diff --git a/src/main/java/org/onosproject/segmentrouting/IcmpHandler.java b/src/main/java/org/onosproject/segmentrouting/IcmpHandler.java
index 45fa794..3f333a4 100644
--- a/src/main/java/org/onosproject/segmentrouting/IcmpHandler.java
+++ b/src/main/java/org/onosproject/segmentrouting/IcmpHandler.java
@@ -58,7 +58,7 @@
      * If it is an ICMP packet to unknown host in a subnet, then sends an ARP request
      * to the subnet.
      *
-     * @param pkt
+     * @param pkt inbound packet
      */
     public void processPacketIn(InboundPacket pkt) {
 
diff --git a/src/main/java/org/onosproject/segmentrouting/RoutingRulePopulator.java b/src/main/java/org/onosproject/segmentrouting/RoutingRulePopulator.java
index 337b1f3..e5cf69f 100644
--- a/src/main/java/org/onosproject/segmentrouting/RoutingRulePopulator.java
+++ b/src/main/java/org/onosproject/segmentrouting/RoutingRulePopulator.java
@@ -53,7 +53,7 @@
     /**
      * Creates a RoutingRulePopulator object.
      *
-     * @param srManager
+     * @param srManager segment routing manager reference
      */
     public RoutingRulePopulator(SegmentRoutingManager srManager) {
         this.srManager = srManager;
diff --git a/src/main/java/org/onosproject/segmentrouting/config/package-info.java b/src/main/java/org/onosproject/segmentrouting/config/package-info.java
new file mode 100644
index 0000000..fdae9c9
--- /dev/null
+++ b/src/main/java/org/onosproject/segmentrouting/config/package-info.java
@@ -0,0 +1,20 @@
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * Segment routing network configuration mechanism.
+ */
+package org.onosproject.segmentrouting.config;
\ No newline at end of file
diff --git a/src/main/java/org/onosproject/segmentrouting/grouphandler/package-info.java b/src/main/java/org/onosproject/segmentrouting/grouphandler/package-info.java
new file mode 100644
index 0000000..1a8d595
--- /dev/null
+++ b/src/main/java/org/onosproject/segmentrouting/grouphandler/package-info.java
@@ -0,0 +1,20 @@
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * Segment routing group handling.
+ */
+package org.onosproject.segmentrouting.grouphandler;
\ No newline at end of file
diff --git a/src/main/java/org/onosproject/segmentrouting/package-info.java b/src/main/java/org/onosproject/segmentrouting/package-info.java
new file mode 100644
index 0000000..7b81db8
--- /dev/null
+++ b/src/main/java/org/onosproject/segmentrouting/package-info.java
@@ -0,0 +1,20 @@
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * Segment routing application components.
+ */
+package org.onosproject.segmentrouting;
\ No newline at end of file