Bug#1025012: zookeeper: starts but is completely unusable

[Christoph Anton Mitterer]

I should perhaps add, that I have installed the zookeeper packages
(zookeeper zookeeperd libzookeeper-java) from testing into stable
(bullseye), all other dependencies were already met with bullseye
versions.

Also, according to https://www.slf4j.org/codes.html#StaticLoggerBinder
and there the question "Failed to load class
org.slf4j.impl.StaticLoggerBinder"... the files "slf4j-nop.jar slf4j-
simple.jar, slf4j-log4j12.jar, slf4j-jdk14.jar or logback-classic.jar"
are needed,... but any except for the latter is in place.

All are in /usr/share/java.

Though manually adding this to the CLASSPATH in
/etc/zookeeper/conf/environment doesn't seem to help.