7194075: Various classes of sunec.jar are duplicated in rt.jar

[Stephen Flores]

Vincent, Sean,

Please review the fix for:

CR 7194075: Various classes of sunec.jar are duplicated in rt.jar

  http://cr.openjdk.java.net/~sflores/7194075/webrev-1/

Changes:

*Changed/renamed any of methods that did not support the public API to 
package private.

*Moved the decode and encode point methods out of ECParameters to a new 
class sun.security.util.ECUtil.

*Changed any "new byte[], System.arraycopy" blocks in ECUtil point 
methods to Arrays.copyOfRange.

*Added a new AlgorithmParameterSpec in sun.security.util to get curves 
by key size, for PKCS11 to use.

*Moved all of static lookup methods in ECParameters, NamedCurve and the 
curve repository to separate class (CurveDB). This made ECParameters and 
NamedCurve cleaner and easier work on (there was some ECParameters cleanup.

*In JSSE and PKCS11 and changed the references to ECParmeters and 
NamedCurve to the ECUtil which has utility methods that use the public APIs.

*Changed to the EC unit test to use the list of supported curves in the 
property that the SunEC provider  has already.

*Changed SunECEntries to build the list of supported curves property 
from the collection in CurveDB.

*Changed the JDK makefiles to not duplicate EC classes in rt.jar.

Thanks,

Steve.