{"id":2327,"date":"2017-05-17T22:29:59","date_gmt":"2017-05-17T13:29:59","guid":{"rendered":"http:\/\/yucchi.jp\/blog\/?p=2327"},"modified":"2017-05-17T22:29:59","modified_gmt":"2017-05-17T13:29:59","slug":"java-se-9-%e3%81%ae%e4%ba%88%e7%bf%92-%e3%81%9d%e3%81%ae%ef%bc%93","status":"publish","type":"post","link":"http:\/\/yucchi.jp\/blog\/?p=2327","title":{"rendered":"Java SE 9 \u306e\u4e88\u7fd2 \u305d\u306e\uff13"},"content":{"rendered":"<p>Java SE 9 \u306e\u4e88\u7fd2 \u305d\u306e\uff13\u3067\u3059\u3002<\/p>\n<p>\u4eca\u56de\u306e\u30a8\u30f3\u30c8\u30ea\u30fc\u306f JShell \u3067\u3059\u3002<\/p>\n<p>JShell \u306f\u591a\u304f\u306e\u958b\u767a\u8005\u304b\u3089\u671f\u5f85\u3055\u308c\u3066\u304a\u308a\u30cd\u30c3\u30c8\u4e0a\u306b\u60c5\u5831\u304c\u3042\u3075\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u7279\u306b\u300c<a href=\"http:\/\/itpro.nikkeibp.co.jp\/atcl\/column\/15\/120700278\/020700031\/?ST=upper&amp;rt=nocnt\" target=\"_blank\">\u6700\u65b0Java\u60c5\u5831\u5c40<\/a>\u300d\u306e\u9023\u8f09\u8a18\u4e8b\u306f\u89e3\u308a\u3084\u3059\u304f\u304a\u52e7\u3081\u3067\u3059\u3002<\/p>\n<p>\u305d\u3053\u3067\u4eca\u56de\u306e\u30a8\u30f3\u30c8\u30ea\u30fc\u306f\u300c<font color=\"#ff0000\" size=\"3\"><strong>\u3053\u3093\u306a\u4f7f\u3044\u65b9\u306f\u3057\u306a\u3044\u3060\u308d\u3046<\/strong><\/font>\u300d\u3068\u3044\u3046\u5185\u5bb9\u306e\u3082\u306e\u3092\u66f8\u304d\u307e\u3059\u3002<\/p>\n<p>\u3064\u307e\u308a\u3001<font color=\"#9b00d3\" size=\"3\"><strong>\u305f\u3060\u306e\u304a\u904a\u3073\u3067\u3059<\/strong><\/font>\u3002<\/p>\n<p>\u3067\u3082\u30cd\u30c3\u30c8\u4e0a\u3067\u3053\u306e\u60c5\u5831\u3092\u898b\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u306e\u306f\u6b64\u51e6\u3060\u3051\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3088\u3002(^_^;<\/p>\n<p>\u305d\u308c\u3060\u3051\u5fc5\u8981\u304c\u306a\u3044<font color=\"#00ff00\" size=\"3\"><strong>\u7121\u99c4\u306a\u60c5\u5831<\/strong><\/font>\u3068\u8a00\u3048\u307e\u3059\u3002<\/p>\n<p>\u305d\u308c\u3067\u306f\u904e\u53bb\u306e\u30a8\u30f3\u30c8\u30ea\u30fc\u3092\u307e\u305a\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n<p><a href=\"http:\/\/yucchi.jp\/blog\/?p=2131\">\u3088\u304f\u898b\u304b\u3051\u308b\u30cd\u30bf IntegerCache \u554f\u984c<\/a><\/p>\n<p>Java \u3067\u306f\u3088\u304f\u77e5\u3089\u308c\u3066\u3044\u308b IntegerCache \u554f\u984c\u3067\u3059\u3002<\/p>\n<p>\u3053\u308c\u306f JVM \u30aa\u30d7\u30b7\u30e7\u30f3\u3092\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u306b\u3088\u308a\u5909\u66f4\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n<p>-XX:AutoBoxCacheMax=&lt;size&gt;<\/p>\n<p>\u3053\u308c\u3092 JShell \u3067\u8a2d\u5b9a\u3057\u3066\u3046\u3054\u304b\u3057\u3066\u307f\u305f\u3044\u3068\u601d\u3044\u307e\u305b\u3093\u304b\uff1f<\/p>\n<p>\u601d\u308f\u306a\u3044\u30fb\u30fb\u30fb\u3000\u305d\u3046\u3001\u666e\u901a\u306f\u601d\u3044\u307e\u305b\u3093\u3088\u306d\u3002<\/p>\n<p>\u3067\u3082\u3001\u79c1\u306f\u5929\u306e\u90aa\u9b3c\u306a\u4eba\u9593\u306a\u306e\u3067\u3069\u3046\u3059\u308c\u3070\u3044\u3044\u304b\u5fc5\u6b7b\u306b\u306a\u3063\u3066\u30b0\u30b0\u308a\u307e\u3057\u305f\u3002<\/p>\n<p>\u3067\u3082\u30d2\u30c3\u30c8\u305b\u305a twitter \u3067\u6ce3\u304d\u306a\u304c\u3089\u3064\u3076\u3084\u3044\u305f\u3089\u300c<font color=\"#ff0000\" size=\"4\"><strong>\uff7c\uff9e\uff6c\uff8a\uff9e\uff81\uff6e\uff6f\uff84\uff83\uff9e\uff77\uff99<\/strong><\/font>\u300d\u512a\u3057\u3044\u4eba\u9054\u306b\u6551\u308f\u308c\u307e\u3057\u305f\u3002<\/p>\n<p>JShell \u306f\u300c<a href=\"http:\/\/itpro.nikkeibp.co.jp\/atcl\/column\/15\/120700278\/031900034\/?ST=upper?itp_leaf_index\" target=\"_blank\">Java SE 9\u306eProject Kulla\u3001JShell\u306e\u52d5\u4f5c\u3068JShell API<\/a>\u300d\u306e\u8a18\u4e8b\u300cJShell\u306e\u52d5\u4f5c\u300d\u306b\u3042\u308b\u3088\u3046\u306b<\/p>\n<p>JShell process \u3068 Java process \u306e\u3075\u305f\u3064\u306e JVM \u304c\u7acb\u3061\u4e0a\u304c\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u3064\u307e\u308a\u3001JShell process \u304b\u3089\u30ea\u30e2\u30fc\u30c8 JVM \u306e Java process \u306b\u30b3\u30f3\u30d1\u30a4\u30eb\u3055\u308c\u305f\u30d0\u30a4\u30c8\u30b3\u30fc\u30c9\u3092\u6e21\u3057\u5b9f\u884c\u3057\u305f\u7d50\u679c\u3092\u8fd4\u3057\u3066\u3082\u3089\u3063\u3066\u3044\u308b\u3088\u3046\u3067\u3059\u3002<\/p>\n<p>\u3060\u304b\u3089\u30ea\u30e2\u30fc\u30c8 JVM \u306b JVM \u30aa\u30d7\u30b7\u30e7\u30f3\u3092\u8a2d\u5b9a\u3057\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>\u307e\u305a\u3001JShell \u3092\u8d77\u52d5\u3057\u307e\u3059\u3002<\/p>\n<p><a href=\"http:\/\/yucchi.jp\/blog\/wp-content\/uploads\/2017\/05\/a1.png\" target=\"_blank\"><img loading=\"lazy\" decoding=\"async\" title=\"a1\" style=\"border-left-width: 0px; border-right-width: 0px; background-image: none; border-bottom-width: 0px; padding-top: 0px; padding-left: 0px; display: inline; padding-right: 0px; border-top-width: 0px\" border=\"0\" alt=\"a1\" src=\"http:\/\/yucchi.jp\/blog\/wp-content\/uploads\/2017\/05\/a1_thumb.png\" width=\"756\" height=\"459\"><\/a><\/p>\n<p>\u6b21\u306b IntegerCache \u554f\u984c\u306e\u30b3\u30fc\u30c9\u3092\u5165\u529b\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<p><a href=\"http:\/\/yucchi.jp\/blog\/wp-content\/uploads\/2017\/05\/a2.png\" target=\"_blank\"><img loading=\"lazy\" decoding=\"async\" title=\"a2\" style=\"border-left-width: 0px; border-right-width: 0px; background-image: none; border-bottom-width: 0px; padding-top: 0px; padding-left: 0px; display: inline; padding-right: 0px; border-top-width: 0px\" border=\"0\" alt=\"a2\" src=\"http:\/\/yucchi.jp\/blog\/wp-content\/uploads\/2017\/05\/a2_thumb.png\" width=\"759\" height=\"464\"><\/a><\/p>\n<p>\u3061\u3083\u3093\u3068 false \u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u3053\u308c\u3092 true \u306b\u3059\u308b\u305f\u3081\u306b\u4e0b\u8a18\u306e JVM \u30aa\u30d7\u30b7\u30e7\u30f3\u3092 JShell \u8d77\u52d5\u30b3\u30de\u30f3\u30c9\u306b\u8ffd\u52a0\u3057\u307e\u3059\u3002<\/p>\n<p>-R-XX:AutoBoxCacheMax=128<\/p>\n<p><a href=\"http:\/\/yucchi.jp\/blog\/wp-content\/uploads\/2017\/05\/a3.png\" target=\"_blank\"><img loading=\"lazy\" decoding=\"async\" title=\"a3\" style=\"border-left-width: 0px; border-right-width: 0px; background-image: none; border-bottom-width: 0px; padding-top: 0px; padding-left: 0px; display: inline; padding-right: 0px; border-top-width: 0px\" border=\"0\" alt=\"a3\" src=\"http:\/\/yucchi.jp\/blog\/wp-content\/uploads\/2017\/05\/a3_thumb.png\" width=\"757\" height=\"459\"><\/a><\/p>\n<p>\u671f\u5f85\u901a\u308a\u306b true \u306b\u306a\u3063\u3066\u304f\u308c\u307e\u3057\u305f\u3002<\/p>\n<p>\u6b21\u306f\u30d7\u30ed\u30b0\u30e9\u30e0\u304b\u3089 JShell API \u3092\u4f7f\u3063\u3066\u307f\u3088\u3046\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n<p>\u4eca\u56de\u306e\u3088\u3046\u306b\u30ea\u30e2\u30fc\u30c8 JVM \u30aa\u30d7\u30b7\u30e7\u30f3\u3092\u8a2d\u5b9a\u3057\u305f\u308a\u3001\u30b3\u30f3\u30d1\u30a4\u30eb\u30aa\u30d7\u30b7\u30e7\u30f3\u3092\u8a2d\u5b9a\u3057\u3066\u307f\u307e\u3057\u305f\u3002<\/p>\n<p>\u307e\u305f\u30d7\u30ed\u30b0\u30e9\u30e0\u304b\u3089 JShell API \u3092\u4f7f\u3046\u3068\u304d\u306b\u601d\u3044\u8fbc\u307f\u304b\u3089\u300c\u3042\u308c\u308c\uff1f\u300d\u3068\u306a\u3063\u305f\u3053\u3068\u3082\u3002<\/p>\n<p>\u3061\u3087\u3063\u3068\u4eca\u65e5\u306f\u9045\u304f\u306a\u3063\u3066\u3057\u307e\u3063\u305f\u306e\u3067\u6b21\u56de\u306b\u305d\u308c\u3089\u306f\u66f8\u304f\u4e88\u5b9a\u3067\u3059\u3002<\/p>\n<p>\u305d\u308c\u3067\u306f G&#8217;Night! Zzz&#8230;<\/p>\n<p><a href=\"http:\/\/yucchi.jp\/blog\/?p=2295\" target=\"_blank\">Java SE 9 \u306e\u4e88\u7fd2<\/a><\/p>\n<p><a href=\"http:\/\/yucchi.jp\/blog\/?p=2298\" target=\"_blank\">Java SE 9 \u306e\u4e88\u7fd2 \u305d\u306e\uff12<\/a><\/p>\n<div id=\"scid:0767317B-992E-4b12-91E0-4F059A8CECA8:ea740278-a162-4b30-8596-0452987ccb1b\" class=\"wlWriterEditableSmartContent\" style=\"float: none; padding-bottom: 0px; padding-top: 0px; padding-left: 0px; margin: 0px; display: inline; padding-right: 0px\">Hatena \u30bf\u30b0: <a href=\"http:\/\/b.hatena.ne.jp\/t\/Java\" rel=\"tag\">Java<\/a><\/div>\n<div class='wp_social_bookmarking_light'>\n            <div class=\"wsbl_hatena\"><a href='\/\/b.hatena.ne.jp\/add?mode=confirm&url=http%3A%2F%2Fyucchi.jp%2Fblog%2F%3Fp%3D2327&title=Java%20SE%209%20%E3%81%AE%E4%BA%88%E7%BF%92%20%E3%81%9D%E3%81%AE%EF%BC%93' title='\u3053\u306e\u30a8\u30f3\u30c8\u30ea\u30fc\u3092\u306f\u3066\u306a\u30d6\u30c3\u30af\u30de\u30fc\u30af\u306b\u8ffd\u52a0' rel=nofollow class='wp_social_bookmarking_light_a' target=_blank><img src='http:\/\/yucchi.jp\/blog\/wp-content\/plugins\/wp-social-bookmarking-light\/public\/images\/hatena.gif' alt='\u3053\u306e\u30a8\u30f3\u30c8\u30ea\u30fc\u3092\u306f\u3066\u306a\u30d6\u30c3\u30af\u30de\u30fc\u30af\u306b\u8ffd\u52a0' title='\u3053\u306e\u30a8\u30f3\u30c8\u30ea\u30fc\u3092\u306f\u3066\u306a\u30d6\u30c3\u30af\u30de\u30fc\u30af\u306b\u8ffd\u52a0' width='16' height='12' class='wp_social_bookmarking_light_img' \/><\/a><\/div>\n            <div class=\"wsbl_facebook\"><a href='http:\/\/www.facebook.com\/share.php?u=http%3A%2F%2Fyucchi.jp%2Fblog%2F%3Fp%3D2327&t=Java%20SE%209%20%E3%81%AE%E4%BA%88%E7%BF%92%20%E3%81%9D%E3%81%AE%EF%BC%93' title='Facebook \u306b\u30b7\u30a7\u30a2' rel=nofollow class='wp_social_bookmarking_light_a' target=_blank><img src='http:\/\/yucchi.jp\/blog\/wp-content\/plugins\/wp-social-bookmarking-light\/public\/images\/facebook.png' alt='Facebook \u306b\u30b7\u30a7\u30a2' title='Facebook \u306b\u30b7\u30a7\u30a2' width='16' height='16' class='wp_social_bookmarking_light_img' \/><\/a><\/div>\n            <div class=\"wsbl_google_plus_one\"><g:plusone size=\"medium\" annotation=\"none\" href=\"http:\/\/yucchi.jp\/blog\/?p=2327\" ><\/g:plusone><\/div>\n            <div class=\"wsbl_twitter\"><a href=\"https:\/\/twitter.com\/share\" class=\"twitter-share-button\" data-url=\"http:\/\/yucchi.jp\/blog\/?p=2327\" data-text=\"Java SE 9 \u306e\u4e88\u7fd2 \u305d\u306e\uff13\" data-lang=\"ja\">Tweet<\/a><\/div>\n    <\/div>\n<br class='wp_social_bookmarking_light_clear' \/>\n","protected":false},"excerpt":{"rendered":"<p>Java SE 9 \u306e\u4e88\u7fd2 \u305d\u306e\uff13\u3067\u3059\u3002 \u4eca\u56de\u306e\u30a8\u30f3\u30c8\u30ea\u30fc\u306f JShell \u3067\u3059\u3002 JShell \u306f\u591a\u304f\u306e\u958b\u767a\u8005\u304b\u3089\u671f\u5f85\u3055\u308c\u3066\u304a\u308a\u30cd\u30c3\u30c8\u4e0a\u306b\u60c5\u5831\u304c\u3042\u3075\u308c\u3066\u3044\u307e\u3059\u3002 \u7279\u306b\u300c\u6700\u65b0Java\u60c5\u5831\u5c40\u300d\u306e\u9023\u8f09\u8a18\u4e8b\u306f\u89e3\u308a\u3084\u3059\u304f\u304a\u52e7\u3081\u3067\u3059\u3002 \u305d\u3053\u3067\u4eca\u56de\u306e\u30a8\u30f3\u30c8\u30ea\u30fc\u306f\u300c\u3053\u3093\u306a\u4f7f\u3044\u65b9\u306f\u3057\u306a\u3044\u3060\u308d\u3046\u300d\u3068\u3044\u3046\u5185\u5bb9\u306e\u3082\u306e\u3092\u66f8\u304d\u307e\u3059\u3002 \u3064\u307e\u308a\u3001\u305f\u3060\u306e\u304a\u904a\u3073\u3067\u3059\u3002 \u3067\u3082\u30cd\u30c3\u30c8\u4e0a\u3067\u3053\u306e\u60c5\u5831\u3092\u898b\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u306e\u306f\u6b64\u51e6\u3060\u3051\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3088\u3002(^_^; \u305d\u308c\u3060\u3051\u5fc5\u8981\u304c\u306a\u3044\u7121\u99c4\u306a\u60c5\u5831\u3068\u8a00\u3048\u307e\u3059\u3002 \u305d\u308c\u3067\u306f\u904e\u53bb\u306e\u30a8\u30f3\u30c8\u30ea\u30fc\u3092\u307e\u305a\u3054\u89a7\u304f\u3060\u3055\u3044\u3002 \u3088\u304f\u898b\u304b\u3051\u308b\u30cd\u30bf IntegerCache \u554f\u984c Java \u3067\u306f\u3088\u304f\u77e5\u3089\u308c\u3066\u3044\u308b Integ\u2026<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[17],"class_list":["post-2327","post","type-post","status-publish","format-standard","hentry","category-java","tag-java"],"_links":{"self":[{"href":"http:\/\/yucchi.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts\/2327","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/yucchi.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/yucchi.jp\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/yucchi.jp\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/yucchi.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2327"}],"version-history":[{"count":1,"href":"http:\/\/yucchi.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts\/2327\/revisions"}],"predecessor-version":[{"id":2328,"href":"http:\/\/yucchi.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts\/2327\/revisions\/2328"}],"wp:attachment":[{"href":"http:\/\/yucchi.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2327"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/yucchi.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2327"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/yucchi.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2327"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}