- </plugin>
- <plugin>
- <groupId>org.apache.maven.plugins</groupId>
- <artifactId>maven-checkstyle-plugin</artifactId>
- <configuration>
- <propertyExpansion>checkstyle.violationSeverity=error</propertyExpansion>
- </configuration>
+ <version>2.26.0</version>
+ <executions>
+ <execution>
+ <goals>
+ <goal>compile</goal>
+ </goals>
+ <configuration>
+ <javaSourceVersion>${maven.compiler.release}</javaSourceVersion>
+ <outputDirectory>${project.build.directory}/generated-sources/xtend</outputDirectory>
+ </configuration>
+ </execution>
+ </executions>