Invalid pom.xml when using the Karaf Blueprint archetype

The pom.xml created by the blueprint archetype is marked as incorrect by my IDE. The code in question is :
```xml
<configuration>
	<Bundle-SymbolicName>${project.artifactId}</Bundle-SymbolicName>
	<Bundle-Version>${project.version}</Bundle-Version>
	<Export-Package>
		${package}*;version=${project.version}
	</Export-Package>
	<Import-Package>
		*
	</Import-Package>
</configuration>
```
If I enclose all the elements of `<configuration>` within the `<instructions>` elements, it is working fine.