# Java driver 4.15.01 and shard awareness

**URL:** https://forum.scylladb.com/t/java-driver-4-15-01-and-shard-awareness/1385
**Category:** ScyllaDB
**Tags:** drivers, java-driver
**Created:** [March 15, 2024, 3:23pm UTC](https://forum.scylladb.com/t/java-driver-4-15-01-and-shard-awareness/1385 "2024-03-15T15:23:40Z")
**Posts on this page:** 1
**Showing post:** 2

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### Author: ![Lorak](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.scylladb.com/lorak/32/374_2.png) [@Lorak](https://forum.scylladb.com/u/Lorak)
#### Post date: [March 18, 2024, 12:02pm UTC](https://forum.scylladb.com/t/java-driver-4-15-01-and-shard-awareness/1385/2 "2024-03-18T12:02:11Z")

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Java driver 4.x does not support advanced shard awareness afaik, meaning that it won’t use port 19042. Shard awareness will still work - the driver may just take longer to connect as it will have to build connection pool the traditional way, by opening connections to “random” shards.

See my post here: [Questions about scylla java driver 4.x ShardAware feature and NAT issue - #2 by Lorak](https://forum.scylladb.com/t/questions-about-scylla-java-driver-4-x-shardaware-feature-and-nat-issue/1346/2) about my explanation of “shard awareness” and “advanced shard awareness” terms.

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