@Override
    public String computeKey(final String... keys) {
        val rawKey = String.join(":", keys);
        return DigestUtils.sha256(rawKey);
    }
This is {@link GroovyScriptResourceCacheManager}.

@author Misagh Moayyed
@since 6.3.0
core/cas-server-core-scripting/src/main/java/org/apereo/cas/util/scripting/GroovyScriptResourceCacheManager.java