{"id":323558,"date":"2021-02-06T05:27:06","date_gmt":"2021-02-05T21:27:06","guid":{"rendered":"http:\/\/4563.org\/?p=323558"},"modified":"2021-02-06T05:27:06","modified_gmt":"2021-02-05T21:27:06","slug":"java-asm-%e4%bf%ae%e6%94%b9-jdk-%e6%ba%90%e7%a0%81%e4%b8%ad%e7%9a%84-threadpoolexecutor-execute-%e4%b8%8d%e8%83%bd%e5%bc%95%e5%85%a5-%e4%b8%8d%e6%98%af-jdk-%e7%9a%84%e5%8c%85%e4%b8%8b%e7%9a%84","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=323558","title":{"rendered":"Java Asm \u4fee\u6539 jdk \u6e90\u7801\u4e2d\u7684 ThreadPoolExecutor execute \u4e0d\u80fd\u5f15\u5165 \u4e0d\u662f jdk \u7684\u5305\u4e0b\u7684\u7c7b\u5417\uff1f"},"content":{"rendered":"
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Java Asm \u4fee\u6539 jdk \u6e90\u7801\u4e2d\u7684 ThreadPoolExecutor execute \u4e0d\u80fd\u5f15\u5165 \u4e0d\u662f jdk \u7684\u5305\u4e0b\u7684\u7c7b\u5417\uff1f <\/h1>\n

<\/p>\n

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\u8cc7\u6df1\u5927\u4f6c : gengzi <\/span> <\/i> 6<\/span> <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n
<\/p>\n

\u63d0\u793a NoClassDefFoundError \u3002 \u8fd8\u662f\u8bf4\u9700\u8981\u5176\u4ed6\u65b9\u5f0f<\/p>\n<\/p><\/div>\n

\u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (9<\/span>) <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n
    \n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : wsxyeah <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u8fd9\u4e9b\u4e1c\u897f\u662f\u7528\u6237\u673a\u5668\u4e0a\u7684\uff0c\u9664\u975e\u4f60\u6253\u5305\u4e00\u4e2a jre \u8fdb\u53bb <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : gengzi <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @wsxyeah \u6211\u5728\u542f\u7528\u524d\u4f7f\u7528 Agent\uff0c\u4fee\u6539 jdk ThreadPoolExecutor execute \u7684\u65b9\u6cd5\uff0c\u5f15\u5165\u7684 jar \u5e94\u8be5\u4f1a\u5728\u8fd0\u884c\u65f6\u52a0\u8f7d\u5427\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : ffutop <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    ThreadPoolExecutor \u662f\u88ab Bootstrap ClassLoader \u52a0\u8f7d\u7684\u3002\u5b83\u7684\u52a0\u8f7d\u8def\u5f84\u4e0d\u5305\u62ec\u4f60\u81ea\u5b9a\u4e49\u7684 MDCInheritableThreadLocal \u3002<\/p>\n

    \u53ef\u4ee5\u7528 -Xbootclasspath \u6307\u5b9a Bootstrap \u52a0\u8f7d\u7279\u5b9a Jar \u5305
    \u6216\u8005\u5728 MANIFEST.MF \u7528 Boot-Class-Path \u58f0\u660e Jar \u5305\u8def\u5f84 <\/div>\n<\/p><\/div>\n<\/li>\n

  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : kingfalse <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u8bd5\u8bd5 javassist <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : fantastM <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u5728\u542f\u52a8\u53c2\u6570\u91cc\u7528 -javaagent \u7684\u8bdd\uff0c\u786e\u5b9e\u662f\u5982 #3 \u8bf4\u7684\u7c7b\u52a0\u8f7d\u95ee\u9898\u3002\u53ef\u4ee5\u7528 arthas \u7684 sc \u3001classloader \u4e4b\u7c7b\u7684\u547d\u4ee4\u6765\u67e5\u770b\u7c7b\u7684\u52a0\u8f7d\u60c5\u51b5 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : gengzi <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @ffutop @fantastM ok,\u611f\u8c22\u89e3\u7b54\u3002\u6211\u53bb\u7785\u7785 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : gengzi <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @ffutop @fantastM \u9ebb\u70e6\u518d\u54a8\u8be2\u4e0b\uff0c
    “`
    -javaagent:D:\/ideaworkspace\/baselog.jar -Xbootclasspath\/a:D:\/ideaworkspace\/baselog.jar
    “`
    \u5f53\u8fd9\u4e2a\u952e\u5165 idea \u4e2d\uff0c\u8fd0\u884c springboot \u5de5\u7a0b\uff0c\u63d0\u793a NoClassDefFoundError \u5173\u4e8e\u9879\u76ee\u4e2d\u7684\u5f15\u5165\u7684 jar\uff0c\u90a3\u8fd9\u4e9b jar \u6211\u9700\u8981\u600e\u4e48\u5f15\u5165\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : fantastM <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u7b80\u5355\u56de\u7b54\uff1a\u53ef\u4ee5\u5728 agent \u4e2d\u81ea\u5b9a\u4e49\u7c7b\u52a0\u8f7d\u5668\uff0c\u907f\u514d\u9075\u5faa Java \u7c7b\u52a0\u8f7d\u5668\u4e2d\u7684\u53cc\u4eb2\u59d4\u6d3e\u6a21\u578b\u3002<\/p>\n

    \u8be6\u7ec6\u56de\u7b54\uff1a
    JVM \u52a0\u8f7d\u7c7b\u662f\u6309\u7167\u53cc\u4eb2\u59d4\u6d3e\u6a21\u578b\u6765\u6267\u884c\u7684\uff0c\u6bcf\u4e2a\u7c7b\u90fd\u4f1a\u4f18\u5148\u59d4\u6258\u7ed9\u7236\u7c7b\u52a0\u8f7d\u5668\u6765\u52a0\u8f7d\uff0c\u5f53\u7236\u7c7b\u52a0\u8f7d\u5668\u65e0\u6cd5\u52a0\u8f7d\u7c7b\u7684\u65f6\u5019\u518d\u7531\u5b50\u7c7b\u52a0\u8f7d\u5668\u6765\u52a0\u8f7d\uff0c\u56e0\u6b64\u5728 JVM \u4e2d\u52a0\u8f7d\u7684\u7c7b\u4f1a\u6709\u4e00\u79cd\u5c42\u7ea7\u5173\u7cfb\u3002<\/p>\n

    \u5728\u4f60\u7684\u4f8b\u5b50\u4e2d `ThreadPoolExecutor` \u4f1a\u7531 BootStrap ClassLoader \u52a0\u8f7d\uff0c\u53c2\u6570 -javaagent \u6307\u5b9a\u7684 baselog.jar \u5305\u9ed8\u8ba4\u4f1a\u7531 System ClassLoader \u52a0\u8f7d\uff0c\u6240\u4ee5\u4f60\u4e00\u5f00\u59cb\u63cf\u8ff0\u7684\u95ee\u9898\u539f\u56e0\u662f\uff1a`ThreadPoolExecutor` \u7c7b\u5728\u88ab BootStrap ClassLoader \u52a0\u8f7d\u4e4b\u540e\u94fe\u63a5\u7684\u65f6\u5019\uff0c\u65e0\u6cd5\u627e\u5230\u9700\u8981\u88ab System ClassLoader \u52a0\u8f7d\u7684 baselog.jar \u5305\u91cc\u7684 `MDCInheritableThreadLocal`\u3002\uff08\u6ce8\u610f\u8fd9\u4e2a\u95ee\u9898\u662f\u53d1\u751f\u5728\u94fe\u63a5\u9636\u6bb5\uff0c\u8fd9\u4e5f\u662f JVM \u4e3a\u4ec0\u4e48\u629b\u4e86 `NoClassDefFoundError` \u800c\u4e0d\u662f `ClassNotFoundException` \u7684\u539f\u56e0\uff09<\/p>\n

    \u7136\u540e\u4f60\u5c06 baselog.jar \u5305\u6307\u5b9a\u4e3a\u7531 BootStrap ClassLoader \u52a0\u8f7d\uff0c\u8fd9\u6837\u7684\u8bdd\uff0c`ThreadPoolExecutor` \u7c7b\u5728\u88ab BootStrap ClassLoader \u52a0\u8f7d\u3001\u94fe\u63a5\u3001\u521d\u59cb\u5316\u7684\u65f6\u5019\uff0c\u5c31\u53ef\u4ee5\u627e\u5230\u540c\u6837\u662f\u88ab BootStrap ClassLoader \u52a0\u8f7d\u7684 `MDCInheritableThreadLocal` \u4e86\u3002<\/p>\n

    \u4f60\u5728 #7 \u91cc\u8bf4\u7684\u4e8b\u60c5\uff0c\u6211\u7406\u89e3\u4e3a\u662f\u4f60\u5728 baselog.jar \u5305\u91cc\u7528\u5230\u4e86\u300c\u9879\u76ee\u4e2d\u7684\u5f15\u5165\u7684 jar \u300d\uff08\u53ef\u80fd\u662f Spring \u4e4b\u7c7b\u7684\u5427\uff09\uff0c\u8fd9\u90e8\u5206\u5305\u4e0d\u7531\u662f BootStrap ClassLoader \u52a0\u8f7d\u7684\uff0c\u53ef\u80fd\u662f System ClassLoader\uff0c\u4e5f\u53ef\u80fd\u662f Tomcat \u7684 Webapp ClassLoader\uff0c\u6240\u4ee5\u81ea\u7136\u4e5f\u4f1a\u6709 `ClassNotFoundException` \u7684\u95ee\u9898\u3002\u89e3\u51b3\u65b9\u6848\u7684\u8bdd\uff0c\u6211\u4e0d\u5efa\u8bae\u628a\u8fd9\u7c7b\u5305\u4e5f\u6307\u5b9a\u4e3a\u7531 BootStrap ClassLoader \u6765\u52a0\u8f7d\uff0c\u66f4\u597d\u7684\u89e3\u51b3\u65b9\u6848\u662f\u81ea\u5b9a\u4e49\u7c7b\u52a0\u8f7d\u673a\u5236\uff0c\u7834\u574f\u4e00\u4e0b Java \u7c7b\u52a0\u8f7d\u5668\u4e2d\u7684\u53cc\u4eb2\u59d4\u6d3e\u6a21\u578b\u3002<\/p>\n

    \u5177\u4f53\u5b9e\u73b0\u7684\u8bdd\uff0c\u53ef\u4ee5\u501f\u9274\u4e00\u4e9b\u5206\u5e03\u5f0f\u8ffd\u8e2a APM \u7cfb\u7edf\uff0c\u5b83\u4eec\u5728\u91c7\u96c6\u5e94\u7528\u7684\u6570\u636e\u65f6\u5019\uff0c\u4f7f\u7528\u7684\u65e0\u4fb5\u5165\u5f0f\u65b9\u6848\u4e5f\u662f javaagent\uff0c\u4e5f\u4f1a\u5bf9\u9879\u76ee\u4e2d\u7684\u4e00\u4e9b\u4ee3\u7801\u505a\u6539\u9020\u3002<\/p>\n

    \u4e00\u4e9b\u53ef\u4f9b\u67e5\u9605\u7684\u8d44\u6599\uff1a
    https:\/\/docs.oracle.com\/javase\/8\/docs\/api\/java\/lang\/instrument\/package-summary.html
    https:\/\/docs.oracle.com\/javase\/specs\/jvms\/se8\/html\/jvms-5.html <\/div>\n<\/p><\/div>\n<\/li>\n

  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : gengzi <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @fantastM \u542c\u541b\u4e00\u5e2d\u8bdd\u80dc\u8bfb\u5341\u5e74\u4e66\u3002\u6628\u5929\u5728\u67e5\u9605\u8d44\u6599\u65f6\uff0c\u4e5f\u8003\u8651\u4f7f\u7528\u81ea\u5b9a\u4e49\u7684\u7c7b\u52a0\u8f7d\u5668\u6765\u5c1d\u8bd5\uff0c\u6211\u518d\u53bb\u770b\u770b\u8fd9\u5757\u5185\u5bb9\u3002\u975e\u5e38\u611f\u8c22\u8fd9\u4e48\u8be6\u7ec6\u7684\u89e3\u7b54\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n","protected":false},"excerpt":{"rendered":"

    Java Asm \u4fee\u6539 jdk \u6e90…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[],"tags":[],"_links":{"self":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/323558"}],"collection":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=323558"}],"version-history":[{"count":0,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/323558\/revisions"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=323558"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=323558"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=323558"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}