dbeaver throws java.lang.IndexOutOfBoundsException on `set mode`

The following H2 configuration statement causes dbeaver to throw an exception:
```
SET MODE PostgreSQL;
```
```
java.lang.IndexOutOfBoundsException: Index -1 out of bounds for length 16
```

The file is still formatted on `spotless:apply` and in most projects the entire spotless process succeeds, but sometimes the next formating step freezes.

Maven 3.8.7
OpenJDK 11.0.18
spotless 2.31.0