Initial import of CFM and SOAM api

Change-Id: Icf5cc2d5fb34b75460e80e8cced0d70265bcd33b
diff --git a/incubator/api/src/main/java/org/onosproject/incubator/net/l2monitoring/cfm/service/CfmConfigException.java b/incubator/api/src/main/java/org/onosproject/incubator/net/l2monitoring/cfm/service/CfmConfigException.java
new file mode 100644
index 0000000..6d0d057
--- /dev/null
+++ b/incubator/api/src/main/java/org/onosproject/incubator/net/l2monitoring/cfm/service/CfmConfigException.java
@@ -0,0 +1,36 @@
+/*
+ * Copyright 2016-present Open Networking Foundation
+ *
+ * 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.
+ */
+package org.onosproject.incubator.net.l2monitoring.cfm.service;
+
+/**
+ * Exception for configuration related to Connectivity Fault Management.
+ */
+public class CfmConfigException extends Throwable {
+
+    private static final long serialVersionUID = 1L;
+
+    public CfmConfigException(String message) {
+        super(message);
+    }
+
+    public CfmConfigException(Throwable t) {
+        super(t);
+    }
+
+    public CfmConfigException(String message, Throwable t) {
+        super(message, t);
+    }
+}