[BUG] Leaving load_balancer flag unset or set to boolean true/false causes null pointer exception

[ajcaldera1]

Jira Link: DB-13061

Description

After upgrading from 42.3.5-yb-6 to 42.3.5-yb-7 of the PGJDBC driver:

14:40:18    org.testcontainers.containers.ContainerLaunchException: Container startup failed for image docker-public.repo.viacom.com/yugabytedb/yugabyte:2.20.4.0-b50
14:40:18  
14:40:18    Caused by: org.rnorth.ducttape.RetryCountExceededException: Retry limit hit with exception
14:40:18  
14:40:18    Caused by: org.testcontainers.containers.ContainerLaunchException: Could not create/start container
14:40:18  
14:40:18    Caused by: org.rnorth.ducttape.TimeoutException: Timeout waiting for result with exception
14:40:18  
14:40:18    Caused by: java.lang.RuntimeException: java.sql.SQLException: Could not create new connection
14:40:18  
14:40:18    Caused by: java.sql.SQLException: Could not create new connection
14:40:18  
14:40:18    Caused by: com.yugabyte.util.PSQLException: Something unusual has occurred to cause the driver to fail. Please report this exception.
14:40:18  
14:40:18    Caused by: java.lang.NullPointerException: Cannot invoke "com.yugabyte.ysql.LoadBalanceService$LoadBalanceType.name()" because "this.loadBalance" is null```


### Issue Type

kind/bug

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[DB-13061]: https://yugabyte.atlassian.net/browse/DB-13061?atlOrigin=eyJpIjoiNWRkNTljNzYxNjVmNDY3MDlhMDU5Y2ZhYzA5YTRkZjUiLCJwIjoiZ2l0aHViLWNvbS1KU1cifQ

[ashetkar]

@ajcaldera1 Is it okay to change the title to just Leaving load_balancer flag unset causes null pointer exception? The NPE does not show up if it is set to any valid values.

[ajcaldera1]

That's fine. --Alan

…

On Mon, Oct 14, 2024 at 10:45 AM Amogh Shetkar ***@***.***> wrote: @ajcaldera1 <https://github.com/ajcaldera1> Is it okay to change the title to just Leaving load_balancer flag unset causes null pointer exception? The NPE does not show up if it is set to any valid values. — Reply to this email directly, view it on GitHub <#24174 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AHK7WU3QYPRVSBE56CBOWUDZ3PKHJAVCNFSM6AAAAABO7CXRJSVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDIMJRGQ3TENJRGA> . You are receiving this because you were mentioned.Message ID: ***@***.***>

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