Legacy elliptic curves have been deprecated and will be removed in a future release

The implementations of 47 named elliptic curves in the SunEC provider have been deprecated. These curves are not implemented using modern techniques and many of them are no longer recommended by standard groups. The implementations of these curves will be removed or replaced in a future release of the JDK.

See the Deprecated Legacy Curves section of the JDK Providers Doc for the complete list of affected curves.