Properties mapping of string fields to ES type keyword not working as expected

[temi]

Expected Behavior

Class Test {
    String name
    static searchable = {
        name index: "true"
    }
}

The above code's mapped ES type should be keyword. But the code maps to text.

Actual Behaviour

The above code maps to type text.

Steps To Reproduce

No response

Environment Information

• JDK 8

Example Application

No response

Version

4

[temi]

The issue seems to be in the below code found in SearchableClassPropertyMapping

    boolean isAnalyzed() {
        String index = (String) mappingAttributes.index
        (index == null || index)
    }

The below table shows how the code works.

property	value	value	value
index	"true"	"false"	null
isAnalyzed	true	true	true
ES type	"text"	"text"	"text"

The code should work like below.

property	value	value	value
index	"true"	"false"	null
isAnalyzed	false	true	true
ES type	"keyword"	"text"	"text"