Fix java doc for MultipleListenerValidator
### Motivation
*Fix the java doc mentioned in [#12353](https://github.com/apache/pulsar/pull/12353/files#r729887373)*
### Modifications
*Fix java doc for MultipleListenerValidator#validateAndAnalysisAdvertisedListener.*
@@ -39,10 +39,11 @@ public final class MultipleListenerValidator {
/**
* Validate the configuration of `advertisedListeners`, `internalListenerName`.
- * 2. the listener name in `advertisedListeners` must not duplicate.
- * 3. user can not assign same 'host:port' to different listener.
- * 4. if `internalListenerName` is absent, the first `listener` in the `advertisedListeners` will be the `internalListenerName`.
- * 5. if pulsar do not specify `brokerServicePortTls`, should only contain one entry of `pulsar://` per listener name.
+ * 1. `advertisedListeners` consists of a comma-separated list of endpoints.
+ * 2. Each endpoint consists of a listener name and an associated address (`listener:scheme://host:port`).
+ * 3. A listener name may be repeated to define both a non-TLS and a TLS endpoint.
+ * 4. Duplicate definitions are disallowed.
+ * 5. If `internalListenerName` is absent, set it to the first listener defined in `advertisedListeners`.
* @param config the pulsar broker configure.
* @return
*/
