This issue has been moved from the zendframework repository as part of the bug migration program as outlined here - http://framework.zend.com/blog/2016-04-11-issue-closures.html

Original Issue: https://api.github.com/repos/zendframework/zendframework/issues/7544
User: @dreadnought78
Created On: 2015-05-23T22:04:16Z
Updated At: 2015-11-06T23:57:01Z
Body
If the user forgot or send some required parameter with a wrong name the server returns the error ERROR_INVALID_PARAMS.

This request added a invalid parameters list in the json response.

Result before

{
    "error":{
        "code":-32602,
        "message":"Invalid params",
        "data":null
    },
    "id":"8",
    "jsonrpc":"2.0"
}

Result after

{
    "error":{
        "code":-32602,
        "message":"Invalid param(s): [estimatedMonths, location, specieId, coatTypeId]",
        "data":null
    },
    "id":"8",
    "jsonrpc":"2.0"
}

*Please do not consider this pull request if this implementation has not been made before for security reasons.