the printed example contains a 1.0 element while the pom.xml in the archive does not.
actually i think the entire higher level ("parent" module added as simple-parent's parent) is not reflected in the pdf (simple-parent has no parent)
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just to clarify/expand on the subject: im referring to the chapter 6 example for the 0.3.1 PDF. the example archive is the one linked to from section 6.1.1 (which oddly enough is not translated to a link in the PDF).
this also extends to the child modules - the excerpts in the PDF are different from the actual files in the archive