We do not provide such jar.
JForex jars are available only through maven repository.
One option could be to add the following plugin and run
mvn dependency:copy-dependencies. This will download all jars to target\dependency\ folder.
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<version>3.0.2</version>
<executions>
<execution>
<id>copy-dependencies</id>
<phase>package</phase>
<goals>
<goal>copy-dependencies</goal>
</goals>
</execution>
</executions>
</plugin>