ADDITIONAL SYSTEM INFORMATION :
        HttpRequest request = (HttpRequest) HttpRequest.newBuilder()
         .uri(URI.create(strEndpoint))
                .header(strHeaderL, strHeaderR)
                .POST(HttpRequest.BodyPublishers.ofString(joMeter.toString ()))
                .build();

HttpResponse<?> response = client.send(request, HttpResponse.BodyHandlers.ofString());


A DESCRIPTION OF THE PROBLEM :
The HTTP request returns the 400 response since the update to 11.0.14.
The downgrade to 11.0.7 avoids the error and the request receives the 200 response.

The update log refers to a bugfix JDK-8269944 Better HTTP Transport redux. referred.

REGRESSION : Last worked in version 11


FREQUENCY : always