Hello Maven developers, I want to inform you about some compliance issues between the Javadoc of Maven Plugin API and the Maven Core 3.x behavior. I am only a messenger providing the facts and I would like the community to post the opinions and finally a concrete fix(es).
The Maven 3 reports with info log in case of MOJO throws Mojo exception [INFO] BUILD FAILURE The Maven 2 reports with error log in case of MOJO throws Mojo exception: [ERROR] BUILD ERROR [ERROR] BUILD FAILURE Maven 3 is not compliant with the Javadoc in Maven Plugin API 3.8.4 which says the following: [1] Javadoc in MojoExecutionException: "An exception occurring during the execution of a plugin (such as a compilation failure). Throwing this exception causes a "BUILD FAILURE" message to be displayed." [2] Javadoc in MojoFailureException: "An exception occurring during the execution of a plugin. Throwing this exception causes a "BUILD ERROR" message to be displayed." For me the wording in the API matters. Personally, I agree with the name of the class MojoFailureException which contains "Failure" and the wording of the build status correctly corresponds to "BUILD FAILURE". If this wording relation exists, it looks like it is an intended rule, but the other exception MojoExecutionException does not match this rule because no such BUILD EXECUTION exists of course. Regarding the OOP inheritance current diagram looks like this: MojoExecutionException extends AbstractMojoExecutionException MojoFailureException extends AbstractMojoExecutionException For me, a fix in the class inheritance could be compliant with "BUILD FAILURE" if the MojoExecutionException was a type of MojoFailureException, and a certain inheritance diagram with more sub-exceptions and one super-exception. Just my proposal: MojoExecutionException extends MojoFailureException. Perhaps the Javadoc should be fixed, perhaps the inheritance or the build status, log level, not sure, just opening the questions for the audience. [1]: https://maven.apache.org/ref/3.8.4/maven-plugin-api/apidocs/org/apache/maven/plugin/MojoExecutionException.html [2]: https://maven.apache.org/ref/3.8.4/maven-plugin-api/apidocs/org/apache/maven/plugin/MojoFailureException.html Cheers Tibor
