@Nullable
    public static String parsedPathCacheSpec() {
        return PARSED_PATH_CACHE_SPEC;
    }
Returns the {@linkplain CaffeineSpec Caffeine specification string} of the cache that stores the recent
results for parsing a raw HTTP path into a decoded pair of path and query string.

<p>The default value of this flag is {@value DefaultFlagsProvider#PARSED_PATH_CACHE_SPEC}. Specify the
{@code -Dcom.linecorp.armeria.parsedPathCache=<spec>} JVM option to override the default value.
For example, {@code -Dcom.linecorp.armeria.parsedPathCache=maximumSize=4096,expireAfterAccess=600s}.
Also, specify {@code -Dcom.linecorp.armeria.parsedPathCache=off} JVM option to disable it.
core/src/main/java/com/linecorp/armeria/common/Flags.java