$ mvn clean compile gwt:compile gae:run -Pintegration-test
[INFO] Scanning for projects...
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building GWTP Carstore 1.5-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ carstore ---
[INFO] Deleting /media/no_backup/nkg/learn/GWTP-Samples/carstore/target
[INFO]
[INFO] >>> maven-gae-plugin:0.9.6:unpack (install-server-jar) @ carstore >>>
[INFO]
[INFO] --- maven-checkstyle-plugin:2.14:checkstyle (validate) @ carstore ---
[INFO] Starting audit...
/media/no_backup/nkg/learn/GWTP-Samples/carstore/src/test/java/com/gwtplatform/carstore/cucumber/stepdefs/BasicStepdefs.java:37: Wrong order for 'org.junit.Assert.assertTrue' import.
Audit done.
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 2.120s
[INFO] Finished at: Thu Mar 26 11:10:24 CET 2015
[INFO] Final Memory: 20M/311M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-checkstyle-plugin:2.14:checkstyle (validate) on project carstore: An error has occurred in Checkstyle report generation. Failed during checkstyle execution: There are 1 checkstyle errors. -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException