[JENKINS-43389] switch statement default case not called if other match found in Pipeline DSL

The simplest of scripts to reproduce the issue:

switch ("triggervalue") {

    case "triggervalue":

        echo "triggervalue match"

    default:

        echo "Sorry, this does not print..."

}

When no other case is triggered, then the default does seem to work.

 

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Originally reported by bwijsmuller, imported from: switch statement default case not called if other match found in Pipeline DSL

• status: In Progress
  
• priority: Minor
  
• component(s): workflow-cps-plugin
  
• label(s): complex-cps-code, cps, switch, triaged-2018-11
  
• resolution: Unresolved
  
• votes: 1
  
• watchers: 4
  
• imported: 2025-12-07
  

Raw content of original issue

The simplest of scripts to reproduce the issue:



switch ("triggervalue") {

    case "triggervalue":

        echo "triggervalue match"

    default:

        echo "Sorry, this does not print..."

}





When no other case is triggered, then the default does seem to work.


 

• environment: redhat linux, jenkins 2.34, Pipeline 2.5

Start with the Pipeline DSL switch statement entry point and run the minimal reproducer from the issue on the reported Jenkins and Pipeline versions. Trace how a matching case and the default case are handled, then add a regression test showing the expected output for both matching and nonmatching cases.

Written by the indexing model from the issue text.