[GROOVY-5755] MissingPropertyException thrown when referencing an externally declared constant from a switch case in an enum instance method

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0.5
• Fix Version/s: 2.1.3, 2.2.0-beta-1
• Environment: Mac OS X 10.7.5, IntelliJ IDEA 11.1.3
• Assignee: Paul King
• Reporter: Balazs Zagyvai
• Created: 11/Oct/12 10:22
• Updated: 12/Apr/13 16:55
• Resolved: 26/Mar/13 05:39

Description

For illustration see the code below:

import javax.xml.stream.XMLStreamConstants

enum MyEnum {
     INSTANCE {
        String getName(int i) {
            switch (i) {
                case javax.xml.stream.XMLStreamConstants.START_ELEMENT:
                    return "START_ELEMENT"
                case XMLStreamConstants.END_ELEMENT:
                    return "END_ELEMENT"
            }
        }
    }
}

println MyEnum.INSTANCE.getName(XMLStreamConstants.START_ELEMENT)
println MyEnum.INSTANCE.getName(XMLStreamConstants.END_ELEMENT)

The first invokation of getName succeeds because the constant is referenced with its fully qualified name in the first case statement. The second however fails in spite of the fact that the referenced class is imported.

Exact output of the script is:

START_ELEMENT
Caught: groovy.lang.MissingPropertyException: No such property: XMLStreamConstants for class: MyEnum$1
groovy.lang.MissingPropertyException: No such property: XMLStreamConstants for class: MyEnum$1
	at MyEnum$1.getName(EnumMemberMethodWithSwitchTest.groovy:9)
	at MyEnum$1$getName.call(Unknown Source)
	at EnumMemberMethodWithSwitchTest.run(EnumMemberMethodWithSwitchTest.groovy:18)
	at com.intellij.rt.execution.application.AppMain.main(AppMain.java:120)