The annotation processor fails to find the resources in some cases.
I'm facing this problem with Gradle and I also saw a notice in the news page about Eclipse:

[...] but still fail to find bundles located under "src/test/resources/"

Given that the annotation processor rises an error, I cannot compile my project. Unfortunately I don't know how to disable this specific annotation processor in my Gradle build, therefore the only workaround to continue to use CAL10N is to downgrade to v0.7.7.

Therefore I propose to generate warnings instead of errors, so that in such cases the latest version of the library could be used without blocking the compilation.

An alternative approach could be to move the annotation processor to a new optional artifact, so that any issue can be solved simply by removing the artifact from the dependencies.