The following test program runs on OpenJDK17:

///// KeyGeneratorTest.java \\\\\

import javax.crypto.KeyGenerator;
public class KeyGeneratorTest {
        public static void main(String[] args) throws Exception {
                KeyGenerator kg = KeyGenerator.getInstance("HmacSHA1");                
                System.out.println(kg);
                System.out.println("KeyGenerator provider: " + kg.getProvider().getName());
        }
}

But fails on OpenJDK11 with the following exeption:

$ java KeyGeneratorTest
Exception in thread "main" java.security.NoSuchAlgorithmException: HmacSHA1 KeyGenerator not available
	at java.base/javax.crypto.KeyGenerator.<init>(KeyGenerator.java:177)
	at java.base/javax.crypto.KeyGenerator.getInstance(KeyGenerator.java:244)
	at KeyGeneratorTest.main(KeyGeneratorTest.java:5)

I believe this is due to the following functionality in OpenJDK17:
Add SHA3 support to SunPKCS11 provider
https://bugs.openjdk.org/browse/JDK-8242332

Can we backport this to OpenJDK11?