RFR: 8273402: Use derived NamingExceptions in com.sun.jndi.ldap.Connection#readReply

Tue Sep 14 15:15:09 UTC 2021

On Thu, 9 Sep 2021 22:02:55 GMT, Aleksei Efimov <aefimov at openjdk.org> wrote:

> Hi,
> The following fix changes type of exception thrown when an LDAP operation fails for reasons like read timeout or connection closure/cancellation: instead of throwing a general `NamingException`, the internal LDAP connection class will throw a [`CommunicationException`](https://github.com/openjdk/jdk/blob/master/src/java.naming/share/classes/javax/naming/CommunicationException.java#L29) that better matches the reasons described.
> 
> Testing shows no problem with the proposed fix.

Thanks, will do.

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PR: https://git.openjdk.java.net/jdk/pull/5456