public Secret getSecret() {
        return secret;
    }
Checks the behaviour of {@link io.jenkins.plugins.casc.impl.configurators.DataBoundConfigurator} with non null
{@link Secret} when using package-level {@link javax.annotation.ParametersAreNonnullByDefault} annotations.
test-harness/src/test/java/io/jenkins/plugins/casc/impl/configurators/nonnull/nonnullparampackage/PackageParametersNonNullCheckForNull.java