[GROOVY-9609] ScriptBytecodeAdapter.getPropertyOnSuper fails with method missing for getProperty

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 4.0.0-rc-2
• Assignee: Eric Milles
• Reporter: Eric Milles
• Created: 28/Jun/20 19:05
• Updated: 03/Feb/22 22:29
• Resolved: 05/Dec/21 22:18

Description

ScriptBytecodeAdapter.getPropertyOnSuper calls invokeSuperMethodN(SuperType,thisObject,"getProperty", new Object[]{"propertyName"}), which calls thisObject.getMetaClass().invokeMethod(SuperType,thisObject,"getProperty", messageArguments, true, true). MetaClassImpl's invokeMethod is failing to find public getProperty(String) method in class A.

class A {
  def getX() { 'A' }
}
class B extends A {
  def getX() { 'B' }
}

println new A().getProperty("x") // prints "A"
println new B().getProperty("x") // prints "B"
println ScriptBytecodeAdapter.getPropertyOnSuper(A, new B(), "x") // MissingMethodException: No signature of method: B.getProperty() is applicable for argument types: (String) values: [x]

Also, the message indicates that B is the type that was searched; it should display A.

I found a similar result for ScriptBytecodeAdapter.getFieldOnSuper in GROOVY-9608. I think there is something wrong with the cached super information in MetaClassImpl. https://github.com/apache/groovy/blob/0b886e910bbb0e75aae527fae2cab0ec4f096bf2/src/test/groovy/bugs/Groovy9608.groovy#L53