Jaybird is a JCA/JDBC driver for Firebird. Jaybird is the way to access Firebird databases from a Java application (or any other language running in the JVM).
Jaybird 2.2.8 is also available on Maven
<groupId>org.firebirdsql.jdbc</groupId> <artifactId>jaybird-jdkXX</artifactId> <version>2.2.8</version>
Where jdkXX is either jdk18, jdk17, or jdk16.
In depth manual on the use of Jaybird: The Jaybird 2.1 JDBC Driver Programmer's Manual
This manual has not been updated for Jaybird 2.2; we hope to provide a new version around the release of Jaybird 3.0.