Manual: https://rawgit.com/FirebirdSQL/fbjava/1.0.0-alpha-1/src/etc/doc/fbjava.pdf
Java Docs: https://rawgit.com/FirebirdSQL/fbjava/1.0.0-alpha-1/apidocs/index.html
Use this setting as maven repository:
<repository>
<id>fbjava</id>
<name>fbjava</name>
<url>https://raw.githubusercontent.com/asfernandes/fbjava-maven/master/maven2</url>
</repository>
And this setting for the artifact dependency:
<dependency>
<groupId>org.firebirdsql.fbjava</groupId>
<artifactId>fbjava</artifactId>
<version>1.0.0-alpha-1</version>
<scope>provided</scope>
</dependency>