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    1   /**
    2    *  Licensed to the Apache Software Foundation (ASF) under one or more
    3    *  contributor license agreements.  See the NOTICE file distributed with
    4    *  this work for additional information regarding copyright ownership.
    5    *  The ASF licenses this file to You under the Apache License, Version 2.0
    6    *  (the "License"); you may not use this file except in compliance with
    7    *  the License.  You may obtain a copy of the License at
    8    *
    9    *     http://www.apache.org/licenses/LICENSE-2.0
   10    *
   11    *  Unless required by applicable law or agreed to in writing, software
   12    *  distributed under the License is distributed on an "AS IS" BASIS,
   13    *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   14    *  See the License for the specific language governing permissions and
   15    *  limitations under the License.
   16    */
   17   package org.apache.geronimo.gbean.runtime;
   18   
   19   import java.lang.reflect.Method;
   20   import java.lang.reflect.InvocationTargetException;
   21   
   22   /**
   23    * @version $Rev: 476049 $ $Date: 2006-11-16 20:35:17 -0800 (Thu, 16 Nov 2006) $
   24    */
   25   public final class ReflectionMethodInvoker implements MethodInvoker {
   26       private final Method method;
   27   
   28       public ReflectionMethodInvoker(Method method) {
   29           this.method = method;
   30       }
   31   
   32       public Object invoke(final Object target, final Object[] arguments) throws Exception {
   33           try {
   34               return method.invoke(target, arguments);
   35           } catch (InvocationTargetException e) {
   36               Throwable cause = e.getTargetException();
   37               if (cause instanceof Exception) {
   38                   throw (Exception) cause;
   39               } else if (cause instanceof Error) {
   40                   throw (Error) cause;
   41               }
   42               throw e;
   43           }
   44       }
   45   }

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