[Bug]: the parameter is not passed if it is in the list but not set

[enricomariam42]

Apache Hop version?

2.4

Java version?

OpenJDK 64-Bit Server VM (build 11.0.9.1+1-post-Uos-1deb10u2, mixed mode, sharing)

Operating system

Linux

What happened?

In the "pipeline" action listing the parameter without setting it does not pass it to the sub pipeline.
It happens if a parameter is defined and set in a main wf, it is defined in the called pl,
in the action "pipeline" the action "Pass the parameter value to the secondary pipeline" is selected,
and the parameter is listed but not set
test_parameter.zip

Issue Priority

Priority: 2

Issue Component

Component: Actions

[campen]

I am seeing this also in 2.4...no issue in 2.3

[hansva]

.take-issue

[hansva]

I see what's happening, and I'm inclined to fix it. But honestly I think getting an empty input_parameter is actually the correct result...
Either you remove the parameter form the pipeline action or you pass the value.
You are passing an empty value which I would consider bad practice. it just "happened" to work

[campen]

@hansva - in my case, there shouldn't be an empty value

[campen]

I can run the same workflow in 2.3 and it works...in 2.4, the parameters are not passed in at all.

[enricomariam42]

Hi @hansva. I also think getting an empty input_parameter is actually the "correct" result, as happens if I put a "static" value, but the behavior has changed since 2.3 and that's my concern.