[Apiman-user] Property placeholder within policy does not resolve in the gateway (v1.2.0.Final / APIMAN-831)

Hi, I tried to take the property placeholder functionality for a test drive, which should be available as of v1.2.0.Final. See JIRA: https://issues.jboss.org/browse/APIMAN-831 But for some reason I do not get it to work. Did I configure something wrong or am I running into a bug? I use the property placeholder in the keycloak plugin which is preconfigured in a Docker image. I defined the realm property of the Keycloak plugin as ${external_url}/auth/realms/apiman I started my Docker image with the -e external_url= https://192.168.99.100:8443 parameter to set the environment variable within the Docker container. When I try to access the API I get a failure in Keycloak Plugin saying: { "type": "Authentication", "failureCode": 11004, "responseCode": 401, "message": "Token audience doesn't match domain. Token issuer is https://192.168.99.100:8443/auth/realms/apiman, but URL from configuration is ${external_url}/auth/realms/apiman", "headers": {} } It looks like the property placeholder did not get resolved correctly. When I have a look in the Docker image using docker exec -ti <name> /binbash and do a list of the environment variables. The environment variable is correctly defined: MacBook-Pro-van-Ton:~ ton$ docker exec -ti tiny_wilson /bin/bash [jboss@43c099aae441 ~]$ export declare -x APIMAN_VERSION="1.2.0.Final" .... declare -x external_url="https://192.168.99.100:8443" I also tried setting the property to ${external_url} without the '/auth/realms/apiman' suffix. I figured that it might perhaps will do a full String comparison, but that did not work either. Any ideas? Regards, Ton