Added application ID store; both trivial and distributed variants.
diff --git a/core/net/src/main/java/org/onlab/onos/core/impl/CoreManager.java b/core/net/src/main/java/org/onlab/onos/core/impl/CoreManager.java
new file mode 100644
index 0000000..907466f
--- /dev/null
+++ b/core/net/src/main/java/org/onlab/onos/core/impl/CoreManager.java
@@ -0,0 +1,62 @@
+package org.onlab.onos.core.impl;
+
+import org.apache.felix.scr.annotations.Activate;
+import org.apache.felix.scr.annotations.Component;
+import org.apache.felix.scr.annotations.Reference;
+import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.apache.felix.scr.annotations.Service;
+import org.onlab.onos.core.ApplicationId;
+import org.onlab.onos.core.ApplicationIdStore;
+import org.onlab.onos.core.CoreService;
+import org.onlab.onos.core.Version;
+import org.onlab.util.Tools;
+
+import java.io.File;
+import java.util.List;
+import java.util.Set;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+
+/**
+ * Core service implementation.
+ */
+@Component
+@Service
+public class CoreManager implements CoreService {
+
+    private static final File VERSION_FILE = new File("../VERSION");
+    private static Version version = Version.version("1.0.0-SNAPSHOT");
+
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected ApplicationIdStore applicationIdStore;
+
+    @Activate
+    public void activate() {
+        List<String> versionLines = Tools.slurp(VERSION_FILE);
+        if (versionLines != null && !versionLines.isEmpty()) {
+            version = Version.version(versionLines.get(0));
+        }
+    }
+
+    @Override
+    public Version version() {
+        return version;
+    }
+
+    @Override
+    public Set<ApplicationId> getAppIds() {
+        return applicationIdStore.getAppIds();
+    }
+
+    @Override
+    public ApplicationId getAppId(Short id) {
+        return applicationIdStore.getAppId(id);
+    }
+
+    @Override
+    public ApplicationId registerApplication(String name) {
+        checkNotNull(name, "Application ID cannot be null");
+        return applicationIdStore.registerApplication(name);
+    }
+
+}
diff --git a/core/net/src/main/java/org/onlab/onos/impl/MetricsManagerComponent.java b/core/net/src/main/java/org/onlab/onos/core/impl/MetricsManagerComponent.java
similarity index 93%
rename from core/net/src/main/java/org/onlab/onos/impl/MetricsManagerComponent.java
rename to core/net/src/main/java/org/onlab/onos/core/impl/MetricsManagerComponent.java
index de47635..66608f2 100644
--- a/core/net/src/main/java/org/onlab/onos/impl/MetricsManagerComponent.java
+++ b/core/net/src/main/java/org/onlab/onos/core/impl/MetricsManagerComponent.java
@@ -1,4 +1,4 @@
-package org.onlab.onos.impl;
+package org.onlab.onos.core.impl;
 
 import org.apache.felix.scr.annotations.Activate;
 import org.apache.felix.scr.annotations.Component;
diff --git a/core/net/src/main/java/org/onlab/onos/impl/package-info.java b/core/net/src/main/java/org/onlab/onos/core/impl/package-info.java
similarity index 62%
rename from core/net/src/main/java/org/onlab/onos/impl/package-info.java
rename to core/net/src/main/java/org/onlab/onos/core/impl/package-info.java
index 2bf17b3..8a501e3 100644
--- a/core/net/src/main/java/org/onlab/onos/impl/package-info.java
+++ b/core/net/src/main/java/org/onlab/onos/core/impl/package-info.java
@@ -1,4 +1,4 @@
 /**
  * Miscellaneous core system implementations.
  */
-package org.onlab.onos.impl;
\ No newline at end of file
+package org.onlab.onos.core.impl;
\ No newline at end of file
diff --git a/core/net/src/main/java/org/onlab/onos/impl/CoreManager.java b/core/net/src/main/java/org/onlab/onos/impl/CoreManager.java
deleted file mode 100644
index da1f8c9..0000000
--- a/core/net/src/main/java/org/onlab/onos/impl/CoreManager.java
+++ /dev/null
@@ -1,64 +0,0 @@
-package org.onlab.onos.impl;
-
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Service;
-import org.onlab.onos.ApplicationId;
-import org.onlab.onos.CoreService;
-import org.onlab.onos.Version;
-import org.onlab.util.Tools;
-
-import java.io.File;
-import java.util.List;
-import java.util.Map;
-import java.util.concurrent.ConcurrentHashMap;
-import java.util.concurrent.atomic.AtomicInteger;
-
-/**
- * Core service implementation.
- */
-@Component
-@Service
-public class CoreManager implements CoreService {
-
-    private static final AtomicInteger ID_DISPENSER = new AtomicInteger(1);
-
-    private static final File VERSION_FILE = new File("../VERSION");
-    private static Version version = Version.version("1.0.0-SNAPSHOT");
-
-    private final Map<Short, DefaultApplicationId> appIds = new ConcurrentHashMap<>();
-    private final Map<String, DefaultApplicationId> appIdsByName = new ConcurrentHashMap<>();
-
-    // TODO: work in progress
-
-    @Activate
-    public void activate() {
-        List<String> versionLines = Tools.slurp(VERSION_FILE);
-        if (versionLines != null && !versionLines.isEmpty()) {
-            version = Version.version(versionLines.get(0));
-        }
-    }
-
-    @Override
-    public Version version() {
-        return version;
-    }
-
-    @Override
-    public ApplicationId getAppId(Short id) {
-        return appIds.get(id);
-    }
-
-    @Override
-    public ApplicationId registerApplication(String name) {
-        DefaultApplicationId appId = appIdsByName.get(name);
-        if (appId == null) {
-            short id = (short) ID_DISPENSER.getAndIncrement();
-            appId = new DefaultApplicationId(id, name);
-            appIds.put(id, appId);
-            appIdsByName.put(name, appId);
-        }
-        return appId;
-    }
-
-}
diff --git a/core/net/src/main/java/org/onlab/onos/impl/DefaultApplicationId.java b/core/net/src/main/java/org/onlab/onos/impl/DefaultApplicationId.java
deleted file mode 100644
index eed5fb0..0000000
--- a/core/net/src/main/java/org/onlab/onos/impl/DefaultApplicationId.java
+++ /dev/null
@@ -1,55 +0,0 @@
-package org.onlab.onos.impl;
-
-import org.onlab.onos.ApplicationId;
-
-import java.util.Objects;
-
-import static com.google.common.base.MoreObjects.toStringHelper;
-
-/**
- * Application id generator class.
- */
-public class DefaultApplicationId implements ApplicationId {
-
-    private final short id;
-    private final String name;
-
-    // Ban public construction
-    protected DefaultApplicationId(Short id, String identifier) {
-        this.id = id;
-        this.name = identifier;
-    }
-
-    @Override
-    public short id() {
-        return id;
-    }
-
-    @Override
-    public String name() {
-        return name;
-    }
-
-    @Override
-    public int hashCode() {
-        return Objects.hash(id);
-    }
-
-    @Override
-    public boolean equals(Object obj) {
-        if (this == obj) {
-            return true;
-        }
-        if (obj instanceof DefaultApplicationId) {
-            DefaultApplicationId other = (DefaultApplicationId) obj;
-            return Objects.equals(this.id, other.id);
-        }
-        return false;
-    }
-
-    @Override
-    public String toString() {
-        return toStringHelper(this).add("id", id).add("name", name).toString();
-    }
-
-}
diff --git a/core/net/src/main/java/org/onlab/onos/net/flow/impl/FlowRuleManager.java b/core/net/src/main/java/org/onlab/onos/net/flow/impl/FlowRuleManager.java
index 0c07bab..aef5831 100644
--- a/core/net/src/main/java/org/onlab/onos/net/flow/impl/FlowRuleManager.java
+++ b/core/net/src/main/java/org/onlab/onos/net/flow/impl/FlowRuleManager.java
@@ -22,7 +22,7 @@
 import org.apache.felix.scr.annotations.Reference;
 import org.apache.felix.scr.annotations.ReferenceCardinality;
 import org.apache.felix.scr.annotations.Service;
-import org.onlab.onos.ApplicationId;
+import org.onlab.onos.core.ApplicationId;
 import org.onlab.onos.event.AbstractListenerRegistry;
 import org.onlab.onos.event.EventDeliveryService;
 import org.onlab.onos.net.Device;
diff --git a/core/net/src/main/java/org/onlab/onos/net/intent/impl/LinkCollectionIntentInstaller.java b/core/net/src/main/java/org/onlab/onos/net/intent/impl/LinkCollectionIntentInstaller.java
index 2983a68..93c6345 100644
--- a/core/net/src/main/java/org/onlab/onos/net/intent/impl/LinkCollectionIntentInstaller.java
+++ b/core/net/src/main/java/org/onlab/onos/net/intent/impl/LinkCollectionIntentInstaller.java
@@ -9,8 +9,8 @@
 import org.apache.felix.scr.annotations.Deactivate;
 import org.apache.felix.scr.annotations.Reference;
 import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.onlab.onos.ApplicationId;
-import org.onlab.onos.CoreService;
+import org.onlab.onos.core.ApplicationId;
+import org.onlab.onos.core.CoreService;
 import org.onlab.onos.net.DeviceId;
 import org.onlab.onos.net.Link;
 import org.onlab.onos.net.PortNumber;
diff --git a/core/net/src/main/java/org/onlab/onos/net/intent/impl/OpticalConnectivityIntentCompiler.java b/core/net/src/main/java/org/onlab/onos/net/intent/impl/OpticalConnectivityIntentCompiler.java
index 8fcf75b..c19bba0 100644
--- a/core/net/src/main/java/org/onlab/onos/net/intent/impl/OpticalConnectivityIntentCompiler.java
+++ b/core/net/src/main/java/org/onlab/onos/net/intent/impl/OpticalConnectivityIntentCompiler.java
@@ -12,7 +12,7 @@
 import org.apache.felix.scr.annotations.Deactivate;
 import org.apache.felix.scr.annotations.Reference;
 import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.onlab.onos.CoreService;
+import org.onlab.onos.core.CoreService;
 import org.onlab.onos.net.ConnectPoint;
 import org.onlab.onos.net.Link;
 import org.onlab.onos.net.Path;
diff --git a/core/net/src/main/java/org/onlab/onos/net/intent/impl/OpticalPathIntentInstaller.java b/core/net/src/main/java/org/onlab/onos/net/intent/impl/OpticalPathIntentInstaller.java
index 5557b05..a504992 100644
--- a/core/net/src/main/java/org/onlab/onos/net/intent/impl/OpticalPathIntentInstaller.java
+++ b/core/net/src/main/java/org/onlab/onos/net/intent/impl/OpticalPathIntentInstaller.java
@@ -10,8 +10,8 @@
 import org.apache.felix.scr.annotations.Deactivate;
 import org.apache.felix.scr.annotations.Reference;
 import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.onlab.onos.ApplicationId;
-import org.onlab.onos.CoreService;
+import org.onlab.onos.core.ApplicationId;
+import org.onlab.onos.core.CoreService;
 import org.onlab.onos.net.ConnectPoint;
 import org.onlab.onos.net.Link;
 import org.onlab.onos.net.flow.DefaultFlowRule;
diff --git a/core/net/src/main/java/org/onlab/onos/net/intent/impl/PathIntentInstaller.java b/core/net/src/main/java/org/onlab/onos/net/intent/impl/PathIntentInstaller.java
index a7381b7..84e2c7c 100644
--- a/core/net/src/main/java/org/onlab/onos/net/intent/impl/PathIntentInstaller.java
+++ b/core/net/src/main/java/org/onlab/onos/net/intent/impl/PathIntentInstaller.java
@@ -11,8 +11,8 @@
 import org.apache.felix.scr.annotations.Deactivate;
 import org.apache.felix.scr.annotations.Reference;
 import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.onlab.onos.ApplicationId;
-import org.onlab.onos.CoreService;
+import org.onlab.onos.core.ApplicationId;
+import org.onlab.onos.core.CoreService;
 import org.onlab.onos.net.ConnectPoint;
 import org.onlab.onos.net.Link;
 import org.onlab.onos.net.flow.DefaultFlowRule;
diff --git a/core/net/src/test/java/org/onlab/onos/net/flow/impl/FlowRuleManagerTest.java b/core/net/src/test/java/org/onlab/onos/net/flow/impl/FlowRuleManagerTest.java
index 85ceb3f..59f0595 100644
--- a/core/net/src/test/java/org/onlab/onos/net/flow/impl/FlowRuleManagerTest.java
+++ b/core/net/src/test/java/org/onlab/onos/net/flow/impl/FlowRuleManagerTest.java
@@ -1,35 +1,16 @@
 package org.onlab.onos.net.flow.impl;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertTrue;
-import static org.junit.Assert.fail;
-import static org.onlab.onos.net.flow.FlowRuleEvent.Type.RULE_ADDED;
-import static org.onlab.onos.net.flow.FlowRuleEvent.Type.RULE_ADD_REQUESTED;
-import static org.onlab.onos.net.flow.FlowRuleEvent.Type.RULE_REMOVED;
-import static org.onlab.onos.net.flow.FlowRuleEvent.Type.RULE_REMOVE_REQUESTED;
-import static org.onlab.onos.net.flow.FlowRuleEvent.Type.RULE_UPDATED;
-
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.Collections;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-import java.util.Set;
-import java.util.concurrent.ExecutionException;
-import java.util.concurrent.Executor;
-import java.util.concurrent.Future;
-import java.util.concurrent.TimeUnit;
-import java.util.concurrent.TimeoutException;
-
+import com.google.common.collect.ImmutableList;
+import com.google.common.collect.ImmutableMap;
+import com.google.common.collect.Lists;
+import com.google.common.collect.Sets;
+import com.google.common.util.concurrent.ListenableFuture;
 import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
-import org.onlab.onos.ApplicationId;
+import org.onlab.onos.core.ApplicationId;
+import org.onlab.onos.core.DefaultApplicationId;
 import org.onlab.onos.event.impl.TestEventDispatcher;
-import org.onlab.onos.impl.DefaultApplicationId;
 import org.onlab.onos.net.DefaultDevice;
 import org.onlab.onos.net.Device;
 import org.onlab.onos.net.Device.Type;
@@ -63,11 +44,21 @@
 import org.onlab.onos.net.provider.ProviderId;
 import org.onlab.onos.store.trivial.impl.SimpleFlowRuleStore;
 
-import com.google.common.collect.ImmutableList;
-import com.google.common.collect.ImmutableMap;
-import com.google.common.collect.Lists;
-import com.google.common.collect.Sets;
-import com.google.common.util.concurrent.ListenableFuture;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.Executor;
+import java.util.concurrent.Future;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.TimeoutException;
+
+import static org.junit.Assert.*;
+import static org.onlab.onos.net.flow.FlowRuleEvent.Type.*;
 
 /**
  * Test codifying the flow rule service & flow rule provider service contracts.
@@ -75,7 +66,6 @@
 public class FlowRuleManagerTest {
 
 
-
     private static final ProviderId PID = new ProviderId("of", "foo");
     private static final DeviceId DID = DeviceId.deviceId("of:001");
     private static final int TIMEOUT = 10;
@@ -106,14 +96,14 @@
         providerService = registry.register(provider);
         appId = new TestApplicationId((short) 0, "FlowRuleManagerTest");
         assertTrue("provider should be registered",
-                registry.getProviders().contains(provider.id()));
+                   registry.getProviders().contains(provider.id()));
     }
 
     @After
     public void tearDown() {
         registry.unregister(provider);
         assertFalse("provider should not be registered",
-                registry.getProviders().contains(provider.id()));
+                    registry.getProviders().contains(provider.id()));
         service.removeListener(listener);
         mgr.deactivate();
         mgr.eventDispatcher = null;
@@ -135,7 +125,7 @@
         return rule;
     }
 
-    private void validateEvents(FlowRuleEvent.Type ... events) {
+    private void validateEvents(FlowRuleEvent.Type... events) {
         if (events == null) {
             assertTrue("events generated", listener.events.isEmpty());
         }
@@ -148,7 +138,7 @@
         }
 
         assertEquals("mispredicted number of events",
-                events.length, listener.events.size());
+                     events.length, listener.events.size());
 
         listener.events.clear();
     }
@@ -156,10 +146,11 @@
     private int flowCount() {
         return Sets.newHashSet(service.getFlowEntries(DID)).size();
     }
+
     @Test
     public void getFlowEntries() {
         assertTrue("store should be empty",
-                Sets.newHashSet(service.getFlowEntries(DID)).isEmpty());
+                   Sets.newHashSet(service.getFlowEntries(DID)).isEmpty());
         FlowRule f1 = addFlowRule(1);
         FlowRule f2 = addFlowRule(2);
 
@@ -206,9 +197,9 @@
         assertEquals("3 rules should exist", 3, flowCount());
         assertTrue("Entries should be pending add.",
                    validateState(ImmutableMap.of(
-                                   r1, FlowEntryState.PENDING_ADD,
-                                   r2, FlowEntryState.PENDING_ADD,
-                                   r3, FlowEntryState.PENDING_ADD)));
+                           r1, FlowEntryState.PENDING_ADD,
+                           r2, FlowEntryState.PENDING_ADD,
+                           r3, FlowEntryState.PENDING_ADD)));
     }
 
     @Test
@@ -231,9 +222,9 @@
         assertEquals("3 rule should exist", 3, flowCount());
         assertTrue("Entries should be pending remove.",
                    validateState(ImmutableMap.of(
-                                 f1, FlowEntryState.PENDING_REMOVE,
-                                 f2, FlowEntryState.PENDING_REMOVE,
-                                 f3, FlowEntryState.ADDED)));
+                           f1, FlowEntryState.PENDING_REMOVE,
+                           f2, FlowEntryState.PENDING_REMOVE,
+                           f3, FlowEntryState.ADDED)));
 
         mgr.removeFlowRules(f1);
         assertEquals("3 rule should still exist", 3, flowCount());
@@ -283,10 +274,10 @@
         providerService.pushFlowMetrics(DID, Lists.newArrayList(fe1, fe2));
 
         assertTrue("Entries should be added.",
-                validateState(ImmutableMap.of(
-                        f1, FlowEntryState.ADDED,
-                        f2, FlowEntryState.ADDED,
-                        f3, FlowEntryState.PENDING_ADD)));
+                   validateState(ImmutableMap.of(
+                           f1, FlowEntryState.ADDED,
+                           f2, FlowEntryState.ADDED,
+                           f3, FlowEntryState.PENDING_ADD)));
 
         validateEvents(RULE_ADD_REQUESTED, RULE_ADD_REQUESTED, RULE_ADD_REQUESTED,
                        RULE_ADDED, RULE_ADDED);
@@ -361,8 +352,8 @@
         //only check that we are in pending remove. Events and actual remove state will
         // be set by flowRemoved call.
         validateState(ImmutableMap.of(
-                    f1, FlowEntryState.PENDING_REMOVE,
-                    f2, FlowEntryState.PENDING_REMOVE));
+                f1, FlowEntryState.PENDING_REMOVE,
+                f2, FlowEntryState.PENDING_REMOVE));
     }
 
     @Test
@@ -387,8 +378,8 @@
         Future<CompletedBatchOperation> future = mgr.applyBatch(fbo);
         assertTrue("Entries in wrong state",
                    validateState(ImmutableMap.of(
-                               f1, FlowEntryState.PENDING_REMOVE,
-                               f2, FlowEntryState.PENDING_ADD)));
+                           f1, FlowEntryState.PENDING_REMOVE,
+                           f2, FlowEntryState.PENDING_ADD)));
         CompletedBatchOperation completed = null;
         try {
             completed = future.get();
@@ -410,15 +401,15 @@
         mgr.applyFlowRules(f1);
 
         assertTrue("Entries in wrong state",
-                validateState(ImmutableMap.of(
-                            f1, FlowEntryState.PENDING_ADD)));
+                   validateState(ImmutableMap.of(
+                           f1, FlowEntryState.PENDING_ADD)));
 
         FlowEntry fe1 = new DefaultFlowEntry(f1);
         providerService.pushFlowMetrics(DID, Collections.<FlowEntry>singletonList(fe1));
 
         assertTrue("Entries in wrong state",
-                validateState(ImmutableMap.of(
-                            f1, FlowEntryState.ADDED)));
+                   validateState(ImmutableMap.of(
+                           f1, FlowEntryState.ADDED)));
 
 
         FlowRuleBatchEntry fbe1 = new FlowRuleBatchEntry(
@@ -441,14 +432,13 @@
          */
         assertTrue("Entries in wrong state",
                    validateState(ImmutableMap.of(
-                               f2, FlowEntryState.PENDING_REMOVE,
-                               f1, FlowEntryState.PENDING_ADD)));
+                           f2, FlowEntryState.PENDING_REMOVE,
+                           f1, FlowEntryState.PENDING_ADD)));
 
 
     }
 
 
-
     private static class TestListener implements FlowRuleListener {
         final List<FlowRuleEvent> events = new ArrayList<>();
 
diff --git a/core/net/src/test/java/org/onlab/onos/net/intent/TestHostToHostIntent.java b/core/net/src/test/java/org/onlab/onos/net/intent/TestHostToHostIntent.java
index 2b56e88..270ffd6 100644
--- a/core/net/src/test/java/org/onlab/onos/net/intent/TestHostToHostIntent.java
+++ b/core/net/src/test/java/org/onlab/onos/net/intent/TestHostToHostIntent.java
@@ -1,7 +1,7 @@
 package org.onlab.onos.net.intent;
 
 import org.junit.Test;
-import org.onlab.onos.ApplicationId;
+import org.onlab.onos.core.ApplicationId;
 import org.onlab.onos.TestApplicationId;
 import org.onlab.onos.net.HostId;
 import org.onlab.onos.net.flow.TrafficSelector;
diff --git a/core/net/src/test/java/org/onlab/onos/net/intent/TestLinkCollectionIntent.java b/core/net/src/test/java/org/onlab/onos/net/intent/TestLinkCollectionIntent.java
index 42b5b28..8618aa0 100644
--- a/core/net/src/test/java/org/onlab/onos/net/intent/TestLinkCollectionIntent.java
+++ b/core/net/src/test/java/org/onlab/onos/net/intent/TestLinkCollectionIntent.java
@@ -12,7 +12,7 @@
 
 import org.junit.Before;
 import org.junit.Test;
-import org.onlab.onos.ApplicationId;
+import org.onlab.onos.core.ApplicationId;
 import org.onlab.onos.TestApplicationId;
 import org.onlab.onos.net.ConnectPoint;
 import org.onlab.onos.net.DeviceId;
diff --git a/core/net/src/test/java/org/onlab/onos/net/intent/TestMultiPointToSinglePointIntent.java b/core/net/src/test/java/org/onlab/onos/net/intent/TestMultiPointToSinglePointIntent.java
index 0e4f706..4420578 100644
--- a/core/net/src/test/java/org/onlab/onos/net/intent/TestMultiPointToSinglePointIntent.java
+++ b/core/net/src/test/java/org/onlab/onos/net/intent/TestMultiPointToSinglePointIntent.java
@@ -2,7 +2,7 @@
 
 import org.junit.Before;
 import org.junit.Test;
-import org.onlab.onos.ApplicationId;
+import org.onlab.onos.core.ApplicationId;
 import org.onlab.onos.TestApplicationId;
 import org.onlab.onos.net.ConnectPoint;
 import org.onlab.onos.net.flow.TrafficSelector;
diff --git a/core/net/src/test/java/org/onlab/onos/net/intent/TestPointToPointIntent.java b/core/net/src/test/java/org/onlab/onos/net/intent/TestPointToPointIntent.java
index e34d7ce..904e013 100644
--- a/core/net/src/test/java/org/onlab/onos/net/intent/TestPointToPointIntent.java
+++ b/core/net/src/test/java/org/onlab/onos/net/intent/TestPointToPointIntent.java
@@ -1,7 +1,7 @@
 package org.onlab.onos.net.intent;
 
 import org.junit.Test;
-import org.onlab.onos.ApplicationId;
+import org.onlab.onos.core.ApplicationId;
 import org.onlab.onos.TestApplicationId;
 import org.onlab.onos.net.ConnectPoint;
 import org.onlab.onos.net.flow.TrafficSelector;
diff --git a/core/net/src/test/java/org/onlab/onos/net/intent/impl/TestHostToHostIntentCompiler.java b/core/net/src/test/java/org/onlab/onos/net/intent/impl/TestHostToHostIntentCompiler.java
index e853a29..06d0f11 100644
--- a/core/net/src/test/java/org/onlab/onos/net/intent/impl/TestHostToHostIntentCompiler.java
+++ b/core/net/src/test/java/org/onlab/onos/net/intent/impl/TestHostToHostIntentCompiler.java
@@ -3,7 +3,7 @@
 import org.hamcrest.Matchers;
 import org.junit.Before;
 import org.junit.Test;
-import org.onlab.onos.ApplicationId;
+import org.onlab.onos.core.ApplicationId;
 import org.onlab.onos.TestApplicationId;
 import org.onlab.onos.net.Host;
 import org.onlab.onos.net.HostId;
diff --git a/core/net/src/test/java/org/onlab/onos/net/intent/impl/TestMultiPointToSinglePointIntentCompiler.java b/core/net/src/test/java/org/onlab/onos/net/intent/impl/TestMultiPointToSinglePointIntentCompiler.java
index 1c78e26..276d07f 100644
--- a/core/net/src/test/java/org/onlab/onos/net/intent/impl/TestMultiPointToSinglePointIntentCompiler.java
+++ b/core/net/src/test/java/org/onlab/onos/net/intent/impl/TestMultiPointToSinglePointIntentCompiler.java
@@ -2,7 +2,7 @@
 
 import org.hamcrest.Matchers;
 import org.junit.Test;
-import org.onlab.onos.ApplicationId;
+import org.onlab.onos.core.ApplicationId;
 import org.onlab.onos.TestApplicationId;
 import org.onlab.onos.net.ConnectPoint;
 import org.onlab.onos.net.ElementId;
diff --git a/core/net/src/test/java/org/onlab/onos/net/intent/impl/TestPointToPointIntentCompiler.java b/core/net/src/test/java/org/onlab/onos/net/intent/impl/TestPointToPointIntentCompiler.java
index 90b7155..b04bc29 100644
--- a/core/net/src/test/java/org/onlab/onos/net/intent/impl/TestPointToPointIntentCompiler.java
+++ b/core/net/src/test/java/org/onlab/onos/net/intent/impl/TestPointToPointIntentCompiler.java
@@ -2,7 +2,7 @@
 
 import org.hamcrest.Matchers;
 //import org.junit.Test;
-import org.onlab.onos.ApplicationId;
+import org.onlab.onos.core.ApplicationId;
 import org.onlab.onos.TestApplicationId;
 import org.onlab.onos.net.flow.TrafficSelector;
 import org.onlab.onos.net.flow.TrafficTreatment;