[BUG] ScriptProcessor fails with Byte and Short data types

[andrross]

Describe the bug

#11725 introduced a regression in to OpenSearch 2.8 where the following ingest processor will fail:

{
  "description": "_description",
  "processors": [
    {
      "script" : {
        "source" : "ctx.byte = (byte)127;ctx.short = (short)32767"
      }
    },
    {
      "script" : {
        "source" : "ctx.other_field = 'other_field'"
      }
    }
  ]
}

Related component

Indexing

To Reproduce

Index a document using the pipeline defined above in OpenSearch 2.8 or newer

Expected behavior

Request should not fail

Additional Details

No response

[andrross]

FYI @vikasvb90

[vikasvb90]

@andrross I just reused the existing deepCopyMap to prevent self referencing objects in script. So, the problem has been there in the method even before my change. Data types were missing and surprisingly there were no tests to validate it as well.

[vikasvb90]

I validated that this breaks without my change in toXContent in simulate flow here .