Bug Report: H2 database "randomly breaking"

[jonesdevelopment]

General information

Some of the people on my Discord server have reported rare occurrences where the H2 database randomly corrupts. I personally have no idea what's happening, which is why I'm creating this issue to seek help from other, potentially more experienced people.

Steps to reproduce

1. Set the database type to H2
2. Restart your server an unknown amount of times

Sonar dump

/

Additional information

Errors reported by users:

> sonar reload
[17:47:32 INFO]: Sonar » Reloading Sonar...
[17:47:32 INFO] [sonar]: [config] Using system language (EN) for translations.
[17:47:32 INFO] [sonar]: Taking cached snapshots of all packets...
[17:47:32 INFO] [sonar]: Preloading all registered packets...
[17:47:32 INFO]: Sonar » Successfully reloaded (41ms)
[17:47:32 ERROR] [sonar]: [database] Error initializing database: xyz.jonesdev.sonar.libs.h2.jdbc.JdbcSQLNonTransientConnectionException: (Message 90048 not found) [90048-220]

[jonesdevelopment]

Possibly fixed by 8d378d5 (confirmation needed)

[jonesdevelopment]

I haven't any errors since release 2.1.6 (8d378d5).

(The NullPointerException is definitely fixed since it's a pooled-connection-only error, but I'm not sure about the second error.)