import java.rmi.server.RMIClassLoaderSpi; //导入依赖的package包/类
/**
 * Returns an instance of RMIClassLoaderImpl.
 *
 * @return an instance of RMIClassLoaderImpl
 */
public static RMIClassLoaderSpi getInstance()
{
  if (instance == null)
    instance = new RMIClassLoaderImpl();
  return instance;
}
 

import java.rmi.server.RMIClassLoaderSpi; //导入依赖的package包/类
/**
 * @ar.org.fitc.spec_ref
 * 
 */
public static RMIClassLoaderSpi getDefaultProviderInstance() {

    if (System.getSecurityManager() != null) {
        System.getSecurityManager().checkPermission(
                new RuntimePermission("setFactory"));
    }
    if (provider == null) {
        provider = new RMIDefaultClassLoaderSpi();
    }
    return provider;
}
 

import java.rmi.server.RMIClassLoaderSpi; //导入依赖的package包/类
public void testGetDefaultProvideInstance() {
    assertTrue(RMIClassLoader.getDefaultProviderInstance() instanceof RMIClassLoaderSpi);
}