JSON-P 1.1, introduced in Java EE 8, introduces support for JSON Pointer. JSON Pointer is an Internet Engineering Task Force (IETF) standard that defines a string syntax to identify a specific value within a JSON document, similar to what XPath provides for XML documents.
The syntax for JSON Pointer is straightforward, for example, suppose we have the following JSON document:
{
"dateOfBirth": "1997-03-03",
"firstName": "David",
"lastName": "Heffelfinger",
"middleName": "Raymond",
"salutation": "Mr"
}
If we would like to obtain the value of the lastName property of the document, the JSON Pointer expression to use would be "/lastName".
If our JSON document consisted of an array, then we would have to prefix the property with the index in the array, for...
