[JENKINS-70008] CPS-transformed "for" with empty termination never loops (should always)

An empty "for" termination is always looped (treated as true).

for (;;) {

  // infinite loop

}

CPS transformed version never loops. Test for CpsTransformerTest currently fails:

    @​Test

    public void emptyForCondition() throws Throwable {

assertEvaluate(true,

       "boolean looped = false;\n"+

       "for (;;) { looped = true; break; }\n"+

       "looped");

    }

---
Originally reported by vallon, imported from: CPS-transformed "for" with empty termination never loops (should always)

• status: Open
  
• priority: Minor
  
• component(s): workflow-cps-plugin
  
• resolution: Unresolved
  
• votes: 0
  
• watchers: 1
  
• imported: 2025-12-07
  

Raw content of original issue

An empty "for" termination is always looped (treated as true).




for (;;) {

  // infinite loop

}





CPS transformed version never loops.  Test for CpsTransformerTest currently fails:




    @Test

    public void emptyForCondition() throws Throwable {

        assertEvaluate(true,

                       "boolean looped = false;\n"+

                       "for (;;) { looped = true; break; }\n"+

                       "looped");

    }

• environment: groovy-cps/master bd35d05

Start with the failing emptyForCondition test in CpsTransformerTest and trace how the CPS transformation handles a for loop with an empty condition. Confirm the expected behavior from the test, then make the test pass so the empty condition is treated as true and the loop executes.

Written by the indexing model from the issue text.