package com.atlassian.plugin.util;
   
   import java.lang.reflect.InvocationHandler;
   import java.lang.reflect.InvocationTargetException;
   import java.lang.reflect.Method;
   
   /**
    * InvocationHandler for a dynamic proxy that ensures all methods are executed with the
    * object class's class loader as the context class loader.
   *
   * @since 3.1.0
   */
  public class ContextClassLoaderSettingInvocationHandler implements InvocationHandler {
      private final Object service;
  
      private final ClassLoader serviceClassLoader;
  
      public ContextClassLoaderSettingInvocationHandler(final Object service) {
          this.service = service;
          this.serviceClassLoader = service.getClass().getClassLoader();
      }
  
      public Object invoke(final Object o, final Method method, final Object[] objects) throws Throwable {
          ClassLoaderStack.push(serviceClassLoader);
          try {
              return method.invoke(service, objects);
          } catch (final InvocationTargetException e) {
              throw e.getTargetException();
          } finally {
              ClassLoaderStack.pop();
          }
      }
  }