Eric Milles created GROOVY-11289:
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             Summary: STC: error message for improper property initialization 
includes internal "<UnionType:"
                 Key: GROOVY-11289
                 URL: https://issues.apache.org/jira/browse/GROOVY-11289
             Project: Groovy
          Issue Type: Improvement
          Components: Static Type Checker
            Reporter: Eric Milles


Consider the following:
{code:groovy}
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())
}
{code}

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



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