[GROOVY-6311] Using @CompileStatic on code that uses spread operator on a Set results in compilation error

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.1.6
• Fix Version/s: 2.1.7, 2.2.0-beta-2
• Component/s: Compiler, Static compilation
• Assignee: Jochen Theodorou
• Reporter: Adam Brown
• Created: 14/Aug/13 18:41
• Updated: 14/Oct/13 16:54
• Resolved: 21/Aug/13 02:02

Description

The two attached files (bad.groovy & good.groovy) demonstrate the problem. In bad.groovy, a class with the @CompileStatic annotation attempts to collect the objects from a Set<> using the spread operator and fails with the compilation error:

org.codehaus.groovy.control.MultipleCompilationErrorsException: startup failed:
bad.groovy: 17: [Static type checking] - No such property: strings for class: java.util.Set <Inner>
@ line 17, column 13.
println outer.inners*.strings
^

1 error

In good.groovy, the equivalent .collect{} is used for the spread operator and it compiles and runs as expected.