How to use

CredentialReadWriteAttributeHandler

in

org.keycloak.subsystem.adapter.extension

  @Override
  public void registerAttributes(ManagementResourceRegistration resourceRegistration) {
    super.registerAttributes(resourceRegistration);
    resourceRegistration.registerReadWriteAttribute(VALUE, null, new CredentialReadWriteAttributeHandler());
  }
}

  @Override
  public void registerAttributes(ManagementResourceRegistration resourceRegistration) {
    super.registerAttributes(resourceRegistration);
    resourceRegistration.registerReadWriteAttribute(VALUE, null, new CredentialReadWriteAttributeHandler());
  }
}