[GROOVY-7155] Java stub generation fails on statically imported field used as annotation parameter

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.3.7
• Component/s: Stub generator / Joint compiler
• Assignee: Eric Milles
• Reporter: Marcin Zajaczkowski
• Created: 05/Nov/14 14:47
• Updated: 08/Mar/22 12:16
• Resolved: 29/Oct/21 21:17

Description

groovyc fails to generate compiling Java stub for Groovy classes which use statically imported field as an annotation parameter. E.g.

import static stub.Constants.CONST1

class GroovyToStub {
    @GroovyAnn(CONST1)  //fails
    void methodToStub() {
    }
}

/tmp/groovy-java-stubs/stub/GroovyToStub.java:21: error: cannot find symbol
@stub.GroovyAnn(value=CONST1) public  void methodToStub() { }
                      ^
  symbol:   variable CONST1
  location: class GroovyToStub
1 error
startup failed:
Compilation failed; see the compiler error output for details.

1 error

A simple workaround is to use Constants.CONST1 with normal import, but in some cases it can reduce original code readability.

Looking briefly at the code there could be missing "printing" static imports in JavaStubGenerator.printImports().

Sample project reproducing problem:
https://github.com/szpak/code-examples-and-poc/tree/master/groovy-joint-compilation-issue