GH-1158 - Fix version of Maven Exec Plugin.

Author: odrotbohm

pom.xml

@@ -531,6 +531,11 @@ limitations under the License.
 					<artifactId>maven-shade-plugin</artifactId>
 					<version>3.6.0</version>
 				</plugin>
+				<plugin>
+					<groupId>org.codehaus.mojo</groupId>
+					<artifactId>exec-maven-plugin</artifactId>
+					<version>3.5.0</version>
+				</plugin>
 			</plugins>
 		</pluginManagement>