Merge pull request #80 from jbonofre/KARAF-6175

[KARAF-6175] Avoid NPE when pushing features repository to the cluster
diff --git a/assembly/src/main/resources/features.xml b/assembly/src/main/resources/features.xml
index d01bddf..4208c48 100644
--- a/assembly/src/main/resources/features.xml
+++ b/assembly/src/main/resources/features.xml
@@ -29,6 +29,7 @@
     <feature name="hazelcast" description="In memory data grid" version="${hazelcast.version}">
         <configfile finalname="${karaf.etc}/hazelcast.xml">mvn:org.apache.karaf.cellar/apache-karaf-cellar/${project.version}/xml/hazelcast</configfile>
         <feature>transaction</feature>
+        <bundle>mvn:javax.cache/cache-api/1.1.0</bundle>
         <bundle>mvn:com.eclipsesource.minimal-json/minimal-json/0.9.2</bundle>
         <bundle>mvn:com.hazelcast/hazelcast-all/${hazelcast.version}</bundle>
     </feature>