Checkstyle - Exclude folder

Additionally to the answer from Philipp, I had to use an absolute pathname ( :-( ) for the suppression file:

<module name="SuppressionFilter">
    <property name="file" value="/Users/xxx/workspace/suppressions.xml"/>
</module>

Looks like the Checkstyle plugin is not using the project home directory.

(at least under eclipse luna / Mac OS X)

<suppress files="[\\/]generated-sources[\\/]" checks="[a-zA-Z0-9]*"/>

this works :)

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