[GROOVY-9648] Bad error message when attempting to call a missing constructor

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.0.5
• Fix Version/s: 4.0.0-alpha-1, 3.0.6
• Assignee: Paul King
• Reporter: Paul King
• Created: 21/Jul/20 05:39
• Updated: 11/Nov/20 02:00
• Resolved: 24/Jul/20 11:38

Description

For this class here:

class Person {
    String name
    Person(String name)  {
        this.name = name
   }
}

Attempting to construct an instance but supplying the incorrect type yields expected error messages:

new Person(new Date()) // groovy.lang.GroovyRuntimeException: Could not find matching constructor for: Person(Date)
new Person(name: new Date()) // groovy.lang.GroovyRuntimeException: failed to invoke constructor: public Person(java.lang.String) with arguments: [] reason: java.lang.IllegalArgumentException: wrong number of arguments

The second is using normal named args which needs a no-arg constructor.

But when swapping to indy we get:

new Person(new Date()) // groovy.lang.GroovyRuntimeException: Could not find matching constructor for: Person(Date) [Same]
new Person(name: new Date()) // java.lang.invoke.WrongMethodTypeException: cannot convert MethodHandle(String)Person to ()Object [Bad Message]