[GitHub] elvis9xu163 opened a new issue #2218: Telnet invoke 方法时当参数中有null值时永远返回null (When using telnet "invoke", if there is a [null] param, the response always be [null] too)

[GitBox <gi...@apache.org>]

elvis9xu163 opened a new issue #2218: Telnet invoke 方法时当参数中有null值时永远返回null (When using telnet "invoke", if there is a [null] param, the response always be [null] too)
URL: https://github.com/apache/incubator-dubbo/issues/2218
 
 
   dubbo> invoke com.alibaba.dubbo.demo.DemoService.sayHello(null)    // null as parameter
   null
   
   reason: 
   InvokeTelnetHandler.isMatch(Class<?>[] types, List<Object> args)
       ...
       } else if (ReflectUtils.isPrimitive(arg.getClass())) {  // there should judge arg is null first
   
   原因： InvokeTelnetHandler.isMatch(Class<?>[] types, List<Object> args)中判断arg的类型时未做null值判断, arg.getClass()抛出了空指针异常

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