/*
 * Copyright (c) 2010, 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.
 */

/* @test
 * @bug 4473201 4696726 4652234 4482298 4784385 4966197 4267354 5015668 6911753
 * @summary Check that registered charsets are actually registered
 */

import java.io.*;
import java.nio.*;
import java.nio.charset.*;
import java.util.*;

public class RegisteredCharsets {

    static String [] ianaRegistered = {
                            "US-ASCII", "UTF8", "Big5", "EUC-JP",
                            "GBK", "GB18030", "ISO-2022-KR", "ISO-2022-JP",
                            "GB2312",  // IANA preferred name for "EUC-CN"
                            "ISO-8859-1", "ISO-8859-2", "ISO-8859-3",
                            "ISO-8859-4", "ISO-8859-5", "ISO-8859-6",
                            "ISO-8859-7", "ISO-8859-8", "ISO-8859-9",
                            "ISO-8859-13", "ISO-8859-15", "windows-1251",
                            "windows-1252", "windows-1253", "windows-1254",
                            "windows-1255", "windows-1256", "windows-31j",
                            "Shift_JIS", "JIS_X0201", "JIS_X0212-1990",
                            "TIS-620", "Big5-HKSCS",
                            "ISO-2022-CN",
                            "IBM850",
                            "IBM852",
                            "IBM855",
                            "IBM857",
                            "IBM860",
                            "IBM861",
                            "IBM862",
                            "IBM863",
                            "IBM864",
                            "IBM865",
                            "IBM866",
                            "IBM868",
                            "IBM869",
                            "IBM437",
                            "IBM775",
                            "IBM037",
                            "IBM1026",
                            "IBM273",
                            "IBM277",
                            "IBM278",
                            "IBM280",
                            "IBM284",
                            "IBM285",
                            "IBM297",
                            "IBM420",
                            "IBM424",
                            "IBM500",
                            "IBM-Thai",
                            "IBM870",
                            "IBM871",
                            "IBM918",
                            "IBM1047",
                            "IBM01140",
                            "IBM01141",
                            "IBM01142",
                            "IBM01143",
                            "IBM01144",
                            "IBM01145",
                            "IBM01146",
                            "IBM01147",
                            "IBM01148",
                            "IBM01149",
                            "IBM00858" };

    static String [] ianaUnRegistered = {
                            "x-EUC-TW", "x-ISCII91",
                            "x-windows-949", "x-windows-950",
                            "x-mswin-936", "x-JIS0208",
                            "x-ISO-8859-11",
                            "x-windows-874",
                            "x-PCK", "x-JISAutoDetect", "x-Johab",
                            "x-MS950-HKSCS",
                            "x-Big5-Solaris",
                            "x-ISO-2022-CN-CNS",
                            "x-ISO-2022-CN-GB",
                            "x-MacArabic",
                            "x-MacCentralEurope",
                            "x-MacCroatian",
                            "x-MacCyrillic",
                            "x-MacDingbat",
                            "x-MacGreek",
                            "x-MacHebrew",
                            "x-MacIceland",
                            "x-MacRoman",
                            "x-MacRomania",
                            "x-MacSymbol",
                            "x-MacThai",
                            "x-MacTurkish",
                            "x-MacUkraine",
                            "x-IBM942",
                            "x-IBM942C",
                            "x-IBM943",
                            "x-IBM943C",
                            "x-IBM948",
                            "x-IBM950",
                            "x-IBM930",
                            "x-IBM935",
                            "x-IBM937",
                            "x-IBM856",
                            "x-IBM874",
                            "x-IBM737",
                            "x-IBM1006",
                            "x-IBM1046",
                            "x-IBM1098",
                            "x-IBM1025",
                            "x-IBM1112",
                            "x-IBM1122",
                            "x-IBM1123",
                            "x-IBM1124",
                            "x-IBM875",
                            "x-IBM921",
                            "x-IBM922",
                            "x-IBM1097",
                            "x-IBM949",
                            "x-IBM949C",
                            "x-IBM939",
                            "x-IBM933",
                            "x-IBM1381",
                            "x-IBM1383",
                            "x-IBM970",
                            "x-IBM964",
                            "x-IBM33722",
                            "x-IBM1006",
                            "x-IBM1046",
                            "x-IBM1097",
                            "x-IBM1098",
                            "x-IBM1112",
                            "x-IBM1122",
                            "x-IBM1123",
                            "x-IBM1124",
                            "x-IBM33722",
                            "x-IBM737",
                            "x-IBM856",
                            "x-IBM874",
                            "x-IBM875",
                            "x-IBM922",
                            "x-IBM933",
                            "x-IBM964" };

    static void check(String csn, boolean testRegistered) throws Exception {
        if (!Charset.forName(csn).isRegistered() && testRegistered)
                throw new Exception("Not registered: " + csn);
        else if (Charset.forName(csn).isRegistered() && !testRegistered)
                throw new Exception("Registered: " + csn + "should be unregistered");
    }

    static void aliasCheck(String canonicalName, String[] aliasNames) throws Exception
    {
        for (int k = 0; k < aliasNames.length; k++ ) {
            Charset cs = Charset.forName(aliasNames[k]);
            if (!cs.name().equals(canonicalName)) {
                throw new Exception("Unexpected Canonical name " + canonicalName);
            }
        }
    }

    public static void main(String[] args) throws Exception {

        for (int i = 0; i < ianaRegistered.length ; i++)
            check(ianaRegistered[i], true);

        for (int i = 0; i < ianaUnRegistered.length ; i++)
            check(ianaUnRegistered[i], false);

        // Check aliases registered with IANA for all NIO supported
        // Charset implementations.
        //
        // The aliases below are in sync with the IANA registered charset
        // document at: http://www.iana.org/assignments/character-sets
        // Last updated 7/25/2002

        aliasCheck("US-ASCII",
                new String[] {"ascii","ANSI_X3.4-1968",
                "iso-ir-6","ANSI_X3.4-1986", "ISO_646.irv:1991",
                "ASCII", "ISO646-US","us","IBM367","cp367",
                "csASCII", "default"});

        aliasCheck("UTF-8",
                new String[] {
                    "UTF8",
                    "unicode-1-1-utf-8"
                });

        aliasCheck("UTF-16",
                new String[] {
                    "UTF_16",
                    "utf16"
                });

        aliasCheck("UTF-16BE",
                new String[] {
                    "UTF_16BE",
                    "ISO-10646-UCS-2",
                    "X-UTF-16BE",
                    "UnicodeBigUnmarked"
                });

        aliasCheck("UTF-16LE",
                new String[] {
                    "UTF_16LE",
                    "X-UTF-16LE",
                    "UnicodeLittleUnmarked"
                });

        aliasCheck("Big5",
                new String[] {
                    "csBig5"
                });

        aliasCheck("Big5-HKSCS",
                new String[] {
                    "Big5_HKSCS",
                    "big5hk",
                    "big5-hkscs",
                    "big5hkscs"
                });

        aliasCheck("x-MS950-HKSCS",
                new String[] {
                    "MS950_HKSCS"
                });

        aliasCheck("GB18030",
                new String[] {
                    "gb18030-2000"
                });

        aliasCheck("ISO-2022-KR", new String[] {"csISO2022KR"});
        aliasCheck("ISO-2022-JP", new String[] {"csISO2022JP"});
        aliasCheck("EUC-KR", new String[] { "csEUCKR"});
        aliasCheck("ISO-8859-1",
                new String[] {

                    // IANA aliases
                    "iso-ir-100",
                    "ISO_8859-1",
                    "latin1",
                    "l1",
                    "IBM819",
                    "cp819",
                    "csISOLatin1",

                    // JDK historical aliases
                    "819",
                    "IBM-819",
                    "ISO8859_1",
                    "ISO_8859-1:1987",
                    "ISO_8859_1",
                    "8859_1",
                    "ISO8859-1",

                });

        aliasCheck("ISO-8859-2",
            new String[] {
                "ISO_8859-2",
                "ISO_8859-2:1987",
                "iso-ir-101",
                "latin2",
                "l2",
                "8859_2",
                "iso_8859-2:1987",
                "iso8859-2",
                "ibm912",
                "ibm-912",
                "cp912",
                "912",
                "csISOLatin2"});

        aliasCheck("ISO-8859-3",
                new String[] {"latin3",
                "ISO_8859-3:1988",
                "iso-ir-109",
                "l3",
                "8859_3",
                "iso_8859-3:1988",
                "iso8859-3",
                "ibm913",
                "ibm-913",
                "cp913",
                "913",
                "csISOLatin3"});

        aliasCheck("ISO-8859-4",
                new String[] {"csISOLatin4",
                    "ISO_8859-4:1988",
                    "iso-ir-110",
                    "latin4",
                    "8859_4",
                    "iso_8859-4:1988",
                    "iso8859-4",
                    "ibm914",
                    "ibm-914",
                    "cp914",
                    "914",
                    "l4"});

        aliasCheck("ISO-8859-5",
                new String[] {
                    "iso8859_5", // JDK historical
                    "8859_5",
                    "iso-ir-144",
                    "ISO_8859-5",
                    "ISO_8859-5:1988",
                    "ISO8859-5",
                    "cyrillic",
                    "ibm915",
                    "ibm-915",
                    "915",
                    "cp915",
                    "csISOLatinCyrillic"
                });

        aliasCheck("ISO-8859-6",
                new String[] {"ISO_8859-6:1987",
                "iso-ir-127",
                "ISO_8859-6",
                "ECMA-114",
                "ASMO-708",
                "arabic",
                "8859_6",
                "iso_8859-6:1987",
                "iso8859-6",
                "ibm1089",
                "ibm-1089",
                "cp1089",
                "1089",
                "csISOLatinArabic"});

        aliasCheck("ISO-8859-7",
                new String[] {"ISO_8859-7:1987",
                "iso-ir-126",
                "ISO_8859-7",
                "ELOT_928",
                "ECMA-118",
                "greek",
                "greek8",
                "8859_7",
                "iso_8859-7:1987",
                "iso8859-7",
                "ibm813",
                "ibm-813",
                "cp813",
                "813",
                "csISOLatinGreek"});

        aliasCheck("ISO-8859-8",
                new String[] {
                "ISO_8859-8:1988",
                "iso-ir-138",
                "ISO_8859-8",
                "hebrew",
                "8859_8",
                "iso_8859-8:1988",
                "iso8859-8",
                "ibm916",
                "ibm-916",
                "cp916",
                "916",
                "csISOLatinHebrew"});

        aliasCheck("ISO-8859-9",
                new String[] {"ISO_8859-9:1989",
                "iso-ir-148",
                "ISO_8859-9",
                "latin5",
                "l5",
                "8859_9",
                "iso8859-9",
                "ibm920",
                "ibm-920",
                "cp920",
                "920",
                "csISOLatin5"});

        aliasCheck("ISO-8859-13",
                new String[] {
                    "iso8859_13", // JDK historical
                    "iso_8859-13",
                    "8859_13",
                    "ISO8859-13"
                });

        aliasCheck("ISO-8859-15",
                new String[] {
                    // IANA alias
                    "ISO_8859-15",
                    // JDK historical aliases
                    "8859_15",
                    "ISO-8859-15",
                    "ISO_8859-15",
                    "ISO8859-15",
                    "ISO8859_15",
                    "IBM923",
                    "IBM-923",
                    "cp923",
                    "923",
                    "LATIN0",
                    "LATIN9",
                    "L9",
                    "csISOlatin0",
                    "csISOlatin9",
                    "ISO8859_15_FDIS"

                });

        aliasCheck("JIS_X0212-1990",
                new String[] {
                "iso-ir-159",
                "csISO159JISX02121990"});

        aliasCheck("JIS_X0201",
                new String[]{
                "X0201",
                "csHalfWidthKatakana"});

        aliasCheck("KOI8-R",
                new String[] {
                "KOI8_R",
                "csKOI8R"});

        aliasCheck("GBK",
                new String[] {
                "windows-936"});

        aliasCheck("Shift_JIS",
                new String[] {
                "MS_Kanji",
                "csShiftJIS"});

        aliasCheck("EUC-JP",
                new String[] {
                "Extended_UNIX_Code_Packed_Format_for_Japanese",
                "csEUCPkdFmtJapanese"});

        aliasCheck("Big5", new String[] {"csBig5"});

        aliasCheck("windows-31j", new String[] {"csWindows31J"});

        aliasCheck("x-iso-8859-11",
                    new String[] { "iso-8859-11", "iso8859_11" });

        aliasCheck("windows-1250",
                new String[] {
                    "cp1250",
                    "cp5346"
                });

        aliasCheck("windows-1251",
                new String[] {
                    "cp1251",
                    "cp5347",
                    "ansi-1251"
                });

        aliasCheck("windows-1252",
                new String[] {
                    "cp1252",
                    "cp5348"
                });

        aliasCheck("windows-1253",
                new String[] {
                    "cp1253",
                    "cp5349"
                });

        aliasCheck("windows-1254",
                new String[] {
                    "cp1254",
                    "cp5350"
                });

        aliasCheck("windows-1255",
                new String[] {
                    "cp1255"
                });

        aliasCheck("windows-1256",
                new String[] {
                    "cp1256"
                });

        aliasCheck("windows-1257",
                new String[] {
                    "cp1257",
                    "cp5353"
                });

        aliasCheck("windows-1258",
                new String[] {
                    "cp1258"
                });

        aliasCheck("x-windows-874",
                new String[] {
                    "ms874", "ms-874", "windows-874" });

        aliasCheck("GB2312",
                new String[] {
                    "x-EUC-CN",
                    "gb2312-80",
                    "gb2312-1980",
                    "euc-cn",
                    "euccn" });

        aliasCheck("x-IBM942" ,
                new String[] {
                    "cp942", // JDK historical
                    "ibm942",
                    "ibm-942",
                    "942"
                });

        aliasCheck("x-IBM942C" ,
                new String[] {
                    "cp942C", // JDK historical
                    "ibm942C",
                    "ibm-942C",
                    "942C"
                } );

        aliasCheck("x-IBM943" ,
                new String[] {
                    "cp943", // JDK historical
                    "ibm943",
                    "ibm-943",
                    "943"
                } );

        aliasCheck("x-IBM943C" ,
                new String[] {
                    "cp943c", // JDK historical
                    "ibm943C",
                    "ibm-943C",
                    "943C"
                } );

        aliasCheck("x-IBM948" ,
                new String[] {
                    "cp948", // JDK historical
                    "ibm948",
                    "ibm-948",
                    "948"
                } );

        aliasCheck("x-IBM950" ,
                new String[] {
                    "cp950", // JDK historical
                    "ibm950",
                    "ibm-950",
                    "950"
                } );

        aliasCheck("x-IBM930" ,
                new String[] {
                    "cp930", // JDK historical
                    "ibm930",
                    "ibm-930",
                    "930"
                } );

        aliasCheck("x-IBM935" ,
                new String[] {
                    "cp935", // JDK historical
                    "ibm935",
                    "ibm-935",
                    "935"
                } );

        aliasCheck("x-IBM937" ,
                new String[] {
                    "cp937", // JDK historical
                    "ibm937",
                    "ibm-937",
                    "937"
                } );

        aliasCheck("IBM850" ,
                new String[] {
                    "cp850", // JDK historical
                    "ibm-850",
                    "ibm850",
                    "850",
                    "cspc850multilingual"
                } );

        aliasCheck("IBM852" ,
                new String[] {
                    "cp852", // JDK historical
                    "ibm852",
                    "ibm-852",
                    "852",
                    "csPCp852"
                } );

        aliasCheck("IBM855" ,
                new String[] {
                    "cp855", // JDK historical
                    "ibm-855",
                    "ibm855",
                    "855",
                    "cspcp855"
                } );

        aliasCheck("x-IBM856" ,
                new String[] {
                    "cp856", // JDK historical
                    "ibm-856",
                    "ibm856",
                    "856"
                } );

        aliasCheck("IBM857" ,
                new String[] {
                    "cp857", // JDK historical
                    "ibm857",
                    "ibm-857",
                    "857",
                    "csIBM857"
                } );

        aliasCheck("IBM860" ,
                new String[] {
                    "cp860", // JDK historical
                    "ibm860",
                    "ibm-860",
                    "860",
                    "csIBM860"
                } );
        aliasCheck("IBM861" ,
                new String[] {
                    "cp861", // JDK historical
                    "ibm861",
                    "ibm-861",
                    "861",
                    "csIBM861"
                } );

        aliasCheck("IBM862" ,
                new String[] {
                    "cp862", // JDK historical
                    "ibm862",
                    "ibm-862",
                    "862",
                    "csIBM862"
                } );

        aliasCheck("IBM863" ,
                new String[] {
                    "cp863", // JDK historical
                    "ibm863",
                    "ibm-863",
                    "863",
                    "csIBM863"
                } );

        aliasCheck("IBM864" ,
                new String[] {
                    "cp864", // JDK historical
                    "ibm864",
                    "ibm-864",
                    "864",
                    "csIBM864"
                } );

        aliasCheck("IBM865" ,
                new String[] {
                    "cp865", // JDK historical
                    "ibm865",
                    "ibm-865",
                    "865",
                    "csIBM865"
                } );

        aliasCheck("IBM866" , new String[] {
                    "cp866", // JDK historical
                    "ibm866",
                    "ibm-866",
                    "866",
                    "csIBM866"
                } );
        aliasCheck("IBM868" ,
                new String[] {
                    "cp868", // JDK historical
                    "ibm868",
                    "ibm-868",
                    "868",
                    "cp-ar",
                    "csIBM868"
                } );

        aliasCheck("IBM869" ,
                new String[] {
                    "cp869", // JDK historical
                    "ibm869",
                    "ibm-869",
                    "869",
                    "cp-gr",
                    "csIBM869"
                } );

        aliasCheck("IBM437" ,
                new String[] {
                    "cp437", // JDK historical
                    "ibm437",
                    "ibm-437",
                    "437",
                    "cspc8codepage437",
                    "windows-437"
                } );

        aliasCheck("x-IBM874" ,
                new String[] {
                    "cp874", // JDK historical
                    "ibm874",
                    "ibm-874",
                    "874"
                } );
        aliasCheck("x-IBM737" ,
                new String[] {
                    "cp737", // JDK historical
                    "ibm737",
                    "ibm-737",
                    "737"
                } );

        aliasCheck("IBM775" ,
                new String[] {
                    "cp775", // JDK historical
                    "ibm775",
                    "ibm-775",
                    "775"
                } );

        aliasCheck("x-IBM921" ,
                new String[] {
                    "cp921", // JDK historical
                    "ibm921",
                    "ibm-921",
                    "921"
                } );

        aliasCheck("x-IBM1006" ,
                new String[] {
                    "cp1006", // JDK historical
                    "ibm1006",
                    "ibm-1006",
                    "1006"
                } );

        aliasCheck("x-IBM1046" ,
                new String[] {
                    "cp1046", // JDK historical
                    "ibm1046",
                    "ibm-1046",
                    "1046"
                } );

        aliasCheck("IBM1047" ,
                new String[] {
                    "cp1047", // JDK historical
                    "ibm-1047",
                    "1047"
                } );

        aliasCheck("x-IBM1098" ,
                new String[] {
                    "cp1098", // JDK historical
                    "ibm1098",
                    "ibm-1098",
                    "1098",
                } );

        aliasCheck("IBM037" ,
                new String[] {
                    "cp037", // JDK historical
                    "ibm037",
                    "csIBM037",
                    "cs-ebcdic-cp-us",
                    "cs-ebcdic-cp-ca",
                    "cs-ebcdic-cp-wt",
                    "cs-ebcdic-cp-nl",
                    "ibm-037",
                    "ibm-37",
                    "cpibm37",
                    "037"
                } );

        aliasCheck("x-IBM1025" ,
                new String[] {
                    "cp1025", // JDK historical
                    "ibm1025",
                    "ibm-1025",
                    "1025"
                } );

        aliasCheck("IBM1026" ,
                new String[] {
                    "cp1026", // JDK historical
                    "ibm1026",
                    "ibm-1026",
                    "1026"
                } );

        aliasCheck("x-IBM1112" ,
                new String[] {
                    "cp1112", // JDK historical
                    "ibm1112",
                    "ibm-1112",
                    "1112"
                } );

        aliasCheck("x-IBM1122" ,
                new String[] {
                    "cp1122", // JDK historical
                    "ibm1122",
                    "ibm-1122",
                    "1122"
                } );

        aliasCheck("x-IBM1123" ,
                new String[] {
                    "cp1123", // JDK historical
                    "ibm1123",
                    "ibm-1123",
                    "1123"
                } );

        aliasCheck("x-IBM1124" ,
                new String[] {
                    "cp1124", // JDK historical
                    "ibm1124",
                    "ibm-1124",
                    "1124"
                } );

        aliasCheck("IBM273" ,
                new String[] {
                    "cp273", // JDK historical
                    "ibm273",
                    "ibm-273",
                    "273"
                } );

        aliasCheck("IBM277" ,
                new String[] {
                    "cp277", // JDK historical
                    "ibm277",
                    "ibm-277",
                    "277"
                } );

        aliasCheck("IBM278" ,
                new String[] {
                    "cp278", // JDK historical
                    "ibm278",
                    "ibm-278",
                    "278",
                    "ebcdic-sv",
                    "ebcdic-cp-se",
                    "csIBM278"
                } );

        aliasCheck("IBM280" ,
                new String[] {
                    "cp280", // JDK historical
                    "ibm280",
                    "ibm-280",
                    "280"
                } );

        aliasCheck("IBM284" ,
                new String[] {
                    "cp284", // JDK historical
                    "ibm284",
                    "ibm-284",
                    "284",
                    "csIBM284",
                    "cpibm284"
                } );

        aliasCheck("IBM285" ,
                new String[] {
                    "cp285", // JDK historical
                    "ibm285",
                    "ibm-285",
                    "285",
                    "ebcdic-cp-gb",
                    "ebcdic-gb",
                    "csIBM285",
                    "cpibm285"
                } );

        aliasCheck("IBM297" ,
                new String[] {
                    "cp297", // JDK historical
                    "ibm297",
                    "ibm-297",
                    "297",
                    "ebcdic-cp-fr",
                    "cpibm297",
                    "csIBM297",
                } );

        aliasCheck("IBM420" ,
                new String[] {
                    "cp420", // JDK historical
                    "ibm420",
                    "ibm-420",
                    "ebcdic-cp-ar1",
                    "420",
                    "csIBM420"
                } );

        aliasCheck("IBM424" ,
                new String[] {
                    "cp424", // JDK historical
                    "ibm424",
                    "ibm-424",
                    "424",
                    "ebcdic-cp-he",
                    "csIBM424"
                } );

        aliasCheck("IBM500" ,
                new String[] {
                    "cp500", // JDK historical
                    "ibm500",
                    "ibm-500",
                    "500",
                    "ebcdic-cp-ch",
                    "ebcdic-cp-bh",
                    "csIBM500"
                } );

        aliasCheck("IBM-Thai" ,
                new String[] {
                    "cp838", // JDK historical
                    "ibm838",
                    "ibm-838",
                    "ibm838",
                    "838"
                } );

        aliasCheck("IBM870" ,
                new String[] {
                    "cp870", // JDK historical
                    "ibm870",
                    "ibm-870",
                    "870",
                    "ebcdic-cp-roece",
                    "ebcdic-cp-yu",
                    "csIBM870"
                } );

        aliasCheck("IBM871" ,
                new String[] {
                    "cp871", // JDK historical
                    "ibm871",
                    "ibm-871",
                    "871",
                    "ebcdic-cp-is",
                    "csIBM871"
                } );

        aliasCheck("x-IBM875" ,
                new String[] {
                    "cp875", // JDK historical
                    "ibm875",
                    "ibm-875",
                    "875"
                } );

        aliasCheck("IBM918" ,
                new String[] {
                    "cp918", // JDK historical
                    "ibm-918",
                    "918",
                    "ebcdic-cp-ar2"
                } );

        aliasCheck("x-IBM922" ,
                new String[] {
                    "cp922", // JDK historical
                    "ibm922",
                    "ibm-922",
                    "922"
                } );

        aliasCheck("x-IBM1097" ,
                new String[] {
                    "cp1097", // JDK historical
                    "ibm1097",
                    "ibm-1097",
                    "1097"
                } );

        aliasCheck("x-IBM949" ,
                new String[] {
                    "cp949", // JDK historical
                    "ibm949",
                    "ibm-949",
                    "949"
                } );

        aliasCheck("x-IBM949C" ,
                new String[] {
                    "cp949C", // JDK historical
                    "ibm949C",
                    "ibm-949C",
                    "949C"
                } );

        aliasCheck("x-IBM939" ,
                new String[] {
                    "cp939", // JDK historical
                    "ibm939",
                    "ibm-939",
                    "939"
                } );

        aliasCheck("x-IBM933" ,
                new String[] {
                    "cp933", // JDK historical
                    "ibm933",
                    "ibm-933",
                    "933"
                } );

        aliasCheck("x-IBM1381" ,
                new String[] {
                    "cp1381", // JDK historical
                    "ibm1381",
                    "ibm-1381",
                    "1381"
                } );

        aliasCheck("x-IBM1383" ,
                new String[] {
                    "cp1383", // JDK historical
                    "ibm1383",
                    "ibm-1383",
                    "1383"
                } );

        aliasCheck("x-IBM970" ,
                new String[] {
                    "cp970", // JDK historical
                    "ibm970",
                    "ibm-970",
                    "ibm-eucKR",
                    "970"
                } );

        aliasCheck("x-IBM964" ,
                new String[] {
                    "cp964", // JDK historical
                    "ibm964",
                    "ibm-964",
                    "964"
                } );

        aliasCheck("x-IBM33722" ,
                new String[] {
                    "cp33722", // JDK historical
                    "ibm33722",
                    "ibm-33722",
                    "ibm-5050", // from IBM alias list
                    "ibm-33722_vascii_vpua", // from IBM alias list
                    "33722"
                } );

        aliasCheck("IBM01140" ,
                new String[] {
                    "cp1140", // JDK historical
                    "ccsid01140",
                    "cp01140",
                    // "ebcdic-us-037+euro"
                } );

        aliasCheck("IBM01141" ,
                new String[] {
                    "cp1141", // JDK historical
                    "ccsid01141",
                    "cp01141",
                    // "ebcdic-de-273+euro"
                } );

        aliasCheck("IBM01142" ,
                new String[] {
                    "cp1142", // JDK historical
                    "ccsid01142",
                    "cp01142",
                    // "ebcdic-no-277+euro",
                    // "ebcdic-dk-277+euro"
                } );

        aliasCheck("IBM01143" ,
                new String[] {
                    "cp1143", // JDK historical
                    "ccsid01143",
                    "cp01143",
                    // "ebcdic-fi-278+euro",
                    // "ebcdic-se-278+euro"
                } );

        aliasCheck("IBM01144" ,
                new String[] {
                    "cp1144", // JDK historical
                    "ccsid01144",
                    "cp01144",
                    // "ebcdic-it-280+euro"
                } );

        aliasCheck("IBM01145" ,
                new String[] {
                    "cp1145", // JDK historical
                    "ccsid01145",
                    "cp01145",
                    // "ebcdic-es-284+euro"
                } );

        aliasCheck("IBM01146" ,
                new String[] {
                    "cp1146", // JDK historical
                    "ccsid01146",
                    "cp01146",
                    // "ebcdic-gb-285+euro"
                } );

        aliasCheck("IBM01147" ,
                new String[] {
                    "cp1147", // JDK historical
                    "ccsid01147",
                    "cp01147",
                    // "ebcdic-fr-277+euro"
                } );

        aliasCheck("IBM01148" ,
                new String[] {
                    "cp1148", // JDK historical
                    "ccsid01148",
                    "cp01148",
                    // "ebcdic-international-500+euro"
                } );

        aliasCheck("IBM01149" ,
                new String[] {
                    "cp1149", // JDK historical
                    "ccsid01149",
                    "cp01149",
                    // "ebcdic-s-871+euro"
                } );

        aliasCheck("IBM00858" ,
                new String[] {
                    "cp858", // JDK historical
                    "ccsid00858",
                    "cp00858",
                    // "PC-Multilingual-850+euro"
                } );

        aliasCheck("x-MacRoman",
                new String[] {
                    "MacRoman" // JDK historical
                });

        aliasCheck("x-MacCentralEurope",
                new String[] {
                    "MacCentralEurope" // JDK historical
                });

        aliasCheck("x-MacCroatian",
                new String[] {
                    "MacCroatian" // JDK historical
                });


        aliasCheck("x-MacCroatian",
                new String[] {
                    "MacCroatian" // JDK historical
                });


        aliasCheck("x-MacGreek",
                new String[] {
                    "MacGreek" // JDK historical
                });

        aliasCheck("x-MacCyrillic",
                new String[] {
                    "MacCyrillic" // JDK historical
                });

        aliasCheck("x-MacUkraine",
                new String[] {
                    "MacUkraine" // JDK historical
                });

        aliasCheck("x-MacTurkish",
                new String[] {
                    "MacTurkish" // JDK historical
                });

        aliasCheck("x-MacArabic",
                new String[] {
                    "MacArabic" // JDK historical
                });

        aliasCheck("x-MacHebrew",
                new String[] {
                    "MacHebrew" // JDK historical
                });

        aliasCheck("x-MacIceland",
                new String[] {
                    "MacIceland" // JDK historical
                });

        aliasCheck("x-MacRomania",
                new String[] {
                    "MacRomania" // JDK historical
                });

        aliasCheck("x-MacThai",
                new String[] {
                    "MacThai" // JDK historical
                });

        aliasCheck("x-MacSymbol",
                new String[] {
                    "MacSymbol" // JDK historical
                });

        aliasCheck("x-MacDingbat",
                new String[] {
                    "MacDingbat" // JDK historical
                });
    }
}