[BUG] enum values can produce duplicates on generation

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Description

2 different values of an enum can result in the same generated name, which is invalid.
Exemple: "GMT+12" and "GMT-12" would both generate "GMT_12"

openapi-generator version

7.2.0-SNAPSHOT

OpenAPI declaration file content or url

Part of Apache Superset API

                    "timezone": {
                        "description": "A timezone string that represents the location of the timezone.",
                        "enum": [
                            "Africa/Abidjan",
                            "Africa/Accra",
                            "Africa/Addis_Ababa",
                            "Africa/Algiers",
                            "Africa/Asmara",
                            "Africa/Asmera",
                            "Africa/Bamako",
                            "Africa/Bangui",
                            "Africa/Banjul",
                            "Africa/Bissau",
                            "Africa/Blantyre",
                            "Africa/Brazzaville",
                            "Africa/Bujumbura",
                            "Africa/Cairo",
                            "Africa/Casablanca",
                            "Africa/Ceuta",
                            "Africa/Conakry",
                            "Africa/Dakar",
                            "Africa/Dar_es_Salaam",
                            "Africa/Djibouti",
                            "Africa/Douala",
                            "Africa/El_Aaiun",
                            "Africa/Freetown",
                            "Africa/Gaborone",
                            "Africa/Harare",
                            "Africa/Johannesburg",
                            "Africa/Juba",
                            "Africa/Kampala",
                            "Africa/Khartoum",
                            "Africa/Kigali",
                            "Africa/Kinshasa",
                            "Africa/Lagos",
                            "Africa/Libreville",
                            "Africa/Lome",
                            "Africa/Luanda",
                            "Africa/Lubumbashi",
                            "Africa/Lusaka",
                            "Africa/Malabo",
                            "Africa/Maputo",
                            "Africa/Maseru",
                            "Africa/Mbabane",
                            "Africa/Mogadishu",
                            "Africa/Monrovia",
                            "Africa/Nairobi",
                            "Africa/Ndjamena",
                            "Africa/Niamey",
                            "Africa/Nouakchott",
                            "Africa/Ouagadougou",
                            "Africa/Porto-Novo",
                            "Africa/Sao_Tome",
                            "Africa/Timbuktu",
                            "Africa/Tripoli",
                            "Africa/Tunis",
                            "Africa/Windhoek",
                            "America/Adak",
                            "America/Anchorage",
                            "America/Anguilla",
                            "America/Antigua",
                            "America/Araguaina",
                            "America/Argentina/Buenos_Aires",
                            "America/Argentina/Catamarca",
                            "America/Argentina/ComodRivadavia",
                            "America/Argentina/Cordoba",
                            "America/Argentina/Jujuy",
                            "America/Argentina/La_Rioja",
                            "America/Argentina/Mendoza",
                            "America/Argentina/Rio_Gallegos",
                            "America/Argentina/Salta",
                            "America/Argentina/San_Juan",
                            "America/Argentina/San_Luis",
                            "America/Argentina/Tucuman",
                            "America/Argentina/Ushuaia",
                            "America/Aruba",
                            "America/Asuncion",
                            "America/Atikokan",
                            "America/Atka",
                            "America/Bahia",
                            "America/Bahia_Banderas",
                            "America/Barbados",
                            "America/Belem",
                            "America/Belize",
                            "America/Blanc-Sablon",
                            "America/Boa_Vista",
                            "America/Bogota",
                            "America/Boise",
                            "America/Buenos_Aires",
                            "America/Cambridge_Bay",
                            "America/Campo_Grande",
                            "America/Cancun",
                            "America/Caracas",
                            "America/Catamarca",
                            "America/Cayenne",
                            "America/Cayman",
                            "America/Chicago",
                            "America/Chihuahua",
                            "America/Coral_Harbour",
                            "America/Cordoba",
                            "America/Costa_Rica",
                            "America/Creston",
                            "America/Cuiaba",
                            "America/Curacao",
                            "America/Danmarkshavn",
                            "America/Dawson",
                            "America/Dawson_Creek",
                            "America/Denver",
                            "America/Detroit",
                            "America/Dominica",
                            "America/Edmonton",
                            "America/Eirunepe",
                            "America/El_Salvador",
                            "America/Ensenada",
                            "America/Fort_Nelson",
                            "America/Fort_Wayne",
                            "America/Fortaleza",
                            "America/Glace_Bay",
                            "America/Godthab",
                            "America/Goose_Bay",
                            "America/Grand_Turk",
                            "America/Grenada",
                            "America/Guadeloupe",
                            "America/Guatemala",
                            "America/Guayaquil",
                            "America/Guyana",
                            "America/Halifax",
                            "America/Havana",
                            "America/Hermosillo",
                            "America/Indiana/Indianapolis",
                            "America/Indiana/Knox",
                            "America/Indiana/Marengo",
                            "America/Indiana/Petersburg",
                            "America/Indiana/Tell_City",
                            "America/Indiana/Vevay",
                            "America/Indiana/Vincennes",
                            "America/Indiana/Winamac",
                            "America/Indianapolis",
                            "America/Inuvik",
                            "America/Iqaluit",
                            "America/Jamaica",
                            "America/Jujuy",
                            "America/Juneau",
                            "America/Kentucky/Louisville",
                            "America/Kentucky/Monticello",
                            "America/Knox_IN",
                            "America/Kralendijk",
                            "America/La_Paz",
                            "America/Lima",
                            "America/Los_Angeles",
                            "America/Louisville",
                            "America/Lower_Princes",
                            "America/Maceio",
                            "America/Managua",
                            "America/Manaus",
                            "America/Marigot",
                            "America/Martinique",
                            "America/Matamoros",
                            "America/Mazatlan",
                            "America/Mendoza",
                            "America/Menominee",
                            "America/Merida",
                            "America/Metlakatla",
                            "America/Mexico_City",
                            "America/Miquelon",
                            "America/Moncton",
                            "America/Monterrey",
                            "America/Montevideo",
                            "America/Montreal",
                            "America/Montserrat",
                            "America/Nassau",
                            "America/New_York",
                            "America/Nipigon",
                            "America/Nome",
                            "America/Noronha",
                            "America/North_Dakota/Beulah",
                            "America/North_Dakota/Center",
                            "America/North_Dakota/New_Salem",
                            "America/Nuuk",
                            "America/Ojinaga",
                            "America/Panama",
                            "America/Pangnirtung",
                            "America/Paramaribo",
                            "America/Phoenix",
                            "America/Port-au-Prince",
                            "America/Port_of_Spain",
                            "America/Porto_Acre",
                            "America/Porto_Velho",
                            "America/Puerto_Rico",
                            "America/Punta_Arenas",
                            "America/Rainy_River",
                            "America/Rankin_Inlet",
                            "America/Recife",
                            "America/Regina",
                            "America/Resolute",
                            "America/Rio_Branco",
                            "America/Rosario",
                            "America/Santa_Isabel",
                            "America/Santarem",
                            "America/Santiago",
                            "America/Santo_Domingo",
                            "America/Sao_Paulo",
                            "America/Scoresbysund",
                            "America/Shiprock",
                            "America/Sitka",
                            "America/St_Barthelemy",
                            "America/St_Johns",
                            "America/St_Kitts",
                            "America/St_Lucia",
                            "America/St_Thomas",
                            "America/St_Vincent",
                            "America/Swift_Current",
                            "America/Tegucigalpa",
                            "America/Thule",
                            "America/Thunder_Bay",
                            "America/Tijuana",
                            "America/Toronto",
                            "America/Tortola",
                            "America/Vancouver",
                            "America/Virgin",
                            "America/Whitehorse",
                            "America/Winnipeg",
                            "America/Yakutat",
                            "America/Yellowknife",
                            "Antarctica/Casey",
                            "Antarctica/Davis",
                            "Antarctica/DumontDUrville",
                            "Antarctica/Macquarie",
                            "Antarctica/Mawson",
                            "Antarctica/McMurdo",
                            "Antarctica/Palmer",
                            "Antarctica/Rothera",
                            "Antarctica/South_Pole",
                            "Antarctica/Syowa",
                            "Antarctica/Troll",
                            "Antarctica/Vostok",
                            "Arctic/Longyearbyen",
                            "Asia/Aden",
                            "Asia/Almaty",
                            "Asia/Amman",
                            "Asia/Anadyr",
                            "Asia/Aqtau",
                            "Asia/Aqtobe",
                            "Asia/Ashgabat",
                            "Asia/Ashkhabad",
                            "Asia/Atyrau",
                            "Asia/Baghdad",
                            "Asia/Bahrain",
                            "Asia/Baku",
                            "Asia/Bangkok",
                            "Asia/Barnaul",
                            "Asia/Beirut",
                            "Asia/Bishkek",
                            "Asia/Brunei",
                            "Asia/Calcutta",
                            "Asia/Chita",
                            "Asia/Choibalsan",
                            "Asia/Chongqing",
                            "Asia/Chungking",
                            "Asia/Colombo",
                            "Asia/Dacca",
                            "Asia/Damascus",
                            "Asia/Dhaka",
                            "Asia/Dili",
                            "Asia/Dubai",
                            "Asia/Dushanbe",
                            "Asia/Famagusta",
                            "Asia/Gaza",
                            "Asia/Harbin",
                            "Asia/Hebron",
                            "Asia/Ho_Chi_Minh",
                            "Asia/Hong_Kong",
                            "Asia/Hovd",
                            "Asia/Irkutsk",
                            "Asia/Istanbul",
                            "Asia/Jakarta",
                            "Asia/Jayapura",
                            "Asia/Jerusalem",
                            "Asia/Kabul",
                            "Asia/Kamchatka",
                            "Asia/Karachi",
                            "Asia/Kashgar",
                            "Asia/Kathmandu",
                            "Asia/Katmandu",
                            "Asia/Khandyga",
                            "Asia/Kolkata",
                            "Asia/Krasnoyarsk",
                            "Asia/Kuala_Lumpur",
                            "Asia/Kuching",
                            "Asia/Kuwait",
                            "Asia/Macao",
                            "Asia/Macau",
                            "Asia/Magadan",
                            "Asia/Makassar",
                            "Asia/Manila",
                            "Asia/Muscat",
                            "Asia/Nicosia",
                            "Asia/Novokuznetsk",
                            "Asia/Novosibirsk",
                            "Asia/Omsk",
                            "Asia/Oral",
                            "Asia/Phnom_Penh",
                            "Asia/Pontianak",
                            "Asia/Pyongyang",
                            "Asia/Qatar",
                            "Asia/Qostanay",
                            "Asia/Qyzylorda",
                            "Asia/Rangoon",
                            "Asia/Riyadh",
                            "Asia/Saigon",
                            "Asia/Sakhalin",
                            "Asia/Samarkand",
                            "Asia/Seoul",
                            "Asia/Shanghai",
                            "Asia/Singapore",
                            "Asia/Srednekolymsk",
                            "Asia/Taipei",
                            "Asia/Tashkent",
                            "Asia/Tbilisi",
                            "Asia/Tehran",
                            "Asia/Tel_Aviv",
                            "Asia/Thimbu",
                            "Asia/Thimphu",
                            "Asia/Tokyo",
                            "Asia/Tomsk",
                            "Asia/Ujung_Pandang",
                            "Asia/Ulaanbaatar",
                            "Asia/Ulan_Bator",
                            "Asia/Urumqi",
                            "Asia/Ust-Nera",
                            "Asia/Vientiane",
                            "Asia/Vladivostok",
                            "Asia/Yakutsk",
                            "Asia/Yangon",
                            "Asia/Yekaterinburg",
                            "Asia/Yerevan",
                            "Atlantic/Azores",
                            "Atlantic/Bermuda",
                            "Atlantic/Canary",
                            "Atlantic/Cape_Verde",
                            "Atlantic/Faeroe",
                            "Atlantic/Faroe",
                            "Atlantic/Jan_Mayen",
                            "Atlantic/Madeira",
                            "Atlantic/Reykjavik",
                            "Atlantic/South_Georgia",
                            "Atlantic/St_Helena",
                            "Atlantic/Stanley",
                            "Australia/ACT",
                            "Australia/Adelaide",
                            "Australia/Brisbane",
                            "Australia/Broken_Hill",
                            "Australia/Canberra",
                            "Australia/Currie",
                            "Australia/Darwin",
                            "Australia/Eucla",
                            "Australia/Hobart",
                            "Australia/LHI",
                            "Australia/Lindeman",
                            "Australia/Lord_Howe",
                            "Australia/Melbourne",
                            "Australia/NSW",
                            "Australia/North",
                            "Australia/Perth",
                            "Australia/Queensland",
                            "Australia/South",
                            "Australia/Sydney",
                            "Australia/Tasmania",
                            "Australia/Victoria",
                            "Australia/West",
                            "Australia/Yancowinna",
                            "Brazil/Acre",
                            "Brazil/DeNoronha",
                            "Brazil/East",
                            "Brazil/West",
                            "CET",
                            "CST6CDT",
                            "Canada/Atlantic",
                            "Canada/Central",
                            "Canada/Eastern",
                            "Canada/Mountain",
                            "Canada/Newfoundland",
                            "Canada/Pacific",
                            "Canada/Saskatchewan",
                            "Canada/Yukon",
                            "Chile/Continental",
                            "Chile/EasterIsland",
                            "Cuba",
                            "EET",
                            "EST",
                            "EST5EDT",
                            "Egypt",
                            "Eire",
                            "Etc/GMT",
                            "Etc/GMT+0",
                            "Etc/GMT+1",
                            "Etc/GMT+10",
                            "Etc/GMT+11",
                            "Etc/GMT+12",
                            "Etc/GMT+2",
                            "Etc/GMT+3",
                            "Etc/GMT+4",
                            "Etc/GMT+5",
                            "Etc/GMT+6",
                            "Etc/GMT+7",
                            "Etc/GMT+8",
                            "Etc/GMT+9",
                            "Etc/GMT-0",
                            "Etc/GMT-1",
                            "Etc/GMT-10",
                            "Etc/GMT-11",
                            "Etc/GMT-12",
                            "Etc/GMT-13",
                            "Etc/GMT-14",
                            "Etc/GMT-2",
                            "Etc/GMT-3",
                            "Etc/GMT-4",
                            "Etc/GMT-5",
                            "Etc/GMT-6",
                            "Etc/GMT-7",
                            "Etc/GMT-8",
                            "Etc/GMT-9",
                            "Etc/GMT0",
                            "Etc/Greenwich",
                            "Etc/UCT",
                            "Etc/UTC",
                            "Etc/Universal",
                            "Etc/Zulu",
                            "Europe/Amsterdam",
                            "Europe/Andorra",
                            "Europe/Astrakhan",
                            "Europe/Athens",
                            "Europe/Belfast",
                            "Europe/Belgrade",
                            "Europe/Berlin",
                            "Europe/Bratislava",
                            "Europe/Brussels",
                            "Europe/Bucharest",
                            "Europe/Budapest",
                            "Europe/Busingen",
                            "Europe/Chisinau",
                            "Europe/Copenhagen",
                            "Europe/Dublin",
                            "Europe/Gibraltar",
                            "Europe/Guernsey",
                            "Europe/Helsinki",
                            "Europe/Isle_of_Man",
                            "Europe/Istanbul",
                            "Europe/Jersey",
                            "Europe/Kaliningrad",
                            "Europe/Kiev",
                            "Europe/Kirov",
                            "Europe/Lisbon",
                            "Europe/Ljubljana",
                            "Europe/London",
                            "Europe/Luxembourg",
                            "Europe/Madrid",
                            "Europe/Malta",
                            "Europe/Mariehamn",
                            "Europe/Minsk",
                            "Europe/Monaco",
                            "Europe/Moscow",
                            "Europe/Nicosia",
                            "Europe/Oslo",
                            "Europe/Paris",
                            "Europe/Podgorica",
                            "Europe/Prague",
                            "Europe/Riga",
                            "Europe/Rome",
                            "Europe/Samara",
                            "Europe/San_Marino",
                            "Europe/Sarajevo",
                            "Europe/Saratov",
                            "Europe/Simferopol",
                            "Europe/Skopje",
                            "Europe/Sofia",
                            "Europe/Stockholm",
                            "Europe/Tallinn",
                            "Europe/Tirane",
                            "Europe/Tiraspol",
                            "Europe/Ulyanovsk",
                            "Europe/Uzhgorod",
                            "Europe/Vaduz",
                            "Europe/Vatican",
                            "Europe/Vienna",
                            "Europe/Vilnius",
                            "Europe/Volgograd",
                            "Europe/Warsaw",
                            "Europe/Zagreb",
                            "Europe/Zaporozhye",
                            "Europe/Zurich",
                            "GB",
                            "GB-Eire",
                            "GMT",
                            "GMT+0",
                            "GMT-0",
                            "GMT0",
                            "Greenwich",
                            "HST",
                            "Hongkong",
                            "Iceland",
                            "Indian/Antananarivo",
                            "Indian/Chagos",
                            "Indian/Christmas",
                            "Indian/Cocos",
                            "Indian/Comoro",
                            "Indian/Kerguelen",
                            "Indian/Mahe",
                            "Indian/Maldives",
                            "Indian/Mauritius",
                            "Indian/Mayotte",
                            "Indian/Reunion",
                            "Iran",
                            "Israel",
                            "Jamaica",
                            "Japan",
                            "Kwajalein",
                            "Libya",
                            "MET",
                            "MST",
                            "MST7MDT",
                            "Mexico/BajaNorte",
                            "Mexico/BajaSur",
                            "Mexico/General",
                            "NZ",
                            "NZ-CHAT",
                            "Navajo",
                            "PRC",
                            "PST8PDT",
                            "Pacific/Apia",
                            "Pacific/Auckland",
                            "Pacific/Bougainville",
                            "Pacific/Chatham",
                            "Pacific/Chuuk",
                            "Pacific/Easter",
                            "Pacific/Efate",
                            "Pacific/Enderbury",
                            "Pacific/Fakaofo",
                            "Pacific/Fiji",
                            "Pacific/Funafuti",
                            "Pacific/Galapagos",
                            "Pacific/Gambier",
                            "Pacific/Guadalcanal",
                            "Pacific/Guam",
                            "Pacific/Honolulu",
                            "Pacific/Johnston",
                            "Pacific/Kanton",
                            "Pacific/Kiritimati",
                            "Pacific/Kosrae",
                            "Pacific/Kwajalein",
                            "Pacific/Majuro",
                            "Pacific/Marquesas",
                            "Pacific/Midway",
                            "Pacific/Nauru",
                            "Pacific/Niue",
                            "Pacific/Norfolk",
                            "Pacific/Noumea",
                            "Pacific/Pago_Pago",
                            "Pacific/Palau",
                            "Pacific/Pitcairn",
                            "Pacific/Pohnpei",
                            "Pacific/Ponape",
                            "Pacific/Port_Moresby",
                            "Pacific/Rarotonga",
                            "Pacific/Saipan",
                            "Pacific/Samoa",
                            "Pacific/Tahiti",
                            "Pacific/Tarawa",
                            "Pacific/Tongatapu",
                            "Pacific/Truk",
                            "Pacific/Wake",
                            "Pacific/Wallis",
                            "Pacific/Yap",
                            "Poland",
                            "Portugal",
                            "ROC",
                            "ROK",
                            "Singapore",
                            "Turkey",
                            "UCT",
                            "US/Alaska",
                            "US/Aleutian",
                            "US/Arizona",
                            "US/Central",
                            "US/East-Indiana",
                            "US/Eastern",
                            "US/Hawaii",
                            "US/Indiana-Starke",
                            "US/Michigan",
                            "US/Mountain",
                            "US/Pacific",
                            "US/Samoa",
                            "UTC",
                            "Universal",
                            "W-SU",
                            "WET",
                            "Zulu"
                        ],
                        "type": "string"
                    },

Suggest a fix

PR is coming

Reproduce the collision using the supplied OpenAPI enum values, especially values such as "GMT+12" and "GMT-12", then trace the enum-name generation entry point. Done means distinct valid generated names are produced for distinct enum values and the regression is covered by a test.