Unable to tunnel through proxy. Proxy returns “HTTP/1.1 407” via https

Question

I am faced with a curious behaviour of java6/8. I try to tunnel through a proxy which needs basic user authentication. Doing this by the standard java Authenticator. If I tr

Answer 1

Change in Java 8 Update 111:

Now, proxies requiring Basic authentication when setting up a tunnel for HTTPS will no longer succeed by default. If required, this authentication scheme can be reactivated by removing Basic from the jdk.http.auth.tunneling.disabledSchemes networking property, or by setting a system property of the same name to "" ( empty ) on the command line.

http://www.oracle.com/technetwork/java/javase/8u111-relnotes-3124969.html

Your options:

• solve the issue (for the sake of security) by upgrading the authentication scheme of your proxy, e.g. to Digest access authentication

• or just workaround the issue by running Java with

  java -Djdk.http.auth.tunneling.disabledSchemes=""