SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder"

[david0]

I get this error message when running the jaxb task:

> Task :framework:jaxbJavaGenXsd
[ant:jaxb] SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
[ant:jaxb] SLF4J: Defaulting to no-operation (NOP) logger implementation
[ant:jaxb] SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.

I fixed that by adding a sl4j simple implementation:

		jaxbext "org.slf4j:slf4j-simple:1.7.9"

Shouldn't sl4j be configured by the plugin to use the gradle logging by default?