{"id":680,"date":"2022-08-01T19:04:06","date_gmt":"2022-08-01T10:04:06","guid":{"rendered":"https:\/\/light-of-moe.ddo.jp\/~sakura\/diary\/?p=680"},"modified":"2022-08-11T22:14:41","modified_gmt":"2022-08-11T13:14:41","slug":"java%e3%81%8c%e5%88%86%e3%81%8b%e3%82%89%e3%81%aa%e3%81%99%e3%81%8e%e3%82%8b%e3%81%ae%e3%81%a7%e3%80%81jvm%e3%81%ab%e3%81%a4%e3%81%84%e3%81%a6%e5%8b%89%e5%bc%b7%e3%81%99%e3%82%8b1","status":"publish","type":"post","link":"https:\/\/light-of-moe.ddo.jp\/~sakura\/diary\/?p=680","title":{"rendered":"Java\u304c\u5206\u304b\u3089\u306a\u3059\u304e\u308b\u306e\u3067\u3001JVM\u306b\u3064\u3044\u3066\u52c9\u5f37\u3059\u308b(1)"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">\u80cc\u666f\u3068\u304b\u76ee\u7684\u3068\u304b<\/h2>\n\n\n\n<p>\u6700\u8fd1\u3001<code>Clojure<\/code> \u3092\u3061\u3087\u3063\u3068\u771f\u9762\u76ee\u306b\u4f7f\u304a\u3046\u3068\u8003\u3048\u3066\u3044\u307e\u3059\u3002\u304c\u3001\u81ea\u5206\u306fJava\u306e\u7d4c\u9a13\u304c\u5727\u5012\u7684\u306b\u4e0d\u8db3\u3057\u3066\u3044\u307e\u3059\u3002\u304a\u4ed5\u4e8b\u3067\u4f7f\u3063\u305f\u3053\u3068\u306f\u3042\u308a\u307e\u3059\u304c\u3001\u305d\u308c\u3067\u3082Java\u306e\u52d5\u4f5c\u306e\u4ed5\u7d44\u307f\u306a\u3069\u306b\u3064\u3044\u3066\u306f\u66d6\u6627\u306a\u307e\u307e\u3067\u904e\u3054\u3057\u3066\u3044\u307e\u3057\u305f\u3002\u305d\u3046\u3044\u3046\u72b6\u614b\u3060\u3068\u3001<code>Clojure<\/code> \u3067\u30c8\u30e9\u30d6\u3063\u305f\u6642\u306b\u52d8\u6240\u304c\u5206\u304b\u3089\u306a\u304f\u3066\u56f0\u308b\u3068\u3044\u3046\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002(\u65e2\u306b\u4f55\u56de\u304b\u906d\u9047\u3057\u3066\u3044\u307e\u3059)<br><br>\u3042\u3068\u3001\u76f4\u8fd1\u306e\u696d\u52d9\u3067\u3082JVM\u306e\u3053\u3068\u3092\u77e5\u3063\u3066\u3044\u306a\u3044\u3068\u8272\u3005\u56f0\u308b\u3053\u3068\u304c\u3042\u308b\u306a\u3041\u3068\u611f\u3058\u308b\u3053\u3068\u304c\u5c11\u306a\u304b\u3089\u305a\u3042\u308b\u306e\u3067\u89b3\u5ff5\u3057\u3066JVM\u306b\u3064\u3044\u3066\u52c9\u5f37\u3092\u59cb\u3081\u3088\u3046\u304b\u3068\u601d\u3044\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p>\u4eca\u306e\u81ea\u5206\u306f\u3001Java\u306fJava\u4eee\u60f3\u30de\u30b7\u30f3(JVM)\u3067\u5b9f\u884c\u3055\u308c\u3066\u304a\u308a\u3001JVM\u306f\u72ec\u81ea\u306e\u30a2\u30bb\u30f3\u30d6\u30e9(\u30d0\u30a4\u30c8\u30b3\u30fc\u30c9)\u3092\u6301\u3064\u30b9\u30bf\u30c3\u30af\u30de\u30b7\u30f3\u306e\u3088\u3046\u306a\u4eee\u60f3\u30de\u30b7\u30f3\u3067\u3059\u3002java\u306e\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u306f\u3001javac\u306b\u3088\u3063\u3066\u30d0\u30a4\u30c8\u30b3\u30fc\u30c9\u306b\u5909\u63db\u3055\u308c\u3001\u305d\u308c\u3092JVM\u304c\u5b9f\u884c\u3059\u308b\u3053\u3068\u3067\u52d5\u4f5c\u3057\u3066\u3044\u307e\u3059\u3002\u3068\u3044\u3046\u3088\u3046\u306a\u8a8d\u8b58\u3092\u6301\u3063\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u7406\u89e3\u306e\u7cbe\u5ea6\u3092\u9ad8\u3081\u305f\u3044\u3068\u3044\u3046\u306e\u304c\u76ee\u7684\u3067\u3059\u3002<br><br>\u7406\u89e3\u304c\u66d6\u6627\u306b\u306a\u3063\u3066\u3044\u308b\u3068\u3053\u308d\u3092\u66f8\u3044\u3066\u304a\u304d\u307e\u3059<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>classpath\u306e\u53d6\u308a\u6271\u3044<\/li><li>\u30d0\u30a4\u30c8\u30b3\u30fc\u30c9\u304b\u3089\u30b7\u30b9\u30c6\u30e0\u30b3\u30fc\u30eb\u306a\u3069\u306e\u30cd\u30a4\u30c6\u30a3\u30d6\u306a\u4e16\u754c\u306b\u3069\u3046\u3084\u3063\u3066\u30a2\u30af\u30bb\u30b9\u3057\u3066\u3044\u308b\u306e\u304b<\/li><li>JVM\u81ea\u4f53\u304c\u30d0\u30a4\u30c8\u30b3\u30fc\u30c9\u3092\u3069\u306e\u3088\u3046\u306b\u89e3\u91c8\u3057\u3066\u5b9f\u884c\u3057\u3066\u3044\u308b\u306e\u304b<\/li><li>jps\u306a\u3069\u3067Java\u306e\u60c5\u5831\u304c\u53ce\u96c6\u51fa\u6765\u308b\u4ed5\u7d44\u307f\u304c\u3042\u308b\u304c\u3069\u3046\u3084\u3063\u3066\u3044\u308b\u306e\u304b<\/li><\/ul>\n\n\n\n<p>\u4eca\u56de\u306e\u8abf\u67fb\u3067\u6271\u308f\u306a\u3044\u3053\u3068<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>GC\u306e\u8a73\u7d30<\/li><li>\u30b3\u30f3\u30d1\u30a4\u30e9\u306e\u8a73\u7d30<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u74b0\u5883\u306a\u3069<\/h2>\n\n\n\n<p>\u30db\u30b9\u30c8OS\u306fArch Linux\u3067\u3059\u3002\u7279\u306b\u30d0\u30fc\u30b8\u30e7\u30f3\u3068\u304b\u306f\u306a\u3044\u3067\u3059\u3002\u5229\u7528\u3057\u3066\u3044\u308bjava\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u306f\u4ee5\u4e0b\u306e\u51fa\u529b\u306e\u3068\u304a\u308a\u3067\u3059\u3002 sdkman\u3067\u3001<code>18-open<\/code> \u3092\u6307\u5b9a\u3057\u3066\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u305f\u3082\u306e\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-plain\"><code>$ java -version \nopenjdk version &quot;18&quot; 2022-03-22\nOpenJDK Runtime Environment (build 18+36-2087)\nOpenJDK 64-Bit Server VM (build 18+36-2087, mixed mode, sharing)<\/code><\/pre><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><code>class<\/code> \u30d5\u30a1\u30a4\u30eb\u306b\u3064\u3044\u3066<\/h2>\n\n\n\n<p>class\u30d5\u30a1\u30a4\u30eb\u306b\u306f1\u3064\u306e\u30af\u30e9\u30b9\u3057\u304b\u5b9a\u7fa9\u3067\u304d\u306a\u3044\u4ed5\u69d8\u306e\u3088\u3046\u3067\u3059\u3002\u5185\u90e8\u30af\u30e9\u30b9\u306a\u3069\u306b\u3082\u5bfe\u5fdc\u3057\u3066\u30af\u30e9\u30b9\u30d5\u30a1\u30a4\u30eb\u3092\u4f5c\u308b\u5fc5\u8981\u304c\u3042\u308a\u3001\u5358\u4e00\u306e\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u304b\u3089\u8907\u6570\u306eclass\u30d5\u30a1\u30a4\u30eb\u304c\u51fa\u6765\u308b\u3053\u3068\u3082\u3042\u308b\u3088\u3046\u3067\u3059\u3002<br><\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>This chapter describes the class file format of the Java Virtual Machine.<br>Each class file contains the definition of a single class, interface, or module.<\/p><cite><a href=\"https:\/\/docs.oracle.com\/javase\/specs\/jvms\/se18\/html\/jvms-4.html#jvms-4.1\">https:\/\/docs.oracle.com\/javase\/specs\/jvms\/se18\/html\/jvms-4.html#jvms-4.1<\/a><\/cite><\/blockquote>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-java\" data-file=\"TestInnerOuterClass.java\" data-lang=\"Java\" data-show-lang=\"1\"><code>import java.io.Serializable;\npublic class TestInnerOuterClass {\n    class TestInnerChild{\n    }\n    Serializable annoymousTest = new Serializable() {\n    };\n}<\/code><\/pre><\/div>\n\n\n\n<p>\u4e0a\u8a18\u306e\u3088\u3046\u306a\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u3092\u30b3\u30f3\u30d1\u30a4\u30eb\u3059\u308b\u3068\u3001<code>javac<\/code> \u306f\u8907\u6570\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u51fa\u529b\u3057\u307e\u3059\u3002<br>\u5177\u4f53\u7684\u306b\u306f\u3001\u4ee5\u4e0b\u306e3\u3064\u306e\u30d5\u30a1\u30a4\u30eb\u304c\u51fa\u529b\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-plain\"><code>&#39;TestInnerOuterClass$1.class&#39;  \n&#39;TestInnerOuterClass$TestInnerChild.class&#39;   \nTestInnerOuterClass.class   <\/code><\/pre><\/div>\n\n\n\n<p>\u3064\u307e\u308a\u3001\u5185\u90e8\u30af\u30e9\u30b9\u306b\u95a2\u3057\u3066\u30821\u3064\u306e\u30af\u30e9\u30b9\u3068\u3057\u3066<code>class<\/code> \u30d5\u30a1\u30a4\u30eb\u304c\u751f\u6210\u3055\u308c\u307e\u3059\u3002<br>C\u8a00\u8a9e\u306a\u3069\u306e\u30b3\u30f3\u30d1\u30a4\u30e9\u3067\u306f\u3001\u7ffb\u8a33\u5358\u4f4d(1\u3064\u306ec\u8a00\u8a9e\u30bd\u30fc\u30b9\u30d5\u30a1\u30a4\u30eb\u3068\u304b\u30d8\u30c3\u30c0\u30fc)\u306b\u5bfe\u3057\u30661\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u30d5\u30a1\u30a4\u30eb\u304c\u51fa\u6765\u307e\u3059\u304c\u3001java\u3067\u306f\u5fc5\u305a\u3057\u3082\u305d\u3046\u3067\u306a\u304f1\u3064\u306e\u7ffb\u8a33\u5358\u4f4d\u306b\u5bfe\u3057\u3066\u8907\u6570\u306e\u30d5\u30a1\u30a4\u30eb\u304c\u751f\u6210\u3055\u308c\u308b\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u306d\u3002\u307e\u305f\u3001\u30af\u30e9\u30b9\u30d5\u30a1\u30a4\u30eb\u306b\u3042\u308b <code>$<\/code> \u306f\u30af\u30e9\u30b9\u540d\u3068\u5185\u90e8\u30af\u30e9\u30b9\u306e\u540d\u524d\u3092\u5206\u96e2\u3059\u308b\u305f\u3081\u306e\u30bb\u30d1\u30ec\u30fc\u30bf\u7684\u306a\u3082\u306e\u306e\u3088\u3046\u3067\u3059\u3002<\/p>\n\n\n\n<p><code>javap<\/code> \u30b3\u30de\u30f3\u30c9\u3092\u5229\u7528\u3059\u308b\u3068\u3001class\u30d5\u30a1\u30a4\u30eb\u306e\u4e2d\u8eab\u3092\u8aad\u3080\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-plain\"><code>javap  TestInnerOuterClass.class\nCompiled from &quot;TestInnerOuterClass.java&quot;\npublic class TestInnerOuterClass {\n  java.io.Serializable annoymousTest;\n  public TestInnerOuterClass();\n}<\/code><\/pre><\/div>\n\n\n\n<p>\u3055\u3089\u306b\u3001<code>-v<\/code> \u30aa\u30d7\u30b7\u30e7\u30f3\u3067\u8a73\u7d30\u3092\u8aad\u3080\u3053\u3068\u3082\u51fa\u6765\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-plain\"><code>$ javap -v TestInnerOuterClass.class\nClassfile \/home\/sakura\/sandbox\/java-test\/TestInnerOuterClass.class\n  Last modified 2022\/07\/28; size 473 bytes\n  MD5 checksum 9127bb6529da480495471b41a42aedf2\n  Compiled from &quot;TestInnerOuterClass.java&quot;\npublic class TestInnerOuterClass\n  minor version: 0\n  major version: 62\n  flags: ACC_PUBLIC, ACC_SUPER\nConstant pool:\n   #1 = Methodref          #2.#3          \/\/ java\/lang\/Object.&quot;&lt;init&gt;&quot;:()V\n   #2 = Class              #4             \/\/ java\/lang\/Object\n   #3 = NameAndType        #5:#6          \/\/ &quot;&lt;init&gt;&quot;:()V\n   #4 = Utf8               java\/lang\/Object\n   #5 = Utf8               &lt;init&gt;\n   #6 = Utf8               ()V\n   #7 = Class              #8             \/\/ TestInnerOuterClass$1\n   #8 = Utf8               TestInnerOuterClass$1\n   #9 = Methodref          #7.#10         \/\/ TestInnerOuterClass$1.&quot;&lt;init&gt;&quot;:(LTestInnerOuterClass;)V\n  #10 = NameAndType        #5:#11         \/\/ &quot;&lt;init&gt;&quot;:(LTestInnerOuterClass;)V\n  #11 = Utf8               (LTestInnerOuterClass;)V\n  #12 = Fieldref           #13.#14        \/\/ TestInnerOuterClass.annoymousTest:Ljava\/io\/Serializable;\n  #13 = Class              #15            \/\/ TestInnerOuterClass\n  #14 = NameAndType        #16:#17        \/\/ annoymousTest:Ljava\/io\/Serializable;\n  #15 = Utf8               TestInnerOuterClass\n  #16 = Utf8               annoymousTest\n  #17 = Utf8               Ljava\/io\/Serializable;\n  #18 = Utf8               Code\n  #19 = Utf8               LineNumberTable\n  #20 = Utf8               SourceFile\n  #21 = Utf8               TestInnerOuterClass.java\n  #22 = Utf8               NestMembers\n  #23 = Class              #24            \/\/ TestInnerOuterClass$TestInnerChild\n  #24 = Utf8               TestInnerOuterClass$TestInnerChild\n  #25 = Utf8               InnerClasses\n  #26 = Utf8               TestInnerChild\n{\n  java.io.Serializable annoymousTest;\n    descriptor: Ljava\/io\/Serializable;\n    flags:\n\n  public TestInnerOuterClass();\n    descriptor: ()V\n    flags: ACC_PUBLIC\n    Code:\n      stack=4, locals=1, args_size=1\n         0: aload_0\n         1: invokespecial #1                  \/\/ Method java\/lang\/Object.&quot;&lt;init&gt;&quot;:()V\n         4: aload_0\n         5: new           #7                  \/\/ class TestInnerOuterClass$1\n         8: dup\n         9: aload_0\n        10: invokespecial #9                  \/\/ Method TestInnerOuterClass$1.&quot;&lt;init&gt;&quot;:(LTestInnerOuterClass;)V\n        13: putfield      #12                 \/\/ Field annoymousTest:Ljava\/io\/Serializable;\n        16: return\n      LineNumberTable:\n        line 3: 0\n        line 8: 4\n}\nSourceFile: &quot;TestInnerOuterClass.java&quot;\nError: unknown attribute\n  NestMembers: length = 0x6\n   00 02 00 17 00 07\nInnerClasses:\n     #7; \/\/class TestInnerOuterClass$1\n     #26= #23 of #13; \/\/TestInnerChild=class TestInnerOuterClass$TestInnerChild of class TestInnerOuterClass<\/code><\/pre><\/div>\n\n\n\n<p><code>class<\/code> \u30d5\u30a1\u30a4\u30eb\u306b\u95a2\u3057\u3066\u306f\u4e00\u65e6\u3053\u3053\u307e\u3067\u3067\u3001\u6b21\u306b\u6c17\u306b\u306a\u3063\u3066\u3044\u308b\u30af\u30e9\u30b9\u306e\u30ed\u30fc\u30c0\u30fc\u306b\u3064\u3044\u3066\u8abf\u3079\u3066\u3044\u304d\u307e\u3059\u3002<br><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u30af\u30e9\u30b9\u30ed\u30fc\u30c0\u306b\u3064\u3044\u3066<\/h2>\n\n\n\n<p>\u6b21\u306b\u3001Java\u304c\u5b9f\u884c\u6642\u306b <code>class<\/code> \u30d5\u30a1\u30a4\u30eb\u3092\u8aad\u307f\u8fbc\u3080\u4ed5\u7d44\u307f\u3067\u3042\u308b\u30af\u30e9\u30b9\u30ed\u30fc\u30c0\u306b\u3064\u3044\u3066\u6b21\u306f\u898b\u3066\u3044\u304d\u307e\u3059\u3002Java\u306f\u5b9f\u884c\u6642\u306b\u8aad\u3080class\u30d5\u30a1\u30a4\u30eb\u304c3\u7a2e\u985e\u3042\u308b\u3088\u3046\u3067\u3059\u3002<br><br><strong>Bootstrap classes<\/strong>: \u30e9\u30f3\u30bf\u30a4\u30e0\u304c\u4f7f\u3046\u30af\u30e9\u30b9(rt.jar)\u3084\u3001i18n.jar\u306a\u3069\u3002<code>jre\/lib\/rt.jar<\/code> \u3084 <code>jre\/lib\/<\/code> \u306b\u3042\u308b\u30d5\u30a1\u30a4\u30eb<br><strong>Installed extensions<\/strong>: <code>&lt;JAVA_HOME&gt;\/jre\/lib\/ext<\/code> \u306e\u30d5\u30a1\u30a4\u30eb<br><strong>The class path<\/strong>: \u74b0\u5883\u5909\u6570\u3084\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u5f15\u6570\u306a\u3069\u3067\u4e0e\u3048\u3089\u308c\u305f\u3001classpath\u304b\u3089\u8aad\u307f\u3068\u308b\u30af\u30e9\u30b9<\/p>\n\n\n\n<p><br>\u305f\u3060\u3057\u3001\u3053\u308c\u3089\u306e\u533a\u5206\u3051\u306f\u53c2\u8003\u306b\u3057\u305f\u8cc7\u6599\u304c\u53e4\u304f\u5b9f\u60c5\u3068\u5408\u3063\u3066\u306a\u3044\u6c17\u304c\u3059\u308b\u306e\u3067\u8ffd\u52a0\u3067\u8abf\u67fb\u304c\u5fc5\u8981\u305d\u3046\u3067\u3059\u3002<br>\u53c2\u8003\u306b\u3057\u305f\u30ea\u30f3\u30af\u306a\u3069\u306f\u4ee5\u4e0b\u3067\u3059\u3002<br><br><a href=\"https:\/\/qiita.com\/ysk24ok\/items\/57daed08592f7f8d1bea\">https:\/\/qiita.com\/ysk24ok\/items\/57daed08592f7f8d1bea<\/a><br><a href=\"https:\/\/docs.oracle.com\/javase\/8\/docs\/technotes\/tools\/findingclasses.html\">https:\/\/docs.oracle.com\/javase\/8\/docs\/technotes\/tools\/findingclasses.html<\/a><br><a href=\"https:\/\/docs.oracle.com\/javase\/specs\/jvms\/se7\/html\/jvms-5.html\">https:\/\/docs.oracle.com\/javase\/specs\/jvms\/se7\/html\/jvms-5.html<\/a><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">jar\u30d5\u30a1\u30a4\u30eb\u306e\u6271\u3044\u306b\u3064\u3044\u3066<\/h3>\n\n\n\n<p>class\u30d5\u30a1\u30a4\u30eb\u3092\u307e\u3068\u3081\u305f\u3082\u306e\u3067\u3059\u3002zip\u5f62\u5f0f\u3067 <code>unzip<\/code> \u306a\u3069\u3067\u5c55\u958b\u3067\u304d\u307e\u3059\u3002<br><code>MANIFEST.MF<\/code> \u3001<code>ResourceBundle<\/code> \u306a\u3069\u306e\u60c5\u5831\u3082\u307e\u3068\u3081\u308b\u3053\u3068\u304c\u51fa\u6765\u308b\u3002\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u4ed5\u69d8\u304c\u5b9a\u3081\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p><a href=\"https:\/\/docs.oracle.com\/javase\/7\/docs\/technotes\/guides\/jar\/jar.html\">https:\/\/docs.oracle.com\/javase\/7\/docs\/technotes\/guides\/jar\/jar.html<\/a><br><a href=\"https:\/\/docs.oracle.com\/en\/java\/javase\/17\/docs\/api\/java.base\/java\/util\/ResourceBundle.html\">https:\/\/docs.oracle.com\/en\/java\/javase\/17\/docs\/api\/java.base\/java\/util\/ResourceBundle.html<\/a><\/p>\n\n\n\n<p><br><code>java -classpath foo.jar<\/code> \u3067\u8aad\u3080\u3068\u304d\u3068 <code>java -jar foo.jar<\/code> \u3067\u52d5\u4f5c\u304c\u7570\u306a\u308b\u3053\u3068\u306b\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002jar\u30d5\u30a1\u30a4\u30eb\u3092\u8aad\u3080\u3068\u3001classpath\u306bjar\u30d5\u30a1\u30a4\u30eb\u5185\u90e8\u306eclassfiles\u304cclasspath\u306b\u8ffd\u52a0\u3055\u308c\u308b\u3088\u3046\u306a\u52d5\u4f5c\u306b\u306a\u308b\u3088\u3046\u3067\u3059\u3002<br><code>-jar<\/code> \u30aa\u30d7\u30b7\u30e7\u30f3\u3092\u4f7f\u3063\u305f\u5834\u5408\u306f\u3001MANIFEST.MF \u306a\u3069\u3092\u8aad\u307fmain\u306e\u5834\u6240\u306a\u3069\u3092\u7279\u5b9a\u3057\u3066\u5b9f\u884c\u3057\u3066\u304f\u308c\u307e\u3059\u3002\u307e\u305f\u3001java -jar\u306e\u6642\u306f\u3001\u7279\u5225\u306a\u52d5\u4f5c\u3092\u3059\u308b\u3088\u3046\u3067\u3059\u3002MANIFEST.MF\u3092\u8aad\u307f\u306b\u884c\u3063\u3066\u3001\u305d\u3053\u306b\u66f8\u3044\u3066\u3042\u308b\u30e1\u30bf\u30c7\u30fc\u30bf\u3092\u4f7f\u3063\u3066\u8af8\u3005\u306e\u8a2d\u5b9a\u3092\u884c\u306a\u3046\u3088\u3046\u3067\u3059\u3002\u3053\u3053\u306b <code>Class-Path<\/code> \u3068\u3044\u3063\u305f\u5024\u3092\u66f8\u304f\u3053\u3068\u304c\u51fa\u6765\u307e\u3059\u3002\u4e00\u65b9\u3067\u3001<code>-jar <\/code>\u3092\u5229\u7528\u3059\u308b\u5834\u5408\u306f <code>-cp <\/code>\u304c\u7121\u8996\u3055\u308c\u307e\u3059\u3002<code>.properties<\/code> \u30d5\u30a1\u30a4\u30eb\u306b\u95a2\u3059\u308b\u4ed5\u7d44\u307f\u3082\u3053\u306e\u8fba\u308a\u306e\u4ed5\u69d8\u3092\u6291\u3048\u3066\u304a\u304f\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>jar\u30d5\u30a1\u30a4\u30eb\u306e\u4f5c\u308a\u304b\u305f<br><a href=\"https:\/\/www.ne.jp\/asahi\/hishidama\/home\/tech\/java\/jar.html\">https:\/\/www.ne.jp\/asahi\/hishidama\/home\/tech\/java\/jar.html<\/a><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u72ec\u81ea\u306e\u30af\u30e9\u30b9\u30ed\u30fc\u30c0\u30fc<\/h3>\n\n\n\n<p>ClassLoader\u306f\u81ea\u5206\u3067\u4f5c\u308b\u3053\u3068\u3082\u51fa\u6765\u3066\u3001\u5b9f\u884c\u6642\u306b\u81ea\u7531\u306b\u30af\u30e9\u30b9\u3092\u547c\u3093\u3067\u52d5\u4f5c\u3092\u5909\u66f4\u3057\u305f\u308a\u3068\u3044\u3063\u305f\u3053\u3068\u3082\u5b9f\u73fe\u51fa\u6765\u308b\u3088\u3046\u3067\u3059\u3002<code>URLClassLoader<\/code> \u3092\u7d99\u627f\u3057\u3066\u4f5c\u308b\u306e\u304c\u826f\u3044\u3088\u3046\u3067\u3059\u306d\u3002<br><a href=\"https:\/\/docs.oracle.com\/javase\/jp\/18\/docs\/api\/java.base\/java\/net\/URLClassLoader.html\">https:\/\/docs.oracle.com\/javase\/jp\/18\/docs\/api\/java.base\/java\/net\/URLClassLoader.html<\/a><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Java\u6a19\u6e96\u306e\u30af\u30e9\u30b9\u9054\u306e\u5728\u51e6<\/h3>\n\n\n\n<p><code>&lt;JAVA_HOME&gt;\/lib<\/code> \u306e\u4e0b\u3092\u78ba\u8a8d\u3057\u3066\u307f\u308b\u3068\u3001jar\u30d5\u30a1\u30a4\u30eb\u3084class\u30d5\u30a1\u30a4\u30eb\u304c\u7121\u304f\u3001so\u30d5\u30a1\u30a4\u30eb\u3070\u304b\u308a\u304c\u3042\u308a\u307e\u3057\u305f\u3002<br>\u3044\u308d\u3044\u308d\u8abf\u3079\u3066\u307f\u308b\u3068\u3001<code>modules<\/code> \u3068\u3044\u3046\u30d5\u30a1\u30a4\u30eb\u304c\u3042\u308a\u3001\u3053\u308c\u306b\u683c\u7d0d\u3055\u308c\u3066\u3044\u308b\u3088\u3046\u3067\u3059\u3002<code>jimage extract modules<\/code>\u3059\u308b\u3053\u3068\u3067\u5c55\u958b\u3067\u304d\u3001\u3053\u306e\u4e2d\u306b\u8d77\u52d5\u6642\u306b\u8aad\u307f\u8fbc\u3080class\u30d5\u30a1\u30a4\u30eb\u305f\u3061\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3057\u305f\u3002\u3053\u306e\u8fba\u306fjdk\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u306a\u3069\u306b\u3088\u3063\u3066\u3082\u9055\u3046\u3088\u3046\u3067\u3059\u3002<br><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u30d1\u30c3\u30b1\u30fc\u30b8\u3068\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306a\u3069\u306b\u3064\u3044\u3066<\/h2>\n\n\n\n<p>Java\u3060\u3068\u30d1\u30c3\u30b1\u30fc\u30b8\u306e\u533a\u5206\u3051\u3068\u3057\u3066\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3092\u4f7f\u3046\u3053\u3068\u304c\u4e00\u822c\u7684\u3067\u3059\u3002<br><code>javac<\/code> \u3068\u3057\u3066\u306f\u7279\u306b\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u304c\u30d1\u30c3\u30b1\u30fc\u30b8\u306e\u540d\u524d\u3068\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u304c\u4e00\u81f4\u3057\u3066\u3044\u306a\u304f\u3066\u3082\u30b3\u30f3\u30d1\u30a4\u30eb\u51fa\u6765\u305f\u308a\u3057\u307e\u3059\u3002(<code>-d<\/code> \u3092\u4ed8\u3051\u308b\u3068\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3068\u4e00\u81f4\u3059\u308b\u3088\u3046\u306b<code>class<\/code> \u30d5\u30a1\u30a4\u30eb\u304c\u751f\u6210\u3055\u308c\u308b\u3088\u3046\u3067\u3059)<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-java\" data-file=\"OtherClass.java\" data-lang=\"Java\"><code>package jp.other;\n\npublic class OtherClass {\n\tstatic public void hello() {\n\t\tSystem.out.println(&quot;Hello, Other world.&quot;);\n\t}\n}<\/code><\/pre><\/div>\n\n\n\n<p>\u3053\u306e\u3088\u3046\u306a\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u304c\u3042\u3063\u305f\u5834\u5408\u3001<code>javac OtherClass.java<\/code> \u3092\u5b9f\u884c\u3059\u308b\u3068<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-plain\"><code>$ javac OtherClass.java \n$ ls -l    \n\u5408\u8a08 8K\n-rw-r--r-- 1 sakura sakura 418  8\u6708  1 13:08 OtherClass.class\n-rw-r--r-- 1 sakura sakura 125  8\u6708  1 12:55 OtherClass.java<\/code><\/pre><\/div>\n\n\n\n<p>\u3053\u306e\u3088\u3046\u306b\u30ab\u30ec\u30f3\u30c8\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306b\u3001<code>class<\/code> \u30d5\u30a1\u30a4\u30eb\u306f\u751f\u6210\u3055\u308c\u307e\u3059\u3002<br>\u4e00\u65b9\u3001<code>-d<\/code>\u3092\u4ed8\u3051\u3066\u5b9f\u884c\u3057\u3066\u307f\u308b\u3068<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-plain\"><code>$ javac -d target OtherClass.java \n$ tree \n.\n\u251c\u2500\u2500 OtherClass.java\n\u2514\u2500\u2500 target\n    \u2514\u2500\u2500 jp\n        \u2514\u2500\u2500 other\n            \u2514\u2500\u2500 OtherClass.class\n\n3 directories, 2 files<\/code><\/pre><\/div>\n\n\n\n<p>\u4e0a\u8a18\u306e\u3088\u3046\u306b\u3001\u30d1\u30c3\u30b1\u30fc\u30b8\u540d\u306b\u5408\u308f\u305b\u3066\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u304c\u4f5c\u3089\u308c\u3066\u30b3\u30f3\u30d1\u30a4\u30eb\u7d50\u679c\u304c\u4fdd\u5b58\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u307e\u305f\u3001\u4f9d\u5b58\u95a2\u4fc2\u306e\u3042\u308b\u8907\u6570\u30d5\u30a1\u30a4\u30eb\u306e\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u3092\u30b3\u30f3\u30d1\u30a4\u30eb\u3059\u308b\u5834\u5408\u3067\u3042\u3063\u3066\u3082\u3001<code>javac<\/code> \u30b3\u30de\u30f3\u30c9\u306b\u4e21\u65b9\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u6e21\u3057\u3066\u3057\u307e\u3048\u3070\u4e0a\u624b\u304f\u30b3\u30f3\u30d1\u30a4\u30eb\u3057\u3066\u304f\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-java\" data-file=\"HelloWorld.java\" data-lang=\"Java\"><code>class HelloWorld {\n\tpublic static void main(String[] args) {\n    jp.other.OtherClass.hello(); \/\/ \u5225\u30d1\u30c3\u30b1\u30fc\u30b8\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3073\u3060\u3059\n\t\tSystem.out.println(&quot;Hello, world.&quot;);\n\t}\n}<\/code><\/pre><\/div>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-java\" data-file=\"OtherClass.java\" data-lang=\"Java\"><code>package jp.other; \/\/ \u5168\u7136\u9055\u3046\u30d1\u30c3\u30b1\u30fc\u30b8\u3092\u6307\u5b9a\npublic class OtherClass {\n\tstatic public void hello() {\n\t\tSystem.out.println(&quot;Hello, Other world.&quot;);\n\t}\n}<\/code><\/pre><\/div>\n\n\n\n<p>\u3053\u306e2\u3064\u306e\u30d5\u30a1\u30a4\u30eb\u3092 <code>javac HelloWorld.java OtherClass.java<\/code> \u3068\u3057\u3066\u307e\u3068\u3081\u3066\u30b3\u30f3\u30d1\u30a4\u30eb\u3059\u308b\u3068\u30b3\u30f3\u30d1\u30a4\u30eb\u51fa\u6765\u307e\u3059\u3002<code>HelloWorld.java<\/code> \u5358\u4f53\u3060\u3068\u30b3\u30f3\u30d1\u30a4\u30eb\u306b\u5931\u6557\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3057\u304b\u3057\u3001\u5b9f\u884c\u3092\u884c\u306a\u3046\u969b\u306b\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u306e\u30af\u30e9\u30b9\u30ed\u30fc\u30c0\u306f\u6307\u5b9a\u3057\u305fclasspath\u3068\u30d1\u30c3\u30b1\u30fc\u30b8\u540d\u306eprefix\u304b\u3089<code>class<\/code> \u30d5\u30a1\u30a4\u30eb\u3092\u898b\u3064\u3051\u308b\u52d5\u4f5c\u3092\u3057\u307e\u3059\u3002\u5f93\u3063\u3066\u3001\u7d50\u5c40\u30d1\u30c3\u30b1\u30fc\u30b8\u306e\u540d\u524d\u306b\u5408\u308f\u305b\u305f\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3092\u4f5c\u6210\u3057\u3001\u305d\u3053\u306b<code>classs<\/code>\u30d5\u30a1\u30a4\u30eb\u3092\u30b3\u30d4\u30fc\u3059\u308b\u3068\u3044\u3063\u305f\u4f5c\u696d\u304c\u5fc5\u8981\u306b\u306a\u308a\u307e\u3059\u3002<br><br>\u3053\u306e\u3042\u305f\u308a\u306e\u52d5\u4f5c\u306f\u4ee5\u4e0b\u306e\u30ea\u30f3\u30af\u306b\u5c11\u3057\u8a00\u53ca\u304c\u3042\u308a\u307e\u3059\u3002\u305f\u3060\u3001\u3053\u306e\u52d5\u4f5c\u304c\u5fc5\u305aJava\u306e\u4ed5\u69d8\u304b\u3068\u3044\u3046\u3068\u305d\u3046\u3067\u3082\u306a\u3055\u305d\u3046\u3067\u3059(Typically\u3067\u3059\u3057)<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>Typically, a class or interface will be represented using a file in a hierarchical file system, and the name of the class<br>or interface will be encoded in the pathname of the file to aid in locating it.<\/p><cite><a href=\"https:\/\/docs.oracle.com\/javase\/specs\/jvms\/se18\/html\/jvms-5.html#jvms-5.3.1\">https:\/\/docs.oracle.com\/javase\/specs\/jvms\/se18\/html\/jvms-5.html#jvms-5.3.1<\/a><\/cite><\/blockquote>\n\n\n\n<p>\u30d1\u30c3\u30b1\u30fc\u30b8\u540d\u3068\u5168\u304f\u95a2\u4fc2\u7121\u3044\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u69cb\u6210\u3067\u30bd\u30fc\u30b9\u3092\u7ba1\u7406\u3059\u308b\u3053\u3068\u306f\u4e0d\u53ef\u80fd\u3067\u306f\u306a\u3055\u305d\u3046\u3067\u3059\u304c\u3001\u6df1\u3044\u7406\u7531\u304c\u7121\u3044\u9650\u308a\u306f\u30d1\u30c3\u30b1\u30fc\u30b8\u540d\u3068\u4e00\u81f4\u3057\u305f\u5f62\u306e\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u7ba1\u7406\u3092\u884c\u306a\u3046\u65b9\u304c\u826f\u3055\u305d\u3046\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u9577\u304f\u306a\u3063\u305f\u306e\u3067\u7d9a\u304d\u306f\u6b21\u56de\u306b\u2026\u2026\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u80cc\u666f\u3068\u304b\u76ee\u7684\u3068\u304b \u6700\u8fd1\u3001Clojure \u3092\u3061\u3087\u3063\u3068\u771f\u9762\u76ee\u306b\u4f7f\u304a\u3046\u3068\u8003\u3048\u3066\u3044\u307e\u3059\u3002\u304c\u3001\u81ea\u5206\u306fJava\u306e\u7d4c\u9a13\u304c\u5727\u5012\u7684\u306b\u4e0d\u8db3\u3057\u3066\u3044\u307e\u3059\u3002\u304a\u4ed5\u4e8b\u3067\u4f7f\u3063\u305f\u3053\u3068\u306f\u3042\u308a\u307e\u3059\u304c\u3001\u305d\u308c\u3067\u3082Java\u306e\u52d5\u4f5c\u306e\u4ed5\u7d44\u307f\u306a\u3069\u306b\u3064\u3044\u3066\u306f\u66d6\u6627\u306a\u307e\u307e\u3067\u904e\u2026 <span class=\"read-more\"><a href=\"https:\/\/light-of-moe.ddo.jp\/~sakura\/diary\/?p=680\">\u7d9a\u304d\u3092\u8aad\u3080 &raquo;<\/a><\/span><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[6,7],"tags":[],"class_list":["post-680","post","type-post","status-publish","format-standard","hentry","category-java","category-7"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p4wwqG-aY","_links":{"self":[{"href":"https:\/\/light-of-moe.ddo.jp\/~sakura\/diary\/index.php?rest_route=\/wp\/v2\/posts\/680","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/light-of-moe.ddo.jp\/~sakura\/diary\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/light-of-moe.ddo.jp\/~sakura\/diary\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/light-of-moe.ddo.jp\/~sakura\/diary\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/light-of-moe.ddo.jp\/~sakura\/diary\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=680"}],"version-history":[{"count":67,"href":"https:\/\/light-of-moe.ddo.jp\/~sakura\/diary\/index.php?rest_route=\/wp\/v2\/posts\/680\/revisions"}],"predecessor-version":[{"id":779,"href":"https:\/\/light-of-moe.ddo.jp\/~sakura\/diary\/index.php?rest_route=\/wp\/v2\/posts\/680\/revisions\/779"}],"wp:attachment":[{"href":"https:\/\/light-of-moe.ddo.jp\/~sakura\/diary\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=680"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/light-of-moe.ddo.jp\/~sakura\/diary\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=680"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/light-of-moe.ddo.jp\/~sakura\/diary\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=680"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}