@BeforeAll
    public static void setup() throws Throwable {
        val file = new File(FileUtils.getTempDirectory(), "keystore.jwks");
        if (file.exists()) {
            FileUtils.delete(file);
        }
    }
This is {@link OidcDefaultJsonWebKeystoreCacheLoaderTests}.

@author Misagh Moayyed
@since 5.3.0
support/cas-server-support-oidc/src/test/java/org/apereo/cas/oidc/jwks/OidcDefaultJsonWebKeystoreCacheLoaderTests.java