Added package javadocs.
diff --git a/core/net/src/main/java/org/onlab/onos/cluster/impl/package-info.java b/core/net/src/main/java/org/onlab/onos/cluster/impl/package-info.java
new file mode 100644
index 0000000..d98f983
--- /dev/null
+++ b/core/net/src/main/java/org/onlab/onos/cluster/impl/package-info.java
@@ -0,0 +1,4 @@
+/**
+ * Subsystem for tracking controller cluster nodes.
+ */
+package org.onlab.onos.cluster.impl;
\ No newline at end of file
diff --git a/core/store/src/main/java/org/onlab/onos/store/cluster/impl/package-info.java b/core/store/src/main/java/org/onlab/onos/store/cluster/impl/package-info.java
new file mode 100644
index 0000000..fe3df5d
--- /dev/null
+++ b/core/store/src/main/java/org/onlab/onos/store/cluster/impl/package-info.java
@@ -0,0 +1,4 @@
+/**
+ * Implementation of a distributed cluster node store using Hazelcast.
+ */
+package org.onlab.onos.store.cluster.impl;
\ No newline at end of file
diff --git a/core/store/src/main/java/org/onlab/onos/store/package-info.java b/core/store/src/main/java/org/onlab/onos/store/package-info.java
new file mode 100644
index 0000000..e0b6956
--- /dev/null
+++ b/core/store/src/main/java/org/onlab/onos/store/package-info.java
@@ -0,0 +1,5 @@
+/**
+ * Common abstractions and facilities for implementing distributed store
+ * using Hazelcast.
+ */
+package org.onlab.onos.store;
\ No newline at end of file
diff --git a/pom.xml b/pom.xml
index 55a267e..21a8aef 100644
--- a/pom.xml
+++ b/pom.xml
@@ -392,7 +392,7 @@
<group>
<title>Core Subsystems</title>
<packages>
- org.onlab.onos.net.device.impl:org.onlab.onos.net.link.impl:org.onlab.onos.net.host.impl:org.onlab.onos.net.topology.impl:org.onlab.onos.net.packet.impl:org.onlab.onos.net.flow.impl:org.onlab.onos.net.trivial.*:org.onlab.onos.net.*.impl:org.onlab.onos.cluster:org.onlab.onos.event.impl:org.onlab.onos.store.*
+ org.onlab.onos.cluster.impl:org.onlab.onos.store:org.onlab.onos.net.device.impl:org.onlab.onos.net.link.impl:org.onlab.onos.net.host.impl:org.onlab.onos.net.topology.impl:org.onlab.onos.net.packet.impl:org.onlab.onos.net.flow.impl:org.onlab.onos.net.trivial.*:org.onlab.onos.net.*.impl:org.onlab.onos.cluster:org.onlab.onos.event.impl:org.onlab.onos.store.*
</packages>
</group>
<group>