The default implementation * throws a ClassNotFoundException. * * @param name * The binary name of the class * * @return The resulting Class object * * @throws ClassNotFoundException * If the class could not be found * * @since 1.2 */ protected Class<?> findClass(String name) throws ...
* as implementation of java.sql.Driver but the actual class * may be missing. In that case a java.util.ServiceConfigurationError * will be thrown at runtime by the VM trying to locate * and load the service. * * Adding a try catch block to catch those runtime errors * if driver no...
Platform classes include Java SE platform APIs, their implementation classes and JDK-specific run-time classes that are defined by the platform class loader or its ancestors. To allow for upgrading/overriding of modules defined to the platform class loader, and where upgraded modules read modules ...
$dx --dex --output=testDex.jar test.jar 1. (注意:打包test.jar时请不要把接口文件打进来. 否则加载时会报错:java.lang.IllegalAccessError: Class ref in pre-verified class resolved to unexpected implementation) 3. 动态加载jar 包示例代码: 首先编写接口和实现,生成jar包(打包jar的时候不要把接口ITest...
The default system class loader is an implementation-dependent instance of this class. If the system property "java.system.class.loader" is defined when this method is first invoked then the value of that property is taken to be the name of a class that will be returned as the system class...
* default implementation of this method searches for classes in the * following order: * * * * Invoke {@link#findLoadedClass(String)} to check if the class * has already been loaded. * * Invoke the {@link#loadClass(String) loadClass} method * on the parent class loader. If...
👉 一个简单的基于ClassLoader用于依赖隔离的容器实现。 #在Java中依赖主要是Jar。 依赖容器自然涉及下面的问题: 可以从多处加载类,并分配不同的ClassLoader ClassLoader之间有继承关系 ClassLoader的继承关系会是一个树 类加载会在上下级ClassLoader之间有委托关系,如: ...
Methods inherited from class java.lang.Object clone,equals,finalize,getClass,hashCode,notify,notifyAll,toString,wait,wait,wait Constructor Detail URLClassLoader public URLClassLoader(URL[] urls,ClassLoaderparent) Constructs a new URLClassLoader for the given URLs. The URLs will be searched in the ...
The default system class loader is an implementation-dependent instance of this class. Java documentation for java.lang.ClassLoader.getSystemClassLoader(). Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described...
JAVA自带的三个类加载器 Java语言系统自带有三个类加载器: - Bootstrap ClassLoader 最顶层的加载类,主要加载核心类库,%JRE_HOME%\lib下的rt.jar、resources.jar、charsets.jar和class等。另外需要注意的是可以通过启动jvm时指定-Xbootclasspath和路径来改变Bootstrap ClassLoader的加载目录。比如java -Xbootclasspa...