[GROOVY-6407] Problem With EqualsAndHashCode And Primitive Boolean Properties

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.1.6, 2.1.9
• Fix Version/s: 2.2.0-rc-3
• Assignee: Paul King
• Reporter: Jeff Brown
• Created: 29/Oct/13 21:49
• Updated: 15/Oct/15 18:20
• Resolved: 31/Oct/13 16:56

Description

If a class marked with @EqualsAndHashCode contains a boolean property as well as a corresponding "is*" method the EqualsAndHashCode transformation generates some invalid code.

equals_and_hash_code $ groovy -version
Groovy Version: 2.1.9 JVM: 1.6.0_51 Vendor: Apple Inc. OS: Mac OS X
equals_and_hash_code $ 
equals_and_hash_code $ cat Demo.groovy 
@groovy.transform.EqualsAndHashCode
class Demo {
    boolean myBooleanProperty

    boolean isMyBooleanProperty() {
        false
    }

    static main(args) {
        println new Demo().hashCode()
    }
}

equals_and_hash_code $ 
equals_and_hash_code $ groovy Demo.groovy 
Caught: groovy.lang.MissingMethodException: No signature of method: Demo.getMyBooleanProperty() is applicable for argument types: () values: []
Possible solutions: setMyBooleanProperty(boolean), isMyBooleanProperty()
groovy.lang.MissingMethodException: No signature of method: Demo.getMyBooleanProperty() is applicable for argument types: () values: []
Possible solutions: setMyBooleanProperty(boolean), isMyBooleanProperty()
	at Demo.hashCode(Demo.groovy)
	at Demo$hashCode.call(Unknown Source)
	at Demo.main(Demo.groovy:10)
equals_and_hash_code $ 

I have tested with Groovy 2.1.6 and 2.1.9 and both demonstrate this behavior.

This problem is manifesting in Grails. See http://jira.grails.org/browse/GRAILS-10701.