[WIP] Upgrade ONOS to karaf version 4.2.1

Change-Id: I7cd40c995bdf1c80f94b1895fb3344e32404c7fa
diff --git a/apps/routing/common/src/main/java/org/onosproject/routing/impl/DirectHostManager.java b/apps/routing/common/src/main/java/org/onosproject/routing/impl/DirectHostManager.java
index 0cac220..da62a5b 100644
--- a/apps/routing/common/src/main/java/org/onosproject/routing/impl/DirectHostManager.java
+++ b/apps/routing/common/src/main/java/org/onosproject/routing/impl/DirectHostManager.java
@@ -18,18 +18,11 @@
 
 import com.google.common.cache.Cache;
 import com.google.common.cache.CacheBuilder;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Modified;
-import org.apache.felix.scr.annotations.Property;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
 import org.onlab.packet.EthType;
 import org.onlab.packet.Ethernet;
+import org.onlab.packet.IP;
 import org.onlab.packet.IPv4;
 import org.onlab.packet.IPv6;
-import org.onlab.packet.IP;
 import org.onlab.packet.IpAddress;
 import org.onlab.packet.MacAddress;
 import org.onlab.packet.VlanId;
@@ -37,8 +30,6 @@
 import org.onosproject.cfg.ComponentConfigService;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.core.CoreService;
-import org.onosproject.net.intf.Interface;
-import org.onosproject.net.intf.InterfaceService;
 import org.onosproject.net.ConnectPoint;
 import org.onosproject.net.Host;
 import org.onosproject.net.flow.DefaultTrafficSelector;
@@ -47,6 +38,8 @@
 import org.onosproject.net.host.HostEvent;
 import org.onosproject.net.host.HostListener;
 import org.onosproject.net.host.HostService;
+import org.onosproject.net.intf.Interface;
+import org.onosproject.net.intf.InterfaceService;
 import org.onosproject.net.packet.DefaultOutboundPacket;
 import org.onosproject.net.packet.OutboundPacket;
 import org.onosproject.net.packet.PacketContext;
@@ -54,6 +47,12 @@
 import org.onosproject.net.packet.PacketProcessor;
 import org.onosproject.net.packet.PacketService;
 import org.osgi.service.component.ComponentContext;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Modified;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -75,25 +74,25 @@
 
     private Logger log = LoggerFactory.getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected PacketService packetService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected InterfaceService interfaceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected HostService hostService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ComponentConfigService componentConfigService;
 
     private static final boolean DEFAULT_ENABLED = false;
 
-    @Property(name = "enabled", boolValue = DEFAULT_ENABLED,
-            label = "Enable reactive directly-connected host processing")
+    //@Property(name = "enabled", boolValue = DEFAULT_ENABLED,
+    //        label = "Enable reactive directly-connected host processing")
     private volatile boolean enabled = DEFAULT_ENABLED;
 
     private static final String APP_NAME = "org.onosproject.directhost";