add/update license headers
diff --git a/hyracks/hyracks-net/pom.xml b/hyracks/hyracks-net/pom.xml
index b82a88a..224afd1 100644
--- a/hyracks/hyracks-net/pom.xml
+++ b/hyracks/hyracks-net/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! 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 from
+ ! 
+ !     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.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <artifactId>hyracks-net</artifactId>
diff --git a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/buffers/IBufferAcceptor.java b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/buffers/IBufferAcceptor.java
index 26e335e..e6262ec 100644
--- a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/buffers/IBufferAcceptor.java
+++ b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/buffers/IBufferAcceptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * 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 from
diff --git a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/buffers/ICloseableBufferAcceptor.java b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/buffers/ICloseableBufferAcceptor.java
index 5e9bf02..2a2c39e 100644
--- a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/buffers/ICloseableBufferAcceptor.java
+++ b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/buffers/ICloseableBufferAcceptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * 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 from
diff --git a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/exceptions/NetException.java b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/exceptions/NetException.java
index ecd0373..4928255 100644
--- a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/exceptions/NetException.java
+++ b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/exceptions/NetException.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * 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 from
diff --git a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/ChannelControlBlock.java b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/ChannelControlBlock.java
index 3dec7e0..2e95cde 100644
--- a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/ChannelControlBlock.java
+++ b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/ChannelControlBlock.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * 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 from
diff --git a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/ChannelSet.java b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/ChannelSet.java
index 8fa99be..d59bfc4 100644
--- a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/ChannelSet.java
+++ b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/ChannelSet.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * 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 from
diff --git a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/IChannelOpenListener.java b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/IChannelOpenListener.java
index feb605f..c9c3d49 100644
--- a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/IChannelOpenListener.java
+++ b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/IChannelOpenListener.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * 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 from
diff --git a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/IChannelReadInterface.java b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/IChannelReadInterface.java
index 178ad78..2e961fd 100644
--- a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/IChannelReadInterface.java
+++ b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/IChannelReadInterface.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * 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 from
diff --git a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/IChannelWriteInterface.java b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/IChannelWriteInterface.java
index 8e71246..e2fb764 100644
--- a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/IChannelWriteInterface.java
+++ b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/IChannelWriteInterface.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * 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 from
diff --git a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/IEventCounter.java b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/IEventCounter.java
index 148078c..a56bed3 100644
--- a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/IEventCounter.java
+++ b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/IEventCounter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * 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 from
diff --git a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/MultiplexedConnection.java b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/MultiplexedConnection.java
index 27bd793..54a2641 100644
--- a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/MultiplexedConnection.java
+++ b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/MultiplexedConnection.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * 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 from
diff --git a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/MuxDemux.java b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/MuxDemux.java
index e4df6b9..7602071 100644
--- a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/MuxDemux.java
+++ b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/MuxDemux.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * 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 from
diff --git a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/MuxDemuxCommand.java b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/MuxDemuxCommand.java
index 4610170..efd945d 100644
--- a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/MuxDemuxCommand.java
+++ b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/MuxDemuxCommand.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * 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 from
+ * 
+ *     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 edu.uci.ics.hyracks.net.protocols.muxdemux;
 
 import java.nio.ByteBuffer;
diff --git a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/MuxDemuxPerformanceCounters.java b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/MuxDemuxPerformanceCounters.java
index 6bf21aa..c67ba27 100644
--- a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/MuxDemuxPerformanceCounters.java
+++ b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/MuxDemuxPerformanceCounters.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * 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 from
diff --git a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/tcp/ITCPConnectionEventListener.java b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/tcp/ITCPConnectionEventListener.java
index 79c21ee..083e8b6 100644
--- a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/tcp/ITCPConnectionEventListener.java
+++ b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/tcp/ITCPConnectionEventListener.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * 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 from
diff --git a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/tcp/ITCPConnectionListener.java b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/tcp/ITCPConnectionListener.java
index ead2a1f..ff38af5 100644
--- a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/tcp/ITCPConnectionListener.java
+++ b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/tcp/ITCPConnectionListener.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * 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 from
diff --git a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/tcp/TCPConnection.java b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/tcp/TCPConnection.java
index 210508b..8f3784b 100644
--- a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/tcp/TCPConnection.java
+++ b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/tcp/TCPConnection.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * 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 from
diff --git a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/tcp/TCPEndpoint.java b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/tcp/TCPEndpoint.java
index a9061e1..932d71a 100644
--- a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/tcp/TCPEndpoint.java
+++ b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/tcp/TCPEndpoint.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * 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 from
diff --git a/hyracks/hyracks-net/src/test/java/edu/uci/ics/hyracks/net/tests/NetTest.java b/hyracks/hyracks-net/src/test/java/edu/uci/ics/hyracks/net/tests/NetTest.java
index 5002b81..abb6e66 100644
--- a/hyracks/hyracks-net/src/test/java/edu/uci/ics/hyracks/net/tests/NetTest.java
+++ b/hyracks/hyracks-net/src/test/java/edu/uci/ics/hyracks/net/tests/NetTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * 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 from