static <T extends Response> RetryRuleWithContent<T> onException(
            BiPredicate<? super ClientRequestContext, ? super Throwable> exceptionFilter) {
        return onException(exceptionFilter, Backoff.ofDefault());
    }
Returns a newly created {@link RetryRuleWithContent} that will retry with the
{@linkplain Backoff#ofDefault() default backoff} if an {@link Exception} is raised and the specified
{@code exceptionFilter} returns {@code true}.
core/src/main/java/com/linecorp/armeria/client/retry/RetryRuleWithContent.java