Use felix utils ResourceBuilder and Parser instead of the ManifestParser and ManifestUtil. As with that the feature-support module is empty, remove it.
diff --git a/pom.xml b/pom.xml
index 3cb9e08..cc16c11 100644
--- a/pom.xml
+++ b/pom.xml
@@ -122,12 +122,6 @@
         </dependency>
         <dependency>
             <groupId>org.apache.sling</groupId>
-            <artifactId>org.apache.sling.feature.support</artifactId>
-            <version>0.0.1-SNAPSHOT</version>
-            <scope>provided</scope>
-        </dependency>
-        <dependency>
-            <groupId>org.apache.sling</groupId>
             <artifactId>org.apache.sling.commons.johnzon</artifactId>
             <version>1.0.0</version>
             <scope>provided</scope>