} 在findClass() 方法内 class loader要取得到得字节码(就是编译后*.class文件里得内容),也不一定就是.class文件, 这些字节码可以来自本地,也可以是系统,网络(借着这个你可以理解一下Cobra,RMI),也可以是用BCEL(Apache一个基于字节码得一个引擎库)...等等。 一但字节码找到了。那时候就开始执行defineClass(...
classLoadTest {//The static clause is executed upon class loading:static{ System.out.println("Loading LoadTest"); }staticvoidstaticMember() {}staticinti = 0; }publicclassclassLoading {publicstaticvoidmain(String args[]) { System.out.println("Calling static member");//new LoadTest();//1/...
>loadClass(String name,boolean resolve)throws ClassNotFoundException{synchronized(getClassLoadingLock(name)){// First, check if the class has already been loadedClass<?>c=findLoadedClass(name);if(c==null){long t0=System.nanoTime();try{if(parent!=null){c=parent.loadClass(name,false);}else...
扩展类加载器(Extention Classloader)负责加载JVM扩展类，比如swing系列、内置的js引擎、xml解析器等，这些...
staticbooleanisRegistered(Class<? extends ClassLoader> c){synchronized(loaderTypes) {returnloaderTypes.contains(c); } } 到这里,为什么loadClass中调用getClassLoadingLock(name)就一目了然了。 protectedObjectgetClassLoadingLock(String className){Objectlock=this;if(parallelLockMap !=null) {ObjectnewLock=...
then the JAR files can be enumerated explicitly in the class path. Expansion of wild cards is done early, before the invocation of a program’s main method, rather than late, during the class-loading process. Each element of the input class path that contains a wildcard is replaced by the...
这些工具包括日志管理,类装载(classloading),线程管理和安全。它的后续版本将有条件的支持额外工具,例如:中央服务 … www.moon-soft.com|基于3个网页 3. 类加载 ...论RMI实现的几个内部因素,比如线程、序列化和动态类加载(classloading),从而可以使得在使用RMI的时候,对它内部 … ...
Class loaders are part of the Java virtual machine (JVM) code and are responsible for finding and loading class files. Class loaders enable applications that are deployed on servers to access repositories of available classes and resources. Application d
The Java platform uses a delegation model for loading classes. The basic idea is that every class loader has a "parent" class loader. When loading a class, a class loader first "delegates" the search for the class to its parent class loader before attempting to find the class itself. ...
if the JNDI were to use its class loader to load service providers and factories, then it might not see the same classes as the application. Therefore, to try to see what the application can see, the JNDI uses the calling thread's context class loader when it is loading in classes for...