diff --git a/incubator/api/src/test/java/org/onosproject/incubator/net/config/NetworkConfigServiceAdapter.java b/incubator/api/src/test/java/org/onosproject/incubator/net/config/NetworkConfigServiceAdapter.java
new file mode 100644
index 0000000..0e108c9
--- /dev/null
+++ b/incubator/api/src/test/java/org/onosproject/incubator/net/config/NetworkConfigServiceAdapter.java
@@ -0,0 +1,75 @@
+package org.onosproject.incubator.net.config;
+
+import com.fasterxml.jackson.databind.node.ObjectNode;
+
+import java.util.Set;
+
+/**
+ * Test adapter for network configuration service.
+ */
+public class NetworkConfigServiceAdapter implements NetworkConfigService {
+    @Override
+    public Set<Class> getSubjectClasses() {
+        return null;
+    }
+
+    @Override
+    public SubjectFactory getSubjectFactory(String subjectKey) {
+        return null;
+    }
+
+    @Override
+    public SubjectFactory getSubjectFactory(Class subjectClass) {
+        return null;
+    }
+
+    @Override
+    public Class<? extends Config> getConfigClass(String subjectKey, String configKey) {
+        return null;
+    }
+
+    @Override
+    public <S> Set<S> getSubjects(Class<S> subjectClass) {
+        return null;
+    }
+
+    @Override
+    public <S, C extends Config<S>> Set<S> getSubjects(Class<S> subjectClass, Class<C> configClass) {
+        return null;
+    }
+
+    @Override
+    public <S> Set<? extends Config<S>> getConfigs(S subject) {
+        return null;
+    }
+
+    @Override
+    public <S, C extends Config<S>> C getConfig(S subject, Class<C> configClass) {
+        return null;
+    }
+
+    @Override
+    public <S, C extends Config<S>> C addConfig(S subject, Class<C> configClass) {
+        return null;
+    }
+
+    @Override
+    public <S, C extends Config<S>> C applyConfig(S subject, Class<C> configClass, ObjectNode json) {
+        return null;
+    }
+
+    @Override
+    public <S, C extends Config<S>> void removeConfig(S subject, Class<C> configClass) {
+
+    }
+
+    @Override
+    public void addListener(NetworkConfigListener listener) {
+
+    }
+
+    @Override
+    public void removeListener(NetworkConfigListener listener) {
+
+    }
+}