{"id":101268,"date":"2021-09-15T10:22:53","date_gmt":"2021-09-15T08:22:53","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-java-se-17"},"modified":"2021-09-15T10:22:53","modified_gmt":"2021-09-15T08:22:53","slug":"vypusk-java-se-17","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/news\/vypusk-java-se-17","title":{"rendered":"Rilascio di Java SE 17","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"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 17 (Java Platform, Standard Edition 17), \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 17 \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 \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u0435\u043c \u043d\u043e\u0432\u043e\u0439 \u0432\u0435\u0440\u0441\u0438\u0438.  \u0413\u043e\u0442\u043e\u0432\u044b\u0435 \u0434\u043b\u044f \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u043a\u0438 \u0441\u0431\u043e\u0440\u043a\u0438 Java SE 17 (JDK, JRE \u0438 Server JRE) \u043f\u043e\u0434\u0433\u043e\u0442\u043e\u0432\u043b\u0435\u043d\u044b \u0434\u043b\u044f Linux (x86_64, AArch64), Windows (x86_64) \u0438 macOS (x86_64, AArch64). \u0420\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0430\u043d\u043d\u0430\u044f \u0432 \u0440\u0430\u043c\u043a\u0430\u0445 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 OpenJDK \u044d\u0442\u0430\u043b\u043e\u043d\u043d\u0430\u044f \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044f Java 17 \u043f\u043e\u043b\u043d\u043e\u0441\u0442\u044c\u044e \u043e\u0442\u043a\u0440\u044b\u0442\u0430 \u043f\u043e\u0434 \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u0435\u0439 GPLv2 \u0441 \u0438\u0441\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u044f\u043c\u0438 GNU ClassPath, \u0440\u0430\u0437\u0440\u0435\u0448\u0430\u044e\u0449\u0438\u043c\u0438 \u0434\u0438\u043d\u0430\u043c\u0438\u0447\u0435\u0441\u043a\u043e\u0435 \u0441\u0432\u044f\u0437\u044b\u0432\u0430\u043d\u0438\u0435 \u0441 \u043a\u043e\u043c\u043c\u0435\u0440\u0447\u0435\u0441\u043a\u0438\u043c\u0438 \u043f\u0440\u043e\u0434\u0443\u043a\u0442\u0430\u043c\u0438.     <\/p>\n<p>Java SE 17 \u00e8 classificato come rilascio con supporto a lungo termine (LTS), gli aggiornamenti per il quale saranno rilasciati fino al 2029. Il rilascio di aggiornamenti per il precedente rilascio intermedio Java 16 \u00e8 stato interrotto. La precedente LTS, Java 11, sar\u00e0 supportata fino al 2026. Il prossimo rilascio LTS \u00e8 previsto per settembre 2024. Ricordiamo che a partire dal rilascio di Java 10, il progetto \u00e8 passato a un nuovo processo di sviluppo, che prevede un ciclo di vita per la creazione di nuove release pi\u00f9 breve. La nuova funzionalit\u00e0 viene ora sviluppata in un ramo master costantemente aggiornato, in cui vengono incluse le modifiche gi\u00e0 pronte e da cui ogni sei mesi si diramano rami per la stabilizzazione dei nuovi rilasci.     <\/p>\n<p>Tra le novit\u00e0 di Java 17, si possono notare:  <\/p>\n<ul>\n<li class=\"l\"> \u041f\u0440\u0435\u0434\u043b\u043e\u0436\u0435\u043d\u0430 \u044d\u043a\u0441\u043f\u0435\u0440\u0438\u043c\u0435\u043d\u0442\u0430\u043b\u044c\u043d\u0430\u044f \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044f \u0441\u043e\u043f\u043e\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u043f\u043e \u0448\u0430\u0431\u043b\u043e\u043d\u0443 \u0432  \u0432\u044b\u0440\u0430\u0436\u0435\u043d\u0438\u044f\u0445 &#171;switch&#187;, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u0432 \u043c\u0435\u0442\u043a\u0430\u0445 &#171;case&#187; \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c \u043d\u0435 \u0442\u043e\u0447\u043d\u044b\u0435 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u044f, \u0430 \u0433\u0438\u0431\u043a\u0438\u0435 \u0448\u0430\u0431\u043b\u043e\u043d\u044b, \u043e\u0445\u0432\u0430\u0442\u044b\u0432\u0430\u044e\u0449\u0438\u0435 \u0441\u0440\u0430\u0437\u0443 \u0441\u0435\u0440\u0438\u044e \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0439, \u0434\u043b\u044f \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u0440\u0430\u043d\u0435\u0435 \u043f\u0440\u0438\u0445\u043e\u0434\u0438\u043b\u043e\u0441\u044c \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c \u0433\u0440\u043e\u043c\u043e\u0437\u0434\u043a\u0438\u0435 \u0446\u0435\u043f\u043e\u0447\u043a\u0438 \u0432\u044b\u0440\u0430\u0436\u0435\u043d\u0438\u0439 &#171;if&#8230;else&#187;. \u041a\u0440\u043e\u043c\u0435 \u0442\u043e\u0433\u043e \u0432\u043d\u0443\u0442\u0440\u0438 &#171;switch&#187; \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0430 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u0438 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0439 NULL.         Object o = 123L;     String formatted = switch (o) {         case Integer i -> String.format(&#171;int %d&#187;, i);         case Long l    -> String.format(&#171;long %d&#187;, l);         case Double d  -> String.format(&#171;double %f&#187;, d);         case String s  -> String.format(&#171;String %s&#187;, s);         default        -> o.toString();     };\n<li class=\"l\"> \u0421\u0442\u0430\u0431\u0438\u043b\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u043d\u0430 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0430 \u0437\u0430\u043f\u0435\u0447\u0430\u0442\u0430\u043d\u043d\u044b\u0445 (&#171;sealed&#187;) \u043a\u043b\u0430\u0441\u0441\u043e\u0432 \u0438 \u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441\u043e\u0432, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u043d\u0435 \u043c\u043e\u0433\u0443\u0442 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c\u0441\u044f \u0434\u0440\u0443\u0433\u0438\u043c\u0438 \u043a\u043b\u0430\u0441\u0441\u0430\u043c\u0438 \u0438 \u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441\u0430\u043c\u0438 \u0434\u043b\u044f \u043d\u0430\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u043d\u0438\u044f, \u0440\u0430\u0441\u0448\u0438\u0440\u0435\u043d\u0438\u044f \u0438\u043b\u0438 \u043f\u0435\u0440\u0435\u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u0438\u044f \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438. \u0417\u0430\u043f\u0435\u0447\u0430\u0442\u0430\u043d\u043d\u044b\u0435 \u043a\u043b\u0430\u0441\u0441\u044b \u0442\u0430\u043a\u0436\u0435 \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u044e\u0442 \u0431\u043e\u043b\u0435\u0435 \u0434\u0435\u043a\u043b\u0430\u0440\u0430\u0442\u0438\u0432\u043d\u044b\u0439 \u0441\u043f\u043e\u0441\u043e\u0431 \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d\u0438\u044f \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u044f \u0441\u0443\u043f\u0435\u0440\u043a\u043b\u0430\u0441\u0441\u0430, \u0447\u0435\u043c \u043c\u043e\u0434\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440\u044b \u0434\u043e\u0441\u0442\u0443\u043f\u0430, \u043e\u0441\u043d\u043e\u0432\u0430\u043d\u043d\u044b\u0439 \u043d\u0430 \u044f\u0432\u043d\u043e\u043c \u043f\u0435\u0440\u0435\u0447\u0438\u0441\u043b\u0435\u043d\u0438\u0438 \u043f\u043e\u0434\u043a\u043b\u0430\u0441\u0441\u043e\u0432, \u0440\u0430\u0437\u0440\u0435\u0448\u0451\u043d\u043d\u044b\u0445 \u0434\u043b\u044f \u0440\u0430\u0441\u0448\u0438\u0440\u0435\u043d\u0438\u044f.       package com.example.geometry;       public sealed class Shape          permits com.example.polar.Circle,                  com.example.quad.Rectangle,                  com.example.quad.simple.Square {&#8230;}\n<li class=\"l\"> \u00c8 stata proposta una seconda implementazione preliminare dell'API Vector, che fornisce funzionalit\u00e0 per i calcoli vettoriali effettuati utilizzando istruzioni vettoriali nei processori x86_64 e AArch64 e consente di applicare contemporaneamente operazioni a pi\u00f9 valori (SIMD). A differenza delle funzionalit\u00e0 di autovettorizzazione delle operazioni scalari fornite dal compilatore JIT HotSpot, la nuova API offre la possibilit\u00e0 di gestire esplicitamente la vettorizzazione per l'elaborazione parallela dei dati.\n<li class=\"l\"> \u0414\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u0430 \u043f\u0440\u0435\u0434\u0432\u0430\u0440\u0438\u0442\u0435\u043b\u044c\u043d\u0430\u044f \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044f API Foreign Function &#038; Memory, \u043f\u0440\u0438 \u043f\u043e\u043c\u043e\u0449\u0438 \u043a\u043e\u0442\u043e\u0440\u043e\u0433\u043e \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u044f \u043c\u043e\u0433\u0443\u0442 \u0432\u0437\u0430\u0438\u043c\u043e\u0434\u0435\u0439\u0441\u0442\u0432\u043e\u0432\u0430\u0442\u044c \u0441 \u043a\u043e\u0434\u043e\u043c \u0438 \u0434\u0430\u043d\u043d\u044b\u043c\u0438, \u043d\u0430\u0445\u043e\u0434\u044f\u0449\u0438\u043c\u0438\u0441\u044f  \u0437\u0430 \u043f\u0440\u0435\u0434\u0435\u043b\u0430\u043c\u0438 Java runtime. \u041d\u043e\u0432\u044b\u0439 API \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u044d\u0444\u0444\u0435\u043a\u0442\u0438\u0432\u043d\u043e \u0432\u044b\u0437\u044b\u0432\u0430\u0442\u044c \u0444\u0443\u043d\u043a\u0446\u0438\u0438, \u0432\u044b\u043f\u043e\u043b\u043d\u044f\u0435\u043c\u044b\u0435 \u043d\u0435 \u0432 JVM, \u0438 \u043e\u0431\u0440\u0430\u0449\u0430\u0442\u044c\u0441\u044f \u043a \u043f\u0430\u043c\u044f\u0442\u0438, \u043d\u0435 \u0443\u043f\u0440\u0430\u0432\u043b\u044f\u0435\u043c\u043e\u0439 JVM. \u041d\u0430\u043f\u0440\u0438\u043c\u0435\u0440, \u043c\u043e\u0436\u043d\u043e \u0432\u044b\u0437\u044b\u0432\u0430\u0442\u044c \u0444\u0443\u043d\u043a\u0446\u0438\u0438 \u0438\u0437 \u0432\u043d\u0435\u0448\u043d\u0438\u0445 \u0440\u0430\u0437\u0434\u0435\u043b\u044f\u0435\u043c\u044b\u0445 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a \u0438 \u043e\u0431\u0440\u0430\u0449\u0430\u0442\u044c\u0441\u044f \u043a \u0434\u0430\u043d\u043d\u044b\u043c \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u0430 \u0431\u0435\u0437 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u044f JNI.\n<li class=\"l\"> \u0414\u0432\u0438\u0436\u043e\u043a \u043e\u0442\u0440\u0438\u0441\u043e\u0432\u043a\u0438  \u0434\u043b\u044f macOS, \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0438\u0432\u0430\u044e\u0449\u0438\u0439 \u0440\u0430\u0431\u043e\u0442\u0443 API Java 2D, \u043a\u043e\u0442\u043e\u0440\u044b\u0439, \u0432 \u0441\u0432\u043e\u044e \u043e\u0447\u0435\u0440\u0435\u0434\u044c, \u0437\u0430\u0434\u0435\u0439\u0441\u0442\u0432\u043e\u0432\u0430\u043d \u0432 API Swing, \u0430\u0434\u0430\u043f\u0442\u0438\u0440\u043e\u0432\u0430\u043d \u0434\u043b\u044f \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u044f \u0433\u0440\u0430\u0444\u0438\u0447\u0435\u0441\u043a\u043e\u0433\u043e API Metal. \u041f\u043e \u0443\u043c\u043e\u043b\u0447\u0430\u043d\u0438\u044e \u043d\u0430 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u0435 macOS \u043f\u043e-\u043f\u0440\u0435\u0436\u043d\u0435\u043c\u0443 \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u0435\u0442\u0441\u044f  OpenGL, \u0430 \u0434\u043b\u044f \u0432\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u044f \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0438  Metal \u0442\u0440\u0435\u0431\u0443\u0435\u0442\u0441\u044f \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u043a\u0430 \u043f\u0430\u0440\u0430\u043c\u0435\u0442\u0440\u0430 &#171;-Dsun.java2d.metal=true&#187; \u0438 \u043d\u0430\u043b\u0438\u0447\u0438\u0435 \u043a\u0430\u043a \u043c\u0438\u043d\u0438\u043c\u0443\u043c \u0432\u044b\u043f\u0443\u0441\u043a\u0430 macOS 10.14.x.\n<li class=\"l\"> \u00c8 stato aggiunto un porting per la piattaforma macOS\/AArch64 (computer Apple basati sui nuovi chip Apple M1). Una caratteristica del porting \u00e8 il supporto per il meccanismo di protezione della memoria W^X (Write XOR Execute), secondo cui le pagine di memoria non possono essere accessibili contemporaneamente in scrittura ed esecuzione. (il codice pu\u00f2 essere eseguito solo dopo aver disabilitato la scrittura, e la scrittura in una pagina di memoria \u00e8 possibile solo dopo aver disabilitato l'esecuzione).\n<li class=\"l\"> \u0412\u043e\u0437\u0432\u0440\u0430\u0449\u0435\u043d\u043e \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u0442\u043e\u043b\u044c\u043a\u043e \u0441\u0442\u0440\u043e\u0433\u043e\u0439 (strictfp) \u0441\u0435\u043c\u0430\u043d\u0442\u0438\u043a\u0438 \u0434\u043b\u044f \u0432\u044b\u0440\u0430\u0436\u0435\u043d\u0438\u0439 \u0441 \u043f\u043b\u0430\u0432\u0430\u044e\u0449\u0435\u0439 \u0437\u0430\u043f\u044f\u0442\u043e\u0439. \u041f\u0440\u0435\u043a\u0440\u0430\u0449\u0435\u043d\u0430 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0430 \u0434\u043e\u0441\u0442\u0443\u043f\u043d\u043e\u0439  \u043d\u0430\u0447\u0438\u043d\u0430\u044f \u0441 \u0432\u044b\u043f\u0443\u0441\u043a\u0430  Java 1.2 \u0441\u0435\u043c\u0430\u043d\u0442\u0438\u043a\u0438 &#171;default&#187;, \u0432\u043a\u043b\u044e\u0447\u0430\u044e\u0449\u0435\u0439 \u0443\u043f\u0440\u043e\u0449\u0435\u043d\u0438\u044f \u0434\u043b\u044f \u0440\u0430\u0431\u043e\u0442\u044b \u043d\u0430 \u0441\u0438\u0441\u0442\u0435\u043c\u0430\u0445 \u0441 \u043e\u0447\u0435\u043d\u044c \u0441\u0442\u0430\u0440\u044b\u043c\u0438 \u043c\u0430\u0442\u0435\u043c\u0430\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u043c\u0438 \u0441\u043e\u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u0430\u043c\u0438 x87 (\u043f\u043e\u0441\u043b\u0435 \u043f\u043e\u044f\u0432\u043b\u0435\u043d\u0438\u044f \u0438\u043d\u0441\u0442\u0440\u0443\u043a\u0446\u0438\u0439 SSE2 \u043d\u0435\u043e\u0431\u0445\u043e\u0434\u0438\u043c\u043e\u0441\u0442\u044c \u0432 \u0434\u043e\u043f\u043e\u043b\u043d\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0439 \u0441\u0435\u043c\u0430\u043d\u0442\u0438\u043a\u0435 \u043f\u0440\u043e\u043f\u0430\u043b\u0430).\n<li class=\"l\"> Sono stati implementati nuovi tipi di interfacce per generatori di numeri pseudo-casuali, nonch\u00e9 algoritmi aggiuntivi per una generazione di numeri casuali di maggior qualit\u00e0. Le applicazioni hanno la possibilit\u00e0 di scegliere l'algoritmo di generazione dei numeri pseudo-casuali. \u00c8 stato migliorato il supporto per la generazione di flussi di oggetti casuali.\n<li class=\"l\"> \u0420\u0435\u0430\u043b\u0438\u0437\u043e\u0432\u0430\u043d\u0430 \u043e\u0431\u044f\u0437\u0430\u0442\u0435\u043b\u044c\u043d\u0430\u044f \u0441\u0442\u0440\u043e\u0433\u0430\u044f \u0438\u043d\u043a\u0430\u043f\u0441\u0443\u043b\u044f\u0446\u0438\u044f \u0432\u0441\u0435\u0445 \u0432\u043d\u0443\u0442\u0440\u0435\u043d\u043d\u0438\u0445 \u044d\u043b\u0435\u043c\u0435\u043d\u0442\u043e\u0432 JDK, \u0437\u0430 \u0438\u0441\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435\u043c \u043a\u0440\u0438\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0445 API, \u0442\u0430\u043a\u0438\u0445 \u043a\u0430\u043a sun.misc.Unsafe. \u0421\u0442\u0440\u043e\u0433\u0430\u044f \u0438\u043d\u043a\u0430\u043f\u0441\u0443\u043b\u044f\u0446\u0438\u044f \u0431\u043b\u043e\u043a\u0438\u0440\u0443\u0435\u0442 \u043f\u043e\u043f\u044b\u0442\u043a\u0438 \u043e\u0431\u0440\u0430\u0449\u0435\u043d\u0438\u044f \u0438\u0437 \u043a\u043e\u0434\u0430 \u043a \u0432\u043d\u0443\u0442\u0440\u0435\u043d\u043d\u0438\u043c \u043a\u043b\u0430\u0441\u0441\u0430\u043c, \u043c\u0435\u0442\u043e\u0434\u0430\u043c \u0438 \u043f\u043e\u043b\u044f\u043c. \u0420\u0430\u043d\u0435\u0435 \u0440\u0435\u0436\u0438\u043c \u0441\u0442\u0440\u043e\u0433\u043e\u0439 \u0438\u043d\u043a\u0430\u043f\u0441\u0443\u043b\u044f\u0446\u0438\u0438 \u043c\u043e\u0436\u043d\u043e \u0431\u044b\u043b\u043e \u043e\u0442\u043a\u043b\u044e\u0447\u0438\u0442\u044c \u043f\u0440\u0438 \u043f\u043e\u043c\u043e\u0449\u0438 \u043e\u043f\u0446\u0438\u0438  &#171;&#8212;illegal-access=permit&#187;, \u043d\u043e \u0442\u0435\u043f\u0435\u0440\u044c \u043e\u043d\u0430 \u043e\u0431\u044a\u044f\u0432\u043b\u0435\u043d\u0430 \u0443\u0441\u0442\u0430\u0440\u0435\u0432\u0448\u0435\u0439. \u0414\u043b\u044f \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0439, \u043a\u043e\u0442\u043e\u0440\u044b\u043c \u043d\u0435\u043e\u0431\u0445\u043e\u0434\u0438\u043c \u0434\u043e\u0441\u0442\u0443\u043f \u043a \u0432\u043d\u0443\u0442\u0440\u0435\u043d\u043d\u0438\u043c \u043a\u043b\u0430\u0441\u0441\u0430\u043c, \u043c\u0435\u0442\u043e\u0434\u0430\u043c \u0438 \u043f\u043e\u043b\u044f\u043c \u0441\u043b\u0435\u0434\u0443\u0435\u0442 \u044f\u0432\u043d\u043e \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0438\u0442\u044c \u0438\u0445 \u043f\u0440\u0438 \u043f\u043e\u043c\u043e\u0449\u0438 \u043e\u043f\u0446\u0438\u0438 &#171;&#8212;add-opens&#187; \u0438\u043b\u0438 \u0430\u0442\u0440\u0438\u0431\u0443\u0442\u0430 Add-Opens \u0432 \u0444\u0430\u0439\u043b\u0435 \u0441 \u043c\u0430\u043d\u0438\u0444\u0435\u0441\u0442\u043e\u043c.\n<li class=\"l\"> Le applicazioni possono definire filtri per la deserializzazione dei dati, che possono dipendere dal contesto e essere scelti dinamicamente in relazione a specifiche operazioni di deserializzazione. I filtri specificati si applicano a tutto <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/it\/vps\/abuzoustojchivye-vps\/\"   title=\"macchina virtuale\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"4313\">macchina virtuale<\/a>  (a livello di JVM), cio\u00e8 coprono non solo l'applicazione stessa, ma anche le librerie di terze parti utilizzate nell'applicazione.\n<li class=\"l\"> In Swing \u00e8 stato aggiunto il metodo javax.swing.filechooser.FileSystemView.getSystemIcon per il caricamento di icone di grandi dimensioni, il quale migliora la formattazione dell'interfaccia su schermi ad alta densit\u00e0 di pixel (HighDPI).\n<li class=\"l\"> L'API java.net.DatagramSocket ha implementato il supporto per collegamenti a gruppi Multicast senza la necessit\u00e0 di utilizzare un'API separata java.net.MulticastSocket.\n<li class=\"l\"> \u00c8 stato migliorato lo strumento IGV (Ideal Graph Visualizer), che fornisce una visualizzazione interattiva della rappresentazione intermedia del codice nel compilatore JIT HotSpot VM C2.\n<li class=\"l\"> Nella JavaDoc, analogamente al compilatore javac, quando viene riportato un errore ora viene specificato il numero della riga problematica nel file sorgente e la posizione dell'errore.\n<li class=\"l\"> Aggiunta la propriet\u00e0 native.encoding, che riflette il nome della codifica dei caratteri del sistema (UTF-8, koi8-r, cp1251, ecc.).\n<li class=\"l\"> Aggiunta l'interfaccia java.time.InstantSource, che consente di gestire il tempo senza legarsi a un fuso orario.\n<li class=\"l\"> Aggiunto l'API java.util.HexFormat per la conversione in rappresentazione esadecimale e viceversa.\n<li class=\"l\"> Nel compilatore \u00e8 stata aggiunta la modalit\u00e0 blackhole, che disabilita le operazioni di eccezione per il codice inutilizzato (eliminazione del codice morto), utile per i test delle prestazioni.\n<li class=\"l\"> \u0412 Runtime \u0434\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u0430 \u043e\u043f\u0446\u0438\u044f &#171;-Xlog:async&#187; \u0434\u043b\u044f \u0437\u0430\u043f\u0438\u0441\u0438 \u043b\u043e\u0433\u043e\u0432 \u0432 \u0430\u0441\u0438\u043d\u0445\u0440\u043e\u043d\u043d\u043e\u043c \u0440\u0435\u0436\u0438\u043c\u0435.\n<li class=\"l\"> Per le connessioni protette, TLS 1.3 \u00e8 ora attivato di default (precedentemente era TLS 1.2).\n<li class=\"l\">  L'API Applet (java.applet.Applet*, javax.swing.JApplet), utilizzata per eseguire applicazioni Java nei browser, \u00e8 stata riclassificata come deprecata (ha perso rilevanza dopo l'interruzione del supporto al plugin Java per i browser).\n<li class=\"l\"> Il Security Manager, da tempo obsoleto e ormai non pi\u00f9 richiesto dopo la cessazione del supporto per il plugin del browser, \u00e8 stato classificato come deprecato.\n<li class=\"l\"> Rimosso il meccanismo RMI Activation, obsoleto, che \u00e8 stato trasformato in opzione gi\u00e0 in Java 8 e applicato raramente nelle pratiche moderne.\n<li class=\"l\"> Rimosso dal SDK il compilatore sperimentale che supportava JIT (just-in-time) per la compilazione dinamica del codice Java per HotSpot JVM, cos\u00ec come la modalit\u00e0 di compilazione anticipata (AOT, ahead-of-time) delle classi in codice macchina prima dell'avvio della macchina virtuale. Il compilatore, scritto in Java e basato sui risultati del progetto Graal, richiede notevoli sforzi di manutenzione che non giustificano pi\u00f9 la sua esistenza vista la mancanza di richiesta da parte degli sviluppatori.    <\/ul>\n<p>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=55802\">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 17 (Java Platform, Standard Edition 17), \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 17 \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; 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