AppClassLoader:Bootstrp loader加载完ExtClassLoader后,就会加载AppClassLoader,并且将AppClassLoader的父加载器指定为 ExtClassLoader。AppClassLoader也是用Java写成的,它的实现类是 sun.misc.Launcher$AppClassLoader。 另外我们知道ClassLoader中有个getSystemClassLoader方法,此方法返回的正是AppclassLoader。 System.out...
class.getName()); Since: JDK1.0 See Also: ClassLoader.defineClass(byte[], int, int) Author: unascribed Type parameters: <T> –the type of the class modeled by this Class object. For example, the type of String.class is Class<String>. Use Class<?> if the class being modeled is ...
Launcher中并没有看见BootstrapClassLoader,但通过System.getProperty("sun.boot.class.path")得到了字符串bootClassPath,这个应该就是BootstrapClassLoader加载的jar包路径。 先代码测试一下sun.boot.class.path是什么内容。 System.out.println(System.getProperty("sun.boot.class.path")); ...
1. Launcher初始化了ExtClassLoader和AppClassLoader。 2. Launcher中并没有看见BootstrapClassLoader,但通过System.getProperty("sun.boot.class.path")得到了字符串bootClassPath,这个应该就是BootstrapClassLoader加载的jar包路径。 我们可以先代码测试一下sun.boot.class.path是什么内容。 System.out.println(System....
// ClassNotFoundException thrown if class not found // from the non-null parent class loader } if (c == null) { // If still not found, then invoke findClass in order // to find the class. long t1 = System.nanoTime(); c = findClass(name); ...
加载器去加载 c = findBootstrapClassOrNull(name); } } catch (ClassNotFoundException e) { // ClassNotFoundException thrown if class not found // from the non-null parent class loader } if (c == null) { // If still not found, then invoke findClass in order // to find the class....
{ // If still not found, then invoke findClass in order // 如果都没有找到,则通过自定义实现的findClass去查找并加载 c = findClass(name); // this is the defining class loader; record the stats sun.misc.PerfCounter.getParentDelegationTime().addTime(t1 - t0); sun.misc.PerfCounter.get...
The class loader for an array class, as returned by Class#getClassLoader() is the same as the class loader for its element type; if the element type is a primitive type, then the array class has no class loader. Applications implement subclasses of ClassLoader in order to extend the ...
// If still not found, then invoke findClass in order nHVwi // to find the class. long t1 = System.nanoTime(); c = findClass(name); // this is the defining class loader; record the stats sun.misc.PerfCounter.getParentDelegationTime().addTime(t1 - t0); ...
The class loader for an array class, as returned by Class#getClassLoader() is the same as the class loader for its element type; if the element type is a primitive type, then the array class has no class loader. Applications implement subclasses of ClassLoader in order to extend the ...