The javadoc for the javax.net.ssl.SSLServerSocket class's
setEnabledCipherSuites() method says:

   /**
     * ...
     * @param suites Names of all the cipher suites to enable; null
     * means to accept system defaults.


A value of null should result in IllegalArgumentException.
This documentation was an error and has never been implemented in
the JSSE reference implementation. This semantic is also inconsistent
with SSLSocket's method of the same name and purpose.