{"id":5737,"date":"2024-03-14T03:17:43","date_gmt":"2024-03-14T03:17:43","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/how-to-obtain-the-names-of-classes-that-have-been-loaded-by-the-jvm\/"},"modified":"2025-08-01T19:02:36","modified_gmt":"2025-08-01T19:02:36","slug":"how-to-obtain-the-names-of-classes-that-have-been-loaded-by-the-jvm","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/how-to-obtain-the-names-of-classes-that-have-been-loaded-by-the-jvm\/","title":{"rendered":"Get JVM Loaded Classes with JMX"},"content":{"rendered":"

You can obtain the names of the classes loaded by the JVM by using the Java Management Extensions (JMX) API. The specific steps are as follows:<\/p>\n

    \n
  1. Firstly, you need to create a JMX connection to the JVM. This can be achieved using the following code:<\/li>\n<\/ol>\n
    import<\/span> javax.management.MBeanServerConnection;\r\nimport<\/span> javax.management.remote.JMXConnector;\r\nimport<\/span> javax.management.remote.JMXConnectorFactory;\r\nimport<\/span> javax.management.remote.JMXServiceURL;\r\n\r\npublic<\/span> class<\/span> JMXClient<\/span> {\r\n    public<\/span> static<\/span> void<\/span> main<\/span>(String[] args)<\/span> throws<\/span> Exception {\r\n        JMXServiceURL<\/span> url<\/span> =<\/span> new<\/span> JMXServiceURL<\/span>(\"service:jmx:rmi:\/\/\/jndi\/rmi:\/\/localhost:1099\/jmxrmi\"<\/span>);\r\n        JMXConnector<\/span> jmxc<\/span> =<\/span> JMXConnectorFactory.connect(url, null<\/span>);\r\n        MBeanServerConnection<\/span> mbsc<\/span> =<\/span> jmxc.getMBeanServerConnection();\r\n        \r\n        \/\/ \u8fde\u63a5\u6210\u529f\u540e\u53ef\u4ee5\u8fdb\u884c\u540e\u7eed\u64cd\u4f5c<\/span>\r\n    }\r\n}\r\n<\/code><\/pre>\n
      \n
    1. Then you can use the MBeanServerConnection object to obtain the names of the loaded classes. The specific code is as follows:<\/li>\n<\/ol>\n
      import<\/span> javax.management.ObjectName;\r\n\r\npublic<\/span> class<\/span> JMXClient<\/span> {\r\n    public<\/span> static<\/span> void<\/span> main<\/span>(String[] args)<\/span> throws<\/span> Exception {\r\n        \/\/ \u7701\u7565\u521b\u5efaJMX\u8fde\u63a5\u7684\u4ee3\u7801<\/span>\r\n        \r\n        ObjectName<\/span> classLoadingMBean<\/span> =<\/span> new<\/span> ObjectName<\/span>(\"java.lang:type=ClassLoading\"<\/span>);\r\n        int<\/span> loadedClassCount<\/span> =<\/span> (int<\/span>) mbsc.getAttribute(classLoadingMBean, \"LoadedClassCount\"<\/span>);\r\n\r\n        System.out.println(\"Loaded class count: \"<\/span> + loadedClassCount);\r\n        \r\n        String[] loadedClassNames = (String[]) mbsc.getAttribute(classLoadingMBean, \"LoadedClassNames\"<\/span>);\r\n        for<\/span>(String className : loadedClassNames) {\r\n            System.out.println(className);\r\n        }\r\n        \r\n        jmxc.close();\r\n    }\r\n}\r\n<\/code><\/pre>\n
      By using the above code, you can retrieve the names of classes loaded in the JVM and print them to the console. It is important to note that you need to enable JMX functionality when starting the JVM, and you can refer to the JVM documentation for specific instructions.<\/p>\n","protected":false},"excerpt":{"rendered":"
      You can obtain the names of the classes loaded by the JVM by using the Java Management Extensions (JMX) API. The specific steps are as follows: Firstly, you need to create a JMX connection to the JVM. This can be achieved using the following code: import javax.management.MBeanServerConnection; import javax.management.remote.JMXConnector; import javax.management.remote.JMXConnectorFactory; import javax.management.remote.JMXServiceURL; public class […]<\/p>\n","protected":false},"author":12,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","footnotes":""},"categories":[1],"tags":[6512,87,279,278,2054],"class_list":["post-5737","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-class-loading","tag-java","tag-java-management-extensions","tag-jmx","tag-jvm"],"yoast_head":"\nGet JVM Loaded Classes with JMX - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"Learn how to retrieve JVM loaded class names using JMX API. Step-by-step Java guide with code examples.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/blog\/how-to-obtain-the-names-of-classes-that-have-been-loaded-by-the-jvm\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Get JVM Loaded Classes with JMX\" \/>\n<meta property=\"og:description\" content=\"Learn how to retrieve JVM loaded class names using JMX API. 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