[GROOVY-6349] Static type checking error when accessing class of a primitive type

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.1.7, 2.3.0, 2.4.0-beta-3
• Fix Version/s: 2.4.1
• Component/s: Static Type Checker
• Assignee: Unassigned
• Reporter: Rodolfo Cruz
• Created: 16/Sep/13 09:18
• Updated: 02/May/17 02:03
• Resolved: 06/Oct/16 22:51

Description

There is an inconsistency between the behaviour in runtime and in the static type checker when accessing the class of a Java primitive type. Suppose we have the following code:

void runMethod (){
int i = 10
println(i.class)
}

runMethod()

If I run this in the Groovy console everything runs fine, autoboxing is performed and 'class java.lang.Integer' is printed as the output. However, if I annotate the method with @groovy.transform.TypeChecked, there is an exception stating '[Static type checking] - No such property: class for class: int'. The same happens if I don't declare a variable and try to use a literal int instead.

As far as I know, this happens with all the primitive types. In addition, trying to access their metaClass works well with or without the type checking enabled.

I attach some of the examples I could come up with.