The Maven Issues I met in work

Today my work is to merge the unit tests and integration tests to a new component.

What should I do are:

1. Add maven dependencies and plugins to make them run. For UT, just add the testng dependency For IT, add plugin for additional integration source and resource

               <!-- Adds IT source directory to our build -->
                <plugin>
                    <groupId>org.codehaus.mojo</groupId>
                    <artifactId>build-helper-maven-plugin</artifactId>
                    <version>1.9.1</version>
                    <executions>
                        <!-- Add a new source directory to our build -->
                        <execution>
                            <id>add-integration-test-sources</id>
                            <phase>process-resources</phase>
                            <goals>
                                <goal>add-test-source</goal>
                            </goals>
                            <configuration>
                                <!-- Configures the source directory of our integration tests -->
                                <sources>
                                    <source>src/it/java</source>
                                    <!--<outputDirectory>${project.build.directory}/test-classes</outputDirectory>-->
                                </sources>
   
                            </configuration>
                        </execution>
                        <execution>
                            <id>add-resource</id>
                            <phase>generate-resources</phase>
                                <goals>
                                    <goal>add-resource</goal>
                                </goals>
                            <configuration>
                                <resources>
                                    <resource>
                                        <directory>src/it/resources</directory>
                                    </resource>
                                </resources>
                            </configuration>
                        </execution>
                    </executions>
                </plugin>
   
                 <!-- Runs unit tests -->
                 <plugin>
                     <groupId>org.apache.maven.plugins</groupId>
                     <artifactId>maven-surefire-plugin</artifactId>
                     <configuration>
                         <!-- Tests write logs and hence need these parameters -->
                         <excludes>
                             <exclude>**/*ITCase.java</exclude>
                             <exclude>**/IT*.java</exclude>
                         </excludes>
                     </configuration>
                 </plugin>
   
                 <!-- Runs integration tests -->
                 <plugin>
                     <groupId>org.apache.maven.plugins</groupId>
                     <artifactId>maven-failsafe-plugin</artifactId>
   
                     <executions>
                         <execution>
                             <id>integration-tests</id>
                             <goals>
                                 <goal>integration-test</goal>
                                 <goal>verify</goal>
                             </goals>
                         </execution>
                     </executions>
                 </plugin>
   

There is one issue happend, after I added these plugins the integration test classes which under src/it/java is not complied and I can not find out.

Finally I found the reason, which is so silly, it was because my plugin was added under the tag, instead of the tag, so it is not executed.

The tag was used to share the same plugin configuration across all your project modules, it is not executed automatically.