Technical solutions are described for debugging a computer program product. An example computer-implemented method includes receiving an identifier of a portion of code from a first module of the computer program product, wherein the portion of code contains a defect. The method further includes displaying a list of execution scenarios that invoke the portion of code from the first module. The method further includes, in response to receipt of a selection of a first execution scenario from the list of execution scenarios, executing the computer program product according to the first execution scenario.