Force TLS 1.2 on appengine dev server SDK
问题 This is similar to this question: Force TLS > 1.0 on AppEngine local development server in Java except that the answer doesn't work because it assumes a static SDK location(?). I have a Google App Engine application that uses a third party payment library (braintree) that communicates over HTTPS using TLSv1.2. However, whenever the braintree library makes calls to the braintree sandbox environment the resulting urlfetch always gives the following error: Caused by: javax.net.ssl