Javadoc is not being loaded from interfaces. Fixes #1548

Author: bnasslahsen

pom.xml

@@ -78,7 +78,7 @@
 		<javax.jws-api.version>1.1</javax.jws-api.version>
 		<jjwt.version>0.9.1</jjwt.version>
 		<spring-native.version>0.12.1</spring-native.version>
-		<therapi-runtime-javadoc.version>0.13.0</therapi-runtime-javadoc.version>
+		<therapi-runtime-javadoc.version>0.15.0</therapi-runtime-javadoc.version>
 		<spring-cloud-function.version>3.2.4</spring-cloud-function.version>
 		<dependency-check.version>7.1.0</dependency-check.version>
 	</properties>