[GROOVY-9206] Cannot use annotation with attribute of type char

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 4.0.4
• Labels: annotations
• Assignee: Eric Milles
• Reporter: Eric Milles
• Created: 25/Jul/19 15:58
• Updated: 23/Jul/22 21:05
• Resolved: 06/Jul/22 22:51

Description

Consider the following:

import java.lang.annotation.*;
@Target(ElementType.FIELD)
public @interface A {
  char value();
}

​class C {
  @A((char)';')
  String tokens
}

This errors with: Expected '(char) ;' to be an inline constant of type char in @A. I've tried a bare 1-character string literal, coercion, an int literal, and assignment to a static final field/property with similar results. Not sure if it is possible to use this annotation without some kind of fix.

Issue Links

• is related to: GROOVY-9205 Specify primitive annotation default value using number literal with cast/coerce
• relates to: GROOVY-6025 Using short, byte, char annotation definition attribute constants should be supported
• relates to: GROOVY-7252 Integer literal not accepted for primitive short annotation attribute
• relates to: GROOVY-9366 Unable represent literal byte costant
• relates to: GROOVY-10068 Cannot compile when set short value to annotation by already defined short variable since version 2.5.4