Description
As discussed this in the user mailing list, the client/client.bat is not working as expected in karaf 4.1.0 due to missing the jansi lib in the CLASSPATH.
To fix it, Adding this line into the client/client.bat:
set CLASSPATH=%CLASSPATH%;%KARAF_HOME%\system\org\fusesource\jansi\jansi\1.14\jansi-1.14.jar