{"id":105142,"date":"2022-09-20T21:36:59","date_gmt":"2022-09-20T19:36:59","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-java-se-19"},"modified":"2022-09-20T21:36:59","modified_gmt":"2022-09-20T19:36:59","slug":"vypusk-java-se-19","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hr\/blog\/news\/vypusk-java-se-19","title":{"rendered":"Izdanje Java SE 19","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Nakon \u0161est mjeseci razvoja, tvrtka Oracle je objavila platformu Java SE 19 (Java Platform, Standard Edition 19), \u010dija se referentna implementacija temelji na otvorenom projektu OpenJDK. Osim uklanjanja nekih zastarjelih mogu\u0107nosti, Java SE 19 zadr\u017eava unatragnju kompatibilnost s prethodnim verzijama Java platforme \u2014 ve\u0107ina prethodno napisanih Java projekata bez promjena \u0107e raditi na novoj verziji. Instalacijski paketi Java SE 19 (JDK, JRE i Server JRE) pripremljeni su za Linux (x86_64, AArch64), Windows (x86_64) i macOS (x86_64, AArch64). Referentna implementacija Java 19, razvijena u okviru projekta OpenJDK, potpuno je otvorena pod GPLv2 licencom s iznimkama GNU ClassPath, koje omogu\u0107uju dinami\u010dko povezivanje s komercijalnim proizvodima.     <\/p>\n<p>Java SE 19 pripada kategoriji izdanja sa uobi\u010dajenim vremenom podr\u0161ke, a a\u017euriranja \u0107e se izdavati do sljede\u0107eg izdanja. Za dugotrajnu podr\u0161ku (LTS) preporu\u010duje se koristiti Java SE 17, \u010dija \u0107e a\u017euriranja izlaziti do 2029. godine. Podsjetimo, od izdanja Java 10 projekt je pre\u0161ao na novi proces razvoja, koji uklju\u010duje kra\u0107i ciklus formiranja novih izdanja. Nova funkcionalnost se sada razvija u jednoj neprekidno a\u017euriranoj master grani, u koju se uklju\u010duju gotove promjene, a svake \u0161est mjeseci se odvaja grana za stabilizaciju novih izdanja.     <\/p>\n<p>Me\u0111u novitetima Java 19 isti\u010du se:  <\/p>\n<ul>\n<li class=\"l\"> Predlo\u017eena je preliminarna podr\u0161ka za obrasce zapisa (record pattern), koja pro\u0161iruje mogu\u0107nost uo\u010davanja koja je uvedena u Java 16, koriste\u0107i alate za razdjeljivanje vrijednosti klasa tipa record. Na primjer:       record Point(int x, int y) {}       void printSum(Object o) {         if (o instanceof Point(int x, int y)) {             System.out.println(x+y);         }     }\n<li class=\"l\"> U verzijama za Linux osigurana je podr\u0161ka za arhitekturu RISC-V.\n<li class=\"l\"> Dodana je preliminarna podr\u0161ka za API FFM (Foreign Function &amp; Memory), koji omogu\u0107uje interakciju Java programa s vanjskim kodom i podacima putem pozivanja funkcija iz vanjskih biblioteka i pristupa memoriji izvan JVM-a.\n<li class=\"l\"> Dodana je podr\u0161ka za virtualne tokove, koji predstavljaju lagane tokove, znatno olak\u0161avaju\u0107i pisanje i odr\u017eavanje visokoperformantnih vi\u0161ekorisni\u010dkih aplikacija.\n<li class=\"l\"> Predlo\u017eena je \u010detvrta preliminarna implementacija API-ja Vector, koja pru\u017ea funkcije za vektorske prora\u010dune koji se izvode kori\u0161tenjem vektorskih instrukcija procesora x86_64 i AArch64, a omogu\u0107uje istodobnu primjenu operacija na vi\u0161e vrijednosti (SIMD). Za razliku od mogu\u0107nosti automatske vektorizacije skalarnih operacija koje se pru\u017eaju u JIT kompajleru HotSpot, novi API omogu\u0107uje izrijekom upravljanje vektorizacijom za paralelnu obradu podataka.\n<li class=\"l\"> Dodana je tre\u0107a eksperimentalna implementacija uskla\u0111ivanja s obrascem u 'switch' izrazima, koja omogu\u0107uje kori\u0161tenje fleksibilnih uzoraka u oznakama 'case' umjesto to\u010dnih vrijednosti, obuhva\u0107aju\u0107i niz vrijednosti koje bi ina\u010de zahtijevale kori\u0161tenje dugotrajnih lanaca izraza 'if...else'.          Object o = 123L;     String formatted = switch (o) {         case Integer i -&gt; String.format('int %d', i);         case Long l    -&gt; String.format('long %d', l);         case Double d  -&gt; String.format('double %f', d);         case String s  -&gt; String.format('String %s', s);         default        -&gt; o.toString();     };\n<li class=\"l\"> Dodana je eksperimentalna API za strukturirani paralelizam, olak\u0161avaju\u0107i razvoj vi\u0161edretvenih aplikacija obradom vi\u0161e zadataka koji se izvr\u0161avaju u razli\u010ditim nitima kao jedinstvene jedinice.          <\/ul>\n<p>Izvor: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=57808\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u043e\u0441\u043b\u0435 \u0448\u0435\u0441\u0442\u0438 \u043c\u0435\u0441\u044f\u0446\u0435\u0432 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Oracle \u0432\u044b\u043f\u0443\u0441\u0442\u0438\u043b\u0430 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u0443 Java SE 19 (Java Platform, Standard Edition 19), \u0432 \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0435 \u044d\u0442\u0430\u043b\u043e\u043d\u043d\u043e\u0439 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u043a\u043e\u0442\u043e\u0440\u043e\u0439 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442\u0441\u044f \u043e\u0442\u043a\u0440\u044b\u0442\u044b\u0439 \u043f\u0440\u043e\u0435\u043a\u0442 OpenJDK. \u0417\u0430 \u0438\u0441\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435\u043c \u0443\u0434\u0430\u043b\u0435\u043d\u0438\u044f \u043d\u0435\u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u0443\u0441\u0442\u0430\u0440\u0435\u0432\u0448\u0438\u0445 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u0435\u0439 \u0432 Java SE 19 \u0441\u043e\u0445\u0440\u0430\u043d\u0435\u043d\u0430 \u043e\u0431\u0440\u0430\u0442\u043d\u0430\u044f \u0441\u043e\u0432\u043c\u0435\u0441\u0442\u0438\u043c\u043e\u0441\u0442\u044c \u0441 \u043f\u0440\u043e\u0448\u043b\u044b\u043c\u0438 \u0432\u044b\u043f\u0443\u0441\u043a\u0430\u043c\u0438 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b Java &#8212; \u0431\u043e\u043b\u044c\u0448\u0438\u043d\u0441\u0442\u0432\u043e \u0440\u0430\u043d\u0435\u0435 \u043d\u0430\u043f\u0438\u0441\u0430\u043d\u043d\u044b\u0445 Java-\u043f\u0440\u043e\u0435\u043a\u0442\u043e\u0432 \u0431\u0435\u0437 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0439 \u0431\u0443\u0434\u0443\u0442 \u0440\u0430\u0431\u043e\u0442\u043e\u0441\u043f\u043e\u0441\u043e\u0431\u043d\u044b \u043f\u0440\u0438 \u0437\u0430\u043f\u0443\u0441\u043a\u0435 \u043f\u043e\u0434 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-105142","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.4 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041f\u043e\u0441\u043b\u0435 \u0448\u0435\u0441\u0442\u0438 \u043c\u0435\u0441\u044f\u0446\u0435\u0432 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Oracle \u0432\u044b\u043f\u0443\u0441\u0442\u0438\u043b\u0430 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u0443 Java SE 19 (Java Platform, Standard Edition 19), \u0432 \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0435 \u044d\u0442\u0430\u043b\u043e\u043d\u043d\u043e\u0439 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