SSL handshake alert: unrecognized_name error since upgrade to Java 1.7.0

Question

I upgraded from Java 1.6 to Java 1.7 today. Since then an error occur when I try to establish a connection to my webserver over SSL:

javax.net.ssl.SSLProtoco         


        

Answer 1

There is an easier way where you can just use your own HostnameVerifier to implicitly trust certain connections. The issue comes with Java 1.7 where SNI extensions have been added and your error is due to a server misconfiguration.

You can either use "-Djsse.enableSNIExtension=false" to disable SNI across the whole JVM or read my blog where I explain how to implement a custom verifier on top of a URL connection.