ClickHouse / ClickHouse/clickhouse-java

`socket_keepalive` doesn't work with shaded clickhouse-jdbc

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bug
Dominant language
Java
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Description

## `socket_keepalive` doesnt' applied

### Steps to reproduce
Note: I would expect that instruction from official site[1] should end up with the same result.

1. Specify following option for apache/cloudberry-pxf:
```

jdbc.connection.property.socket_keepalive
true

```
or in JDBC URL `&socket_keepalive=true`
2. expect that `SO_KEEPALIVE=true`. However it is not.
Actual:
```
# ss -Otnpio state established | grep -F '8123'
0 0 [::ffff:10.1.0.9]:44198 [::ffff:10.1.0.20]:8123 users:(("java",pid=2731285,fd=34)) ts sack illinois wscale:10,4 rto:201 rtt:0.343/0.188
```
Expected (spot the `timer` section!):
```
0 0 [::ffff:10.1.0.29]:15938 [::ffff:10.1.0.20]:8123 users:(("java",pid=514753,fd=36)) timer:(keepalive,10sec,0) ts sack illinois wscale:10,4 rto:201 rtt:0.249/0.123
```

#### Environment
* Cloud
* Client version: 0.9.8 and 0.10.0
* OS: Ubuntu 22.04

#### ClickHouse Server
* ClickHouse Server version: 26.7.5.10
* `CREATE TABLE` statements for tables involved:
```
SELECT toInt32(sleep(600)) AS slept
SETTINGS
function_sleep_max_microseconds_per_block = 600000000,
max_execution_time = 0
```

[1] https://clickhouse.com/docs/integrations/language-clients/java/jdbc#linux

Contributor guide

Open the contributing guide

Research direction

Start by reproducing the JDBC property and URL forms on Ubuntu 22.04 with ClickHouse Server 26.7.5.10, then compare socket behavior for the shaded clickhouse-jdbc client. Done means enabling socket_keepalive produces the expected keepalive timer in ss output for the affected client versions.

Written by the indexing model from the issue text.

Assessment

Tech stack
java, linux
Domain
databases
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Active
Clarity
Mostly clear
Newbie friendliness
52/100

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