Fixing Javadoc errors

Change-Id: I72b9d49e052316cbbbef343d367ffffe13cd4e56
diff --git a/apps/acl/src/main/java/org/onosproject/acl/AclWebResource.java b/apps/acl/src/main/java/org/onosproject/acl/AclWebResource.java
index e792efb..9ec4c88 100644
--- a/apps/acl/src/main/java/org/onosproject/acl/AclWebResource.java
+++ b/apps/acl/src/main/java/org/onosproject/acl/AclWebResource.java
@@ -98,6 +98,7 @@
      *
      * @param stream JSON data describing the rule
      * @return 200 OK
+     * @throws URISyntaxException uri syntax exception
      */
     @POST
     @Consumes(MediaType.APPLICATION_JSON)
diff --git a/apps/dhcp/src/main/java/org/onosproject/dhcp/DhcpStore.java b/apps/dhcp/src/main/java/org/onosproject/dhcp/DhcpStore.java
index 5615af1..e263b3a 100644
--- a/apps/dhcp/src/main/java/org/onosproject/dhcp/DhcpStore.java
+++ b/apps/dhcp/src/main/java/org/onosproject/dhcp/DhcpStore.java
@@ -64,6 +64,7 @@
      * Releases the IP assigned to a Mac ID into the free pool.
      *
      * @param hostId the host ID for which the mapping needs to be changed
+     * @return released ip
      */
     Ip4Address releaseIP(HostId hostId);
 
diff --git a/apps/flowanalyzer/src/main/java/org/onosproject/flowanalyzer/FlowAnalyzer.java b/apps/flowanalyzer/src/main/java/org/onosproject/flowanalyzer/FlowAnalyzer.java
index 6aaaaee..86ab37f 100644
--- a/apps/flowanalyzer/src/main/java/org/onosproject/flowanalyzer/FlowAnalyzer.java
+++ b/apps/flowanalyzer/src/main/java/org/onosproject/flowanalyzer/FlowAnalyzer.java
@@ -85,6 +85,8 @@
      * the network. The possible states are: Cleared (implying that the entry leads to
      * a host), Cycle (implying that it is part of cycle), and Black Hole (implying
      * that the entry does not lead to a single host).
+     *
+     * @return result string
      */
     public String analyze() {
         graph = topologyService.getGraph(topologyService.currentTopology());
diff --git a/apps/segmentrouting/src/main/java/org/onosproject/segmentrouting/DeviceConfiguration.java b/apps/segmentrouting/src/main/java/org/onosproject/segmentrouting/DeviceConfiguration.java
index 8fdf81a..b1c6a6e 100644
--- a/apps/segmentrouting/src/main/java/org/onosproject/segmentrouting/DeviceConfiguration.java
+++ b/apps/segmentrouting/src/main/java/org/onosproject/segmentrouting/DeviceConfiguration.java
@@ -67,6 +67,8 @@
     /**
      * Constructor. Reads all the configuration for all devices of type
      * Segment Router and organizes into various maps for easier access.
+     *
+     * @param cfgService config service
      */
     public DeviceConfiguration(NetworkConfigRegistry cfgService) {
         // Read config from device subject, excluding gatewayIps and subnets.