import java.lang.instrument.ClassDefinition; import java.lang.instrument.Instrumentation; public class MyAgent { //agentArgs就是VirtualMachine.loadAgent()的第二个参数 public static void agentmain(String agentArgs, Instrumentation inst) { try { System.out.println("args: " + agentArgs); System.out....
$ javac src/main/java/com/zooncool/example/theory/jvm/HelloWorld.java $ java -cp src/main/java/ com.zooncool.example.theory.jvm.HelloWorld 错误: 在类 com.zooncool.example.theory.jvm.HelloWorld 中找不到 main 方法, 请将 main 方法定义为: public static void main(String[] args) 否则JavaFX ...
The Java virtual machine manages application memory and provides a portable execution environment for Java-based applications. Developers reap the rewards in performance, stability, and predictable runtimes.
publicvoidredefineClasses(ClassDefinition[]definitions)throws ClassNotFoundException{if(!isRedefineClassesSupported()){thrownewUnsupportedOperationException("redefineClasses is not supported in this environment");}if(definitions==null){thrownewNullPointerException("null passed as 'definitions' in redefineClasses")...
JVMTM Tool Interface:JVM源码分析之javaagent原理完全解读 概述 本文重点讲述javaagent的具体实现,因为它面向的是我们Java程序员,而且agent都是用Java编写的,不需要太多的C/C++编程基础,不过这篇文章里也会讲到JVMTIAgent(C实现的),因为javaagent的运行还是依赖于一个特殊的JVMTIAgent。
User interface toolkitsincluding Abstract Window Toolkit (AWT), Swing, Java 2D, Accessibility, Image I/O, Print Service, Sound, drag and drop (DnD) and input methods. Integration librariesincluding Interface Definition Language (IDL), Java Database Connectivity (JDBC), Java Naming and Directory -...
(MalformedURLException ignore) {}}}if (result == null) {// Try to find 'cls' definition as a resource; this is not// document.d to be legal, but Sun's implementations seem to //allow this:final ClassLoader clsLoader = cls.getClassLoader();result = clsLoader != null ?clsLoader...
import java.io.File; import java.io.FileInputStream; import java.io.IOException; import java.lang.reflect.Method; /** * Created by nijiaben on 2017/3/7. */ public class B { public static void main(String args[]) throws Throwable { ...
对于ApplicationContext容器,当容器启动结束后,通过获取BeanDefinition对象中的信息,实例化所有的bean。(2)设置对象属性(依赖注入):实例化后的对象被封装在BeanWrapper对象中,紧接着,Spring根据BeanDefinition中的信息 以及 通过BeanWrapper提供的设置属性的接口完成依赖注入。
>...classes)throwsUnmodifiableClassException;booleanisRedefineClassesSupported();//重新定义某个类voidredefineClasses(ClassDefinition...definitions)throwsClassNotFoundException,UnmodifiableClassException;booleanisModifiableClass(Class<?>theClass);@SuppressWarnings("rawtypes")Class[]getAllLoadedClasses();@Suppress...