Maximum length/legal characters for JSESSIONID cookie

My setup is using JSESSIONID persistence to load-balance a weblogic application, and the JSESSIONID values they send to the client are quite convoluted:

JSESSIONID=4k97S6kYZcX0LpD5tLLSC54yy9y2fzrtzbR90R6Qd31hGY7QQm2L!916453517

Is that length in bounds of what would work with the following persistence iRule? My version is 9.4.4:

when HTTP_RESPONSE {
    if { [HTTP::cookie exists "JSESSIONID"] } {
        persist add uie [HTTP::cookie "JSESSIONID"]
    }
}
when HTTP_REQUEST {
    if { [HTTP::cookie exists "JSESSIONID"] } {
        persist uie [HTTP::cookie "JSESSIONID"]
    }
}

Thanks.