@Reference annotation issue

[YoungHu]

• I have searched the issues of this repository and believe that this is not a duplicate.
• I have checked the FAQ of this repository and believe that this is not a duplicate.

Environment

• Dubbo version: 2.6.2
• Operating System version: mac os 10.13/win10
• Java version: JDK6/7/8

Step to reproduce this issue

1. provider side shutdown
2. start consumer side use @reference annotation(check=true)
3. invoke provider get NPE

Pls. provide [GitHub address] to reproduce this issue.

Expected Result

like consumer with xml config <dubbo:refrence>, if not provider application startup failed.

Actual Result

application startup successful, and when invoke provider get NPE, then we startup the provider side still get NPE

If there is an exception, please attach the exception trace:

Just put your stack trace here!

case reason:
when use @Refence annotation(be know that check default value is true) , if no provider actually ReferenceConfig class throw exception, but this exception was ignored.

[rocky-peng]

this issue had been resolved in the newest master . test date: 2018-08-4

[YoungHu]

same issue with #1999 ,so close this one