Summary:
To have a check inside Harness workflows for the JEXL variables like workflow variable, service variable or context variable used in Harness for a null value.
This check can be implemented by a JEXL method to check for null values, i.e. empty()
Having checks for null value would be beneficial:
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When values for the variable are generated during the workflow run time and for better error handling it can be used
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To have conditional execution of steps and phase base on condition, for example a variable has null value then skip this respective step/phase
Following are examples of how to check for null values inside the Harness workflow:
