DUBBO-18 将RMI抛出的异常转成RpcException

git-svn-id: http://code.alibabatech.com/svn/dubbo/trunk@153 1a56cb94-b969-4eaa-88fa-be21384802f2

dubbo-rpc-rmi/src/main/java/com/alibaba/dubbo/rpc/protocol/rmi/RmiInvoker.java

@@ -37,7 +37,13 @@ public class RmiInvoker<T> extends AbstractInvoker<T> {
 
     @Override
     protected Result doInvoke(Invocation invocation) throws RpcException {
-        return invoker.invoke(invocation);
+        try {
+            return invoker.invoke(invocation);
+        } catch (RpcException e) {
+            throw e;
+        } catch (Throwable e) {
+            throw new RpcException(e.getMessage(), e);
+        }
     }
 
 }
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