[11u] RFR(S): 8237474: Default SSLEngine should create in server role

[Lindenmaier, Goetz]

Hi, 

I would like to downport this for parity with 11.0.8-oracle.
I had to resolve the copyrights. 

Further, in src/java.base/share/classes/sun/security/ssl/SSLContextImpl.java, method engineGetDefaultSSLParameters() is to be patched.

engineGetDefaultSSLParameters() was introduced in 12 by "8209031: SSLSocket should throw an exception when configuring DTLS" https://bugs.openjdk.java.net/browse/JDK-8209031, which is implemented in https://bugs.openjdk.java.net/browse/JDK-8208641.

I dropped the change to this method as it's not in 11.

http://cr.openjdk.java.net/~goetz/wr20/8237474-SSLEngine_server_role-jdk11/01/

original change:
https://bugs.openjdk.java.net/browse/JDK-8237474
https://hg.openjdk.java.net/jdk/jdk/rev/74384366ec1d

Best regards,
  Goetz.