[mojo-dev] [jira] (MJAXB-71) Ensure no exception when a source directory does not exist

[JIRA]

Lennart Jörelid edited a comment on MJAXB-71 Ensure no exception when a source directory does not exist The scenario is more complex than that, Robert. I agree with Anders; I believe that the majority of cases would mind that at least one sourceDirectories exist. Example: Some plugins - such as the AspectJ Maven Plugin - add sourceDirectories to the project they are provided in, and all project children. In the case of the AspectJ plugin, src/main/aspect and src/test/aspect are added as sourceDirectories by default. Maven promotes creating a commonly used build definition (such as AspectJ + JAXB2 to weave and create XSD for entity class definition projects) in a parent pom. However, our example parent pom will always fail the build if it does not contain directories src/main/aspect and src/test/aspect. Heck, even all child projects might not contain these directories - and we should really avoid forcing developers to check in dummy files to ensure that the src/main/aspect directory exists for all child projects to our example parent. This is simply poor operation of the JAXB2 plugin. While both the attached patch and your idea about a property failOnMissingSources could handle the scenario above, I would argue that the default value for the property should be false - so that the example above should work without having to provide extra configuration to the JAXB2 plugin. We should use sensible default values to promote the spirit of maven's usage.

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