test/jdk/sun/security/ec/InvalidCurve.java

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/*
 * @test
 * @bug 8182999
 * @summary Ensure that SunEC behaves correctly for unsupported curves.
 * @run main/othervm -Djdk.sunec.disableNative=false InvalidCurve
 */

import java.security.*;
import java.security.spec.*;
import java.math.*;

public class InvalidCurve {

    public static void main(String[] args) {

        KeyPairGenerator keyGen;
        try {
            keyGen = KeyPairGenerator.getInstance("EC",
                    System.getProperty("test.provider.name", "SunEC"));
            ECGenParameterSpec brainpoolSpec =
                new ECGenParameterSpec("brainpoolP160r1");
            keyGen.initialize(brainpoolSpec);
        } catch (InvalidAlgorithmParameterException ex) {
            System.out.println(ex.getMessage());
            // this is expected
            return;
        } catch (NoSuchAlgorithmException | NoSuchProviderException ex) {
            throw new RuntimeException(ex);
        }

        keyGen.generateKeyPair();

        // If we make it to here, then the test is not working correctly.
        throw new RuntimeException("The expected exception was not thrown.");

    }

}