{"id":212,"date":"2007-04-21T04:36:16","date_gmt":"2007-04-21T03:36:16","guid":{"rendered":"http:\/\/www.malcolmhardie.com\/weblogs\/angus\/2007\/04\/21\/java-class-file-version-numbering\/"},"modified":"2025-02-01T03:04:16","modified_gmt":"2025-02-01T03:04:16","slug":"java-class-file-version-numbering","status":"publish","type":"post","link":"https:\/\/www.malcolmhardie.com\/weblogs\/angus\/2007\/04\/21\/java-class-file-version-numbering\/","title":{"rendered":"Java class file version numbering"},"content":{"rendered":"<p><a href=\"http:\/\/alumnus.caltech.edu\/~leif\/opensource\/bcver\/BcVerApp.html\">http:\/\/alumnus.caltech.edu\/~leif\/opensource\/bcver\/BcVerApp.html<\/a><\/p>\n<p>This page has a list which shows how java class version numbers relate to java platform version numbering. It&#8217;s useful if you get one of those <a href=\"http:\/\/java.sun.com\/j2se\/1.4.2\/docs\/api\/java\/lang\/UnsupportedClassVersionError.html\">UnsupportedClassVersionError<\/a> errors.<\/p>\n<p>This relates to the Java <a href=\"http:\/\/java.sun.com\/docs\/books\/jvms\/second_edition\/html\/ClassFile.doc.html#75883\">ClassFile structure<\/a> which defines how classes are represented.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>http:\/\/alumnus.caltech.edu\/~leif\/opensource\/bcver\/BcVerApp.html This page has a list which shows how java class version numbers relate to java platform version numbering. It&#8217;s useful if you get one of those UnsupportedClassVersionError errors. This relates to the Java ClassFile structure which defines how classes are represented.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[14],"tags":[40],"class_list":["post-212","post","type-post","status-publish","format-standard","hentry","category-writing-software","tag-java"],"_links":{"self":[{"href":"https:\/\/www.malcolmhardie.com\/weblogs\/angus\/wp-json\/wp\/v2\/posts\/212","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.malcolmhardie.com\/weblogs\/angus\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.malcolmhardie.com\/weblogs\/angus\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.malcolmhardie.com\/weblogs\/angus\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.malcolmhardie.com\/weblogs\/angus\/wp-json\/wp\/v2\/comments?post=212"}],"version-history":[{"count":1,"href":"https:\/\/www.malcolmhardie.com\/weblogs\/angus\/wp-json\/wp\/v2\/posts\/212\/revisions"}],"predecessor-version":[{"id":1481,"href":"https:\/\/www.malcolmhardie.com\/weblogs\/angus\/wp-json\/wp\/v2\/posts\/212\/revisions\/1481"}],"wp:attachment":[{"href":"https:\/\/www.malcolmhardie.com\/weblogs\/angus\/wp-json\/wp\/v2\/media?parent=212"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.malcolmhardie.com\/weblogs\/angus\/wp-json\/wp\/v2\/categories?post=212"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.malcolmhardie.com\/weblogs\/angus\/wp-json\/wp\/v2\/tags?post=212"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}