fix key-value parser bug
diff --git a/genomix/genomix-hyracks/src/main/java/edu/uci/ics/genomix/hyracks/newgraph/dataflow/ReadsKeyValueParserFactory.java b/genomix/genomix-hyracks/src/main/java/edu/uci/ics/genomix/hyracks/newgraph/dataflow/ReadsKeyValueParserFactory.java
index 1b123f1..b101312 100644
--- a/genomix/genomix-hyracks/src/main/java/edu/uci/ics/genomix/hyracks/newgraph/dataflow/ReadsKeyValueParserFactory.java
+++ b/genomix/genomix-hyracks/src/main/java/edu/uci/ics/genomix/hyracks/newgraph/dataflow/ReadsKeyValueParserFactory.java
@@ -82,8 +82,8 @@
 
             private PositionWritable nodeId = new PositionWritable();
             private PositionListWritable nodeIdList = new PositionListWritable();
-            private KmerListWritable edgeListForPreKmer = new KmerListWritable(kmerSize);;
-            private KmerListWritable edgeListForNextKmer = new KmerListWritable(kmerSize);;
+            private KmerListWritable edgeListForPreKmer = new KmerListWritable(kmerSize);
+            private KmerListWritable edgeListForNextKmer = new KmerListWritable(kmerSize);
             private NodeWritable outputNode = new NodeWritable(kmerSize);
 
             private KmerBytesWritable preForwardKmer = new KmerBytesWritable(kmerSize);
diff --git a/genomix/genomix-hyracks/src/main/java/edu/uci/ics/genomix/hyracks/newgraph/dataflow/aggregators/AggregateKmerAggregateFactory.java b/genomix/genomix-hyracks/src/main/java/edu/uci/ics/genomix/hyracks/newgraph/dataflow/aggregators/AggregateKmerAggregateFactory.java
index d744bbe..cfd582b 100644
--- a/genomix/genomix-hyracks/src/main/java/edu/uci/ics/genomix/hyracks/newgraph/dataflow/aggregators/AggregateKmerAggregateFactory.java
+++ b/genomix/genomix-hyracks/src/main/java/edu/uci/ics/genomix/hyracks/newgraph/dataflow/aggregators/AggregateKmerAggregateFactory.java
@@ -44,6 +44,8 @@
         this.readLength = readlength;
         this.kmerSize = k;
     }
+    
+    
     @Override
     public IAggregatorDescriptor createAggregator(IHyracksTaskContext ctx, RecordDescriptor inRecordDescriptor,
             RecordDescriptor outRecordDescriptor, int[] keyFields, int[] keyFieldsInPartialResults)