How to get owner of upstream build in downstream build without using parameter?

[Gajanan Mahajan]

I have upstream and downstream pipelines and in downstream pipeline, I want to store user, who started upstream build, in downstream build variable.

I used following in downstream pipeline but it results into error - `java.lang.NullPointerException: Cannot invoke method getUserId() on null object`

    Owner = currentBuild.rawBuild.getCause(Cause.UserIdCause).getUserId()

One way is to store it in a variable in upstream pipeline and pass it as param to downstream pipeline but that is additional handling and considering my parameters list, it is little tricky.

Is there any way I can get user who started upstream build in downstream build without passing parameter?

Similarly, `JOB_NAME` and `BUILD_NUMBER` of upstream to downstream.

[Krish S]

You could try this : 

def owner = currentBuild.getBuildCauses(‘hudson.model.Cause$UserIDCause’)

manager.addShortText(“${Approval.userId[0]} ${Approval.userName}”)

Thanks, 

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