[GROOVY-11289] STC: error message for improper property initialization includes internal "<UnionType:"

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 5.0.0-alpha-6
• Component/s: Static Type Checker

Language

groovy

• Assignee: Eric Milles
• Reporter: Eric Milles
• Created: 18/Jan/24 20:20
• Updated: 05/Mar/24 01:53
• Resolved: 24/Jan/24 20:22

Description

Consider the following:

class C {
  void setP(java.util.regex.Matcher matcher) {}
  void setP(java.util.regex.Pattern pattern) {}
}
@groovy.transform.TypeChecked test() {
  new C(p: new Object())
}

STC says "Cannot assign value of type java.lang.Object to variable of type <UnionType:java.util.regex.Matcher+java.util.regex.Pattern>"