Maven: "Project build error: Unknown packaging: bundle"

I am trying to build pdfbox but I can't seem to resolve this Maven error:

Project build error: Unknown packaging: bundle

Which appear only in the sub-projects pdfbox and preflight.

I have installed the m2e connector and build helper and as suggested here I've installed Tycho but it didn't help either.

<project xmlns="http://ift.tt/IH78KX" xmlns:xsi="http://ift.tt/ra1lAU" xsi:schemaLocation="http://ift.tt/IH78KX http://ift.tt/HBk9RF">
    <modelVersion>4.0.0</modelVersion>

    <parent>
        <groupId>org.apache.pdfbox</groupId>
        <artifactId>pdfbox-parent</artifactId>
        <version>2.0.0-SNAPSHOT</version>
        <relativePath>../parent/pom.xml</relativePath>
    </parent>

    <artifactId>pdfbox</artifactId>
    <packaging>bundle</packaging> <!-- Project build error: Unknown packaging: bundle -->

    <!-- ... -->

    <dependencies>
        <!-- ... -->
    </dependencies>

    <build>
       <!-- ... -->
    </build>

</project>

Does anybody know how to solve this issue?