When trying to deploy a WAR file to a Tomcat 9.0.10 instance using the "Deploy Tomcat Application" task this fails because it seems the paths for specific endpoints have changed.
Trying to retrieve Tomcat details from http://tomcat.host:3237/manager//text/serverinfo
Server info returned status code: 403
Try likely variations of Tomcat manager location.
Trying to retrieve Tomcat details from http://tomcat-host:3237/manager//serverinfo
Server info returned status code: 404
Could not detect Tomcat version from server info, trusting configuration of Tomcat 7 or greater
Could not deploy application: Datenübergabe unterbrochen (broken pipe) (Write failed)
java.net.SocketException: Datenübergabe unterbrochen (broken pipe) (Write failed)
at java.net.SocketOutputStream.socketWrite0(Native Method)
(... rest of stacktrace ...)
Since the Bamboo Server instance has not been upgraded it might be as simple as upgrading to a newer version - but I have not seen any announcements in the release notes up to 6.10 (without browsing through all the collapsed issue lists).
If I directly open the links e.g. /manager//serverinfo with the reported 404 Tomcat itself gives the explanation that the links have changed:
The page you tried to access (/manager//serverinfo) does not exist.
The Manager application has been re-structured for Tomcat 7 onwards and some of URLs have changed. All URLs used to access the Manager application should now start with one of the following options:
/manager/html for the HTML GUI
/manager/text for the text interface
/manager/jmxproxy for the JMX proxy
/manager/status for the status pages
Note that the URL for the text interface has changed from "/manager" to "/manager/text".