Send web service request to bamboo to invoke plan from script runner listener inline script

[amit]

I tried for :

def baseURL = "correct url since post man works " ;
def url = new java.net.URL(baseURL);
def requestMethod = "POST";
URLConnection connection = url.openConnection();

connection.setRequestProperty("Authorization", "Basic copied from postman, it is correct");

connection.setRequestMethod(requestMethod);

connection.setRequestProperty("Content-Type", "application/xml");

connection.setRequestProperty("Accept", "application/xml");

 

connection.connect();

For me: 

connection.setRequestMethod(requestMethod); 

gives me a problem saying that method: setRequestMethod could not be found.

I tried rest client as well, there exception gets raised but does not throw exact error

Kindly help for same.