diff --git a/pregelix-dataflow/pom.xml b/pregelix-dataflow/pom.xml
index 4c0da76..5e5d22c 100644
--- a/pregelix-dataflow/pom.xml
+++ b/pregelix-dataflow/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/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>pregelix-dataflow</artifactId>
diff --git a/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/ConnectorPolicyAssignmentPolicy.java b/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/ConnectorPolicyAssignmentPolicy.java
index ae47ed8..0a9d44d 100644
--- a/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/ConnectorPolicyAssignmentPolicy.java
+++ b/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/ConnectorPolicyAssignmentPolicy.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/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/CountTupleOperatorDescriptor.java b/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/CountTupleOperatorDescriptor.java
index 7ad6aa5..852c414 100644
--- a/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/CountTupleOperatorDescriptor.java
+++ b/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/CountTupleOperatorDescriptor.java
@@ -1,11 +1,11 @@
 /*
- * 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
- *
+ * 
  *     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.
diff --git a/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/EmptySinkOperatorDescriptor.java b/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/EmptySinkOperatorDescriptor.java
index fab7198..cfc0ecc 100644
--- a/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/EmptySinkOperatorDescriptor.java
+++ b/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/EmptySinkOperatorDescriptor.java
@@ -1,11 +1,11 @@
 /*
- * 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
- *
+ * 
  *     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.
diff --git a/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/EmptyTupleSourceOperatorDescriptor.java b/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/EmptyTupleSourceOperatorDescriptor.java
index 5276c82..984717c 100644
--- a/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/EmptyTupleSourceOperatorDescriptor.java
+++ b/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/EmptyTupleSourceOperatorDescriptor.java
@@ -1,11 +1,11 @@
 /*
- * 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
- *
+ * 
  *     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.
diff --git a/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/FinalAggregateOperatorDescriptor.java b/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/FinalAggregateOperatorDescriptor.java
index 71592ee..3fed609 100644
--- a/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/FinalAggregateOperatorDescriptor.java
+++ b/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/FinalAggregateOperatorDescriptor.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/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/HDFSFileWriteOperatorDescriptor.java b/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/HDFSFileWriteOperatorDescriptor.java
index 1d9c778..b74a5de 100644
--- a/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/HDFSFileWriteOperatorDescriptor.java
+++ b/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/HDFSFileWriteOperatorDescriptor.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/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/MaterializingReadOperatorDescriptor.java b/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/MaterializingReadOperatorDescriptor.java
index 9a87f02..86da3bf 100644
--- a/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/MaterializingReadOperatorDescriptor.java
+++ b/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/MaterializingReadOperatorDescriptor.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/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/MaterializingWriteOperatorDescriptor.java b/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/MaterializingWriteOperatorDescriptor.java
index efe5f1b..48ed806 100644
--- a/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/MaterializingWriteOperatorDescriptor.java
+++ b/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/MaterializingWriteOperatorDescriptor.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/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/NonCombinerConnectorPolicyAssignmentPolicy.java b/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/NonCombinerConnectorPolicyAssignmentPolicy.java
index 8023fe5..3a07e34 100644
--- a/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/NonCombinerConnectorPolicyAssignmentPolicy.java
+++ b/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/NonCombinerConnectorPolicyAssignmentPolicy.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.pregelix.dataflow;
 
 import edu.uci.ics.hyracks.api.dataflow.IConnectorDescriptor;
diff --git a/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/TerminationStateWriterOperatorDescriptor.java b/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/TerminationStateWriterOperatorDescriptor.java
index f54d176..d442f5d 100644
--- a/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/TerminationStateWriterOperatorDescriptor.java
+++ b/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/TerminationStateWriterOperatorDescriptor.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/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/VertexFileScanOperatorDescriptor.java b/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/VertexFileScanOperatorDescriptor.java
index 343ba7e..b34879e 100644
--- a/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/VertexFileScanOperatorDescriptor.java
+++ b/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/VertexFileScanOperatorDescriptor.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/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/VertexWriteOperatorDescriptor.java b/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/VertexWriteOperatorDescriptor.java
index 5da0239..aed5405 100644
--- a/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/VertexWriteOperatorDescriptor.java
+++ b/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/VertexWriteOperatorDescriptor.java
@@ -1,11 +1,11 @@
 /*
- * 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
- *
+ * 
  *     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.
diff --git a/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/base/IConfigurationFactory.java b/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/base/IConfigurationFactory.java
index 2e58196..dc9698b 100644
--- a/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/base/IConfigurationFactory.java
+++ b/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/base/IConfigurationFactory.java
@@ -1,11 +1,11 @@
 /*
- * 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
- *
+ * 
  *     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.
diff --git a/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/context/PreDelayPageCleanerPolicy.java b/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/context/PreDelayPageCleanerPolicy.java
index 2b07c81..72adfae 100644
--- a/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/context/PreDelayPageCleanerPolicy.java
+++ b/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/context/PreDelayPageCleanerPolicy.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/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/context/RuntimeContext.java b/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/context/RuntimeContext.java
index 2b32545..b86691c 100644
--- a/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/context/RuntimeContext.java
+++ b/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/context/RuntimeContext.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/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/context/StateKey.java b/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/context/StateKey.java
index ae58802..cbd90b9 100644
--- a/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/context/StateKey.java
+++ b/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/context/StateKey.java
@@ -1,11 +1,11 @@
 /*
- * 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
- *
+ * 
  *     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.
diff --git a/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/state/MaterializerTaskState.java b/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/state/MaterializerTaskState.java
index 117e9f0..817f5a7 100644
--- a/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/state/MaterializerTaskState.java
+++ b/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/state/MaterializerTaskState.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/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/util/IterationUtils.java b/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/util/IterationUtils.java
index dd562ba..1d7c979 100644
--- a/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/util/IterationUtils.java
+++ b/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/util/IterationUtils.java
@@ -1,11 +1,11 @@
 /*
- * 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
- *
+ * 
  *     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.