Javadoc: PgChannel#exceptionHandler is a no-op #1281

Job	Run time
Run tests (ubuntu-latest, PostgreSQL-9, 25)	4m 39s
Run tests (ubuntu-latest, PostgreSQL-11, 8)	4m 31s
Run tests (ubuntu-latest, PostgreSQL-11, 25)	5m 1s
Run tests (ubuntu-latest, PostgreSQL-10, 25)	4m 27s
Run tests (ubuntu-latest, PostgreSQL-9, 8)	4m 28s
Run tests (ubuntu-latest, PostgreSQL-10, 8)	4m 25s
Run tests (ubuntu-latest, MySQL-5.7, 8)	2m 11s
Run tests (ubuntu-latest, MariaDB-10.4, 25)	2m 8s
Run tests (ubuntu-latest, MySQL-8.0, 25)	2m 6s
Run tests (ubuntu-latest, MSSQL-2017-latest, 25)	1m 43s
Run tests (ubuntu-latest, MySQL-8.0, 8)	2m 20s
Run tests (ubuntu-latest, Oracle-23, 25)	2m 0s
Run tests (ubuntu-latest, MSSQL-2019-latest, 8)	1m 44s
Run tests (ubuntu-latest, DB2-11.5, 8)	6m 15s
Run tests (ubuntu-latest, SQL-templates, 8)	6m 40s
Run tests (ubuntu-latest, MySQL-5.6, 8)	2m 8s
Run tests (ubuntu-latest, MSSQL-2019-latest, 25)	1m 49s
Run tests (ubuntu-latest, MySQL-5.6, 25)	2m 1s
Run tests (ubuntu-latest, SQL-templates, 25)	6m 23s
Run tests (ubuntu-latest, MySQL-5.7, 25)	2m 0s
Run tests (ubuntu-latest, MSSQL-2017-latest, 8)	1m 54s
Run tests (ubuntu-latest, MariaDB-10.4, 8)	2m 21s
Deploy to OSSRH	-1s
	1h 13m 13s

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