-package org.apache.raft.util;
-
-import java.util.zip.Checksum;
-
-/**
- * A pure-java implementation of the CRC32 checksum that uses
- * the CRC32-C polynomial, the same polynomial used by iSCSI
- * and implemented on many Intel chipsets supporting SSE4.2.
- */
-public class PureJavaCrc32C implements Checksum {
-
-  /** the current CRC value, bit-flipped */
-  private int crc;
-
-  /** Create a new PureJavaCrc32 object. */
-  public PureJavaCrc32C() {
-    reset();
-  }
-
-  @Override
-  public long getValue() {
-    long ret = crc;
-    return (~ret) & 0xffffffffL;
-  }
-
-  @Override
-  public void reset() {
-    crc = 0xffffffff;
-  }
-
-  @Override
-  public void update(byte[] b, int off, int len) {
-    int localCrc = crc;
-
-    while(len > 7) {
-      final int c0 =(b[off+0] ^ localCrc) & 0xff;
-      final int c1 =(b[off+1] ^ (localCrc >>>= 8)) & 0xff;
-      final int c2 =(b[off+2] ^ (localCrc >>>= 8)) & 0xff;
-      final int c3 =(b[off+3] ^ (localCrc >>>= 8)) & 0xff;
-      localCrc = (T[T8_7_start + c0] ^ T[T8_6_start + c1])
-          ^ (T[T8_5_start + c2] ^ T[T8_4_start + c3]);
-
-      final int c4 = b[off+4] & 0xff;
-      final int c5 = b[off+5] & 0xff;
-      final int c6 = b[off+6] & 0xff;
-      final int c7 = b[off+7] & 0xff;
-
-      localCrc ^= (T[T8_3_start + c4] ^ T[T8_2_start + c5])
-           ^ (T[T8_1_start + c6] ^ T[T8_0_start + c7]);
-
-      off += 8;
-      len -= 8;
-    }
-
-    /* loop unroll - duff's device style */
-    switch(len) {
-      case 7: localCrc = (localCrc >>> 8) ^ T[T8_0_start + ((localCrc ^ 
b[off++]) & 0xff)];
-      case 6: localCrc = (localCrc >>> 8) ^ T[T8_0_start + ((localCrc ^ 
b[off++]) & 0xff)];
-      case 5: localCrc = (localCrc >>> 8) ^ T[T8_0_start + ((localCrc ^ 
b[off++]) & 0xff)];
-      case 4: localCrc = (localCrc >>> 8) ^ T[T8_0_start + ((localCrc ^ 
b[off++]) & 0xff)];
-      case 3: localCrc = (localCrc >>> 8) ^ T[T8_0_start + ((localCrc ^ 
b[off++]) & 0xff)];
-      case 2: localCrc = (localCrc >>> 8) ^ T[T8_0_start + ((localCrc ^ 
b[off++]) & 0xff)];
-      case 1: localCrc = (localCrc >>> 8) ^ T[T8_0_start + ((localCrc ^ 
b[off++]) & 0xff)];
-      default:
-        /* nothing */
-    }
-    
-    // Publish crc out to object
-    crc = localCrc;
-  }
-
-  @Override
-  final public void update(int b) {
-    crc = (crc >>> 8) ^ T[T8_0_start + ((crc ^ b) & 0xff)];
-  }
-    
-  // CRC polynomial tables generated by:
-  // java -cp build/test/classes/:build/classes/ \
-  //   org.apache.hadoop.util.TestPureJavaCrc32\$Table 82F63B78
-
-  private static final int T8_0_start = 0*256;
-  private static final int T8_1_start = 1*256;
-  private static final int T8_2_start = 2*256;
-  private static final int T8_3_start = 3*256;
-  private static final int T8_4_start = 4*256;
-  private static final int T8_5_start = 5*256;
-  private static final int T8_6_start = 6*256;
-  private static final int T8_7_start = 7*256;
-
-  private static final int[] T = new int[] {
-    /* T8_0 */
-    0x00000000, 0xF26B8303, 0xE13B70F7, 0x1350F3F4, 
-    0xC79A971F, 0x35F1141C, 0x26A1E7E8, 0xD4CA64EB, 
-    0x8AD958CF, 0x78B2DBCC, 0x6BE22838, 0x9989AB3B, 
-    0x4D43CFD0, 0xBF284CD3, 0xAC78BF27, 0x5E133C24, 
-    0x105EC76F, 0xE235446C, 0xF165B798, 0x030E349B, 
-    0xD7C45070, 0x25AFD373, 0x36FF2087, 0xC494A384, 
-    0x9A879FA0, 0x68EC1CA3, 0x7BBCEF57, 0x89D76C54, 
-    0x5D1D08BF, 0xAF768BBC, 0xBC267848, 0x4E4DFB4B, 
-    0x20BD8EDE, 0xD2D60DDD, 0xC186FE29, 0x33ED7D2A, 
-    0xE72719C1, 0x154C9AC2, 0x061C6936, 0xF477EA35, 
-    0xAA64D611, 0x580F5512, 0x4B5FA6E6, 0xB93425E5, 
-    0x6DFE410E, 0x9F95C20D, 0x8CC531F9, 0x7EAEB2FA, 
-    0x30E349B1, 0xC288CAB2, 0xD1D83946, 0x23B3BA45, 
-    0xF779DEAE, 0x05125DAD, 0x1642AE59, 0xE4292D5A, 
-    0xBA3A117E, 0x4851927D, 0x5B016189, 0xA96AE28A, 
-    0x7DA08661, 0x8FCB0562, 0x9C9BF696, 0x6EF07595, 
-    0x417B1DBC, 0xB3109EBF, 0xA0406D4B, 0x522BEE48, 
-    0x86E18AA3, 0x748A09A0, 0x67DAFA54, 0x95B17957, 
-    0xCBA24573, 0x39C9C670, 0x2A993584, 0xD8F2B687, 
-    0x0C38D26C, 0xFE53516F, 0xED03A29B, 0x1F682198, 
-    0x5125DAD3, 0xA34E59D0, 0xB01EAA24, 0x42752927, 
-    0x96BF4DCC, 0x64D4CECF, 0x77843D3B, 0x85EFBE38, 
-    0xDBFC821C, 0x2997011F, 0x3AC7F2EB, 0xC8AC71E8, 
-    0x1C661503, 0xEE0D9600, 0xFD5D65F4, 0x0F36E6F7, 
-    0x61C69362, 0x93AD1061, 0x80FDE395, 0x72966096, 
-    0xA65C047D, 0x5437877E, 0x4767748A, 0xB50CF789, 
-    0xEB1FCBAD, 0x197448AE, 0x0A24BB5A, 0xF84F3859, 
-    0x2C855CB2, 0xDEEEDFB1, 0xCDBE2C45, 0x3FD5AF46, 
-    0x7198540D, 0x83F3D70E, 0x90A324FA, 0x62C8A7F9, 
-    0xB602C312, 0x44694011, 0x5739B3E5, 0xA55230E6, 
-    0xFB410CC2, 0x092A8FC1, 0x1A7A7C35, 0xE811FF36, 
-    0x3CDB9BDD, 0xCEB018DE, 0xDDE0EB2A, 0x2F8B6829, 
-    0x82F63B78, 0x709DB87B, 0x63CD4B8F, 0x91A6C88C, 
-    0x456CAC67, 0xB7072F64, 0xA457DC90, 0x563C5F93, 
-    0x082F63B7, 0xFA44E0B4, 0xE9141340, 0x1B7F9043, 
-    0xCFB5F4A8, 0x3DDE77AB, 0x2E8E845F, 0xDCE5075C, 
-    0x92A8FC17, 0x60C37F14, 0x73938CE0, 0x81F80FE3, 
-    0x55326B08, 0xA759E80B, 0xB4091BFF, 0x466298FC, 
-    0x1871A4D8, 0xEA1A27DB, 0xF94AD42F, 0x0B21572C, 
-    0xDFEB33C7, 0x2D80B0C4, 0x3ED04330, 0xCCBBC033, 
-    0xA24BB5A6, 0x502036A5, 0x4370C551, 0xB11B4652, 
-    0x65D122B9, 0x97BAA1BA, 0x84EA524E, 0x7681D14D, 
-    0x2892ED69, 0xDAF96E6A, 0xC9A99D9E, 0x3BC21E9D, 
-    0xEF087A76, 0x1D63F975, 0x0E330A81, 0xFC588982, 
-    0xB21572C9, 0x407EF1CA, 0x532E023E, 0xA145813D, 
-    0x758FE5D6, 0x87E466D5, 0x94B49521, 0x66DF1622, 
-    0x38CC2A06, 0xCAA7A905, 0xD9F75AF1, 0x2B9CD9F2, 
-    0xFF56BD19, 0x0D3D3E1A, 0x1E6DCDEE, 0xEC064EED, 
-    0xC38D26C4, 0x31E6A5C7, 0x22B65633, 0xD0DDD530, 
-    0x0417B1DB, 0xF67C32D8, 0xE52CC12C, 0x1747422F, 
-    0x49547E0B, 0xBB3FFD08, 0xA86F0EFC, 0x5A048DFF, 
-    0x8ECEE914, 0x7CA56A17, 0x6FF599E3, 0x9D9E1AE0, 
-    0xD3D3E1AB, 0x21B862A8, 0x32E8915C, 0xC083125F, 
-    0x144976B4, 0xE622F5B7, 0xF5720643, 0x07198540, 
-    0x590AB964, 0xAB613A67, 0xB831C993, 0x4A5A4A90, 
-    0x9E902E7B, 0x6CFBAD78, 0x7FAB5E8C, 0x8DC0DD8F, 
-    0xE330A81A, 0x115B2B19, 0x020BD8ED, 0xF0605BEE, 
-    0x24AA3F05, 0xD6C1BC06, 0xC5914FF2, 0x37FACCF1, 
-    0x69E9F0D5, 0x9B8273D6, 0x88D28022, 0x7AB90321, 
-    0xAE7367CA, 0x5C18E4C9, 0x4F48173D, 0xBD23943E, 
-    0xF36E6F75, 0x0105EC76, 0x12551F82, 0xE03E9C81, 
-    0x34F4F86A, 0xC69F7B69, 0xD5CF889D, 0x27A40B9E, 
-    0x79B737BA, 0x8BDCB4B9, 0x988C474D, 0x6AE7C44E, 
-    0xBE2DA0A5, 0x4C4623A6, 0x5F16D052, 0xAD7D5351, 
-    /* T8_1 */
-    0x00000000, 0x13A29877, 0x274530EE, 0x34E7A899, 
-    0x4E8A61DC, 0x5D28F9AB, 0x69CF5132, 0x7A6DC945, 
-    0x9D14C3B8, 0x8EB65BCF, 0xBA51F356, 0xA9F36B21, 
-    0xD39EA264, 0xC03C3A13, 0xF4DB928A, 0xE7790AFD, 
-    0x3FC5F181, 0x2C6769F6, 0x1880C16F, 0x0B225918, 
-    0x714F905D, 0x62ED082A, 0x560AA0B3, 0x45A838C4, 
-    0xA2D13239, 0xB173AA4E, 0x859402D7, 0x96369AA0, 
-    0xEC5B53E5, 0xFFF9CB92, 0xCB1E630B, 0xD8BCFB7C, 
-    0x7F8BE302, 0x6C297B75, 0x58CED3EC, 0x4B6C4B9B, 
-    0x310182DE, 0x22A31AA9, 0x1644B230, 0x05E62A47, 
-    0xE29F20BA, 0xF13DB8CD, 0xC5DA1054, 0xD6788823, 
-    0xAC154166, 0xBFB7D911, 0x8B507188, 0x98F2E9FF, 
-    0x404E1283, 0x53EC8AF4, 0x670B226D, 0x74A9BA1A, 
-    0x0EC4735F, 0x1D66EB28, 0x298143B1, 0x3A23DBC6, 
-    0xDD5AD13B, 0xCEF8494C, 0xFA1FE1D5, 0xE9BD79A2, 
-    0x93D0B0E7, 0x80722890, 0xB4958009, 0xA737187E, 
-    0xFF17C604, 0xECB55E73, 0xD852F6EA, 0xCBF06E9D, 
-    0xB19DA7D8, 0xA23F3FAF, 0x96D89736, 0x857A0F41, 
-    0x620305BC, 0x71A19DCB, 0x45463552, 0x56E4AD25, 
-    0x2C896460, 0x3F2BFC17, 0x0BCC548E, 0x186ECCF9, 
-    0xC0D23785, 0xD370AFF2, 0xE797076B, 0xF4359F1C, 
-    0x8E585659, 0x9DFACE2E, 0xA91D66B7, 0xBABFFEC0, 
-    0x5DC6F43D, 0x4E646C4A, 0x7A83C4D3, 0x69215CA4, 
-    0x134C95E1, 0x00EE0D96, 0x3409A50F, 0x27AB3D78, 
-    0x809C2506, 0x933EBD71, 0xA7D915E8, 0xB47B8D9F, 
-    0xCE1644DA, 0xDDB4DCAD, 0xE9537434, 0xFAF1EC43, 
-    0x1D88E6BE, 0x0E2A7EC9, 0x3ACDD650, 0x296F4E27, 
-    0x53028762, 0x40A01F15, 0x7447B78C, 0x67E52FFB, 
-    0xBF59D487, 0xACFB4CF0, 0x981CE469, 0x8BBE7C1E, 
-    0xF1D3B55B, 0xE2712D2C, 0xD69685B5, 0xC5341DC2, 
-    0x224D173F, 0x31EF8F48, 0x050827D1, 0x16AABFA6, 
-    0x6CC776E3, 0x7F65EE94, 0x4B82460D, 0x5820DE7A, 
-    0xFBC3FAF9, 0xE861628E, 0xDC86CA17, 0xCF245260, 
-    0xB5499B25, 0xA6EB0352, 0x920CABCB, 0x81AE33BC, 
-    0x66D73941, 0x7575A136, 0x419209AF, 0x523091D8, 
-    0x285D589D, 0x3BFFC0EA, 0x0F186873, 0x1CBAF004, 
-    0xC4060B78, 0xD7A4930F, 0xE3433B96, 0xF0E1A3E1, 
-    0x8A8C6AA4, 0x992EF2D3, 0xADC95A4A, 0xBE6BC23D, 
-    0x5912C8C0, 0x4AB050B7, 0x7E57F82E, 0x6DF56059, 
-    0x1798A91C, 0x043A316B, 0x30DD99F2, 0x237F0185, 
-    0x844819FB, 0x97EA818C, 0xA30D2915, 0xB0AFB162, 
-    0xCAC27827, 0xD960E050, 0xED8748C9, 0xFE25D0BE, 
-    0x195CDA43, 0x0AFE4234, 0x3E19EAAD, 0x2DBB72DA, 
-    0x57D6BB9F, 0x447423E8, 0x70938B71, 0x63311306, 
-    0xBB8DE87A, 0xA82F700D, 0x9CC8D894, 0x8F6A40E3, 
-    0xF50789A6, 0xE6A511D1, 0xD242B948, 0xC1E0213F, 
-    0x26992BC2, 0x353BB3B5, 0x01DC1B2C, 0x127E835B, 
-    0x68134A1E, 0x7BB1D269, 0x4F567AF0, 0x5CF4E287, 
-    0x04D43CFD, 0x1776A48A, 0x23910C13, 0x30339464, 
-    0x4A5E5D21, 0x59FCC556, 0x6D1B6DCF, 0x7EB9F5B8, 
-    0x99C0FF45, 0x8A626732, 0xBE85CFAB, 0xAD2757DC, 
-    0xD74A9E99, 0xC4E806EE, 0xF00FAE77, 0xE3AD3600, 
-    0x3B11CD7C, 0x28B3550B, 0x1C54FD92, 0x0FF665E5, 
-    0x759BACA0, 0x663934D7, 0x52DE9C4E, 0x417C0439, 
-    0xA6050EC4, 0xB5A796B3, 0x81403E2A, 0x92E2A65D, 
-    0xE88F6F18, 0xFB2DF76F, 0xCFCA5FF6, 0xDC68C781, 
-    0x7B5FDFFF, 0x68FD4788, 0x5C1AEF11, 0x4FB87766, 
-    0x35D5BE23, 0x26772654, 0x12908ECD, 0x013216BA, 
-    0xE64B1C47, 0xF5E98430, 0xC10E2CA9, 0xD2ACB4DE, 
-    0xA8C17D9B, 0xBB63E5EC, 0x8F844D75, 0x9C26D502, 
-    0x449A2E7E, 0x5738B609, 0x63DF1E90, 0x707D86E7, 
-    0x0A104FA2, 0x19B2D7D5, 0x2D557F4C, 0x3EF7E73B, 
-    0xD98EEDC6, 0xCA2C75B1, 0xFECBDD28, 0xED69455F, 
-    0x97048C1A, 0x84A6146D, 0xB041BCF4, 0xA3E32483, 
-    /* T8_2 */
-    0x00000000, 0xA541927E, 0x4F6F520D, 0xEA2EC073, 
-    0x9EDEA41A, 0x3B9F3664, 0xD1B1F617, 0x74F06469, 
-    0x38513EC5, 0x9D10ACBB, 0x773E6CC8, 0xD27FFEB6, 
-    0xA68F9ADF, 0x03CE08A1, 0xE9E0C8D2, 0x4CA15AAC, 
-    0x70A27D8A, 0xD5E3EFF4, 0x3FCD2F87, 0x9A8CBDF9, 
-    0xEE7CD990, 0x4B3D4BEE, 0xA1138B9D, 0x045219E3, 
-    0x48F3434F, 0xEDB2D131, 0x079C1142, 0xA2DD833C, 
-    0xD62DE755, 0x736C752B, 0x9942B558, 0x3C032726, 
-    0xE144FB14, 0x4405696A, 0xAE2BA919, 0x0B6A3B67, 
-    0x7F9A5F0E, 0xDADBCD70, 0x30F50D03, 0x95B49F7D, 
-    0xD915C5D1, 0x7C5457AF, 0x967A97DC, 0x333B05A2, 
-    0x47CB61CB, 0xE28AF3B5, 0x08A433C6, 0xADE5A1B8, 
-    0x91E6869E, 0x34A714E0, 0xDE89D493, 0x7BC846ED, 
-    0x0F382284, 0xAA79B0FA, 0x40577089, 0xE516E2F7, 
-    0xA9B7B85B, 0x0CF62A25, 0xE6D8EA56, 0x43997828, 
-    0x37691C41, 0x92288E3F, 0x78064E4C, 0xDD47DC32, 
-    0xC76580D9, 0x622412A7, 0x880AD2D4, 0x2D4B40AA, 
-    0x59BB24C3, 0xFCFAB6BD, 0x16D476CE, 0xB395E4B0, 
-    0xFF34BE1C, 0x5A752C62, 0xB05BEC11, 0x151A7E6F, 
-    0x61EA1A06, 0xC4AB8878, 0x2E85480B, 0x8BC4DA75, 
-    0xB7C7FD53, 0x12866F2D, 0xF8A8AF5E, 0x5DE93D20, 
-    0x29195949, 0x8C58CB37, 0x66760B44, 0xC337993A, 
-    0x8F96C396, 0x2AD751E8, 0xC0F9919B, 0x65B803E5, 
-    0x1148678C, 0xB409F5F2, 0x5E273581, 0xFB66A7FF, 
-    0x26217BCD, 0x8360E9B3, 0x694E29C0, 0xCC0FBBBE, 
-    0xB8FFDFD7, 0x1DBE4DA9, 0xF7908DDA, 0x52D11FA4, 
-    0x1E704508, 0xBB31D776, 0x511F1705, 0xF45E857B, 
-    0x80AEE112, 0x25EF736C, 0xCFC1B31F, 0x6A802161, 
-    0x56830647, 0xF3C29439, 0x19EC544A, 0xBCADC634, 
-    0xC85DA25D, 0x6D1C3023, 0x8732F050, 0x2273622E, 
-    0x6ED23882, 0xCB93AAFC, 0x21BD6A8F, 0x84FCF8F1, 
-    0xF00C9C98, 0x554D0EE6, 0xBF63CE95, 0x1A225CEB, 
-    0x8B277743, 0x2E66E53D, 0xC448254E, 0x6109B730, 
-    0x15F9D359, 0xB0B84127, 0x5A968154, 0xFFD7132A, 
-    0xB3764986, 0x1637DBF8, 0xFC191B8B, 0x595889F5, 
-    0x2DA8ED9C, 0x88E97FE2, 0x62C7BF91, 0xC7862DEF, 
-    0xFB850AC9, 0x5EC498B7, 0xB4EA58C4, 0x11ABCABA, 
-    0x655BAED3, 0xC01A3CAD, 0x2A34FCDE, 0x8F756EA0, 
-    0xC3D4340C, 0x6695A672, 0x8CBB6601, 0x29FAF47F, 
-    0x5D0A9016, 0xF84B0268, 0x1265C21B, 0xB7245065, 
-    0x6A638C57, 0xCF221E29, 0x250CDE5A, 0x804D4C24, 
-    0xF4BD284D, 0x51FCBA33, 0xBBD27A40, 0x1E93E83E, 
-    0x5232B292, 0xF77320EC, 0x1D5DE09F, 0xB81C72E1, 
-    0xCCEC1688, 0x69AD84F6, 0x83834485, 0x26C2D6FB, 
-    0x1AC1F1DD, 0xBF8063A3, 0x55AEA3D0, 0xF0EF31AE, 
-    0x841F55C7, 0x215EC7B9, 0xCB7007CA, 0x6E3195B4, 
-    0x2290CF18, 0x87D15D66, 0x6DFF9D15, 0xC8BE0F6B, 
-    0xBC4E6B02, 0x190FF97C, 0xF321390F, 0x5660AB71, 
-    0x4C42F79A, 0xE90365E4, 0x032DA597, 0xA66C37E9, 
-    0xD29C5380, 0x77DDC1FE, 0x9DF3018D, 0x38B293F3, 
-    0x7413C95F, 0xD1525B21, 0x3B7C9B52, 0x9E3D092C, 
-    0xEACD6D45, 0x4F8CFF3B, 0xA5A23F48, 0x00E3AD36, 
-    0x3CE08A10, 0x99A1186E, 0x738FD81D, 0xD6CE4A63, 
-    0xA23E2E0A, 0x077FBC74, 0xED517C07, 0x4810EE79, 
-    0x04B1B4D5, 0xA1F026AB, 0x4BDEE6D8, 0xEE9F74A6, 
-    0x9A6F10CF, 0x3F2E82B1, 0xD50042C2, 0x7041D0BC, 
-    0xAD060C8E, 0x08479EF0, 0xE2695E83, 0x4728CCFD, 
-    0x33D8A894, 0x96993AEA, 0x7CB7FA99, 0xD9F668E7, 
-    0x9557324B, 0x3016A035, 0xDA386046, 0x7F79F238, 
-    0x0B899651, 0xAEC8042F, 0x44E6C45C, 0xE1A75622, 
-    0xDDA47104, 0x78E5E37A, 0x92CB2309, 0x378AB177, 
-    0x437AD51E, 0xE63B4760, 0x0C158713, 0xA954156D, 
-    0xE5F54FC1, 0x40B4DDBF, 0xAA9A1DCC, 0x0FDB8FB2, 
-    0x7B2BEBDB, 0xDE6A79A5, 0x3444B9D6, 0x91052BA8, 
-    /* T8_3 */
-    0x00000000, 0xDD45AAB8, 0xBF672381, 0x62228939, 
-    0x7B2231F3, 0xA6679B4B, 0xC4451272, 0x1900B8CA, 
-    0xF64463E6, 0x2B01C95E, 0x49234067, 0x9466EADF, 
-    0x8D665215, 0x5023F8AD, 0x32017194, 0xEF44DB2C, 
-    0xE964B13D, 0x34211B85, 0x560392BC, 0x8B463804, 
-    0x924680CE, 0x4F032A76, 0x2D21A34F, 0xF06409F7, 
-    0x1F20D2DB, 0xC2657863, 0xA047F15A, 0x7D025BE2, 
-    0x6402E328, 0xB9474990, 0xDB65C0A9, 0x06206A11, 
-    0xD725148B, 0x0A60BE33, 0x6842370A, 0xB5079DB2, 
-    0xAC072578, 0x71428FC0, 0x136006F9, 0xCE25AC41, 
-    0x2161776D, 0xFC24DDD5, 0x9E0654EC, 0x4343FE54, 
-    0x5A43469E, 0x8706EC26, 0xE524651F, 0x3861CFA7, 
-    0x3E41A5B6, 0xE3040F0E, 0x81268637, 0x5C632C8F, 
-    0x45639445, 0x98263EFD, 0xFA04B7C4, 0x27411D7C, 
-    0xC805C650, 0x15406CE8, 0x7762E5D1, 0xAA274F69, 
-    0xB327F7A3, 0x6E625D1B, 0x0C40D422, 0xD1057E9A, 
-    0xABA65FE7, 0x76E3F55F, 0x14C17C66, 0xC984D6DE, 
-    0xD0846E14, 0x0DC1C4AC, 0x6FE34D95, 0xB2A6E72D, 
-    0x5DE23C01, 0x80A796B9, 0xE2851F80, 0x3FC0B538, 
-    0x26C00DF2, 0xFB85A74A, 0x99A72E73, 0x44E284CB, 
-    0x42C2EEDA, 0x9F874462, 0xFDA5CD5B, 0x20E067E3, 
-    0x39E0DF29, 0xE4A57591, 0x8687FCA8, 0x5BC25610, 
-    0xB4868D3C, 0x69C32784, 0x0BE1AEBD, 0xD6A40405, 
-    0xCFA4BCCF, 0x12E11677, 0x70C39F4E, 0xAD8635F6, 
-    0x7C834B6C, 0xA1C6E1D4, 0xC3E468ED, 0x1EA1C255, 
-    0x07A17A9F, 0xDAE4D027, 0xB8C6591E, 0x6583F3A6, 
-    0x8AC7288A, 0x57828232, 0x35A00B0B, 0xE8E5A1B3, 
-    0xF1E51979, 0x2CA0B3C1, 0x4E823AF8, 0x93C79040, 
-    0x95E7FA51, 0x48A250E9, 0x2A80D9D0, 0xF7C57368, 
-    0xEEC5CBA2, 0x3380611A, 0x51A2E823, 0x8CE7429B, 
-    0x63A399B7, 0xBEE6330F, 0xDCC4BA36, 0x0181108E, 
-    0x1881A844, 0xC5C402FC, 0xA7E68BC5, 0x7AA3217D, 
-    0x52A0C93F, 0x8FE56387, 0xEDC7EABE, 0x30824006, 
-    0x2982F8CC, 0xF4C75274, 0x96E5DB4D, 0x4BA071F5, 
-    0xA4E4AAD9, 0x79A10061, 0x1B838958, 0xC6C623E0, 
-    0xDFC69B2A, 0x02833192, 0x60A1B8AB, 0xBDE41213, 
-    0xBBC47802, 0x6681D2BA, 0x04A35B83, 0xD9E6F13B, 
-    0xC0E649F1, 0x1DA3E349, 0x7F816A70, 0xA2C4C0C8, 
-    0x4D801BE4, 0x90C5B15C, 0xF2E73865, 0x2FA292DD, 
-    0x36A22A17, 0xEBE780AF, 0x89C50996, 0x5480A32E, 
-    0x8585DDB4, 0x58C0770C, 0x3AE2FE35, 0xE7A7548D, 
-    0xFEA7EC47, 0x23E246FF, 0x41C0CFC6, 0x9C85657E, 
-    0x73C1BE52, 0xAE8414EA, 0xCCA69DD3, 0x11E3376B, 
-    0x08E38FA1, 0xD5A62519, 0xB784AC20, 0x6AC10698, 
-    0x6CE16C89, 0xB1A4C631, 0xD3864F08, 0x0EC3E5B0, 
-    0x17C35D7A, 0xCA86F7C2, 0xA8A47EFB, 0x75E1D443, 
-    0x9AA50F6F, 0x47E0A5D7, 0x25C22CEE, 0xF8878656, 
-    0xE1873E9C, 0x3CC29424, 0x5EE01D1D, 0x83A5B7A5, 
-    0xF90696D8, 0x24433C60, 0x4661B559, 0x9B241FE1, 
-    0x8224A72B, 0x5F610D93, 0x3D4384AA, 0xE0062E12, 
-    0x0F42F53E, 0xD2075F86, 0xB025D6BF, 0x6D607C07, 
-    0x7460C4CD, 0xA9256E75, 0xCB07E74C, 0x16424DF4, 
-    0x106227E5, 0xCD278D5D, 0xAF050464, 0x7240AEDC, 
-    0x6B401616, 0xB605BCAE, 0xD4273597, 0x09629F2F, 
-    0xE6264403, 0x3B63EEBB, 0x59416782, 0x8404CD3A, 
-    0x9D0475F0, 0x4041DF48, 0x22635671, 0xFF26FCC9, 
-    0x2E238253, 0xF36628EB, 0x9144A1D2, 0x4C010B6A, 
-    0x5501B3A0, 0x88441918, 0xEA669021, 0x37233A99, 
-    0xD867E1B5, 0x05224B0D, 0x6700C234, 0xBA45688C, 
-    0xA345D046, 0x7E007AFE, 0x1C22F3C7, 0xC167597F, 
-    0xC747336E, 0x1A0299D6, 0x782010EF, 0xA565BA57, 
-    0xBC65029D, 0x6120A825, 0x0302211C, 0xDE478BA4, 
-    0x31035088, 0xEC46FA30, 0x8E647309, 0x5321D9B1, 
-    0x4A21617B, 0x9764CBC3, 0xF54642FA, 0x2803E842, 
-    /* T8_4 */
-    0x00000000, 0x38116FAC, 0x7022DF58, 0x4833B0F4, 
-    0xE045BEB0, 0xD854D11C, 0x906761E8, 0xA8760E44, 
-    0xC5670B91, 0xFD76643D, 0xB545D4C9, 0x8D54BB65, 
-    0x2522B521, 0x1D33DA8D, 0x55006A79, 0x6D1105D5, 
-    0x8F2261D3, 0xB7330E7F, 0xFF00BE8B, 0xC711D127, 
-    0x6F67DF63, 0x5776B0CF, 0x1F45003B, 0x27546F97, 
-    0x4A456A42, 0x725405EE, 0x3A67B51A, 0x0276DAB6, 
-    0xAA00D4F2, 0x9211BB5E, 0xDA220BAA, 0xE2336406, 
-    0x1BA8B557, 0x23B9DAFB, 0x6B8A6A0F, 0x539B05A3, 
-    0xFBED0BE7, 0xC3FC644B, 0x8BCFD4BF, 0xB3DEBB13, 
-    0xDECFBEC6, 0xE6DED16A, 0xAEED619E, 0x96FC0E32, 
-    0x3E8A0076, 0x069B6FDA, 0x4EA8DF2E, 0x76B9B082, 
-    0x948AD484, 0xAC9BBB28, 0xE4A80BDC, 0xDCB96470, 
-    0x74CF6A34, 0x4CDE0598, 0x04EDB56C, 0x3CFCDAC0, 
-    0x51EDDF15, 0x69FCB0B9, 0x21CF004D, 0x19DE6FE1, 
-    0xB1A861A5, 0x89B90E09, 0xC18ABEFD, 0xF99BD151, 
-    0x37516AAE, 0x0F400502, 0x4773B5F6, 0x7F62DA5A, 
-    0xD714D41E, 0xEF05BBB2, 0xA7360B46, 0x9F2764EA, 
-    0xF236613F, 0xCA270E93, 0x8214BE67, 0xBA05D1CB, 
-    0x1273DF8F, 0x2A62B023, 0x625100D7, 0x5A406F7B, 
-    0xB8730B7D, 0x806264D1, 0xC851D425, 0xF040BB89, 
-    0x5836B5CD, 0x6027DA61, 0x28146A95, 0x10050539, 
-    0x7D1400EC, 0x45056F40, 0x0D36DFB4, 0x3527B018, 
-    0x9D51BE5C, 0xA540D1F0, 0xED736104, 0xD5620EA8, 
-    0x2CF9DFF9, 0x14E8B055, 0x5CDB00A1, 0x64CA6F0D, 
-    0xCCBC6149, 0xF4AD0EE5, 0xBC9EBE11, 0x848FD1BD, 
-    0xE99ED468, 0xD18FBBC4, 0x99BC0B30, 0xA1AD649C, 
-    0x09DB6AD8, 0x31CA0574, 0x79F9B580, 0x41E8DA2C, 
-    0xA3DBBE2A, 0x9BCAD186, 0xD3F96172, 0xEBE80EDE, 
-    0x439E009A, 0x7B8F6F36, 0x33BCDFC2, 0x0BADB06E, 
-    0x66BCB5BB, 0x5EADDA17, 0x169E6AE3, 0x2E8F054F, 
-    0x86F90B0B, 0xBEE864A7, 0xF6DBD453, 0xCECABBFF, 
-    0x6EA2D55C, 0x56B3BAF0, 0x1E800A04, 0x269165A8, 
-    0x8EE76BEC, 0xB6F60440, 0xFEC5B4B4, 0xC6D4DB18, 
-    0xABC5DECD, 0x93D4B161, 0xDBE70195, 0xE3F66E39, 
-    0x4B80607D, 0x73910FD1, 0x3BA2BF25, 0x03B3D089, 
-    0xE180B48F, 0xD991DB23, 0x91A26BD7, 0xA9B3047B, 
-    0x01C50A3F, 0x39D46593, 0x71E7D567, 0x49F6BACB, 
-    0x24E7BF1E, 0x1CF6D0B2, 0x54C56046, 0x6CD40FEA, 
-    0xC4A201AE, 0xFCB36E02, 0xB480DEF6, 0x8C91B15A, 
-    0x750A600B, 0x4D1B0FA7, 0x0528BF53, 0x3D39D0FF, 
-    0x954FDEBB, 0xAD5EB117, 0xE56D01E3, 0xDD7C6E4F, 
-    0xB06D6B9A, 0x887C0436, 0xC04FB4C2, 0xF85EDB6E, 
-    0x5028D52A, 0x6839BA86, 0x200A0A72, 0x181B65DE, 
-    0xFA2801D8, 0xC2396E74, 0x8A0ADE80, 0xB21BB12C, 
-    0x1A6DBF68, 0x227CD0C4, 0x6A4F6030, 0x525E0F9C, 
-    0x3F4F0A49, 0x075E65E5, 0x4F6DD511, 0x777CBABD, 
-    0xDF0AB4F9, 0xE71BDB55, 0xAF286BA1, 0x9739040D, 
-    0x59F3BFF2, 0x61E2D05E, 0x29D160AA, 0x11C00F06, 
-    0xB9B60142, 0x81A76EEE, 0xC994DE1A, 0xF185B1B6, 
-    0x9C94B463, 0xA485DBCF, 0xECB66B3B, 0xD4A70497, 
-    0x7CD10AD3, 0x44C0657F, 0x0CF3D58B, 0x34E2BA27, 
-    0xD6D1DE21, 0xEEC0B18D, 0xA6F30179, 0x9EE26ED5, 
-    0x36946091, 0x0E850F3D, 0x46B6BFC9, 0x7EA7D065, 
-    0x13B6D5B0, 0x2BA7BA1C, 0x63940AE8, 0x5B856544, 
-    0xF3F36B00, 0xCBE204AC, 0x83D1B458, 0xBBC0DBF4, 
-    0x425B0AA5, 0x7A4A6509, 0x3279D5FD, 0x0A68BA51, 
-    0xA21EB415, 0x9A0FDBB9, 0xD23C6B4D, 0xEA2D04E1, 
-    0x873C0134, 0xBF2D6E98, 0xF71EDE6C, 0xCF0FB1C0, 
-    0x6779BF84, 0x5F68D028, 0x175B60DC, 0x2F4A0F70, 
-    0xCD796B76, 0xF56804DA, 0xBD5BB42E, 0x854ADB82, 
-    0x2D3CD5C6, 0x152DBA6A, 0x5D1E0A9E, 0x650F6532, 
-    0x081E60E7, 0x300F0F4B, 0x783CBFBF, 0x402DD013, 
-    0xE85BDE57, 0xD04AB1FB, 0x9879010F, 0xA0686EA3, 
-    /* T8_5 */
-    0x00000000, 0xEF306B19, 0xDB8CA0C3, 0x34BCCBDA, 
-    0xB2F53777, 0x5DC55C6E, 0x697997B4, 0x8649FCAD, 
-    0x6006181F, 0x8F367306, 0xBB8AB8DC, 0x54BAD3C5, 
-    0xD2F32F68, 0x3DC34471, 0x097F8FAB, 0xE64FE4B2, 
-    0xC00C303E, 0x2F3C5B27, 0x1B8090FD, 0xF4B0FBE4, 
-    0x72F90749, 0x9DC96C50, 0xA975A78A, 0x4645CC93, 
-    0xA00A2821, 0x4F3A4338, 0x7B8688E2, 0x94B6E3FB, 
-    0x12FF1F56, 0xFDCF744F, 0xC973BF95, 0x2643D48C, 
-    0x85F4168D, 0x6AC47D94, 0x5E78B64E, 0xB148DD57, 
-    0x370121FA, 0xD8314AE3, 0xEC8D8139, 0x03BDEA20, 
-    0xE5F20E92, 0x0AC2658B, 0x3E7EAE51, 0xD14EC548, 
-    0x570739E5, 0xB83752FC, 0x8C8B9926, 0x63BBF23F, 
-    0x45F826B3, 0xAAC84DAA, 0x9E748670, 0x7144ED69, 
-    0xF70D11C4, 0x183D7ADD, 0x2C81B107, 0xC3B1DA1E, 
-    0x25FE3EAC, 0xCACE55B5, 0xFE729E6F, 0x1142F576, 
-    0x970B09DB, 0x783B62C2, 0x4C87A918, 0xA3B7C201, 
-    0x0E045BEB, 0xE13430F2, 0xD588FB28, 0x3AB89031, 
-    0xBCF16C9C, 0x53C10785, 0x677DCC5F, 0x884DA746, 
-    0x6E0243F4, 0x813228ED, 0xB58EE337, 0x5ABE882E, 
-    0xDCF77483, 0x33C71F9A, 0x077BD440, 0xE84BBF59, 
-    0xCE086BD5, 0x213800CC, 0x1584CB16, 0xFAB4A00F, 
-    0x7CFD5CA2, 0x93CD37BB, 0xA771FC61, 0x48419778, 
-    0xAE0E73CA, 0x413E18D3, 0x7582D309, 0x9AB2B810, 
-    0x1CFB44BD, 0xF3CB2FA4, 0xC777E47E, 0x28478F67, 
-    0x8BF04D66, 0x64C0267F, 0x507CEDA5, 0xBF4C86BC, 
-    0x39057A11, 0xD6351108, 0xE289DAD2, 0x0DB9B1CB, 
-    0xEBF65579, 0x04C63E60, 0x307AF5BA, 0xDF4A9EA3, 
-    0x5903620E, 0xB6330917, 0x828FC2CD, 0x6DBFA9D4, 
-    0x4BFC7D58, 0xA4CC1641, 0x9070DD9B, 0x7F40B682, 
-    0xF9094A2F, 0x16392136, 0x2285EAEC, 0xCDB581F5, 
-    0x2BFA6547, 0xC4CA0E5E, 0xF076C584, 0x1F46AE9D, 
-    0x990F5230, 0x763F3929, 0x4283F2F3, 0xADB399EA, 
-    0x1C08B7D6, 0xF338DCCF, 0xC7841715, 0x28B47C0C, 
-    0xAEFD80A1, 0x41CDEBB8, 0x75712062, 0x9A414B7B, 
-    0x7C0EAFC9, 0x933EC4D0, 0xA7820F0A, 0x48B26413, 
-    0xCEFB98BE, 0x21CBF3A7, 0x1577387D, 0xFA475364, 
-    0xDC0487E8, 0x3334ECF1, 0x0788272B, 0xE8B84C32, 
-    0x6EF1B09F, 0x81C1DB86, 0xB57D105C, 0x5A4D7B45, 
-    0xBC029FF7, 0x5332F4EE, 0x678E3F34, 0x88BE542D, 
-    0x0EF7A880, 0xE1C7C399, 0xD57B0843, 0x3A4B635A, 
-    0x99FCA15B, 0x76CCCA42, 0x42700198, 0xAD406A81, 
-    0x2B09962C, 0xC439FD35, 0xF08536EF, 0x1FB55DF6, 
-    0xF9FAB944, 0x16CAD25D, 0x22761987, 0xCD46729E, 
-    0x4B0F8E33, 0xA43FE52A, 0x90832EF0, 0x7FB345E9, 
-    0x59F09165, 0xB6C0FA7C, 0x827C31A6, 0x6D4C5ABF, 
-    0xEB05A612, 0x0435CD0B, 0x308906D1, 0xDFB96DC8, 
-    0x39F6897A, 0xD6C6E263, 0xE27A29B9, 0x0D4A42A0, 
-    0x8B03BE0D, 0x6433D514, 0x508F1ECE, 0xBFBF75D7, 
-    0x120CEC3D, 0xFD3C8724, 0xC9804CFE, 0x26B027E7, 
-    0xA0F9DB4A, 0x4FC9B053, 0x7B757B89, 0x94451090, 
-    0x720AF422, 0x9D3A9F3B, 0xA98654E1, 0x46B63FF8, 
-    0xC0FFC355, 0x2FCFA84C, 0x1B736396, 0xF443088F, 
-    0xD200DC03, 0x3D30B71A, 0x098C7CC0, 0xE6BC17D9, 
-    0x60F5EB74, 0x8FC5806D, 0xBB794BB7, 0x544920AE, 
-    0xB206C41C, 0x5D36AF05, 0x698A64DF, 0x86BA0FC6, 
-    0x00F3F36B, 0xEFC39872, 0xDB7F53A8, 0x344F38B1, 
-    0x97F8FAB0, 0x78C891A9, 0x4C745A73, 0xA344316A, 
-    0x250DCDC7, 0xCA3DA6DE, 0xFE816D04, 0x11B1061D, 
-    0xF7FEE2AF, 0x18CE89B6, 0x2C72426C, 0xC3422975, 
-    0x450BD5D8, 0xAA3BBEC1, 0x9E87751B, 0x71B71E02, 
-    0x57F4CA8E, 0xB8C4A197, 0x8C786A4D, 0x63480154, 
-    0xE501FDF9, 0x0A3196E0, 0x3E8D5D3A, 0xD1BD3623, 
-    0x37F2D291, 0xD8C2B988, 0xEC7E7252, 0x034E194B, 
-    0x8507E5E6, 0x6A378EFF, 0x5E8B4525, 0xB1BB2E3C, 
-    /* T8_6 */
-    0x00000000, 0x68032CC8, 0xD0065990, 0xB8057558, 
-    0xA5E0C5D1, 0xCDE3E919, 0x75E69C41, 0x1DE5B089, 
-    0x4E2DFD53, 0x262ED19B, 0x9E2BA4C3, 0xF628880B, 
-    0xEBCD3882, 0x83CE144A, 0x3BCB6112, 0x53C84DDA, 
-    0x9C5BFAA6, 0xF458D66E, 0x4C5DA336, 0x245E8FFE, 
-    0x39BB3F77, 0x51B813BF, 0xE9BD66E7, 0x81BE4A2F, 
-    0xD27607F5, 0xBA752B3D, 0x02705E65, 0x6A7372AD, 
-    0x7796C224, 0x1F95EEEC, 0xA7909BB4, 0xCF93B77C, 
-    0x3D5B83BD, 0x5558AF75, 0xED5DDA2D, 0x855EF6E5, 
-    0x98BB466C, 0xF0B86AA4, 0x48BD1FFC, 0x20BE3334, 
-    0x73767EEE, 0x1B755226, 0xA370277E, 0xCB730BB6, 
-    0xD696BB3F, 0xBE9597F7, 0x0690E2AF, 0x6E93CE67, 
-    0xA100791B, 0xC90355D3, 0x7106208B, 0x19050C43, 
-    0x04E0BCCA, 0x6CE39002, 0xD4E6E55A, 0xBCE5C992, 
-    0xEF2D8448, 0x872EA880, 0x3F2BDDD8, 0x5728F110, 
-    0x4ACD4199, 0x22CE6D51, 0x9ACB1809, 0xF2C834C1, 
-    0x7AB7077A, 0x12B42BB2, 0xAAB15EEA, 0xC2B27222, 
-    0xDF57C2AB, 0xB754EE63, 0x0F519B3B, 0x6752B7F3, 
-    0x349AFA29, 0x5C99D6E1, 0xE49CA3B9, 0x8C9F8F71, 
-    0x917A3FF8, 0xF9791330, 0x417C6668, 0x297F4AA0, 
-    0xE6ECFDDC, 0x8EEFD114, 0x36EAA44C, 0x5EE98884, 
-    0x430C380D, 0x2B0F14C5, 0x930A619D, 0xFB094D55, 
-    0xA8C1008F, 0xC0C22C47, 0x78C7591F, 0x10C475D7, 
-    0x0D21C55E, 0x6522E996, 0xDD279CCE, 0xB524B006, 
-    0x47EC84C7, 0x2FEFA80F, 0x97EADD57, 0xFFE9F19F, 
-    0xE20C4116, 0x8A0F6DDE, 0x320A1886, 0x5A09344E, 
-    0x09C17994, 0x61C2555C, 0xD9C72004, 0xB1C40CCC, 
-    0xAC21BC45, 0xC422908D, 0x7C27E5D5, 0x1424C91D, 
-    0xDBB77E61, 0xB3B452A9, 0x0BB127F1, 0x63B20B39, 
-    0x7E57BBB0, 0x16549778, 0xAE51E220, 0xC652CEE8, 
-    0x959A8332, 0xFD99AFFA, 0x459CDAA2, 0x2D9FF66A, 
-    0x307A46E3, 0x58796A2B, 0xE07C1F73, 0x887F33BB, 
-    0xF56E0EF4, 0x9D6D223C, 0x25685764, 0x4D6B7BAC, 
-    0x508ECB25, 0x388DE7ED, 0x808892B5, 0xE88BBE7D, 
-    0xBB43F3A7, 0xD340DF6F, 0x6B45AA37, 0x034686FF, 
-    0x1EA33676, 0x76A01ABE, 0xCEA56FE6, 0xA6A6432E, 
-    0x6935F452, 0x0136D89A, 0xB933ADC2, 0xD130810A, 
-    0xCCD53183, 0xA4D61D4B, 0x1CD36813, 0x74D044DB, 
-    0x27180901, 0x4F1B25C9, 0xF71E5091, 0x9F1D7C59, 
-    0x82F8CCD0, 0xEAFBE018, 0x52FE9540, 0x3AFDB988, 
-    0xC8358D49, 0xA036A181, 0x1833D4D9, 0x7030F811, 
-    0x6DD54898, 0x05D66450, 0xBDD31108, 0xD5D03DC0, 
-    0x8618701A, 0xEE1B5CD2, 0x561E298A, 0x3E1D0542, 
-    0x23F8B5CB, 0x4BFB9903, 0xF3FEEC5B, 0x9BFDC093, 
-    0x546E77EF, 0x3C6D5B27, 0x84682E7F, 0xEC6B02B7, 
-    0xF18EB23E, 0x998D9EF6, 0x2188EBAE, 0x498BC766, 
-    0x1A438ABC, 0x7240A674, 0xCA45D32C, 0xA246FFE4, 
-    0xBFA34F6D, 0xD7A063A5, 0x6FA516FD, 0x07A63A35, 
-    0x8FD9098E, 0xE7DA2546, 0x5FDF501E, 0x37DC7CD6, 
-    0x2A39CC5F, 0x423AE097, 0xFA3F95CF, 0x923CB907, 
-    0xC1F4F4DD, 0xA9F7D815, 0x11F2AD4D, 0x79F18185, 
-    0x6414310C, 0x0C171DC4, 0xB412689C, 0xDC114454, 
-    0x1382F328, 0x7B81DFE0, 0xC384AAB8, 0xAB878670, 
-    0xB66236F9, 0xDE611A31, 0x66646F69, 0x0E6743A1, 
-    0x5DAF0E7B, 0x35AC22B3, 0x8DA957EB, 0xE5AA7B23, 
-    0xF84FCBAA, 0x904CE762, 0x2849923A, 0x404ABEF2, 
-    0xB2828A33, 0xDA81A6FB, 0x6284D3A3, 0x0A87FF6B, 
-    0x17624FE2, 0x7F61632A, 0xC7641672, 0xAF673ABA, 
-    0xFCAF7760, 0x94AC5BA8, 0x2CA92EF0, 0x44AA0238, 
-    0x594FB2B1, 0x314C9E79, 0x8949EB21, 0xE14AC7E9, 
-    0x2ED97095, 0x46DA5C5D, 0xFEDF2905, 0x96DC05CD, 
-    0x8B39B544, 0xE33A998C, 0x5B3FECD4, 0x333CC01C, 
-    0x60F48DC6, 0x08F7A10E, 0xB0F2D456, 0xD8F1F89E, 
-    0xC5144817, 0xAD1764DF, 0x15121187, 0x7D113D4F, 
-    /* T8_7 */
-    0x00000000, 0x493C7D27, 0x9278FA4E, 0xDB448769, 
-    0x211D826D, 0x6821FF4A, 0xB3657823, 0xFA590504, 
-    0x423B04DA, 0x0B0779FD, 0xD043FE94, 0x997F83B3, 
-    0x632686B7, 0x2A1AFB90, 0xF15E7CF9, 0xB86201DE, 
-    0x847609B4, 0xCD4A7493, 0x160EF3FA, 0x5F328EDD, 
-    0xA56B8BD9, 0xEC57F6FE, 0x37137197, 0x7E2F0CB0, 
-    0xC64D0D6E, 0x8F717049, 0x5435F720, 0x1D098A07, 
-    0xE7508F03, 0xAE6CF224, 0x7528754D, 0x3C14086A, 
-    0x0D006599, 0x443C18BE, 0x9F789FD7, 0xD644E2F0, 
-    0x2C1DE7F4, 0x65219AD3, 0xBE651DBA, 0xF759609D, 
-    0x4F3B6143, 0x06071C64, 0xDD439B0D, 0x947FE62A, 
-    0x6E26E32E, 0x271A9E09, 0xFC5E1960, 0xB5626447, 
-    0x89766C2D, 0xC04A110A, 0x1B0E9663, 0x5232EB44, 
-    0xA86BEE40, 0xE1579367, 0x3A13140E, 0x732F6929, 
-    0xCB4D68F7, 0x827115D0, 0x593592B9, 0x1009EF9E, 
-    0xEA50EA9A, 0xA36C97BD, 0x782810D4, 0x31146DF3, 
-    0x1A00CB32, 0x533CB615, 0x8878317C, 0xC1444C5B, 
-    0x3B1D495F, 0x72213478, 0xA965B311, 0xE059CE36, 
-    0x583BCFE8, 0x1107B2CF, 0xCA4335A6, 0x837F4881, 
-    0x79264D85, 0x301A30A2, 0xEB5EB7CB, 0xA262CAEC, 
-    0x9E76C286, 0xD74ABFA1, 0x0C0E38C8, 0x453245EF, 
-    0xBF6B40EB, 0xF6573DCC, 0x2D13BAA5, 0x642FC782, 
-    0xDC4DC65C, 0x9571BB7B, 0x4E353C12, 0x07094135, 
-    0xFD504431, 0xB46C3916, 0x6F28BE7F, 0x2614C358, 
-    0x1700AEAB, 0x5E3CD38C, 0x857854E5, 0xCC4429C2, 
-    0x361D2CC6, 0x7F2151E1, 0xA465D688, 0xED59ABAF, 
-    0x553BAA71, 0x1C07D756, 0xC743503F, 0x8E7F2D18, 
-    0x7426281C, 0x3D1A553B, 0xE65ED252, 0xAF62AF75, 
-    0x9376A71F, 0xDA4ADA38, 0x010E5D51, 0x48322076, 
-    0xB26B2572, 0xFB575855, 0x2013DF3C, 0x692FA21B, 
-    0xD14DA3C5, 0x9871DEE2, 0x4335598B, 0x0A0924AC, 
-    0xF05021A8, 0xB96C5C8F, 0x6228DBE6, 0x2B14A6C1, 
-    0x34019664, 0x7D3DEB43, 0xA6796C2A, 0xEF45110D, 
-    0x151C1409, 0x5C20692E, 0x8764EE47, 0xCE589360, 
-    0x763A92BE, 0x3F06EF99, 0xE44268F0, 0xAD7E15D7, 
-    0x572710D3, 0x1E1B6DF4, 0xC55FEA9D, 0x8C6397BA, 
-    0xB0779FD0, 0xF94BE2F7, 0x220F659E, 0x6B3318B9, 
-    0x916A1DBD, 0xD856609A, 0x0312E7F3, 0x4A2E9AD4, 
-    0xF24C9B0A, 0xBB70E62D, 0x60346144, 0x29081C63, 
-    0xD3511967, 0x9A6D6440, 0x4129E329, 0x08159E0E, 
-    0x3901F3FD, 0x703D8EDA, 0xAB7909B3, 0xE2457494, 
-    0x181C7190, 0x51200CB7, 0x8A648BDE, 0xC358F6F9, 
-    0x7B3AF727, 0x32068A00, 0xE9420D69, 0xA07E704E, 
-    0x5A27754A, 0x131B086D, 0xC85F8F04, 0x8163F223, 
-    0xBD77FA49, 0xF44B876E, 0x2F0F0007, 0x66337D20, 
-    0x9C6A7824, 0xD5560503, 0x0E12826A, 0x472EFF4D, 
-    0xFF4CFE93, 0xB67083B4, 0x6D3404DD, 0x240879FA, 
-    0xDE517CFE, 0x976D01D9, 0x4C2986B0, 0x0515FB97, 
-    0x2E015D56, 0x673D2071, 0xBC79A718, 0xF545DA3F, 
-    0x0F1CDF3B, 0x4620A21C, 0x9D642575, 0xD4585852, 
-    0x6C3A598C, 0x250624AB, 0xFE42A3C2, 0xB77EDEE5, 
-    0x4D27DBE1, 0x041BA6C6, 0xDF5F21AF, 0x96635C88, 
-    0xAA7754E2, 0xE34B29C5, 0x380FAEAC, 0x7133D38B, 
-    0x8B6AD68F, 0xC256ABA8, 0x19122CC1, 0x502E51E6, 
-    0xE84C5038, 0xA1702D1F, 0x7A34AA76, 0x3308D751, 
-    0xC951D255, 0x806DAF72, 0x5B29281B, 0x1215553C, 
-    0x230138CF, 0x6A3D45E8, 0xB179C281, 0xF845BFA6, 
-    0x021CBAA2, 0x4B20C785, 0x906440EC, 0xD9583DCB, 
-    0x613A3C15, 0x28064132, 0xF342C65B, 0xBA7EBB7C, 
-    0x4027BE78, 0x091BC35F, 0xD25F4436, 0x9B633911, 
-    0xA777317B, 0xEE4B4C5C, 0x350FCB35, 0x7C33B612, 
-    0x866AB316, 0xCF56CE31, 0x14124958, 0x5D2E347F, 
-    0xE54C35A1, 0xAC704886, 0x7734CFEF, 0x3E08B2C8, 
-    0xC451B7CC, 0x8D6DCAEB, 0x56294D82, 0x1F1530A5 
-  };
-}

http://git-wip-us.apache.org/repos/asf/incubator-ratis/blob/7e71a2e0/raft-common/src/main/java/org/apache/raft/util/RaftUtils.java
----------------------------------------------------------------------
diff --git a/raft-common/src/main/java/org/apache/raft/util/RaftUtils.java 
b/raft-common/src/main/java/org/apache/raft/util/RaftUtils.java
deleted file mode 100644
index af76ad9..0000000
--- a/raft-common/src/main/java/org/apache/raft/util/RaftUtils.java
+++ /dev/null
@@ -1,240 +0,0 @@
-/**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.apache.raft.util;
-
-import com.google.common.base.Preconditions;
-import org.apache.log4j.Level;
-import org.apache.log4j.LogManager;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-import java.io.*;
-import java.lang.reflect.Constructor;
-import java.nio.ByteBuffer;
-import java.nio.channels.FileChannel;
-import java.util.Map;
-import java.util.concurrent.ConcurrentHashMap;
-import java.util.concurrent.ExecutionException;
-import java.util.concurrent.ThreadLocalRandom;
-
-public abstract class RaftUtils {
-  public static final Logger LOG = LoggerFactory.getLogger(RaftUtils.class);
-  private static final Class<?>[] EMPTY_CLASS_ARRAY = {};
-
-  // OSType detection
-  public enum OSType {
-    OS_TYPE_LINUX,
-    OS_TYPE_WIN,
-    OS_TYPE_SOLARIS,
-    OS_TYPE_MAC,
-    OS_TYPE_FREEBSD,
-    OS_TYPE_OTHER
-  }
-
-  /**
-   * Get the type of the operating system, as determined from parsing
-   * the <code>os.name</code> property.
-   */
-  private static final OSType osType = getOSType();
-
-  private static OSType getOSType() {
-    String osName = System.getProperty("os.name");
-    if (osName.startsWith("Windows")) {
-      return OSType.OS_TYPE_WIN;
-    } else if (osName.contains("SunOS") || osName.contains("Solaris")) {
-      return OSType.OS_TYPE_SOLARIS;
-    } else if (osName.contains("Mac")) {
-      return OSType.OS_TYPE_MAC;
-    } else if (osName.contains("FreeBSD")) {
-      return OSType.OS_TYPE_FREEBSD;
-    } else if (osName.startsWith("Linux")) {
-      return OSType.OS_TYPE_LINUX;
-    } else {
-      // Some other form of Unix
-      return OSType.OS_TYPE_OTHER;
-    }
-  }
-
-  // Helper static vars for each platform
-  public static final boolean WINDOWS = (osType == OSType.OS_TYPE_WIN);
-  public static final boolean SOLARIS = (osType == OSType.OS_TYPE_SOLARIS);
-  public static final boolean MAC     = (osType == OSType.OS_TYPE_MAC);
-  public static final boolean FREEBSD = (osType == OSType.OS_TYPE_FREEBSD);
-  public static final boolean LINUX   = (osType == OSType.OS_TYPE_LINUX);
-  public static final boolean OTHER   = (osType == OSType.OS_TYPE_OTHER);
-
-  public static final boolean PPC_64
-      = System.getProperties().getProperty("os.arch").contains("ppc64");
-
-  /**
-   * Cache of constructors for each class. Pins the classes so they
-   * can't be garbage collected until ReflectionUtils can be collected.
-   */
-  private static final Map<Class<?>, Constructor<?>> CONSTRUCTOR_CACHE =
-      new ConcurrentHashMap<>();
-
-  public static InterruptedIOException toInterruptedIOException(
-      String message, InterruptedException e) {
-    final InterruptedIOException iioe = new InterruptedIOException(message);
-    iioe.initCause(e);
-    return iioe;
-  }
-
-  public static IOException asIOException(Throwable t) {
-    return t instanceof IOException? (IOException)t : new IOException(t);
-  }
-
-  public static IOException toIOException(ExecutionException e) {
-    final Throwable cause = e.getCause();
-    return cause != null? asIOException(cause): new IOException(e);
-  }
-
-  /** Is the given object an instance of one of the given classes? */
-  public static boolean isInstance(Object obj, Class<?>... classes) {
-    for(Class<?> c : classes) {
-      if (c.isInstance(obj)) {
-        return true;
-      }
-    }
-    return false;
-  }
-
-  /**
-   * Create an object for the given class and initialize it from conf
-   *
-   * @param theClass class of which an object is created
-   * @return a new object
-   */
-  @SuppressWarnings("unchecked")
-  public static <T> T newInstance(Class<T> theClass, Object... initArgs) {
-    T result;
-    try {
-      Constructor<T> meth = (Constructor<T>) CONSTRUCTOR_CACHE.get(theClass);
-      if (meth == null) {
-        meth = theClass.getDeclaredConstructor(EMPTY_CLASS_ARRAY);
-        meth.setAccessible(true);
-        CONSTRUCTOR_CACHE.put(theClass, meth);
-      }
-      result = meth.newInstance(initArgs);
-    } catch (Exception e) {
-      throw new RuntimeException(e);
-    }
-    return result;
-  }
-
-  public static int getRandomBetween(int min, int max) {
-    Preconditions.checkArgument(max > min);
-    return ThreadLocalRandom.current().nextInt(max -min) + min;
-  }
-
-  public static void setLogLevel(Logger logger, Level level) {
-    LogManager.getLogger(logger.getName()).setLevel(level);
-  }
-
-
-  public static void readFully(InputStream in, int buffSize) throws 
IOException {
-    final byte buf[] = new byte[buffSize];
-    for(int bytesRead = in.read(buf); bytesRead >= 0; ) {
-      bytesRead = in.read(buf);
-    }
-  }
-
-  /**
-   * Reads len bytes in a loop.
-   *
-   * @param in InputStream to read from
-   * @param buf The buffer to fill
-   * @param off offset from the buffer
-   * @param len the length of bytes to read
-   * @throws IOException if it could not read requested number of bytes
-   * for any reason (including EOF)
-   */
-  public static void readFully(InputStream in, byte[] buf, int off, int len)
-      throws IOException {
-    for(int toRead = len; toRead > 0; ) {
-      final int ret = in.read(buf, off, toRead);
-      if (ret < 0) {
-        throw new IOException( "Premature EOF from inputStream");
-      }
-      toRead -= ret;
-      off += ret;
-    }
-  }
-
-  /**
-   * Write a ByteBuffer to a FileChannel at a given offset,
-   * handling short writes.
-   *
-   * @param fc               The FileChannel to write to
-   * @param buf              The input buffer
-   * @param offset           The offset in the file to start writing at
-   * @throws IOException     On I/O error
-   */
-  public static void writeFully(FileChannel fc, ByteBuffer buf, long offset)
-      throws IOException {
-    do {
-      offset += fc.write(buf, offset);
-    } while (buf.remaining() > 0);
-  }
-
-  /**
-   * Similar to readFully(). Skips bytes in a loop.
-   * @param in The InputStream to skip bytes from
-   * @param len number of bytes to skip.
-   * @throws IOException if it could not skip requested number of bytes
-   * for any reason (including EOF)
-   */
-  public static void skipFully(InputStream in, long len) throws IOException {
-    long amt = len;
-    while (amt > 0) {
-      long ret = in.skip(amt);
-      if (ret == 0) {
-        // skip may return 0 even if we're not at EOF.  Luckily, we can
-        // use the read() method to figure out if we're at the end.
-        int b = in.read();
-        if (b == -1) {
-          throw new EOFException( "Premature EOF from inputStream after " +
-              "skipping " + (len - amt) + " byte(s).");
-        }
-        ret = 1;
-      }
-      amt -= ret;
-    }
-  }
-
-  /**
-   * Close the Closeable objects and <b>ignore</b> any {@link Throwable} or
-   * null pointers. Must only be used for cleanup in exception handlers.
-   *
-   * @param log the log to record problems to at debug level. Can be null.
-   * @param closeables the objects to close
-   */
-  public static void cleanup(Logger log, Closeable... closeables) {
-    for (Closeable c : closeables) {
-      if (c != null) {
-        try {
-          c.close();
-        } catch(Throwable e) {
-          if (log != null && log.isDebugEnabled()) {
-            log.debug("Exception in closing " + c, e);
-          }
-        }
-      }
-    }
-  }
-}

http://git-wip-us.apache.org/repos/asf/incubator-ratis/blob/7e71a2e0/raft-common/src/main/java/org/apache/raft/util/StringUtils.java
----------------------------------------------------------------------
diff --git a/raft-common/src/main/java/org/apache/raft/util/StringUtils.java 
b/raft-common/src/main/java/org/apache/raft/util/StringUtils.java
deleted file mode 100644
index c644572..0000000
--- a/raft-common/src/main/java/org/apache/raft/util/StringUtils.java
+++ /dev/null
@@ -1,108 +0,0 @@
-/**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.apache.raft.util;
-
-import com.google.common.base.Preconditions;
-import com.google.common.collect.Interner;
-import com.google.common.collect.Interners;
-
-import java.util.Iterator;
-import java.util.Locale;
-
-public class StringUtils {
-  public static final String[] EMPTY_STRING_ARRAY = {};
-
-  /** Retains a weak reference to each string instance it has interned. */
-  private static final Interner<String> WEAK_INTERNER = 
Interners.newWeakInterner();
-
-  /**
-   * Interns and returns a reference to the representative instance
-   * for any of a collection of string instances that are equal to each other.
-   * Retains weak reference to the instance,
-   * and so does not prevent it from being garbage-collected.
-   *
-   * @param sample string instance to be interned
-   * @return weak reference to interned string instance
-   */
-  public static String weakIntern(String sample) {
-    return sample == null? null: WEAK_INTERNER.intern(sample);
-  }
-
-  /**
-   * Splits the given comma separated {@link String}.
-   * Each split value is trimmed.
-   *
-   * @param s a comma separated {@link String}, or possibly null.
-   * @return the split strings, or an empty array if the given string is null.
-   */
-  public static String[] getTrimmedStrings(String s) {
-    return s == null? EMPTY_STRING_ARRAY
-        : (s = s.trim()).isEmpty()? EMPTY_STRING_ARRAY
-        : s.split("\\s*,\\s*");
-  }
-
-  /** The same as String.format(Locale.ENGLISH, format, objects). */
-  public static String format(final String format, final Object... objects) {
-    return String.format(Locale.ENGLISH, format, objects);
-  }
-
-  public static String bytes2HexString(byte[] bytes) {
-    Preconditions.checkNotNull(bytes);
-
-    final StringBuilder s = new StringBuilder(2 * bytes.length);
-    for(byte b : bytes) {
-      s.append(format("%02x", b));
-    }
-    return s.toString();
-  }
-
-  public static boolean string2boolean(String s, boolean defaultValue) {
-    if (s == null || s.isEmpty()) {
-      return defaultValue;
-    }
-
-    if ("true".equalsIgnoreCase(s)) {
-      return true;
-    } else if ("false".equalsIgnoreCase(s)) {
-      return false;
-    } else {
-      return defaultValue;
-    }
-  }
-
-  /**
-   *  @return the next string in the iteration right after the given string;
-   *          if the given string is not in the iteration, return the first 
string.
-   */
-  public static String next(final String given, final Iterable<String> 
iteration) {
-    Preconditions.checkNotNull(given);
-    Preconditions.checkNotNull(iteration);
-    final Iterator<String> i = iteration.iterator();
-    Preconditions.checkArgument(i.hasNext());
-
-    final String first = i.next();
-    for(String current = first; i.hasNext(); ) {
-      final String next = i.next();
-      if (given.equals(current)) {
-        return next;
-      }
-      current = next;
-    }
-    return first;
-  }
-}

http://git-wip-us.apache.org/repos/asf/incubator-ratis/blob/7e71a2e0/raft-common/src/main/java/org/apache/raft/util/Timestamp.java
----------------------------------------------------------------------
diff --git a/raft-common/src/main/java/org/apache/raft/util/Timestamp.java 
b/raft-common/src/main/java/org/apache/raft/util/Timestamp.java
deleted file mode 100644
index aa1b283..0000000
--- a/raft-common/src/main/java/org/apache/raft/util/Timestamp.java
+++ /dev/null
@@ -1,84 +0,0 @@
-/**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.apache.raft.util;
-
-/**
- * Use {@link System#nanoTime()} as timestamps.
- *
- * This class takes care the possibility of numerical overflow.
- *
- * The objects of this class are immutable.
- */
-public class Timestamp implements Comparable<Timestamp> {
-  private static final long NANOSECONDS_PER_MILLISECOND = 1000000;
-
-  private static final long START_TIME = System.nanoTime();
-
-  /** @return the latest timestamp. */
-  public static Timestamp latest(Timestamp a, Timestamp b) {
-    return a.compareTo(b) > 0? a: b;
-  }
-
-  private final long nanos;
-
-  private Timestamp(long nanos) {
-    this.nanos = nanos;
-  }
-
-  /** Construct a timestamp with the current time. */
-  public Timestamp() {
-    this(System.nanoTime());
-  }
-
-  /**
-   * @param milliseconds the time period to be added.
-   * @return a new {@link Timestamp} whose value is calculated
-   *         by adding the given milliseconds to this timestamp.
-   */
-  public Timestamp addTimeMs(long milliseconds) {
-    return new Timestamp(nanos + milliseconds * NANOSECONDS_PER_MILLISECOND);
-  }
-
-  /**
-   * @return the elapsed time in milliseconds.
-   *         If the timestamp is a future time,
-   *         this method returns a negative value.
-   */
-  public long elapsedTimeMs() {
-    final long d = System.nanoTime() - nanos;
-    return d / NANOSECONDS_PER_MILLISECOND;
-  }
-
-  /**
-   * Compare two timestamps, t0 (this) and t1 (that).
-   * This method uses {@code t0 - t1 < 0}, not {@code t0 < t1},
-   * in order to take care the possibility of numerical overflow.
-   *
-   * @see System#nanoTime()
-   */
-  @Override
-  public int compareTo(Timestamp that) {
-    final long d = this.nanos - that.nanos;
-    return d > 0? 1: d == 0? 0: -1;
-  }
-
-  @Override
-  public String toString() {
-    return (nanos - START_TIME)/NANOSECONDS_PER_MILLISECOND + "ms";
-  }
-}

http://git-wip-us.apache.org/repos/asf/incubator-ratis/blob/7e71a2e0/raft-common/src/main/native/src/exception.c
----------------------------------------------------------------------
diff --git a/raft-common/src/main/native/src/exception.c 
b/raft-common/src/main/native/src/exception.c
deleted file mode 100644
index fc072e8..0000000
--- a/raft-common/src/main/native/src/exception.c
+++ /dev/null
@@ -1,124 +0,0 @@
-/**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "exception.h"
-
-#include <jni.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-jthrowable newExceptionV(JNIEnv* env, const char *name,
-                         const char *fmt, va_list ap)
-{
-  int need;
-  char buf[1], *msg = NULL;
-  va_list ap2;
-  jstring jstr = NULL;
-  jthrowable jthr;
-  jclass clazz;
-  jmethodID excCtor;
-
-  va_copy(ap2, ap);
-  clazz = (*env)->FindClass(env, name);
-  if (!clazz) {
-    jthr = (*env)->ExceptionOccurred(env);
-    (*env)->ExceptionClear(env);
-    goto done;
-  }
-  excCtor = (*env)->GetMethodID(env,
-        clazz, "<init>", "(Ljava/lang/String;)V");
-  if (!excCtor) {
-    jthr = (*env)->ExceptionOccurred(env);
-    (*env)->ExceptionClear(env);
-    goto done;
-  }
-  need = vsnprintf(buf, sizeof(buf), fmt, ap);
-  if (need < 0) {
-    fmt = "vsnprintf error";
-    need = strlen(fmt);
-  }
-  msg = malloc(need + 1);
-  vsnprintf(msg, need + 1, fmt, ap2);
-  jstr = (*env)->NewStringUTF(env, msg);
-  if (!jstr) {
-    jthr = (*env)->ExceptionOccurred(env);
-    (*env)->ExceptionClear(env);
-    goto done;
-  }
-  jthr = (*env)->NewObject(env, clazz, excCtor, jstr);
-  if (!jthr) {
-    jthr = (*env)->ExceptionOccurred(env);
-    (*env)->ExceptionClear(env);
-    goto done;
-  }
-
-done:
-  free(msg);
-  va_end(ap2);
-  (*env)->DeleteLocalRef(env, jstr);
-  return jthr;
-}
-
-jthrowable newException(JNIEnv* env, const char *name, const char *fmt, ...)
-{
-  va_list ap;
-  jthrowable jthr;
-
-  va_start(ap, fmt);
-  jthr = newExceptionV(env, name, fmt, ap);
-  va_end(ap);
-  return jthr;
-}
-
-jthrowable newRuntimeException(JNIEnv* env, const char *fmt, ...)
-{
-  va_list ap;
-  jthrowable jthr;
-
-  va_start(ap, fmt);
-  jthr = newExceptionV(env, "java/lang/RuntimeException", fmt, ap);
-  va_end(ap);
-  return jthr;
-}
-
-jthrowable newIOException(JNIEnv* env, const char *fmt, ...)
-{
-  va_list ap;
-  jthrowable jthr;
-
-  va_start(ap, fmt);
-  jthr = newExceptionV(env, "java/io/IOException", fmt, ap);
-  va_end(ap);
-  return jthr;
-}
-
-const char* terror(int errnum)
-{
-
-#if defined(__sun)
-// MT-Safe under Solaris which doesn't support sys_errlist/sys_nerr
-  return strerror(errnum); 
-#else
-  if ((errnum < 0) || (errnum >= sys_nerr)) {
-    return "unknown error.";
-  }
-  return sys_errlist[errnum];
-#endif
-}
-

http://git-wip-us.apache.org/repos/asf/incubator-ratis/blob/7e71a2e0/raft-common/src/main/native/src/exception.h
----------------------------------------------------------------------
diff --git a/raft-common/src/main/native/src/exception.h 
b/raft-common/src/main/native/src/exception.h
deleted file mode 100644
index e1dc360..0000000
--- a/raft-common/src/main/native/src/exception.h
+++ /dev/null
@@ -1,104 +0,0 @@
-/*
- *  Licensed to the Apache Software Foundation (ASF) under one or more
- *  contributor license agreements.  See the NOTICE file distributed with
- *  this work for additional information regarding copyright ownership.
- *  The ASF licenses this file to You under the Apache License, Version 2.0
- *  (the "License"); you may not use this file except in compliance with
- *  the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS,
- *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- */
-#ifndef RAFT_MAIN_NATIVE_SRC_EXCEPTION_H
-#define RAFT_MAIN_NATIVE_SRC_EXCEPTION_H
-
-#include <jni.h> /* for jthrowable */
-#include <stdarg.h> /* for va_list */
-#include "org_apache_raft.h"
-
-#ifdef WINDOWS
-/*
- * gcc-style type-checked format arguments are not supported on Windows, so 
just
- * stub this macro.
- */
-#define TYPE_CHECKED_PRINTF_FORMAT(formatArg, varArgs)
-# else
-/* Use gcc type-checked format arguments. */
-#define TYPE_CHECKED_PRINTF_FORMAT(formatArg, varArgs) \
-  __attribute__((format(printf, formatArg, varArgs)))
-#endif
-
-/**
- * Create a new Exception.
- *
- * No exceptions will be pending on return.
- *
- * @param env           The JNI environment
- * @param name          full name of the Java exception class
- * @param fmt           printf-style format string
- * @param ap            printf-style arguments
- *
- * @return              The RuntimeException
- */
-jthrowable newExceptionV(JNIEnv* env, const char *name,
-                         const char *fmt, va_list ap);
-
-/**
- * Create a new Exception.
- *
- * No exceptions will be pending on return.
- *
- * @param env           The JNI environment
- * @param name          full name of the Java exception class
- * @param fmt           printf-style format string
- * @param ...           printf-style arguments
- *
- * @return              The RuntimeException
- */
-jthrowable newException(JNIEnv* env, const char *name, const char *fmt, ...)
-    TYPE_CHECKED_PRINTF_FORMAT(3, 4);
-
-/**
- * Create a new RuntimeException.
- *
- * No exceptions will be pending on return.
- *
- * @param env           The JNI environment
- * @param fmt           printf-style format string
- * @param ...           printf-style arguments
- *
- * @return              The RuntimeException
- */
-jthrowable newRuntimeException(JNIEnv* env, const char *fmt, ...)
-    TYPE_CHECKED_PRINTF_FORMAT(2, 3);
-
-/**
- * Create a new IOException.
- *
- * No exceptions will be pending on return.
- *
- * @param env           The JNI environment
- * @param fmt           printf-style format string
- * @param ...           printf-style arguments
- *
- * @return              The IOException, or another exception if we failed
- *                      to create the NativeIOException.
- */
-jthrowable newIOException(JNIEnv* env, const char *fmt, ...)
-    TYPE_CHECKED_PRINTF_FORMAT(2, 3);
-
-/**
- * Thread-safe strerror alternative.
- *
- * @param errnum        Error number.
- * @return              Statically allocated error string.
- */
-const char* terror(int errnum);
-
-#undef TYPE_CHECKED_PRINTF_FORMAT
-#endif

http://git-wip-us.apache.org/repos/asf/incubator-ratis/blob/7e71a2e0/raft-common/src/main/native/src/org/apache/raft/io/nativeio/NativeIO.c
----------------------------------------------------------------------
diff --git 
a/raft-common/src/main/native/src/org/apache/raft/io/nativeio/NativeIO.c 
b/raft-common/src/main/native/src/org/apache/raft/io/nativeio/NativeIO.c
deleted file mode 100644
index 2ebbbdb..0000000
--- a/raft-common/src/main/native/src/org/apache/raft/io/nativeio/NativeIO.c
+++ /dev/null
@@ -1,1061 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "org_apache_raft.h"
-#include "org_apache_raft_io_nativeio_NativeIO.h"
-#include "org_apache_raft_io_nativeio_NativeIO_POSIX.h"
-#include "exception.h"
-
-#ifdef UNIX
-#include <assert.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <grp.h>
-#include <jni.h>
-#include <pwd.h>
-#include <stdint.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/mman.h>
-#include <sys/resource.h>
-#include <sys/stat.h>
-#include <sys/syscall.h>
-#if !(defined(__FreeBSD__) || defined(__MACH__))
-#include <sys/sendfile.h>
-#endif
-#include <sys/time.h>
-#include <sys/types.h>
-#include <unistd.h>
-#include "config.h"
-#endif
-
-#ifdef WINDOWS
-#include <assert.h>
-#include <Windows.h>
-#include "winutils.h"
-#endif
-
-#include "file_descriptor.h"
-#include "errno_enum.h"
-
-#define MMAP_PROT_READ 
org_apache_raft_io_nativeio_NativeIO_POSIX_MMAP_PROT_READ
-#define MMAP_PROT_WRITE 
org_apache_raft_io_nativeio_NativeIO_POSIX_MMAP_PROT_WRITE
-#define MMAP_PROT_EXEC 
org_apache_raft_io_nativeio_NativeIO_POSIX_MMAP_PROT_EXEC
-
-#define NATIVE_IO_POSIX_CLASS "org/apache/raft/io/nativeio/NativeIO$POSIX"
-#define NATIVE_IO_STAT_CLASS "org/apache/raft/io/nativeio/NativeIO$POSIX$Stat"
-
-#define SET_INT_OR_RETURN(E, C, F) \
-  { \
-    setStaticInt(E, C, #F, F); \
-    if ((*E)->ExceptionCheck(E)) return; \
-  }
-
-// the NativeIO$POSIX$Stat inner class and its constructor
-static jclass stat_clazz;
-static jmethodID stat_ctor;
-static jmethodID stat_ctor2;
-
-// the NativeIOException class and its constructor
-static jclass nioe_clazz;
-static jmethodID nioe_ctor;
-
-// the monitor used for working around non-threadsafe implementations
-// of getpwuid_r, observed on platforms including RHEL 6.0.
-// Please see raft-7156 for details.
-jobject pw_lock_object;
-
-/*
- * Throw a java.IO.IOException, generating the message from errno.
- * NB. this is also used form windows_secure_container_executor.c
- */
-extern void throw_ioe(JNIEnv* env, int errnum);
-
-// Internal functions
-#ifdef UNIX
-static ssize_t get_pw_buflen();
-#endif
-
-/**
- * Returns non-zero if the user has specified that the system
- * has non-threadsafe implementations of getpwuid_r or getgrgid_r.
- **/
-static int workaround_non_threadsafe_calls(JNIEnv *env, jclass clazz) {
-  jboolean result;
-  jfieldID needs_workaround_field = (*env)->GetStaticFieldID(
-    env, clazz,
-    "workaroundNonThreadSafePasswdCalls",
-    "Z");
-  PASS_EXCEPTIONS_RET(env, 0);
-  assert(needs_workaround_field);
-
-  result = (*env)->GetStaticBooleanField(
-    env, clazz, needs_workaround_field);
-  return result;
-}
-
-/**
- * Sets a static boolean field to the specified value.
- */
-static void setStaticBoolean(JNIEnv *env, jclass clazz, char *field,
-  jboolean val) {
-    jfieldID fid = (*env)->GetStaticFieldID(env, clazz, field, "Z");
-    if (fid != NULL) {
-      (*env)->SetStaticBooleanField(env, clazz, fid, val);
-    }
-}
-
-/**
- * Sets a static int field to the specified value.
- */
-static void setStaticInt(JNIEnv *env, jclass clazz, char *field,
-  jint val) {
-    jfieldID fid = (*env)->GetStaticFieldID(env, clazz, field, "I");
-    if (fid != NULL) {
-      (*env)->SetStaticIntField(env, clazz, fid, val);
-    }
-}
-
-#ifdef UNIX
-/**
- * Initialises a list of java constants that are platform specific.
- * These are only initialized in UNIX.
- * Any exceptions that occur will be dealt at the level above.
-**/
-static void consts_init(JNIEnv *env) {
-  jclass clazz = (*env)->FindClass(env, NATIVE_IO_POSIX_CLASS);
-  if (clazz == NULL) {
-    return; // exception has been raised
-  }
-  SET_INT_OR_RETURN(env, clazz, O_RDONLY);
-  SET_INT_OR_RETURN(env, clazz, O_WRONLY);
-  SET_INT_OR_RETURN(env, clazz, O_RDWR);
-  SET_INT_OR_RETURN(env, clazz, O_CREAT);
-  SET_INT_OR_RETURN(env, clazz, O_EXCL);
-  SET_INT_OR_RETURN(env, clazz, O_NOCTTY);
-  SET_INT_OR_RETURN(env, clazz, O_TRUNC);
-  SET_INT_OR_RETURN(env, clazz, O_APPEND);
-  SET_INT_OR_RETURN(env, clazz, O_NONBLOCK);
-  SET_INT_OR_RETURN(env, clazz, O_SYNC);
-#ifdef HAVE_POSIX_FADVISE
-  setStaticBoolean(env, clazz, "fadvisePossible", JNI_TRUE);
-  SET_INT_OR_RETURN(env, clazz, POSIX_FADV_NORMAL);
-  SET_INT_OR_RETURN(env, clazz, POSIX_FADV_RANDOM);
-  SET_INT_OR_RETURN(env, clazz, POSIX_FADV_SEQUENTIAL);
-  SET_INT_OR_RETURN(env, clazz, POSIX_FADV_WILLNEED);
-  SET_INT_OR_RETURN(env, clazz, POSIX_FADV_DONTNEED);
-  SET_INT_OR_RETURN(env, clazz, POSIX_FADV_NOREUSE);
-#else
-  setStaticBoolean(env, clazz, "fadvisePossible", JNI_FALSE);
-#endif
-#ifdef HAVE_SYNC_FILE_RANGE
-  SET_INT_OR_RETURN(env, clazz, SYNC_FILE_RANGE_WAIT_BEFORE);
-  SET_INT_OR_RETURN(env, clazz, SYNC_FILE_RANGE_WRITE);
-  SET_INT_OR_RETURN(env, clazz, SYNC_FILE_RANGE_WAIT_AFTER);
-#endif
-  clazz = (*env)->FindClass(env, NATIVE_IO_STAT_CLASS);
-  if (clazz == NULL) {
-    return; // exception has been raised
-  }
-  SET_INT_OR_RETURN(env, clazz, S_IFMT);
-  SET_INT_OR_RETURN(env, clazz, S_IFIFO);
-  SET_INT_OR_RETURN(env, clazz, S_IFCHR);
-  SET_INT_OR_RETURN(env, clazz, S_IFDIR);
-  SET_INT_OR_RETURN(env, clazz, S_IFBLK);
-  SET_INT_OR_RETURN(env, clazz, S_IFREG);
-  SET_INT_OR_RETURN(env, clazz, S_IFLNK);
-  SET_INT_OR_RETURN(env, clazz, S_IFSOCK);
-  SET_INT_OR_RETURN(env, clazz, S_ISUID);
-  SET_INT_OR_RETURN(env, clazz, S_ISGID);
-  SET_INT_OR_RETURN(env, clazz, S_ISVTX);
-  SET_INT_OR_RETURN(env, clazz, S_IRUSR);
-  SET_INT_OR_RETURN(env, clazz, S_IWUSR);
-  SET_INT_OR_RETURN(env, clazz, S_IXUSR);
-}
-#endif
-
-static void stat_init(JNIEnv *env, jclass nativeio_class) {
-  jclass clazz = NULL;
-  jclass obj_class = NULL;
-  jmethodID  obj_ctor = NULL;
-  // Init Stat
-  clazz = (*env)->FindClass(env, NATIVE_IO_STAT_CLASS);
-  if (!clazz) {
-    return; // exception has been raised
-  }
-  stat_clazz = (*env)->NewGlobalRef(env, clazz);
-  if (!stat_clazz) {
-    return; // exception has been raised
-  }
-  stat_ctor = (*env)->GetMethodID(env, stat_clazz, "<init>",
-    "(III)V");
-  if (!stat_ctor) {
-    return; // exception has been raised
-  }
-  stat_ctor2 = (*env)->GetMethodID(env, stat_clazz, "<init>",
-    "(Ljava/lang/String;Ljava/lang/String;I)V");
-  if (!stat_ctor2) {
-    return; // exception has been raised
-  }
-  obj_class = (*env)->FindClass(env, "java/lang/Object");
-  if (!obj_class) {
-    return; // exception has been raised
-  }
-  obj_ctor = (*env)->GetMethodID(env, obj_class,
-    "<init>", "()V");
-  if (!obj_ctor) {
-    return; // exception has been raised
-  }
-
-  if (workaround_non_threadsafe_calls(env, nativeio_class)) {
-    pw_lock_object = (*env)->NewObject(env, obj_class, obj_ctor);
-    PASS_EXCEPTIONS(env);
-    pw_lock_object = (*env)->NewGlobalRef(env, pw_lock_object);
-
-    PASS_EXCEPTIONS(env);
-  }
-}
-
-static void stat_deinit(JNIEnv *env) {
-  if (stat_clazz != NULL) {  
-    (*env)->DeleteGlobalRef(env, stat_clazz);
-    stat_clazz = NULL;
-  }
-  if (pw_lock_object != NULL) {
-    (*env)->DeleteGlobalRef(env, pw_lock_object);
-    pw_lock_object = NULL;
-  }
-}
-
-static void nioe_init(JNIEnv *env) {
-  // Init NativeIOException
-  nioe_clazz = (*env)->FindClass(
-    env, "org/apache/raft/io/nativeio/NativeIOException");
-  PASS_EXCEPTIONS(env);
-
-  nioe_clazz = (*env)->NewGlobalRef(env, nioe_clazz);
-#ifdef UNIX
-  nioe_ctor = (*env)->GetMethodID(env, nioe_clazz, "<init>",
-    "(Ljava/lang/String;Lorg/apache/raft/io/nativeio/Errno;)V");
-#endif
-
-#ifdef WINDOWS
-  nioe_ctor = (*env)->GetMethodID(env, nioe_clazz, "<init>",
-    "(Ljava/lang/String;I)V");
-#endif
-}
-
-static void nioe_deinit(JNIEnv *env) {
-  if (nioe_clazz != NULL) {
-    (*env)->DeleteGlobalRef(env, nioe_clazz);
-    nioe_clazz = NULL;
-  }
-  nioe_ctor = NULL;
-}
-
-/*
- * private static native void initNative();
- *
- * We rely on this function rather than lazy initialization because
- * the lazy approach may have a race if multiple callers try to
- * init at the same time.
- */
-JNIEXPORT void JNICALL
-Java_org_apache_raft_io_nativeio_NativeIO_initNative(
-  JNIEnv *env, jclass clazz) {
-#ifdef UNIX
-  consts_init(env);
-  PASS_EXCEPTIONS_GOTO(env, error);
-#endif
-  stat_init(env, clazz);
-  PASS_EXCEPTIONS_GOTO(env, error);
-  nioe_init(env);
-  PASS_EXCEPTIONS_GOTO(env, error);
-  fd_init(env);
-  PASS_EXCEPTIONS_GOTO(env, error);
-#ifdef UNIX
-  errno_enum_init(env);
-  PASS_EXCEPTIONS_GOTO(env, error);
-#endif
-  return;
-error:
-  // these are all idempodent and safe to call even if the
-  // class wasn't initted yet
-#ifdef UNIX
-  stat_deinit(env);
-#endif
-  nioe_deinit(env);
-  fd_deinit(env);
-#ifdef UNIX
-  errno_enum_deinit(env);
-#endif
-}
-
-/*
- * Class:     org_apache_raft_io_nativeio_NativeIO_POSIX
- * Method:    fstat
- * Signature: 
(Ljava/io/FileDescriptor;)Lorg/apache/raft/io/nativeio/NativeIO$POSIX$Stat;
- * public static native Stat fstat(FileDescriptor fd);
- *
- * The "00024" in the function name is an artifact of how JNI encodes
- * special characters. U+0024 is '$'.
- */
-JNIEXPORT jobject JNICALL
-Java_org_apache_raft_io_nativeio_NativeIO_00024POSIX_fstat(
-  JNIEnv *env, jclass clazz, jobject fd_object)
-{
-#ifdef UNIX
-  jobject ret = NULL;
-
-  int fd = fd_get(env, fd_object);
-  PASS_EXCEPTIONS_GOTO(env, cleanup);
-
-  struct stat s;
-  int rc = fstat(fd, &s);
-  if (rc != 0) {
-    throw_ioe(env, errno);
-    goto cleanup;
-  }
-
-  // Construct result
-  ret = (*env)->NewObject(env, stat_clazz, stat_ctor,
-    (jint)s.st_uid, (jint)s.st_gid, (jint)s.st_mode);
-
-cleanup:
-  return ret;
-#endif
-
-#ifdef WINDOWS
-  LPWSTR owner = NULL;
-  LPWSTR group = NULL;
-  int mode = 0;
-  jstring jstr_owner = NULL;
-  jstring jstr_group = NULL;
-  int rc;
-  jobject ret = NULL;
-  HANDLE hFile = (HANDLE) fd_get(env, fd_object);
-  PASS_EXCEPTIONS_GOTO(env, cleanup);
-
-  rc = FindFileOwnerAndPermissionByHandle(hFile, &owner, &group, &mode);
-  if (rc != ERROR_SUCCESS) {
-    throw_ioe(env, rc);
-    goto cleanup;
-  }
-
-  jstr_owner = (*env)->NewString(env, owner, (jsize) wcslen(owner));
-  if (jstr_owner == NULL) goto cleanup;
-
-  jstr_group = (*env)->NewString(env, group, (jsize) wcslen(group));;
-  if (jstr_group == NULL) goto cleanup;
-
-  ret = (*env)->NewObject(env, stat_clazz, stat_ctor2,
-    jstr_owner, jstr_group, (jint)mode);
-
-cleanup:
-  if (ret == NULL) {
-    if (jstr_owner != NULL)
-      (*env)->ReleaseStringChars(env, jstr_owner, owner);
-
-    if (jstr_group != NULL)
-      (*env)->ReleaseStringChars(env, jstr_group, group);
-  }
-
-  LocalFree(owner);
-  LocalFree(group);
-
-  return ret;
-#endif
-}
-
-
-
-/**
- * public static native void posix_fadvise(
- *   FileDescriptor fd, long offset, long len, int flags);
- *
- * The "00024" in the function name is an artifact of how JNI encodes
- * special characters. U+0024 is '$'.
- */
-JNIEXPORT void JNICALL
-Java_org_apache_raft_io_nativeio_NativeIO_00024POSIX_posix_1fadvise(
-  JNIEnv *env, jclass clazz,
-  jobject fd_object, jlong offset, jlong len, jint flags)
-{
-#ifndef HAVE_POSIX_FADVISE
-  THROW(env, "java/lang/UnsupportedOperationException",
-        "fadvise support not available");
-#else
-  int fd = fd_get(env, fd_object);
-  PASS_EXCEPTIONS(env);
-
-  int err = 0;
-  if ((err = posix_fadvise(fd, (off_t)offset, (off_t)len, flags))) {
-#ifdef __FreeBSD__
-    throw_ioe(env, errno);
-#else
-    throw_ioe(env, err);
-#endif
-  }
-#endif
-}
-
-#if defined(HAVE_SYNC_FILE_RANGE)
-#  define my_sync_file_range sync_file_range
-#elif defined(SYS_sync_file_range)
-// RHEL 5 kernels have sync_file_range support, but the glibc
-// included does not have the library function. We can
-// still call it directly, and if it's not supported by the
-// kernel, we'd get ENOSYS. See RedHat Bugzilla #518581
-static int manual_sync_file_range (int fd, __off64_t from, __off64_t to, 
unsigned int flags)
-{
-#ifdef __x86_64__
-  return syscall( SYS_sync_file_range, fd, from, to, flags);
-#else
-  return syscall (SYS_sync_file_range, fd,
-    __LONG_LONG_PAIR ((long) (from >> 32), (long) from),
-    __LONG_LONG_PAIR ((long) (to >> 32), (long) to),
-    flags);
-#endif
-}
-#define my_sync_file_range manual_sync_file_range
-#endif
-
-/**
- * public static native void sync_file_range(
- *   FileDescriptor fd, long offset, long len, int flags);
- *
- * The "00024" in the function name is an artifact of how JNI encodes
- * special characters. U+0024 is '$'.
- */
-JNIEXPORT void JNICALL
-Java_org_apache_raft_io_nativeio_NativeIO_00024POSIX_sync_1file_1range(
-  JNIEnv *env, jclass clazz,
-  jobject fd_object, jlong offset, jlong len, jint flags)
-{
-#ifndef my_sync_file_range
-  THROW(env, "java/lang/UnsupportedOperationException",
-        "sync_file_range support not available");
-#else
-  int fd = fd_get(env, fd_object);
-  PASS_EXCEPTIONS(env);
-
-  if (my_sync_file_range(fd, (off_t)offset, (off_t)len, flags)) {
-    if (errno == ENOSYS) {
-      // we know the syscall number, but it's not compiled
-      // into the running kernel
-      THROW(env, "java/lang/UnsupportedOperationException",
-            "sync_file_range kernel support not available");
-      return;
-    } else {
-      throw_ioe(env, errno);
-    }
-  }
-#endif
-}
-
-#define CHECK_DIRECT_BUFFER_ADDRESS(buf) \
-  { \
-    if (!buf) { \
-      THROW(env, "java/lang/UnsupportedOperationException", \
-        "JNI access to direct buffers not available"); \
-      return; \
-    } \
-  }
-
-/**
- * public static native void mlock_native(
- *   ByteBuffer buffer, long offset);
- *
- * The "00024" in the function name is an artifact of how JNI encodes
- * special characters. U+0024 is '$'.
- */
-JNIEXPORT void JNICALL
-Java_org_apache_raft_io_nativeio_NativeIO_00024POSIX_mlock_1native(
-  JNIEnv *env, jclass clazz,
-  jobject buffer, jlong len)
-{
-  void* buf = (void*)(*env)->GetDirectBufferAddress(env, buffer);
-  PASS_EXCEPTIONS(env);
-
-#ifdef UNIX
-  if (mlock(buf, len)) {
-    CHECK_DIRECT_BUFFER_ADDRESS(buf);
-    throw_ioe(env, errno);
-  }
-#endif
-
-#ifdef WINDOWS
-  if (!VirtualLock(buf, len)) {
-    CHECK_DIRECT_BUFFER_ADDRESS(buf);
-    throw_ioe(env, GetLastError());
-  }
-#endif
-}
-
-/*
- * Class:     org_apache_raft_io_nativeio_NativeIO_POSIX
- * Method:    open
- * Signature: (Ljava/lang/String;II)Ljava/io/FileDescriptor;
- * public static native FileDescriptor open(String path, int flags, int mode);
- *
- * The "00024" in the function name is an artifact of how JNI encodes
- * special characters. U+0024 is '$'.
- */
-JNIEXPORT jobject JNICALL
-Java_org_apache_raft_io_nativeio_NativeIO_00024POSIX_open(
-  JNIEnv *env, jclass clazz, jstring j_path,
-  jint flags, jint mode)
-{
-#ifdef UNIX
-  jobject ret = NULL;
-
-  const char *path = (*env)->GetStringUTFChars(env, j_path, NULL);
-  if (path == NULL) goto cleanup; // JVM throws Exception for us
-
-  int fd;  
-  if (flags & O_CREAT) {
-    fd = open(path, flags, mode);
-  } else {
-    fd = open(path, flags);
-  }
-
-  if (fd == -1) {
-    throw_ioe(env, errno);
-    goto cleanup;
-  }
-
-  ret = fd_create(env, fd);
-
-cleanup:
-  if (path != NULL) {
-    (*env)->ReleaseStringUTFChars(env, j_path, path);
-  }
-  return ret;
-#endif
-
-#ifdef WINDOWS
-  THROW(env, "java/io/IOException",
-    "The function POSIX.open() is not supported on Windows");
-  return NULL;
-#endif
-}
-
-/*
- * Class:     org_apache_raft_io_nativeio_NativeIO_Windows
- * Method:    createDirectoryWithMode0
- * Signature: (Ljava/lang/String;I)V
- *
- * The "00024" in the function name is an artifact of how JNI encodes
- * special characters. U+0024 is '$'.
- */
-JNIEXPORT void JNICALL
-  
Java_org_apache_raft_io_nativeio_NativeIO_00024Windows_createDirectoryWithMode0
-  (JNIEnv *env, jclass clazz, jstring j_path, jint mode)
-{
-#ifdef WINDOWS
-  DWORD dwRtnCode = ERROR_SUCCESS;
-
-  LPCWSTR path = (LPCWSTR) (*env)->GetStringChars(env, j_path, NULL);
-  if (!path) {
-    goto done;
-  }
-
-  dwRtnCode = CreateDirectoryWithMode(path, mode);
-
-done:
-  if (path) {
-    (*env)->ReleaseStringChars(env, j_path, (const jchar*) path);
-  }
-  if (dwRtnCode != ERROR_SUCCESS) {
-    throw_ioe(env, dwRtnCode);
-  }
-#else
-  THROW(env, "java/io/IOException",
-    "The function Windows.createDirectoryWithMode0() is not supported on this 
platform");
-#endif
-}
-
-/*
- * Class:     org_apache_raft_io_nativeio_NativeIO_Windows
- * Method:    createFileWithMode0
- * Signature: (Ljava/lang/String;JJJI)Ljava/io/FileDescriptor;
- *
- * The "00024" in the function name is an artifact of how JNI encodes
- * special characters. U+0024 is '$'.
- */
-JNIEXPORT jobject JNICALL
-  Java_org_apache_raft_io_nativeio_NativeIO_00024Windows_createFileWithMode0
-  (JNIEnv *env, jclass clazz, jstring j_path,
-  jlong desiredAccess, jlong shareMode, jlong creationDisposition, jint mode)
-{
-#ifdef WINDOWS
-  DWORD dwRtnCode = ERROR_SUCCESS;
-  HANDLE hFile = INVALID_HANDLE_VALUE;
-  jobject fd = NULL;
-
-  LPCWSTR path = (LPCWSTR) (*env)->GetStringChars(env, j_path, NULL);
-  if (!path) {
-    goto done;
-  }
-
-  dwRtnCode = CreateFileWithMode(path, desiredAccess, shareMode,
-      creationDisposition, mode, &hFile);
-  if (dwRtnCode != ERROR_SUCCESS) {
-    goto done;
-  }
-
-  fd = fd_create(env, (long) hFile);
-
-done:
-  if (path) {
-    (*env)->ReleaseStringChars(env, j_path, (const jchar*) path);
-  }
-  if (dwRtnCode != ERROR_SUCCESS) {
-    throw_ioe(env, dwRtnCode);
-  }
-  return fd;
-#else
-  THROW(env, "java/io/IOException",
-    "The function Windows.createFileWithMode0() is not supported on this 
platform");
-  return NULL;
-#endif
-}
-
-/*
- * Class:     org_apache_raft_io_nativeio_NativeIO_Windows
- * Method:    createFile
- * Signature: (Ljava/lang/String;JJJ)Ljava/io/FileDescriptor;
- *
- * The "00024" in the function name is an artifact of how JNI encodes
- * special characters. U+0024 is '$'.
- */
-JNIEXPORT jobject JNICALL 
Java_org_apache_raft_io_nativeio_NativeIO_00024Windows_createFile
-  (JNIEnv *env, jclass clazz, jstring j_path,
-  jlong desiredAccess, jlong shareMode, jlong creationDisposition)
-{
-#ifdef UNIX
-  THROW(env, "java/io/IOException",
-    "The function Windows.createFile() is not supported on Unix");
-  return NULL;
-#endif
-
-#ifdef WINDOWS
-  DWORD dwRtnCode = ERROR_SUCCESS;
-  BOOL isSymlink = FALSE;
-  BOOL isJunction = FALSE;
-  DWORD dwFlagsAndAttributes = FILE_ATTRIBUTE_NORMAL | 
FILE_FLAG_BACKUP_SEMANTICS;
-  jobject ret = (jobject) NULL;
-  HANDLE hFile = INVALID_HANDLE_VALUE;
-  WCHAR *path = (WCHAR *) (*env)->GetStringChars(env, j_path, (jboolean*)NULL);
-  if (path == NULL) goto cleanup;
-
-  // Set the flag for a symbolic link or a junctions point only when it exists.
-  // According to MSDN if the call to CreateFile() function creates a file,
-  // there is no change in behavior. So we do not throw if no file is found.
-  //
-  dwRtnCode = SymbolicLinkCheck(path, &isSymlink);
-  if (dwRtnCode != ERROR_SUCCESS && dwRtnCode != ERROR_FILE_NOT_FOUND) {
-    throw_ioe(env, dwRtnCode);
-    goto cleanup;
-  }
-  dwRtnCode = JunctionPointCheck(path, &isJunction);
-  if (dwRtnCode != ERROR_SUCCESS && dwRtnCode != ERROR_FILE_NOT_FOUND) {
-    throw_ioe(env, dwRtnCode);
-    goto cleanup;
-  }
-  if (isSymlink || isJunction)
-    dwFlagsAndAttributes |= FILE_FLAG_OPEN_REPARSE_POINT;
-
-  hFile = CreateFile(path,
-    (DWORD) desiredAccess,
-    (DWORD) shareMode,
-    (LPSECURITY_ATTRIBUTES ) NULL,
-    (DWORD) creationDisposition,
-    dwFlagsAndAttributes,
-    NULL);
-  if (hFile == INVALID_HANDLE_VALUE) {
-    throw_ioe(env, GetLastError());
-    goto cleanup;
-  }
-
-  ret = fd_create(env, (long) hFile);
-cleanup:
-  if (path != NULL) {
-    (*env)->ReleaseStringChars(env, j_path, (const jchar*)path);
-  }
-  return (jobject) ret;
-#endif
-}
-
-/*
- * Class:     org_apache_raft_io_nativeio_NativeIO_POSIX
- * Method:    chmod
- * Signature: (Ljava/lang/String;I)V
- */
-JNIEXPORT void JNICALL 
Java_org_apache_raft_io_nativeio_NativeIO_00024POSIX_chmodImpl
-  (JNIEnv *env, jclass clazz, jstring j_path, jint mode)
-{
-#ifdef UNIX
-  const char *path = (*env)->GetStringUTFChars(env, j_path, NULL);
-  if (path == NULL) return; // JVM throws Exception for us
-
-  if (chmod(path, mode) != 0) {
-    throw_ioe(env, errno);
-  }
-
-  (*env)->ReleaseStringUTFChars(env, j_path, path);
-#endif
-
-#ifdef WINDOWS
-  DWORD dwRtnCode = ERROR_SUCCESS;
-  LPCWSTR path = (LPCWSTR) (*env)->GetStringChars(env, j_path, NULL);
-  if (path == NULL) return; // JVM throws Exception for us
-
-  if ((dwRtnCode = ChangeFileModeByMask((LPCWSTR) path, mode)) != 
ERROR_SUCCESS)
-  {
-    throw_ioe(env, dwRtnCode);
-  }
-
-  (*env)->ReleaseStringChars(env, j_path, (const jchar*) path);
-#endif
-}
-
-JNIEXPORT jlong JNICALL 
-Java_org_apache_raft_io_nativeio_NativeIO_00024POSIX_mmap(
-  JNIEnv *env, jclass clazz, jobject jfd, jint jprot,
-  jboolean jshared, jlong length)
-{
-#ifdef UNIX
-  void *addr = 0;
-  int prot, flags, fd;
-  
-  prot = ((jprot & MMAP_PROT_READ) ? PROT_READ : 0) |
-         ((jprot & MMAP_PROT_WRITE) ? PROT_WRITE : 0) |
-         ((jprot & MMAP_PROT_EXEC) ? PROT_EXEC : 0);
-  flags = (jshared == JNI_TRUE) ? MAP_SHARED : MAP_PRIVATE;
-  fd = fd_get(env, jfd);
-  addr = mmap(NULL, length, prot, flags, fd, 0);
-  if (addr == MAP_FAILED) {
-    throw_ioe(env, errno);
-  }
-  return (jlong)(intptr_t)addr;
-#endif  //   UNIX
-
-#ifdef WINDOWS
-  THROW(env, "java/io/IOException",
-    "The function POSIX.mmap() is not supported on Windows");
-  return (jlong)(intptr_t)NULL;
-#endif
-}
-
-JNIEXPORT void JNICALL 
-Java_org_apache_raft_io_nativeio_NativeIO_00024POSIX_munmap(
-  JNIEnv *env, jclass clazz, jlong jaddr, jlong length)
-{
-#ifdef UNIX
-  void *addr;
-
-  addr = (void*)(intptr_t)jaddr;
-  if (munmap(addr, length) < 0) {
-    throw_ioe(env, errno);
-  }
-#endif  //   UNIX
-
-#ifdef WINDOWS
-  THROW(env, "java/io/IOException",
-    "The function POSIX.munmap() is not supported on Windows");
-#endif
-}
-
-/*
- * Throw a java.IO.IOException, generating the message from errno.
- */
-void throw_ioe(JNIEnv* env, int errnum)
-{
-#ifdef UNIX
-  char message[80];
-  jstring jstr_message;
-
-  snprintf(message,sizeof(message),"%s",terror(errnum));
-
-  jobject errno_obj = errno_to_enum(env, errnum);
-
-  if ((jstr_message = (*env)->NewStringUTF(env, message)) == NULL)
-    goto err;
-
-  jthrowable obj = (jthrowable)(*env)->NewObject(env, nioe_clazz, nioe_ctor,
-    jstr_message, errno_obj);
-  if (obj == NULL) goto err;
-
-  (*env)->Throw(env, obj);
-  return;
-
-err:
-  if (jstr_message != NULL)
-    (*env)->ReleaseStringUTFChars(env, jstr_message, message);
-#endif
-
-#ifdef WINDOWS
-  DWORD len = 0;
-  LPWSTR buffer = NULL;
-  const jchar* message = NULL;
-  jstring jstr_message = NULL;
-  jthrowable obj = NULL;
-
-  len = FormatMessageW(
-    FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM,
-    NULL, *(DWORD*) (&errnum), // reinterpret cast
-    MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
-    (LPWSTR) &buffer, 0, NULL);
-
-  if (len > 0)
-  {
-    message = (const jchar*) buffer;
-  }
-  else
-  {
-    message = (const jchar*) L"Unknown error.";
-  }
-
-  if ((jstr_message = (*env)->NewString(env, message, len)) == NULL)
-    goto err;
-  LocalFree(buffer);
-  buffer = NULL; // Set buffer to NULL to avoid double free
-
-  obj = (jthrowable)(*env)->NewObject(env, nioe_clazz, nioe_ctor,
-    jstr_message, errnum);
-  if (obj == NULL) goto err;
-
-  (*env)->Throw(env, obj);
-  return;
-
-err:
-  if (jstr_message != NULL)
-    (*env)->ReleaseStringChars(env, jstr_message, message);
-  LocalFree(buffer);
-  return;
-#endif
-}
-
-#ifdef UNIX
-/*
- * Determine how big a buffer we need for reentrant getpwuid_r and getgrnam_r
- */
-ssize_t get_pw_buflen() {
-  long ret = 0;
-  #ifdef _SC_GETPW_R_SIZE_MAX
-  ret = sysconf(_SC_GETPW_R_SIZE_MAX);
-  #endif
-  return (ret > 512) ? ret : 512;
-}
-#endif
-
-/*
- * Class:     org_apache_raft_io_nativeio_NativeIO_Windows
- * Method:    setFilePointer
- * Signature: (Ljava/io/FileDescriptor;JJ)J
- *
- * The "00024" in the function name is an artifact of how JNI encodes
- * special characters. U+0024 is '$'.
- */
-JNIEXPORT jlong JNICALL
-Java_org_apache_raft_io_nativeio_NativeIO_00024Windows_setFilePointer
-  (JNIEnv *env, jclass clazz, jobject fd_object, jlong distanceToMove, jlong 
moveMethod)
-{
-#ifdef UNIX
-  THROW(env, "java/io/IOException",
-    "The function setFilePointer(FileDescriptor) is not supported on Unix");
-  return (jlong)(intptr_t)NULL;
-#endif
-
-#ifdef WINDOWS
-  DWORD distanceToMoveLow = (DWORD) distanceToMove;
-  LONG distanceToMoveHigh = (LONG) (distanceToMove >> 32);
-  DWORD distanceMovedLow = 0;
-  HANDLE hFile = (HANDLE) fd_get(env, fd_object);
-  PASS_EXCEPTIONS_GOTO(env, cleanup);
-
-  distanceMovedLow = SetFilePointer(hFile,
-    distanceToMoveLow, &distanceToMoveHigh, (DWORD) moveMethod);
-
-  if (distanceMovedLow == INVALID_SET_FILE_POINTER) {
-     throw_ioe(env, GetLastError());
-     return -1;
-  }
-
-cleanup:
-
-  return ((jlong) distanceToMoveHigh << 32) | (jlong) distanceMovedLow;
-#endif
-}
-
-/*
- * Class:     org_apache_raft_io_nativeio_NativeIO_Windows
- * Method:    access0
- * Signature: (Ljava/lang/String;I)Z
- */
-JNIEXPORT jboolean JNICALL 
Java_org_apache_raft_io_nativeio_NativeIO_00024Windows_access0
-  (JNIEnv *env, jclass clazz, jstring jpath, jint jaccess)
-{
-#ifdef UNIX
-  THROW(env, "java/io/IOException",
-    "The function access0(path, access) is not supported on Unix");
-  return (jlong)(intptr_t)NULL;
-#endif
-
-#ifdef WINDOWS
-  LPCWSTR path = NULL;
-  DWORD dwRtnCode = ERROR_SUCCESS;
-  ACCESS_MASK access = (ACCESS_MASK)jaccess;
-  BOOL allowed = FALSE;
-
-  path = (LPCWSTR) (*env)->GetStringChars(env, jpath, NULL);
-  if (!path) goto cleanup; // exception was thrown
-
-  dwRtnCode = CheckAccessForCurrentUser(path, access, &allowed);
-  if (dwRtnCode != ERROR_SUCCESS) {
-    throw_ioe(env, dwRtnCode);
-    goto cleanup;
-  }
-
-cleanup:
-  if (path) (*env)->ReleaseStringChars(env, jpath, path);
-
-  return (jboolean)allowed;
-#endif
-}
-
-/*
- * Class:     org_apache_raft_io_nativeio_NativeIO_Windows
- * Method:    extendWorkingSetSize
- * Signature: (J)V
- *
- * The "00024" in the function name is an artifact of how JNI encodes
- * special characters. U+0024 is '$'.
- */
-JNIEXPORT void JNICALL
-Java_org_apache_raft_io_nativeio_NativeIO_00024Windows_extendWorkingSetSize(
-  JNIEnv *env, jclass clazz, jlong delta)
-{
-#ifdef UNIX
-  THROW(env, "java/io/IOException",
-    "The function extendWorkingSetSize(delta) is not supported on Unix");
-#endif
-
-#ifdef WINDOWS
-  SIZE_T min, max;
-  HANDLE hProcess = GetCurrentProcess();
-  if (!GetProcessWorkingSetSize(hProcess, &min, &max)) {
-    throw_ioe(env, GetLastError());
-    return;
-  }
-  if (!SetProcessWorkingSetSizeEx(hProcess, min + delta, max + delta,
-      QUOTA_LIMITS_HARDWS_MIN_DISABLE | QUOTA_LIMITS_HARDWS_MAX_DISABLE)) {
-    throw_ioe(env, GetLastError());
-    return;
-  }
-  // There is no need to call CloseHandle on the pseudo-handle returned from
-  // GetCurrentProcess.
-#endif
-}
-
-JNIEXPORT void JNICALL 
-Java_org_apache_raft_io_nativeio_NativeIO_renameTo0(JNIEnv *env, 
-jclass clazz, jstring jsrc, jstring jdst)
-{
-#ifdef UNIX
-  const char *src = NULL, *dst = NULL;
-  
-  src = (*env)->GetStringUTFChars(env, jsrc, NULL);
-  if (!src) goto done; // exception was thrown
-  dst = (*env)->GetStringUTFChars(env, jdst, NULL);
-  if (!dst) goto done; // exception was thrown
-  if (rename(src, dst)) {
-    throw_ioe(env, errno);
-  }
-
-done:
-  if (src) (*env)->ReleaseStringUTFChars(env, jsrc, src);
-  if (dst) (*env)->ReleaseStringUTFChars(env, jdst, dst);
-#endif
-
-#ifdef WINDOWS
-  LPCWSTR src = NULL, dst = NULL;
-
-  src = (LPCWSTR) (*env)->GetStringChars(env, jsrc, NULL);
-  if (!src) goto done; // exception was thrown
-  dst = (LPCWSTR) (*env)->GetStringChars(env, jdst, NULL);
-  if (!dst) goto done; // exception was thrown
-  if (!MoveFile(src, dst)) {
-    throw_ioe(env, GetLastError());
-  }
-
-done:
-  if (src) (*env)->ReleaseStringChars(env, jsrc, src);
-  if (dst) (*env)->ReleaseStringChars(env, jdst, dst);
-#endif
-}
-
-JNIEXPORT jlong JNICALL
-Java_org_apache_raft_io_nativeio_NativeIO_getMemlockLimit0(
-JNIEnv *env, jclass clazz)
-{
-#ifdef RLIMIT_MEMLOCK
-  struct rlimit rlim;
-  int rc = getrlimit(RLIMIT_MEMLOCK, &rlim);
-  if (rc != 0) {
-    throw_ioe(env, errno);
-    return 0;
-  }
-  return (rlim.rlim_cur == RLIM_INFINITY) ?
-    INT64_MAX : rlim.rlim_cur;
-#else
-  return 0;
-#endif
-}
-
-JNIEXPORT void JNICALL
-Java_org_apache_raft_io_nativeio_NativeIO_copyFileUnbuffered0(
-JNIEnv *env, jclass clazz, jstring jsrc, jstring jdst)
-{
-#ifdef UNIX
-  THROW(env, "java/lang/UnsupportedOperationException",
-    "The function copyFileUnbuffered0 should not be used on Unix. Use 
FileChannel#transferTo instead.");
-#endif
-
-#ifdef WINDOWS
-  LPCWSTR src = NULL, dst = NULL;
-
-  src = (LPCWSTR) (*env)->GetStringChars(env, jsrc, NULL);
-  if (!src) goto cleanup; // exception was thrown
-  dst = (LPCWSTR) (*env)->GetStringChars(env, jdst, NULL);
-  if (!dst) goto cleanup; // exception was thrown
-  if (!CopyFileEx(src, dst, NULL, NULL, NULL, COPY_FILE_NO_BUFFERING)) {
-    throw_ioe(env, GetLastError());
-  }
-
-cleanup:
-  if (src) (*env)->ReleaseStringChars(env, jsrc, src);
-  if (dst) (*env)->ReleaseStringChars(env, jdst, dst);
-#endif
-}
-
-/**
- * vim: sw=2: ts=2: et:
- */

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