bootstrap class loader

." The Class Loader architecture guards the borders of the trusted class libraries by making it possible for trusted packages to be loaded with different class loaders than untrusted packages. although you can grant special access privileges between types belonging to the same package by giving members protecte

The process of loading a classThe main task of the ClassLoader is to load the class files into the JVM. As the following illustration shows, the process is divided into three steps: 1. Load: Locate the class file to load and load its byte stream into the JVM;2. Link: Assign the most basic memory structure to the class to be loaded to save its information, such a

The end product of a class's load is a class object in the heap (heap) class objects encapsulate the data structures in the method area and provide Java programmers with an interface to access data structures within the method area. And reflection is like a mirror. This interface is a reflection interface, so we can get the methods and properties of the class, in

Class Loader?? The virtual machine design team takes the "fully qualified name of a class to obtain a description of this type of binary byte stream" in the class loading phase, which is implemented outside the Java Virtual machine. So that the application can decide for itself how to get the classes it needs. The code

Java class loader (1)-Class Loader hierarchy and ModelClass Loader ?? The virtual machine design team put the "get and describe the binary byte stream of this class through the full qualified name of a

Class Loader and custom Class Loader (67), custom 67 Class Loading All class loaders are subclasses of ClassLoader. The class Loader always

Depth class Loader (iii)----class loader classification and grade Depth class loader hierarchy (three type loader) proxy loading mode, parent-client mechanism We first need to kn

com.example.Sample$1 and com.example.Sample$Inner other representations. These methods are described below for further instructions on how the ClassLoader works. The tree-like structure of the ClassLoader is described below.The tree-like structure of the ClassLoaderThe ClassLoader in Java can be broadly divided into two categories, one for the system, the other for Java application developers. There are three main types of ClassLoader available in the system: Boot

Website address: https://tomcat.apache.org/tomcat-6.0-doc/class-loader-howto.html#Class_Loader_Definitions Class Loader Definitions As indicated in the diagram above, Tomcat 6 creates the following class loaders as it is initialized:As shown in the chart above, Tomcat6 creat

virtual machine, together with the class loader that loads it, and each class has a separate class namespace. This sentence can be expressed more commonly: compare two classes are "equal", only if these two classes are loaded by the same class

a delegation mechanism will not present thisCase Because the Java.lang.String class is loaded, the system will eventually be loaded by bootstrap, a destructive string that is permanentlyFar no chance of loading.One article explains the principles of Java class loading in its entirety, as follows:--------------------------------------------Reference begins-------

Unlike other languages, Java runs on a Java Virtual Machine (JVM ). This means that the compiled code is saved in a platform-independent format, rather than running on a specific machine. This format is significantly different from the traditional executable code format. Specifically, unlike C or C ++ programs, Java programs are not an independent executable file, but composed of many separate class files. Each cl