JxBrowser JavaScript Java Bridge API allows passing a string that represents JSON from Java side to JavaScript. On JavaScript side this JSON string will be parsed and converted to appropriate JavaScript object/objects. The following simple example demonstrates how to associate JSON with specific property of window JavaScript object:  

JSValue window = browser.executeJavaScriptAndReturnValue("window");
window.asObject().setProperty("myObject", new JSONString("[123, \"Hello\"]"));

In the code above the "[123, \"Hello\"]" JSON string is associated with the window.myObject property. This JSON string will be converted to appropriate JavaScript object. In this case it will be converted to Array. The following JavaScript code shows how to work with the window.myObject property:

var length = window.myObject.length;
var numberValue = window.myObject[0];
var stringValue = window.myObject[1];

If you set JSONString with string value that doesn't represent JSON, you will get JavaScript error.