{"id":20977,"date":"2019-02-20T11:44:06","date_gmt":"2019-02-20T06:14:06","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-datetimeformatter-fails-to-parse-a-date-in-jdk-17-where-as-passes-in-jdk8-closed\/"},"modified":"2019-02-20T11:44:06","modified_gmt":"2019-02-20T06:14:06","slug":"solved-datetimeformatter-fails-to-parse-a-date-in-jdk-17-where-as-passes-in-jdk8-closed","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-datetimeformatter-fails-to-parse-a-date-in-jdk-17-where-as-passes-in-jdk8-closed\/","title":{"rendered":"[Solved] DateTimeFormatter fails to parse a date in JDK 17 where as passes in JDK8 [closed]"},"content":{"rendered":"

[ad_1]
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tl;dr<\/h1>\n
OffsetDateTime\n.parse( \n    \"Wed, 20 Feb 2019 07:14:06 +0100\" , \n    DateTimeFormatter.RFC_1123_DATE_TIME \n)\n.toString()\n<\/code><\/pre>\n
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2019-02-20T07:14:06+01:00<\/p>\n<\/blockquote>\n
Details<\/h1>\n
Your problem has nothing to do with Java 8 versus Java 17.<\/p>\n
Tip: Before blaming software that is formally specified, is thoroughly tested by enormous test suites, and is used by millions of programmers daily, suspect your own code first.<\/p>\n
Locale<\/code><\/h1>\n
Specify a Locale<\/code><\/a>. The locale determines the human language and cultural norms used in translating month names, etc.<\/p>\n
If you do not specify a Locale, the JVM\u2019s current default is applied implicitly<\/strong>. I would bet that when you ran your app at different times or on different machines, the JVM\u2019s current default Locale<\/code> varied.<\/p>\n
Locale locale = Locale.US ;\nDateTimeFormatter formatter = \n    DateTimeFormatter\n    .ofPattern( \"EEE, d MMM yyyy HH:mm:ss Z\" )\n    .withLocale( locale );\n    \nString input = \"Wed, 20 Feb 2019 07:14:06 +0100\" ;\nZonedDateTime zdt = ZonedDateTime.parse( input , formatter ) ;\nString output = zdt.toString() ;\nSystem.out.println( output );\n<\/code><\/pre>\n
See this code run at Ideone.com.<\/a><\/p>\n
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2019-02-20T07:14:06+01:00<\/p>\n<\/blockquote>\n
RFC 1123<\/h1>\n
As commented by Ole V.V., your format happens to comply with the legacy<\/a> standards RFC 1123<\/a>, RFC 822<\/a>, and RFC 2822<\/a>.<\/p>\n
The DateTimeFormatter<\/code> class carries a pre-defined formatter object for that format. See the constant DateTimeFormatter.RFC_1123_DATE_TIME<\/code><\/a>.<\/p>\n
That pre-defined formatter already has the appropriate English-based locale required by the RFCs\u2019 specifications. So no need to specify a Locale<\/code><\/strong> object here.<\/p>\n
String input = \"Wed, 20 Feb 2019 07:14:06 +0100\" ;\nDateTimeFormatter f = DateTimeFormatter.RFC_1123_DATE_TIME ;\nOffsetDateTime odt = OffsetDateTime.parse( input , f ) ;\n<\/code><\/pre>\n
See this code run at Ideone.com<\/a>.<\/p>\n
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2019-02-20T07:14:06+01:00<\/p>\n<\/blockquote>\n
ISO 8601<\/h1>\n
Modern protocols use ISO 8601<\/a> rather than this outdated format. The java.time<\/em> classes use ISO 8601 formats by default when parsing text or formatting a date-time instance.<\/p>\n
I suggest you educate the publisher of your data about the virtues in using only ISO 8601<\/a> standard formats for communicating date-time values textually.<\/p>\n<\/p><\/div>\n
<\/div>\n<\/div>\n
            2<\/span> <\/p><\/div>\n<\/div>\n
[ad_2]<\/p>\n
solved DateTimeFormatter fails to parse a date in JDK 17 where as passes in JDK8 [closed] <\/p>\n","protected":false},"excerpt":{"rendered":"
[ad_1] tl;dr OffsetDateTime .parse( “Wed, 20 Feb 2019 07:14:06 +0100” , DateTimeFormatter.RFC_1123_DATE_TIME ) .toString() 2019-02-20T07:14:06+01:00 Details Your problem has nothing to do with Java 8 versus Java 17. Tip: Before blaming software that is formally specified, is thoroughly tested by enormous test suites, and is used by millions of programmers daily, suspect your own code … Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[320],"tags":[783,2869,323,4760,549],"class_list":["post-20977","post","type-post","status-publish","format-standard","hentry","category-solved","tag-datetime","tag-datetime-format","tag-java","tag-java-17","tag-java-8"],"yoast_head":"\n[Solved] DateTimeFormatter fails to parse a date in JDK 17 where as passes in JDK8 [closed] - JassWeb<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/jassweb.com\/solved\/solved-datetimeformatter-fails-to-parse-a-date-in-jdk-17-where-as-passes-in-jdk8-closed\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] DateTimeFormatter fails to parse a date in JDK 17 where as passes in JDK8 [closed] - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] tl;dr OffsetDateTime .parse( "Wed, 20 Feb 2019 07:14:06 +0100" , DateTimeFormatter.RFC_1123_DATE_TIME ) .toString() 2019-02-20T07:14:06+01:00 Details Your problem has nothing to do with Java 8 versus Java 17. Tip: Before blaming software that is formally specified, is thoroughly tested by enormous test suites, and is used by millions of programmers daily, suspect your own code ... 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