Declare availability of JAXB APIs at guacamole-ext level (they are provided by the webapp).
<scope>provided</scope>
</dependency>
+ <!-- JAXB -->
+ <dependency>
+ <groupId>javax.xml.bind</groupId>
+ <artifactId>jaxb-api</artifactId>
+ <version>2.2.2</version>
+ <scope>provided</scope>
+ </dependency>
+
<!-- Guacamole Java API -->
<dependency>
<groupId>org.apache.guacamole</groupId>
