class loader hierarchy

Java's JVM Learning note Five (practice writing your own class loader)Course Source: http://download.csdn.net/detail/yfqnihao/4866501In the third and fourth sections we have been emphasizing that class loaders and security managers can be dynamically extended, or that they can be customized by the user, and today we are trying to do this part of the practice, of

Function: Gets the binary byte stream that describes this class by naming the permission of the classEach class in the JVM is determined by its class loader and the class itself, and the different classloader have separate namespaces, and the same

The previous blog briefly mentioned some of the relevant knowledge involved in the Java reflection mechanism, so classloader is one of them. This blog on the detailed classloader to do a relatively deep understanding. What you need to know is that the class type is not ClassLoader, because the information that ClassLoader needs is provided by it. The class type will be introduced in the next blog post.Intro

to understand the class loader, first understand the loadI. Loading of classes (overview of loading classes)When a program wants to use a class, if the class has not yet been loaded into memory, the system initializes the class by loading, connecting, and initializing three

Class Loader The custom ClassLoader must inherit the ClassLoader class and override the findClass method of the parent class. Because the loadClass method contains the delegate mechanism of the Class Loader, we still retain the l

Welcome loading Please indicate Source: Http://blog.csdn.net/yfqnihaoCourse Source: http://download.csdn.net/detail/yfqnihao/4866501In the third and fourth sections we have been emphasizing that class loaders and security managers can be dynamically extended, or that they can be customized by the user, and today we are trying to do this part of the practice, of course, before reading this article, at least read note three.Let's start with the dynamic

Tomcat-Orthodox Class Loader architecture, tomcat-loading Architecture Mainstream Java Web servers include tomcat, Jetty, WebLogic, WebSphere, etc. These servers all implement their own defined loaders (generally one or more ), because a fully functional server needs to solve the following problems: The Java class libraries used by two Web applications deployed

(); Class　appClass　=　appLoader.loadClass ("com.acme.devices.SinisterEngine"); ... ClassLoader　appLoader　=　... Class　appClass　=　appLoader.loadClass ("com.acme.devices.SinisterEngine"); To be replaced by: Bundle　appBundle　=　... Class　appClass　=　appBundle.loadClass ("com.acme.devices.SinisterEngine"); Although we have to do a lot of work so that OSGi can load the

Java virtual machine loads a class, which ClassLoader does it use?◇ the class loader of the current thread is first loaded to load the first class in a thread◇ If Class A refers to Class B, then the Java Virtual machine will use

The following shows the custom class loader. Package COM. jadyer. classloader; import Java. io. bytearrayoutputstream; import Java. io. file; import Java. io. fileinputstream; import Java. io. filenotfoundexception; import Java. io. ioexception; import Java. io. inputstream;/*** go deep into the JVM's custom Class Loader