Pulsar client output the auth info may reveal sensitive information

[tabalt]

Is your enhancement request related to a problem? Please describe.

Pulsar client output the auth info may reveal sensitive information

Describe the solution you'd like

Remove auth information from log

Additional context
INFO o.a.p.c.i.ProducerStatsRecorderImpl:102 - Pulsar client config: {
"serviceUrl" : "pulsar://127.0.0.1:6650",
"authPluginClassName" : "org.apache.pulsar.client.impl.auth.AuthenticationToken",
"authParams" : "sensitive_authParams",
"authParamMap" : sensitive_authParamMap,

[racorn]

Unfortunately, this breaks configuration of authentication parameters with a property map supported by

PulsarClient.builder().loadConf(configMap)

like TLS client certificate authentication (where this is no sensitive information, just filenames).

It breaks because the way ConfigurationDataUtils.loadData is implemented, where the configuration data is serialized to a string before it is deserialized back to a desired type (and loose the fields annotated with JsonIgnore).