[GROOVY-5655] SC: byte[] and Byte[] typecasting issue

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0.1
• Fix Version/s: 2.0.2
• Component/s: Static compilation
• Assignee: Cédric Champeau
• Reporter: Guillaume Sauthier
• Created: 01/Aug/12 16:36
• Updated: 11/Sep/12 01:15
• Resolved: 03/Aug/12 04:54

Description

import groovy.transform.*

@CompileStatic
class Bug3 {
    String test() {
        def b = "foo".bytes
        new String(b)
    }
}

new Bug3().test()

Static compilation is not happy with the above, thinking b is a Byte[] instead of byte[], yielding the following error:

org.codehaus.groovy.runtime.typehandling.GroovyCastException: Cannot cast object '[B@727a9fa7' with class '[B' to class 'byte'
	at org.codehaus.groovy.runtime.typehandling.DefaultTypeTransformation.castToNumber(DefaultTypeTransformation.java:146)
	at org.codehaus.groovy.runtime.typehandling.DefaultTypeTransformation.byteUnbox(DefaultTypeTransformation.java:46)
	at Bug3.test(ConsoleScript34:7)

Whereas, if you explicitly type the variable with byte[] it's okay.