Why don't some PRs trigger codecov-io ?

[tswstarplanet]

• 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.

Recently I have found that some PRs do not trigger codecov-io. But it seemed all PRs could trigger codecov-io previously. Does someone know why ?

[CrazyHZM]

For example?

[tswstarplanet]

#3688

[CrazyHZM]

#3688
There is a trigger ci, what do you think?
https://travis-ci.org/apache/incubator-dubbo/builds/507714081?utm_source=github_status&utm_medium=notification

[tswstarplanet]

But there is no code coverage presented in this pr. In other prs, there may be code coverage.

[CrazyHZM]

But there is no code coverage presented in this pr. In other prs, there may be code coverage.

Because you just modified the annotations, I guess there should be no other code affected.