Hi Sunshow,

Could you pls. attach a test case to reproduce the issue you described
here? I'd like to further investigate once I receive the reproducer.


On Wed, Mar 7, 2018 at 2:14 PM, Sunshow <suns...@gmail.com> wrote:

> ATT.
> this case consumer leads to throw
> Caused by: java.lang.NoClassDefFoundError: javax/validation/Validation
> even while calling no validation method, unless add all validation
> dependencies to consumer,
> that's not awesome, consumer side check should be activated by consumer
> self.
> one more question about ValidationFilter:
> why the condition check is isNotEmpty:
> ConfigUtils.isNotEmpty(invoker.getUrl().getMethodParameter(invocation.
> getMethodName(),
> Constants.VALIDATION_KEY))
> and previous version check true or false:
> if (invoker.getUrl().getMethodParameter(invocation.getMethodName(),
> Constants.VALIDATION_KEY, false))
> Below is the reply from @ken.lj:
> I think it is reasonable to check validation conditions on consumer side
> before params passed to provider side as this can be more efficient. If we
> keep it this way, we will meet the problem in your case: all consumers have
> to be aware of provider side validation configurations, for example when
> provider opened validation check, consumer side have to add necessary
> dependencies.
> Please, send this problem to dev@dubbo.apache.org, and subscribe to this
> email address <https://github.com/alibaba/dubbo/issues/1393>. We can
> decide
> which way to go after a full discussion.

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