Merge pull request #211306 from paweenatongbai/broken-links-sunila-sept12

Broken link fix - sunila

Author: prmerger-automator[bot]

articles/postgresql/single-server/concepts-connection-libraries.md

@@ -24,7 +24,7 @@ Most language client libraries used to connect to PostgreSQL server are external
 | Python | [psycopg](https://www.psycopg.org/) | DB API 2.0-compliant | [Download](https://sourceforge.net/projects/adodbapi/) |
 | PHP | [php-pgsql](https://secure.php.net/manual/en/book.pgsql.php) | Database extension | [Install](https://secure.php.net/manual/en/pgsql.installation.php) |
 | Node.js | [Pg npm package](https://www.npmjs.com/package/pg) | Pure JavaScript non-blocking client | [Install](https://www.npmjs.com/package/pg) |
-| Java | [JDBC](https://jdbc.postgresql.org/) | Type 4 JDBC driver | [Download](https://jdbc.postgresql.org/download.html)  |
+| Java | [JDBC](https://jdbc.postgresql.org/) | Type 4 JDBC driver | [Download](https://jdbc.postgresql.org/download/)  |
 | Ruby | [Pg gem](https://deveiate.org/code/pg/) | Ruby Interface | [Download](https://rubygems.org/downloads/pg-0.20.0.gem) |
 | Go | [Package pq](https://godoc.org/github.com/lib/pq) | Pure Go postgres driver | [Install](https://github.com/lib/pq/blob/master/README.md) |
 | C\#/ .NET | [Npgsql](https://www.npgsql.org/) | ADO.NET Data Provider | [Download](https://dotnet.microsoft.com/download) |