In JDK-8233954, it is reported that a test case could throw UnsatisfiedLinkError in JDK 11.0.5. I cannot reproduce this Error message with JDK 11.0.1, 11.0.5 and JDK 14 repository code. It would be nice if we could make further evaluation if it is really possible to throw UnsatisfiedLinkError when using SunEC provider algorithms, for example KeyPairGenerator.

UnsatisfiedLinkError stack described in JDK-8233954:
Exception in thread "main" java.lang.UnsatisfiedLinkError: sun.security.ec.ECKeyPairGenerator.isCurveSupported([B)Z
at jdk.crypto.ec/sun.security.ec.ECKeyPairGenerator.isCurveSupported(Native Method)
at jdk.crypto.ec/sun.security.ec.ECKeyPairGenerator.ensureCurveIsSupported(ECKeyPairGenerator.java:135)
at jdk.crypto.ec/sun.security.ec.ECKeyPairGenerator.initialize(ECKeyPairGenerator.java:114)
at java.base/java.security.KeyPairGenerator$Delegate.initialize(KeyPairGenerator.java:699)
at java.base/sun.security.ssl.ECDHKeyExchange$ECDHEPossession.<init>(ECDHKeyExchange.java:112)
at java.base/sun.security.ssl.SSLKeyExchange$T13KeyAgreement.createPossession(SSLKeyExchange.java:575)
at java.base/sun.security.ssl.SSLKeyExchange.createPossessions(SSLKeyExchange.java:88)
at java.base/sun.security.ssl.KeyShareExtension$CHKeyShareProducer.produce(KeyShareExtension.java:263)
at java.base/sun.security.ssl.SSLExtension.produce(SSLExtension.java:532)
at java.base/sun.security.ssl.SSLExtensions.produce(SSLExtensions.java:249)
at java.base/sun.security.ssl.ClientHello$ClientHelloKickstartProducer.produce(ClientHello.java:648)
at java.base/sun.security.ssl.SSLHandshake.kickstart(SSLHandshake.java:515)
at java.base/sun.security.ssl.ClientHandshakeContext.kickstart(ClientHandshakeContext.java:107)
at java.base/sun.security.ssl.TransportContext.kickstart(TransportContext.java:228)
at java.base/sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:395)
at java.base/sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.java:567)
at java.base/sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:185)
at java.base/sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:168)
at com.example.NoEcTest.main(NoEcTest.java:13)

Steps to reproduce the issue, described in JDK-8233954:
1) Install Oracle JDK 11.0.5 on Windows
2) Remove sunec.dll
3) Try to establish a TLS connection

Test code, described in JDK-8233954:
package com.example;

import java.io.IOException;
import java.net.HttpURLConnection;
import java.net.URL;

public class NoEcTest {

  public static void main(String[] args) throws IOException {
    URL url = new URL("https://example.com/");
    HttpURLConnection con = (HttpURLConnection) url.openConnection();
    con.setRequestMethod("GET");
    con.connect();
    System.out.println(con.getResponseCode());
  }
}