ConnectionFactory's JavaDoc: provide the list of keys that can be used on the properties.

[laugimethods]

The connectionFactory is defined by a Properties object, which should be fill with values defined by a defined set of Keys.
Those keys can be inferred from the actual source code ConnectionFactory.java, but are not listed on the generated ConnectionFactory API...

[mcqueary]

Isn't this what you're looking for (hint: go to javadoc for io.nats.client.Constants and in any property, click Constant Field Values?
http://static.javadoc.io/io.nats/jnats/0.5.3/constant-values.html#io.nats.client.Constants.PROP_CLOSED_CB

EDIT: I will say, in retrospect, those property name constants should be on ConnectionFactory. I'll open an issue.

[sasbury]

ConnectionFactory was removed, but the Options properties are all javadoc'd in version 2.0