logback-access documentation for request cookies faulty?

[hennr]

Hi there,

I just tried to log request cookies via logback-access making use of this field in my logback-access.xml:
https://logback.qos.ch/manual/layouts.html#reqCookie

I have a spring-boot application here (2.7.3) and logstash-logback-endcoder (7.2) in place.
If I use %cookie{cookie name} logstash-logback-encoder complains that %cookie is unknown which breaks the writing of access logs.
Using %reqCookie on the other hand works.

Is %cookie really valid or should the example in the docs use %reqCookie{cookiename} as well?