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Additionally, the ChannelBuilders class has been updated to accommodate these changes and provide support for custom principal builders with different authentication mechanisms.

Firstly, the KerberosPrincipalBuilder interface is defined as follows:

public interface KerberosPrincipalBuilder extends KafkaPrincipalBuilder {
    void buildKerberosPrincipalBuilder(KerberosShortNamer kerberosShortNamer);
}

Secondly, the SSLPrincipalBuilder interface is defined as follows:

public interface SSLPrincipalBuilder extends KafkaPrincipalBuilder {
    void buildSSLPrincipalBuilder(SslPrincipalMapper sslPrincipalMapper);
}

Compatibility, Deprecation, and Migration Plan

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