Change guava version and run system tests (#651)

Author: CarolynRountree

pom.xml

@@ -71,7 +71,7 @@
             <dependency>
                 <groupId>com.google.guava</groupId>
                 <artifactId>guava</artifactId>
-                <version>19.0</version>
+                <version>29.0-jre</version>
             </dependency>
         </dependencies>
     </dependencyManagement>