{"id":773,"date":"2022-08-04T19:48:05","date_gmt":"2022-08-04T10:48:05","guid":{"rendered":"https:\/\/light-of-moe.ddo.jp\/~sakura\/diary\/?p=773"},"modified":"2022-08-11T22:14:59","modified_gmt":"2022-08-11T13:14:59","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%8b3-jni%e7%b7%a8","status":"publish","type":"post","link":"https:\/\/light-of-moe.ddo.jp\/~sakura\/diary\/?p=773","title":{"rendered":"Java\u304c\u5206\u304b\u3089\u306a\u3059\u304e\u308b\u306e\u3067\u3001JVM\u306b\u3064\u3044\u3066\u52c9\u5f37\u3059\u308b(3) -JNI\u7de8-"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">JNI\u306e\u4ed5\u7d44\u307f\u306b\u3064\u3044\u3066<\/h2>\n\n\n\n<p>\u524d\u56de\u3067JVM\u306e\u30d7\u30ed\u30bb\u30b9\u60c5\u5831\u304c\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u4e0a\u306b\u683c\u7d0d\u3055\u308c\u3066\u3044\u3066\u3001\u305d\u308c\u3092\u89e3\u6790\u3059\u308b\u3053\u3068\u3067Jps\u306f\u8272\u3005\u60c5\u5831\u3092\u51fa\u529b\u3057\u3066\u3044\u308b\u3053\u3068\u304c\u5206\u304b\u308a\u307e\u3057\u305f\u3002\u3053\u308c\u3067JVM\u306e\u30d7\u30ed\u30bb\u30b9\u60c5\u5831\u306f\u3069\u3053\u3092\u898b\u308c\u3070\u826f\u3044\u306e\u304b\u3068\u3044\u3046\u306e\u304c\u5206\u304b\u308a\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p>\u4eca\u56de\u306f\u3001JVM\u304cglibc\u306a\u3069\u306e\u30cd\u30a4\u30c6\u30a3\u30d6\u306a\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u547c\u3073\u51fa\u3059\u4ed5\u7d44\u307f\u306b\u3064\u3044\u3066\u8abf\u67fb\u3057\u3066\u3044\u3053\u3046\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">JNI\u3068\u306f\uff1f<\/h2>\n\n\n\n<p>JNI\u306f\u3001Java Native Interface\u306e\u7565\u3067\u3059\u3002\u3053\u308c\u306f\u3001Java\u304b\u3089C\u306a\u3069\u306e\u30cd\u30a4\u30c6\u30a3\u30d6\u30b3\u30fc\u30c9\u3092\u547c\u3073\u51fa\u3059\u305f\u3081\u306e\u4ed5\u69d8\u3001\u30cd\u30a4\u30c6\u30a3\u30d6\u5074\u304b\u3089Java\u3092\u547c\u3073\u51fa\u3059\u969b(JNIEnv\u3068\u3057\u3066\u6e21\u3063\u3066\u304f\u308b\u5f15\u6570)\u306e\u4ed5\u69d8\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002Oracle\u306e\u6587\u66f8\u306f<a href=\"https:\/\/docs.oracle.com\/en\/java\/javase\/11\/docs\/specs\/jni\/index.html\">\u3053\u3061\u3089<\/a>\u3067\u3059\u3002Wikipedia\u306e\u6587\u66f8\u3082\u89aa\u5207\u3067<a href=\"https:\/\/ja.wikipedia.org\/wiki\/Java_Native_Interface\">\u826f\u3044\u611f\u3058<\/a>\u3067\u3057\u305f\u3002<br><br>\u307e\u305f\u3001\u540c\u7a2e\u306eJava\u306e\u30cd\u30a4\u30c6\u30a3\u30d6\u30b3\u30fc\u30c9\u3092\u547c\u3076\u4ed5\u7d44\u307f\u3068\u3057\u3066\u306f\u3001<a href=\"https:\/\/github.com\/java-native-access\/jna\">JNA<\/a>\u3068\u3044\u3046\u3082\u306e\u3082\u3042\u308a\u307e\u3059\u3002<br>\u3053\u306e\u6280\u8853\u306f\u3001libffi\u3092\u5229\u7528\u3057\u3066\u30cd\u30a4\u30c6\u30a3\u30d6\u306a\u30b3\u30fc\u30c9\u3092Java\u304b\u3089\u547c\u3073\u51fa\u3059\u6280\u8853\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306fJava\u306e\u30b3\u30fc\u30c9\u3092\u6e96\u5099\u3059\u308b\u3060\u3051\u3067\u624b\u8efd\u306b\u30cd\u30a4\u30c6\u30a3\u30d6\u30b3\u30fc\u30c9\u3092\u547c\u3073\u51fa\u3059\u3053\u3068\u304c\u51fa\u6765\u3066\u4fbf\u5229\u305d\u3046\u3067\u3059\u3002\u305f\u3060\u3001 <code>com.sun.java<\/code> \u3068\u3044\u3046\u30d1\u30c3\u30b1\u30fc\u30b8\u306b\u3042\u308b\u306e\u3067\u6614\u306f\u6a19\u6e96\u6a5f\u80fd\u3060\u3063\u305f\u3088\u3046\u3067\u3059\u304c\u3001\u4eca\u306f\u9069\u5b9c\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u3066\u4f7f\u3046\u5f62\u5f0f\u306b\u306a\u3063\u3066\u3044\u308b\u3088\u3046\u3067\u3059\u3002<br><br>\u3055\u3089\u306b\u3001<a href=\"https:\/\/openjdk.org\/projects\/panama\/\">panama<\/a>\u3068\u3044\u3046\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u304c\u3042\u3063\u3066\u30cd\u30a4\u30c6\u30a3\u30d6\u30b3\u30fc\u30c9\u306e\u547c\u3073\u51fa\u3057\u3092\u7c21\u5358\u306b\u3057\u3088\u3046\u3068\u3057\u3066\u3044\u308b\u3088\u3046\u3067\u3059\u3002<br><br>\u3044\u308d\u3044\u308d\u30cd\u30a4\u30c6\u30a3\u30d6\u306a\u30b3\u30fc\u30c9\u3092\u547c\u3073\u51fa\u3059\u624b\u6bb5\u306f\u3042\u308b\u3088\u3046\u3067\u3059\u304c\u3001\u57fa\u672c\u7684\u306bJVM\u306e\u5185\u90e8\u3067\u306e\u30cd\u30a4\u30c6\u30a3\u30d6\u30b3\u30fc\u30c9\u306e\u547c\u3073\u51fa\u3057\u306fJNI\u3092\u5229\u7528\u3057\u3066\u3044\u308b\u3088\u3046\u3067\u3059\u3002\u306a\u306e\u3067\u3001\u4eca\u56de\u306fJNI\u3092\u5229\u7528\u3057\u305f\u95a2\u6570\u547c\u3073\u51fa\u3057\u304cJVM\u4e0a\u3067\u3069\u306e\u3088\u3046\u306b\u5b9f\u73fe\u3055\u308c\u3066\u3044\u308b\u304b\u3092\u898b\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u8aad\u307f\u8fbc\u307f<\/h2>\n\n\n\n<p>\u307e\u305a\u3001\u547c\u3073\u51fa\u3059\u76f8\u624b\u3068\u306a\u308b\u5916\u90e8\u306e\u30e9\u30a4\u30d6\u30e9\u30ea(<code>.so<\/code>)\u3092\u8aad\u307f\u8fbc\u3080\u3068\u3053\u308d\u304b\u3089\u898b\u3066\u3044\u304d\u307e\u3059\u3002<br><code>System.loadLibrary<\/code> \u95a2\u6570\u3067\u8aad\u3080\u3088\u3046\u3067\u3059\u3002\u3053\u3053\u304b\u3089\u8aad\u3093\u3067\u884c\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><code>jdk\/src\/java.base\/share\/classes\/java\/lang\/System.java<\/code> \u306e <code>loadLibrary<\/code> \u304b\u3089<ul><li><a href=\"https:\/\/github.com\/openjdk\/jdk\/blob\/jdk-20+9\/src\/java.base\/share\/classes\/java\/lang\/System.java#L2044\">\/src\/java.base\/share\/classes\/java\/lang\/System.java#L2044<\/a><\/li><\/ul><\/li><li><code>jdk\/src\/java.base\/share\/classes\/java\/lang\/Runtime.java<\/code> \u306e <code>loadLibrary0<\/code> \u304c\u547c\u3070\u308c\u307e\u3059<ul><li>getRuntime\u304cRuntime\u3092\u8fd4\u3059\u306e\u3067 Runtime\u306e <code>loadLibrary0<\/code> \u304c\u547c\u3070\u308c\u308b<\/li><li><a href=\"https:\/\/github.com\/openjdk\/jdk\/blob\/jdk-20+9\/src\/java.base\/share\/classes\/java\/lang\/Runtime.java#L839\">\/src\/java.base\/share\/classes\/java\/lang\/Runtime.java#L839<\/a><\/li><\/ul><\/li><li><code>jdk\/src\/java.base\/share\/classes\/java\/lang\/ClassLoader.java<\/code> \u306e <code>loadLibrary<\/code> \u304c\u547c\u3070\u308c\u307e\u3059<ul><li>\u30d5\u30a1\u30a4\u30eb\u7248\u3068\u6587\u5b57\u5217\u7248\u306e2\u7a2e\u985e\u304c\u3042\u308a\u307e\u3059<\/li><\/ul><ul><li><a href=\"https:\/\/github.com\/openjdk\/jdk\/blob\/jdk-20+9\/src\/java.base\/share\/classes\/java\/lang\/ClassLoader.java#L2401\">\/src\/java.base\/share\/classes\/java\/lang\/ClassLoader.java#L2401<\/a><\/li><li><code>fromClass<\/code> \u304c null \u306a\u3089BootLoader\u304b\u3089\u53d6\u5f97\u3092\u8a66\u307f\u307e\u3059\u3002\u305d\u3046\u3067\u306a\u3044\u306a\u3089\u6587\u5b57\u5217\u306a\u3089File\u3092\u53d6\u5f97\u3057\u3066\u3001<code>NativeLibraries<\/code> \u306e <code>loadLibrary<\/code> \u3092\u547c\u3073\u307e\u3059\u3002\u65e2\u306b\u8aad\u307f\u8fbc\u307f\u6e08\u307f\u304b\u306e\u30c1\u30a7\u30c3\u30af\u3082\u3053\u3053\u3067\u5b9f\u65bd\u3057\u3066\u305d\u3046\u3067\u3059\u3002<\/li><\/ul><\/li><li><code>jdk\/src\/java.base\/share\/classes\/jdk\/internal\/loader\/NativeLibraries.java<\/code> \u306e <code>loadLibrary<\/code> \u304c\u547c\u3070\u308c\u307e\u3059<ul><li>File\u304c\u6e21\u3055\u308c\u3066\u3044\u308b\u306f\u305a\u306a\u306e\u3067\u3001\u305d\u306e\u95a2\u6570\u3092\u8aad\u307f\u307e\u3059<\/li><li><code>AccessController<\/code> \u3067\u8272\u3005\u30c1\u30a7\u30c3\u30af\u304c\u8d70\u308b\u3088\u3046\u3067\u3059\u304c\u4eca\u56de\u306f\u4e0a\u624b\u304f\u3044\u304f\u30d1\u30b9\u3060\u3051\u8aad\u307f\u307e\u3059<\/li><li><a href=\"https:\/\/github.com\/openjdk\/jdk\/blob\/jdk-20+9\/src\/java.base\/share\/classes\/jdk\/internal\/loader\/NativeLibraries.java#L118\">\/src\/java.base\/share\/classes\/jdk\/internal\/loader\/NativeLibraries.java#L118<\/a><\/li><li>\u6b21\u306b\u540c\u3058\u30af\u30e9\u30b9\u306e\u5225\u306e<code>loadLibrary<\/code>\u304c\u547c\u3070\u308c\u307e\u3059<\/li><li>\u3053\u3053\u3067\u3001\u4ed6\u306eclassLoader\u306b\u3088\u3063\u3066\u8aad\u307e\u308c\u3066\u3044\u306a\u3044\u304b\u3092\u78ba\u8a8d\u3057\u306a\u304c\u3089\u3001NativeLibraryImpl\u3092\u4f5c\u3063\u3066\u8fd4\u3059\u51e6\u7406\u306b\u306a\u3063\u3066\u3044\u307e\u3059<\/li><\/ul><ul><li><a href=\"https:\/\/github.com\/openjdk\/jdk\/blob\/jdk-20+9\/src\/java.base\/share\/classes\/jdk\/internal\/loader\/NativeLibraries.java#L151\">\/src\/java.base\/share\/classes\/jdk\/internal\/loader\/NativeLibraries.java#L151<\/a><\/li><\/ul><\/li><li><code>loadLibrary<\/code>\u306e\u4e2d\u3067\u3001<code>NativeLibraryImpl<\/code> \u304c\u4f5c\u3089\u308c\u3066\u3001\u305d\u306e\u5f8c<code> open<\/code> \u304c\u547c\u3070\u308c\u307e\u3059<ul><li><a href=\"https:\/\/github.com\/openjdk\/jdk\/blob\/jdk-20+9\/src\/java.base\/share\/classes\/jdk\/internal\/loader\/NativeLibraries.java#L326\">\/src\/java.base\/share\/classes\/jdk\/internal\/loader\/NativeLibraries.java#L326<\/a><\/li><li>\u305d\u3057\u3066\u3001<code>private static native boolean load<\/code> \u304c\u547c\u3070\u308c\u307e\u3059\u3002JNI\u306e\u4ed5\u7d44\u307f\u3092\u8aad\u3093\u3067\u305f\u3068\u601d\u3063\u305f\u3089\u3001JNI\u304c\u51fa\u3066\u304d\u3066\u3057\u307e\u3044\u307e\u3057\u305f\u3002\u547c\u3073\u51fa\u3059\u5074\u306a\u306e\u3067\u6c17\u306b\u3057\u306a\u3044\u3053\u3068\u306b\u3057\u307e\u3059\u3002BootLoader\u3067\u8aad\u3093\u3067\u3044\u308b\u306a\u3089\u3053\u3053\u307e\u3067\u306e\u30d5\u30ed\u30fc\u306e\u4e2d\u3067\u65e2\u306breturn\u3067\u304d\u3066\u3044\u308b\u306f\u305a\u3067\u3059\u3002<\/li><\/ul><\/li><li><code>jdk\/src\/java.base\/share\/native\/libjava\/NativeLibraries.c<\/code> \u306e <code>Java_jdk_internal_loader_NativeLibraries_load<\/code> \u304c\u547c\u3070\u308c\u307e\u3059<ul><li><a href=\"https:\/\/github.com\/openjdk\/jdk\/blob\/jdk-20+9\/src\/java.base\/share\/native\/libjava\/NativeLibraries.c#L113\">\/src\/java.base\/share\/native\/libjava\/NativeLibraries.c#L113<\/a><\/li><\/ul><\/li><li><code>jdk\/src\/hotspot\/share\/prims\/jvm.cpp<\/code> \u306e <code>JVM_LoadLibrary<\/code> \u304c\u547c\u3070\u308c\u307e\u3059<ul><li><a href=\"https:\/\/github.com\/openjdk\/jdk\/blob\/jdk-20+9\/src\/hotspot\/share\/prims\/jvm.cpp#L3436\">\/src\/hotspot\/share\/prims\/jvm.cpp#L3436<\/a><\/li><\/ul><\/li><li><code>jdk\/src\/jdk.jpackage\/unix\/native\/common\/UnixDll.cpp<\/code> \u306e os::loadLibrary \u304c\u547c\u3070\u308c\u3066\u3044\u307e\u3059<ul><li>linux\u306edlopen\u304c\u547c\u3070\u308c\u3066\u3044\u307e\u3059\u3002\u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u30ed\u30fc\u30c9\u304c\u5b9f\u65bd\u3055\u308c\u305d\u3046\u3067\u3059\u306d<\/li><\/ul><ul><li><a href=\"https:\/\/github.com\/openjdk\/jdk\/blob\/jdk-20+9\/src\/jdk.jpackage\/unix\/native\/common\/UnixDll.cpp#L35\">\/src\/jdk.jpackage\/unix\/native\/common\/UnixDll.cpp#L35<\/a><\/li><\/ul><\/li><\/ul>\n\n\n\n<p>JNI\u3092\u4f7f\u3063\u3066\u3044\u308b\u3068\u3053\u308d\u3092\u9664\u3044\u305f\u3089\u9806\u756a\u306b\u8aad\u3093\u3067\u3044\u304f\u3053\u3068\u3067\u3001\u5b9f\u969b\u306e\u30cd\u30a4\u30c6\u30a3\u30d6\u30b3\u30fc\u30c9\u307e\u3067\u8fbf\u308a\u3064\u304f\u3053\u3068\u304c\u51fa\u6765\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u30cd\u30a4\u30c6\u30a3\u30d6\u30b3\u30fc\u30c9\u306e\u5b9f\u884c\u306e\u6d41\u308c<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u5b9f\u969b\u306bJNI\u3092\u5b9f\u884c\u3057\u3066\u307f\u308b<\/h3>\n\n\n\n<p>\u3053\u3053\u307e\u3067\u3067\u3001DLL\u306e\u30ed\u30fc\u30c9\u3059\u308b\u307e\u3067\u306e\u6d41\u308c\u306f\u628a\u63e1\u3067\u304d\u307e\u3057\u305f\u3002\u6b21\u306f\u5b9f\u969b\u306b\u95a2\u6570\u3092\u547c\u3076\u3068\u3053\u308d\u3092\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<br>\u305b\u3063\u304b\u304f\u306a\u306e\u3067\u3001\u5b9f\u969b\u306b\u81ea\u5206\u3067JNI\u3092\u5b9f\u884c\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p>\u3053\u3046\u3044\u3046Java\u306e\u30b3\u30fc\u30c9\u3092\u66f8\u3044\u3066\u3001<code>private native void hello();<\/code> \u3068\u3044\u3046\u90e8\u5206\u304cnative\u95a2\u6570\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u306d\u3002<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-java\" data-file=\"JniJikken.java\" data-lang=\"Java\"><code>public class JniJikken {\n  private native void hello();\n\tpublic static void main(String[] args) {\n\t\tSystem.loadLibrary(&quot;JniJikken&quot;);\n\n\t\tSystem.out.println(&quot;Hello, Java World!&quot;);\n\t\tJniJikken me = new JniJikken();\n\t\tme.hello();\n\t}\n}\n<\/code><\/pre><\/div>\n\n\n\n<p>\u6b21\u306b\u3001C\u306e\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u3092\u66f8\u3044\u3066\u3044\u304d\u307e\u3059\u3002<br><code>javac -h .\/ JniJikken <\/code> \u3067\u30d8\u30c3\u30c0\u30d5\u30a1\u30a4\u30eb\u306f\u751f\u6210\u3059\u308b\u3053\u3068\u304c\u51fa\u6765\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-c\" data-file=\"JniJikken.h\" data-lang=\"C\"><code>\/* DO NOT EDIT THIS FILE - it is machine generated *\/\n#include &lt;jni.h&gt;\n\/* Header for class JniJikken *\/\n\n#ifndef _Included_JniJikken\n#define _Included_JniJikken\n#ifdef __cplusplus\nextern &quot;C&quot; {\n#endif\n\/*\n * Class:     JniJikken\n * Method:    hello\n * Signature: ()V\n *\/\nJNIEXPORT void JNICALL Java_JniJikken_hello\n  (JNIEnv *, jobject);\n\n#ifdef __cplusplus\n}\n#endif\n#endif\n<\/code><\/pre><\/div>\n\n\n\n<p>\u5b9f\u88c5\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u611f\u3058\u3067\u3059\u3002<code>Hello, C World<\/code> \u3068\u51fa\u529b\u3059\u308b\u95a2\u6570\u3092\u5b9f\u88c5\u3057\u3066\u307f\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-c\" data-file=\"JniJikken.c\" data-lang=\"C\"><code>#include &quot;stdio.h&quot;\n#include &quot;JniJikken.h&quot;\n\nJNIEXPORT\nvoid JNICALL Java_JniJikken_hello\n  (JNIEnv *env, jobject me)\n{\n  printf(&quot;Hello, C World\\n&quot;);\n}\n<\/code><\/pre><\/div>\n\n\n\n<p>\u5b9f\u884c\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u611f\u3058\u3067\u5b9f\u884c\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-bash\" data-lang=\"Bash\"><code>$ javac -h .\/ JniJikken.java  \n$gcc -fPIC -shared -I ~\/.sdkman\/candidates\/java\/current\/include -I ~\/.sdkman\/candidates\/java\/current\/include\/linux JniJikken.c -o libJniJikken.so\n$ java -Djava.library.path=.\/CHeader JniJikken\nHello, Java World!\nHello, C World<\/code><\/pre><\/div>\n\n\n\n<p>\u7121\u4e8b\u5b9f\u884c\u3067\u304d\u307e\u3057\u305f\u3002\u306a\u3093\u3068\u306a\u304fJNI\u306e\u3084\u308a\u304b\u305f\u306f\u5206\u304b\u308a\u307e\u3057\u305f\u3002<code>javac -h<\/code> \u3092\u4f7f\u3063\u3066\u30d8\u30c3\u30c0\u304c\u81ea\u52d5\u3067\u4f5c\u3089\u308c\u308b\u306e\u306f\u9a5a\u304d\u3067\u3057\u305f\u3002\u540c\u6642\u306bJVM\u3067\u3082C\u8a00\u8a9e\u5074\u306e\u30d8\u30c3\u30c0\u306f\u3055\u308c\u3066\u3044\u3066\u540d\u524d\u306a\u3069\u306b\u4e00\u5b9a\u306e\u30eb\u30fc\u30eb\u304c\u3042\u308a\u305d\u3046\u3067\u3059\u306d\u3002<br><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">JVM\u306e\u30b3\u30fc\u30c9\u4e0a\u3067JNI\u306b\u95a2\u4fc2\u304c\u3042\u308b\u90e8\u5206<\/h3>\n\n\n\n<p>JVM\u304cJava\u30b3\u30fc\u30c9\u3092\u5b9f\u969b\u306b\u5b9f\u884c\u3057\u306f\u3058\u3081\u308b\u3001<code>JavaMain<\/code> \u304b\u3089\u9806\u756a\u306b\u8aad\u3093\u3067\u3044\u304f\u306e\u306f\u9053\u306e\u308a\u304c\u9060\u3059\u304e\u308b\u306e\u3067\u3001\u4eca\u56de\u306f\u95a2\u4fc2\u304c\u3042\u308b\u7b87\u6240\u3092\u4f55\u7b87\u6240\u304b\u628a\u63e1\u3057\u3066\u304a\u304f\u306b\u7559\u3081\u308b\u3053\u3068\u306b\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\u30e9\u30a4\u30d6\u30e9\u30ea\u304b\u3089\u95a2\u6570\u3092\u898b\u3064\u3051\u3066\u3044\u308b\u7b87\u6240<\/li><li><span style=\"color: initial;\">\u30cd\u30a4\u30c6\u30a3\u30d6\u306e\u95a2\u6570\u3092\u5b9f\u884c\u3059\u308b\u305f\u3081\u306e\u30a8\u30f3\u30c8\u30ea\u95a2\u6570<\/span><\/li><\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">\u30e9\u30a4\u30d6\u30e9\u30ea\u304b\u3089\u95a2\u6570\u3092\u898b\u3064\u3051\u3066\u3044\u308b\u7b87\u6240<\/h4>\n\n\n\n<ul class=\"wp-block-list\"><li>\u4ee5\u4e0b\u306e\u95a2\u6570\u304c\u3001\u30cd\u30a4\u30c6\u30a3\u30d6\u306a\u95a2\u6570\u306e\u305f\u3081\u306e\u4e8b\u524d\u6e96\u5099\u3092\u884c\u306a\u3063\u3066\u3044\u308b\u95a2\u6570\u3067\u3059\u3002<ul><li><a href=\"https:\/\/github.com\/openjdk\/jdk\/blob\/jdk-20+9\/src\/hotspot\/share\/interpreter\/interpreterRuntime.cpp#L1443\">\/src\/hotspot\/share\/interpreter\/interpreterRuntime.cpp#L1443<\/a><\/li><\/ul><\/li><li>\u305d\u3057\u3066\u3001<code>NativeLookup::lookup<\/code> \u3067\u95a2\u6570\u3092\u63a2\u3057\u306b\u3044\u304d\u307e\u3059<ul><li><a href=\"https:\/\/github.com\/openjdk\/jdk\/blob\/jdk-20%2B9\/src\/hotspot\/share\/prims\/nativeLookup.cpp#L436\">\/src\/hotspot\/share\/prims\/nativeLookup.cpp#L436<\/a><\/li><\/ul><\/li><li>\u3064\u304e\u306b\u3001<code>NativeLookup::lookup_base<\/code> \u3092\u5b9f\u884c\u3057\u307e\u3059<ul><li><a href=\"https:\/\/github.com\/openjdk\/jdk\/blob\/jdk-20%2B9\/src\/hotspot\/share\/prims\/nativeLookup.cpp#L415\">\/src\/hotspot\/share\/prims\/nativeLookup.cpp#L415<\/a><\/li><\/ul><\/li><li><code>NativeLookup::lookup_entry<\/code> \u3092\u5b9f\u884c\u3057\u3066\u95a2\u6570\u3092\u63a2\u3057\u306f\u3058\u3081\u307e\u3059<ul><li><a href=\"https:\/\/github.com\/openjdk\/jdk\/blob\/jdk-20%2B9\/src\/hotspot\/share\/prims\/nativeLookup.cpp#L317\">\/src\/hotspot\/share\/prims\/nativeLookup.cpp#L317<\/a><\/li><li>JNI short style\u3001JNI long style\u3001JNI short style without os prefix\/suffix\u3001JNI long style without os prefix\/suffix<\/li><li>\u3053\u306e4\u7a2e\u985e\u306e\u540d\u524d\u3067\u95a2\u6570\u3092\u63a2\u3057\u306b\u884c\u304d\u307e\u3059\u3002prefix\u3068\u304bsuffix\u306fWindows\u74b0\u5883\u3060\u3068\u5909\u5316\u304c\u3042\u308b\u3088\u3046\u3067\u3059\u3002<\/li><li>JNI\u3092\u81ea\u5206\u3067\u8a66\u3057\u305f\u6642\u306b\u81ea\u52d5\u3067\u751f\u6210\u3055\u308c\u305f\u540d\u524d\u306f\u3053\u308c\u3092\u610f\u8b58\u3057\u305f\u3082\u306e\u306e\u3088\u3046\u3067\u3059\u306d\u3002<\/li><\/ul><\/li><li><code>NativeLookup::lookup_style<\/code>\u3067<code>os::dll_lookup<\/code> \u306a\u3069\u304c\u5b9f\u884c\u3055\u308c\u308b\u3088\u3046\u3067\u3059<ul><li>\u307e\u305a\u3001\u30b7\u30b9\u30c6\u30e0\u30af\u30e9\u30b9\u3060\u3068\u3001<code>lookup_special_native<\/code> \u3067\u5c02\u7528\u306e\u691c\u7d22\u95a2\u6570\u304c\u6e96\u5099\u3055\u308c\u3066\u3044\u308b\u3088\u3046\u3067\u3059<\/li><li>\u305d\u308c\u3067\u898b\u3064\u304b\u3089\u306a\u3044\u5834\u5408\u306f\u3001<code>os::dll_lookup<\/code> \u3067\u63a2\u3057\u306b\u3044\u304f\u3088\u3046\u3067\u3059<\/li><li>\u901a\u5e38\u306e\u30e6\u30fc\u30b6\u306e\u30af\u30e9\u30b9\u306e\u5834\u5408\u306f\u3001<code>ClassLoader<\/code> \u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u53d6\u5f97\u3057\u3066\u3001Java\u5074\u306e\u30b3\u30fc\u30c9\u3092\u547c\u3073\u51fa\u3057\u3066\u63a2\u3059\u3088\u3046\u3067\u3059<ul><li><code>vmClasses::ClassLoader_klass<\/code> \u306a\u3069\u306f\u30de\u30af\u30ed\u3067\u8272\u3005\u5b9f\u73fe\u3055\u308c\u3066\u3044\u307e\u3059\u304c\u3001<code>java_lang_ClassLoader<\/code> \u3092\u53d6\u5f97\u3059\u308b\u30b3\u30fc\u30c9\u306b\u5c55\u958b\u3055\u308c\u307e\u3059<\/li><li><code>vmSymbols::classloader_string_long_signature()<\/code> \u306f <code>(Ljava\/lang\/ClassLoader;Ljava\/lang\/String;)J<\/code> \u306b\u306a\u308a\u307e\u3059<\/li><li><code>vmSymbols::findNative_name()<\/code> \u306f <code>findName<\/code> \u306b\u306a\u308a\u307e\u3059<\/li><li><code>JavaCalls::call_static<\/code> \u306f\u3053\u3053\u3067\u306f\u3001ClassLoader.findName()\u3092\u5b9f\u884c\u3059\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<\/li><\/ul><\/li><li>\u3053\u3053\u307e\u3067\u3067\u898b\u3064\u304b\u3089\u306a\u3051\u308c\u3070\u3001<code>os::dll_lookup<\/code> \u3092\u4f7f\u3063\u3066\u63a2\u3057\u306b\u3044\u304d\u307e\u3059<\/li><\/ul><\/li><li><code>os::dll_lookup<\/code> \u306e\u5b9f\u88c5\u306f <code>dlsym<\/code> \u3092\u547c\u3076\u3060\u3051\u306b\u306a\u3063\u3066\u3044\u307e\u3059<ul><li><a href=\"https:\/\/github.com\/openjdk\/jdk\/blob\/jdk-20%2B9\/src\/hotspot\/os\/posix\/os_posix.cpp#L714\">\/src\/hotspot\/os\/posix\/os_posix.cpp#L714<\/a><\/li><\/ul><\/li><li>\u3053\u306e\u7d50\u679c\u3092 <code>methodHandle<\/code> \u306e <code>set_native_function<\/code> \u3092\u4f7f\u3063\u3066 \u3053\u306eMethod\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u5bfe\u3059\u308b\u30a8\u30f3\u30c8\u30ea\u30dd\u30a4\u30f3\u30c8\u3068\u3057\u3066\u6307\u5b9a\u3057\u307e\u3059<ul><li><a href=\"https:\/\/github.com\/openjdk\/jdk\/blob\/jdk-20%2B9\/src\/hotspot\/share\/prims\/nativeLookup.cpp#L439\">\/src\/hotspot\/share\/prims\/nativeLookup.cpp#L439<\/a><\/li><\/ul><\/li><li>\u3053\u3053\u307e\u3067\u3067\u3001\u30cd\u30a4\u30c6\u30a3\u30d6\u95a2\u6570\u306e\u30dd\u30a4\u30f3\u30bf\u304c\u53d6\u5f97\u3067\u304d\u3066\u3044\u307e\u3059\u3001\u6700\u5f8c\u306b <code>SignatureHandler<\/code> \u3068\u3044\u3046ABI\u306a\u3069\u3092\u826f\u3044\u611f\u3058\u306b\u8abf\u6574\u3057\u3066\u304f\u308c\u308b\u30cf\u30f3\u30c9\u30e9\u30fc\u306e\u767b\u9332\u3092\u5b9f\u65bd\u3059\u308b\u5fc5\u8981\u304c\u3042\u3063\u3066\u4ee5\u4e0b\u306e\u95a2\u6570\u3067\u5b9f\u65bd\u3057\u307e\u3059<ul><li><a href=\"https:\/\/github.com\/openjdk\/jdk\/blob\/jdk-20%2B9\/src\/hotspot\/share\/interpreter\/interpreterRuntime.cpp#L1451\">\/src\/hotspot\/share\/interpreter\/interpreterRuntime.cpp#L1451<\/a><\/li><li><a href=\"https:\/\/github.com\/openjdk\/jdk\/blob\/jdk-20%2B9\/src\/hotspot\/share\/interpreter\/interpreterRuntime.cpp#L1305\">\/src\/hotspot\/share\/interpreter\/interpreterRuntime.cpp#L1305<\/a><\/li><li>\u306a\u304aSignatureHandler\u306f\u4f8b\u3048\u3070\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u3082\u306e\u3067\u3001\u307b\u3068\u3093\u3069\u5168\u90e8\u304c\u30a2\u30bb\u30f3\u30d6\u30e9\u3067\u66f8\u304b\u308c\u3066\u3044\u307e\u3059<ul><li><a href=\"https:\/\/github.com\/openjdk\/jdk\/blob\/jdk-20%2B9\/src\/hotspot\/cpu\/x86\/templateInterpreterGenerator_x86_64.cpp#L117\">\/src\/hotspot\/cpu\/x86\/templateInterpreterGenerator_x86_64.cpp#L117<\/a><\/li><\/ul><\/li><\/ul><\/li><\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">\u30cd\u30a4\u30c6\u30a3\u30d6\u306e\u95a2\u6570\u3092\u5b9f\u884c\u3059\u308b\u305f\u3081\u306e\u30a8\u30f3\u30c8\u30ea\u95a2\u6570<\/h4>\n\n\n\n<p>\u3053\u3053\u307e\u3067\u3067\u3001Java\u5074\u306e <code>Method<\/code> \u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u95a2\u6570\u30dd\u30a4\u30f3\u30bf\u306a\u3069\u306e\u8a2d\u5b9a\u306f\u5b8c\u4e86\u3057\u3066\u3044\u307e\u3059\u3002<br>\u3053\u3053\u3067\u306f\u3001\u305d\u308c\u3092\u5b9f\u969b\u306b\u547c\u3073\u51fa\u3059\u305f\u3081\u306e\u6e96\u5099\u306e\u30b3\u30fc\u30c9\u3092\u898b\u3066\u3044\u3053\u3046\u3068\u601d\u3044\u307e\u3059\u3002<br><br>\u4ee5\u4e0b\u306e\u30b3\u30fc\u30c9\u304c\u30cd\u30a4\u30c6\u30a3\u30d6\u306e\u95a2\u6570\u3092\u5b9f\u884c\u3059\u308b\u969b\u306b\u547c\u3073\u3060\u3055\u308c\u308b\u95a2\u6570\u3068\u306a\u308a\u307e\u3059\u3002<br><a href=\"https:\/\/github.com\/openjdk\/jdk\/blob\/jdk-20+9\/src\/hotspot\/cpu\/x86\/templateInterpreterGenerator_x86.cpp#L791\">\/src\/hotspot\/cpu\/x86\/templateInterpreterGenerator_x86.cpp#L791<\/a><br>\u5b8c\u5168\u306b\u30a2\u30bb\u30f3\u30d6\u30e9\u3067\u3059\u306d\u3002\u6b63\u76f4\u8aad\u3080\u306e\u306f\u8f9b\u3044\u306e\u3067\u7cbe\u8aad\u306f\u3057\u307e\u305b\u3093\u3002<br><br>\u3056\u3063\u3068\u898b\u3066\u307f\u308b\u3068\u3001signature handler\u304c\u547c\u3070\u308c\u3066\u3044\u305f\u308a<br><a href=\"https:\/\/github.com\/openjdk\/jdk\/blob\/jdk-20+9\/src\/hotspot\/cpu\/x86\/templateInterpreterGenerator_x86.cpp#L940\">\/src\/hotspot\/cpu\/x86\/templateInterpreterGenerator_x86.cpp#L940<\/a><br><code>call<\/code> \u304c\u547c\u3070\u308c\u3066\u3044\u308b\u306e\u3067\u3001\u3053\u3053\u3067\u5b9f\u969b\u306b\u95a2\u6570\u304c\u547c\u3073\u3060\u3055\u308c\u308b\u306e\u3067\u3057\u3087\u3046<br><a href=\"https:\/\/github.com\/openjdk\/jdk\/blob\/jdk-20+9\/src\/hotspot\/cpu\/x86\/templateInterpreterGenerator_x86.cpp#L966\">\/src\/hotspot\/cpu\/x86\/templateInterpreterGenerator_x86.cpp#L966<\/a><br>\u3053\u306e\u8fba\u308a\u3067\u8fd4\u308a\u5024\u3092\u51e6\u7406\u3059\u308b\u305f\u3081\u306e\u3001return handler\u306b\u5bfe\u3059\u308b\u51e6\u7406\u3082\u3042\u308a\u305d\u3046\u3067\u3059<br><a href=\"https:\/\/github.com\/openjdk\/jdk\/blob\/jdk-20+9\/src\/hotspot\/cpu\/x86\/templateInterpreterGenerator_x86.cpp#L970\">\/src\/hotspot\/cpu\/x86\/templateInterpreterGenerator_x86.cpp#L970<\/a><br><br>\u306a\u304a\u3001\u4e0a\u8a18\u306e\u95a2\u6570\u3068\u5b9f\u969b\u306e\u95a2\u6570\u306f\u3001<code>InstanceKlass::link_class_impl<\/code> -&gt; <code>InstanceKlass::link_methods<\/code> -&gt; <code>Method::link_method<\/code> \u3068\u3044\u3046\u6d41\u308c\u3067\u767b\u9332\u3055\u308c\u308b\u3088\u3046\u3067\u3059\u3002<br> <code>InstanceKlass::link_class_impl<\/code> \u306f\u3053\u3053\u304b\u3089\u8fbf\u3063\u3066\u3044\u3051\u307e\u3059\u3002<br><a href=\"https:\/\/github.com\/openjdk\/jdk\/blob\/jdk-20%2B9\/src\/hotspot\/share\/oops\/instanceKlass.cpp#L787\">\/src\/hotspot\/share\/oops\/instanceKlass.cpp#L787<\/a><br><br>\u307e\u305f\u3001<code>Interpreter::entry_for_method<\/code> \u3092\u7d4c\u7531\u3057\u3066\u3001<code>Method::link_method<\/code> \u306e\u4e2d\u3067\u4ee3\u5165\u304c\u884c\u306a\u308f\u308c\u3066\u3044\u307e\u3059\u3002<br>\u3053\u308c\u306f\u3001Interpreter\u3092\u4f5c\u6210\u3059\u308b\u969b\u306b\u69cb\u7bc9\u3055\u308c\u307e\u3059\u3002<br><br><code>TemplateInterpreterGenerator::generate_all<\/code> \u3068\u3044\u3046\u95a2\u6570\u306e<br><a href=\"https:\/\/github.com\/openjdk\/jdk\/blob\/jdk-20+9\/src\/hotspot\/share\/interpreter\/templateInterpreterGenerator.cpp#L56\">\/src\/hotspot\/share\/interpreter\/templateInterpreterGenerator.cpp#L56<\/a><br>\u3053\u306e\u3042\u305f\u308a\u3067\u767b\u9332\u3055\u308c\u307e\u3059<br><a href=\"https:\/\/github.com\/openjdk\/jdk\/blob\/jdk-20+9\/src\/hotspot\/share\/interpreter\/templateInterpreterGenerator.cpp#L211\">\/src\/hotspot\/share\/interpreter\/templateInterpreterGenerator.cpp#L211<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u307e\u3068\u3081<\/h2>\n\n\n\n<p>\u306a\u3093\u3068\u306a\u304f\u3001JNI\u306e\u4ed5\u7d44\u307f\u304c\u5206\u304b\u3063\u305f\u6c17\u304c\u3057\u307e\u3057\u305f\u3002<br>\u3053\u3053\u307e\u3067\u8aad\u307f\u3059\u3059\u3081\u3066\u304f\u308b\u3068\u3001\u6700\u521d\u306e\u8a18\u4e8b\u306b\u66f8\u3044\u3066\u3044\u305f\u5206\u304b\u3063\u3066\u306a\u3044\u3046\u3061\u306e\u3044\u304f\u3064\u304b\u306f\u5206\u304b\u3063\u305f\u6c17\u304c\u3057\u307e\u3059\u3002<br><\/p>\n\n\n\n<ul class=\"wp-block-list\" id=\"block-272ee554-cdd2-4bb0-ac37-1fd17ff30add\"><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>\u3053\u306e\u3046\u3061\u4ee5\u4e0b\u306e2\u3064\u306f\u307e\u3041\u3042\u308b\u7a0b\u5ea6\u7406\u89e3\u3067\u304d\u305f\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\"><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>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>\u6b8b\u308a\u306e2\u3064<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>classpath\u306e\u53d6\u308a\u6271\u3044<\/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><\/ul>\n\n\n\n<p>\u3053\u306e\u3042\u305f\u308a\u306f\u3001\u3053\u308c\u304b\u3089\u3068\u3044\u3046\u611f\u3058\u3067\u3059\u306d\u3002classpath\u306e\u53d6\u308a\u6271\u3044\u3092\u7406\u89e3\u3059\u308b\u306b\u306f\u3001ClassLoader\u306e\u52d5\u4f5c\u306a\u3069\u3092\u773a\u3081\u3066\u3044\u304f\u5fc5\u8981\u304c\u3042\u308a\u305d\u3046\u3067\u3059\u3002<br>\u307e\u305f\u3001JVM\u304c\u30d0\u30a4\u30c8\u30b3\u30fc\u30c9\u3092\u89e3\u91c8\u3059\u308b\u4ed5\u7d44\u307f\u306e\u4e00\u7aef\u306f\u4eca\u56de\u306eJNI\u306e\u4e2d\u3067\u51fa\u3066\u304d\u305fTemplateInterpreter\u306a\u3069\u304c\u4e2d\u5fc3\u7684\u306a\u5b58\u5728\u306e\u3088\u3046\u3067\u3057\u305f\u3002\u304c\u3001\u305d\u306e\u8a73\u7d30\u307e\u3067\u306f\u8ffd\u3048\u3066\u3044\u307e\u305b\u3093\u3002\u4eca\u5f8c\u8aad\u307f\u3059\u3059\u3081\u3066\u3044\u3051\u3070\u3082\u3046\u5c11\u3057\u306f\u7406\u89e3\u3067\u304d\u3066\u304f\u308b\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u53c2\u8003\u306b\u306a\u3063\u305f\u30b5\u30a4\u30c8<\/h2>\n\n\n\n<p>\u4ee5\u4e0b\u306e\u30b5\u30a4\u30c8\u304c\u3068\u3066\u3082\u53c2\u8003\u306b\u306a\u308a\u307e\u3057\u305f\u3002<br><a href=\"http:\/\/hsmemo.github.io\/articles\/noNisy_uNv.html\" data-type=\"URL\" data-id=\"http:\/\/hsmemo.github.io\/articles\/noNisy_uNv.html\">http:\/\/hsmemo.github.io\/articles\/noNisy_uNv.html<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>JNI\u306e\u4ed5\u7d44\u307f\u306b\u3064\u3044\u3066 \u524d\u56de\u3067JVM\u306e\u30d7\u30ed\u30bb\u30b9\u60c5\u5831\u304c\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u4e0a\u306b\u683c\u7d0d\u3055\u308c\u3066\u3044\u3066\u3001\u305d\u308c\u3092\u89e3\u6790\u3059\u308b\u3053\u3068\u3067Jps\u306f\u8272\u3005\u60c5\u5831\u3092\u51fa\u529b\u3057\u3066\u3044\u308b\u3053\u3068\u304c\u5206\u304b\u308a\u307e\u3057\u305f\u3002\u3053\u308c\u3067JVM\u306e\u30d7\u30ed\u30bb\u30b9\u60c5\u5831\u306f\u3069\u3053\u3092\u898b\u308c\u3070\u826f\u3044\u306e\u304b\u3068\u3044\u3046\u306e\u304c\u5206\u304b\u2026 <span class=\"read-more\"><a href=\"https:\/\/light-of-moe.ddo.jp\/~sakura\/diary\/?p=773\">\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-773","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-ct","_links":{"self":[{"href":"https:\/\/light-of-moe.ddo.jp\/~sakura\/diary\/index.php?rest_route=\/wp\/v2\/posts\/773","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=773"}],"version-history":[{"count":136,"href":"https:\/\/light-of-moe.ddo.jp\/~sakura\/diary\/index.php?rest_route=\/wp\/v2\/posts\/773\/revisions"}],"predecessor-version":[{"id":929,"href":"https:\/\/light-of-moe.ddo.jp\/~sakura\/diary\/index.php?rest_route=\/wp\/v2\/posts\/773\/revisions\/929"}],"wp:attachment":[{"href":"https:\/\/light-of-moe.ddo.jp\/~sakura\/diary\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=773"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/light-of-moe.ddo.jp\/~sakura\/diary\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=773"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/light-of-moe.ddo.jp\/~sakura\/diary\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=773"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}