http://www.bouncycastle.org/java.html: The Bouncy Castle Crypto package is a Java implementation of cryptographic algorithms. This jar contains JCE provider and lightweight API for the Bouncy Castle Cryptography APIs for JDK 1.5 to JDK 1.8.
  • The Legion of the Bouncy Castle Inc. 
package org.bouncycastle.math.field;

public interface Polynomial
{
    int getDegree();

//    BigInteger[] getCoefficients();

    int[] getExponentsPresent();

//    Term[] getNonZeroTerms();
}