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0. Java’s Virtual Machine, Java Classes, and the CLASSPATH Variable    Class文件：由字节码组成，字节码文件运行在JVM上；默认情况下是由最后声明、最后加载的    ClassLoader加载。    ClassPath: 定位Class文件的位置。1. Classloader Technology ...

A bundle is a group of Java classes and additional resources equipped with a detailed manifest     on all its contents, as well as additional services needed to give the included group of Java ...

1. Bundles    获取Bundle信息接口：BundleContext,方法：    getBundles();获取当前容器中所有的Bundle    getBundle(long bundleId);获取指定Id的Bundle    getBundle();获取的当前Bundle    例如：     BundleContext bundleContext = ...