Added copyrights to the utils code
diff --git a/utils/misc/src/main/java/org/onlab/metrics/EventMetric.java b/utils/misc/src/main/java/org/onlab/metrics/EventMetric.java
index 464a123..6cf8eff 100644
--- a/utils/misc/src/main/java/org/onlab/metrics/EventMetric.java
+++ b/utils/misc/src/main/java/org/onlab/metrics/EventMetric.java
@@ -1,3 +1,21 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you 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.onlab.metrics;
import com.codahale.metrics.Gauge;
diff --git a/utils/misc/src/main/java/org/onlab/metrics/MetricsComponent.java b/utils/misc/src/main/java/org/onlab/metrics/MetricsComponent.java
index 36064e4..cfe5437 100644
--- a/utils/misc/src/main/java/org/onlab/metrics/MetricsComponent.java
+++ b/utils/misc/src/main/java/org/onlab/metrics/MetricsComponent.java
@@ -1,3 +1,21 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you 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.onlab.metrics;
import java.util.concurrent.ConcurrentHashMap;
diff --git a/utils/misc/src/main/java/org/onlab/metrics/MetricsComponentRegistry.java b/utils/misc/src/main/java/org/onlab/metrics/MetricsComponentRegistry.java
index a28ddc8..53ac3dc 100644
--- a/utils/misc/src/main/java/org/onlab/metrics/MetricsComponentRegistry.java
+++ b/utils/misc/src/main/java/org/onlab/metrics/MetricsComponentRegistry.java
@@ -1,3 +1,21 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you 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.onlab.metrics;
/**
diff --git a/utils/misc/src/main/java/org/onlab/metrics/MetricsFeature.java b/utils/misc/src/main/java/org/onlab/metrics/MetricsFeature.java
index 204f562..95498c4 100644
--- a/utils/misc/src/main/java/org/onlab/metrics/MetricsFeature.java
+++ b/utils/misc/src/main/java/org/onlab/metrics/MetricsFeature.java
@@ -1,3 +1,21 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you 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.onlab.metrics;
/**
diff --git a/utils/misc/src/main/java/org/onlab/metrics/MetricsManager.java b/utils/misc/src/main/java/org/onlab/metrics/MetricsManager.java
index 8d5f919..95e3635 100644
--- a/utils/misc/src/main/java/org/onlab/metrics/MetricsManager.java
+++ b/utils/misc/src/main/java/org/onlab/metrics/MetricsManager.java
@@ -1,3 +1,21 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you 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.onlab.metrics;
import java.util.Map;
diff --git a/utils/misc/src/main/java/org/onlab/metrics/MetricsService.java b/utils/misc/src/main/java/org/onlab/metrics/MetricsService.java
index 9e9dfa0..d2e8723 100644
--- a/utils/misc/src/main/java/org/onlab/metrics/MetricsService.java
+++ b/utils/misc/src/main/java/org/onlab/metrics/MetricsService.java
@@ -1,3 +1,21 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you 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.onlab.metrics;
import java.util.Map;
diff --git a/utils/misc/src/main/java/org/onlab/metrics/package-info.java b/utils/misc/src/main/java/org/onlab/metrics/package-info.java
index 48151d4..dbf9224 100644
--- a/utils/misc/src/main/java/org/onlab/metrics/package-info.java
+++ b/utils/misc/src/main/java/org/onlab/metrics/package-info.java
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you 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.
+ */
+
/**
* Misc utils for various performance metrics.
*/