http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/main/java/org/apache/sysml/runtime/matrix/mapred/MMCJMRCache.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/sysml/runtime/matrix/mapred/MMCJMRCache.java 
b/src/main/java/org/apache/sysml/runtime/matrix/mapred/MMCJMRCache.java
index 66fc5cf..1b17aca 100644
--- a/src/main/java/org/apache/sysml/runtime/matrix/mapred/MMCJMRCache.java
+++ b/src/main/java/org/apache/sysml/runtime/matrix/mapred/MMCJMRCache.java
@@ -64,9 +64,9 @@ public abstract class MMCJMRCache
                _bufferCapacity = buffCapacity;
                _buffer = new Pair[_bufferCapacity];
                for(int i=0; i<_bufferCapacity; i++)
-                       _buffer[i] = new Pair<MatrixIndexes, MatrixValue>(new 
MatrixIndexes(), valueClass.newInstance());
+                       _buffer[i] = new Pair<>(new MatrixIndexes(), 
valueClass.newInstance());
                if( buffMap )
-                       _bufferMap = new HashMap<MatrixIndexes, Integer>();
+                       _bufferMap = new HashMap<>();
        
                //System.out.println("allocated buffer: "+_bufferCapacity);
        }

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/main/java/org/apache/sysml/runtime/matrix/mapred/MMCJMRCombinerReducerBase.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/sysml/runtime/matrix/mapred/MMCJMRCombinerReducerBase.java
 
b/src/main/java/org/apache/sysml/runtime/matrix/mapred/MMCJMRCombinerReducerBase.java
index 57440b3..0e19fd3 100644
--- 
a/src/main/java/org/apache/sysml/runtime/matrix/mapred/MMCJMRCombinerReducerBase.java
+++ 
b/src/main/java/org/apache/sysml/runtime/matrix/mapred/MMCJMRCombinerReducerBase.java
@@ -49,8 +49,8 @@ public class MMCJMRCombinerReducerBase extends ReduceBase
        protected byte tagForRight=1;
        protected MatrixCharacteristics dim1;
        protected MatrixCharacteristics dim2;
-//     protected int elementSize=8;
 
+       @Override
        public void configure(JobConf job)
        {
                super.configure(job);

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/main/java/org/apache/sysml/runtime/matrix/mapred/MMCJMRMapper.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/sysml/runtime/matrix/mapred/MMCJMRMapper.java 
b/src/main/java/org/apache/sysml/runtime/matrix/mapred/MMCJMRMapper.java
index b9e9723..f96e4ef 100644
--- a/src/main/java/org/apache/sysml/runtime/matrix/mapred/MMCJMRMapper.java
+++ b/src/main/java/org/apache/sysml/runtime/matrix/mapred/MMCJMRMapper.java
@@ -58,6 +58,7 @@ implements Mapper<Writable, Writable, Writable, Writable>
                commonMap(rawKey, rawValue, out, reporter);
        }
 
+       @Override
        public void configure(JobConf job)
        {
                super.configure(job);

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/main/java/org/apache/sysml/runtime/matrix/mapred/MMRJMRMapper.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/sysml/runtime/matrix/mapred/MMRJMRMapper.java 
b/src/main/java/org/apache/sysml/runtime/matrix/mapred/MMRJMRMapper.java
index af46b7d..c0455b3 100644
--- a/src/main/java/org/apache/sysml/runtime/matrix/mapred/MMRJMRMapper.java
+++ b/src/main/java/org/apache/sysml/runtime/matrix/mapred/MMRJMRMapper.java
@@ -109,6 +109,7 @@ implements Mapper<Writable, Writable, Writable, Writable>
                
        }
        
+       @Override
        public void configure(JobConf job)
        {
                super.configure(job);

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/main/java/org/apache/sysml/runtime/matrix/mapred/MMRJMRReducer.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/sysml/runtime/matrix/mapred/MMRJMRReducer.java 
b/src/main/java/org/apache/sysml/runtime/matrix/mapred/MMRJMRReducer.java
index 2b500b7..4bcb9c6 100644
--- a/src/main/java/org/apache/sysml/runtime/matrix/mapred/MMRJMRReducer.java
+++ b/src/main/java/org/apache/sysml/runtime/matrix/mapred/MMRJMRReducer.java
@@ -125,23 +125,20 @@ implements Reducer<TripleIndexes, TaggedMatrixValue, 
MatrixIndexes, MatrixValue>
                                
OperationsOnMatrixValues.incrementalAggregation(out.getValue(), null, 
resultblock, 
                                                ((AggregateBinaryOperator) 
aggBinInstruction.getOperator()).aggOp, false);
 
-               //              System.out.println("agg: \n"+out.getValue());
                        } catch (Exception e) {
                                throw new IOException(e);
                        }
                }
        }
        
+       @Override
        public void close() throws IOException
        {
                long start=System.currentTimeMillis();
                
-//             System.out.println("cacheValues before 
processReducerInstructions: \n"+cachedValues);
                //perform mixed operations
                processReducerInstructions();
                
-//             System.out.println("cacheValues before output: 
\n"+cachedValues);
-               
                //output results
                outputResultsFromCachedValues(cachedReporter);
                
@@ -150,7 +147,7 @@ implements Reducer<TripleIndexes, TaggedMatrixValue, 
MatrixIndexes, MatrixValue>
                super.close();
        }
        
-
+       @Override
        public void configure(JobConf job)
        {
                super.configure(job);

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/main/java/org/apache/sysml/runtime/matrix/mapred/MRBaseForCommonInstructions.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/sysml/runtime/matrix/mapred/MRBaseForCommonInstructions.java
 
b/src/main/java/org/apache/sysml/runtime/matrix/mapred/MRBaseForCommonInstructions.java
index 2cd4bc6..dc18b1d 100644
--- 
a/src/main/java/org/apache/sysml/runtime/matrix/mapred/MRBaseForCommonInstructions.java
+++ 
b/src/main/java/org/apache/sysml/runtime/matrix/mapred/MRBaseForCommonInstructions.java
@@ -24,7 +24,7 @@ import java.io.IOException;
 import java.util.ArrayList;
 import java.util.HashMap;
 
-import org.apache.hadoop.filecache.DistributedCache;
+import org.apache.hadoop.mapreduce.filecache.DistributedCache;
 import org.apache.hadoop.fs.Path;
 import org.apache.hadoop.mapred.JobConf;
 import org.apache.hadoop.mapred.MapReduceBase;

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/main/java/org/apache/sysml/runtime/matrix/mapred/MRJobConfiguration.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/sysml/runtime/matrix/mapred/MRJobConfiguration.java 
b/src/main/java/org/apache/sysml/runtime/matrix/mapred/MRJobConfiguration.java
index 269fe52..378d1ef 100644
--- 
a/src/main/java/org/apache/sysml/runtime/matrix/mapred/MRJobConfiguration.java
+++ 
b/src/main/java/org/apache/sysml/runtime/matrix/mapred/MRJobConfiguration.java
@@ -30,7 +30,7 @@ import java.util.Map.Entry;
 import java.util.TreeMap;
 
 import org.apache.hadoop.conf.Configuration;
-import org.apache.hadoop.filecache.DistributedCache;
+import org.apache.hadoop.mapreduce.filecache.DistributedCache;
 import org.apache.hadoop.fs.FileSystem;
 import org.apache.hadoop.fs.Path;
 import org.apache.hadoop.io.IntWritable;

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/main/java/org/apache/sysml/runtime/matrix/mapred/MapperBase.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/sysml/runtime/matrix/mapred/MapperBase.java 
b/src/main/java/org/apache/sysml/runtime/matrix/mapred/MapperBase.java
index 3b630ae..11ff6e7 100644
--- a/src/main/java/org/apache/sysml/runtime/matrix/mapred/MapperBase.java
+++ b/src/main/java/org/apache/sysml/runtime/matrix/mapred/MapperBase.java
@@ -174,6 +174,7 @@ public abstract class MapperBase extends 
MRBaseForCommonInstructions
                return ret && count>0;
        }
        
+       @Override
        public void configure(JobConf job)
        {
                super.configure(job);

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/main/java/org/apache/sysml/runtime/matrix/mapred/ReduceBase.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/sysml/runtime/matrix/mapred/ReduceBase.java 
b/src/main/java/org/apache/sysml/runtime/matrix/mapred/ReduceBase.java
index eade689..80df55d 100644
--- a/src/main/java/org/apache/sysml/runtime/matrix/mapred/ReduceBase.java
+++ b/src/main/java/org/apache/sysml/runtime/matrix/mapred/ReduceBase.java
@@ -92,6 +92,7 @@ public class ReduceBase extends MRBaseForCommonInstructions
                }
        }
        
+       @Override
        public void configure(JobConf job)
        {       
                super.configure(job);
@@ -193,6 +194,7 @@ public class ReduceBase extends MRBaseForCommonInstructions
                return ret;
        }
        
+       @Override
        public void close() throws IOException
        {
                if(cachedReporter!=null)

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/main/java/org/apache/sysml/runtime/matrix/sort/CompactInputFormat.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/sysml/runtime/matrix/sort/CompactInputFormat.java 
b/src/main/java/org/apache/sysml/runtime/matrix/sort/CompactInputFormat.java
index 350f65b..5582a76 100644
--- a/src/main/java/org/apache/sysml/runtime/matrix/sort/CompactInputFormat.java
+++ b/src/main/java/org/apache/sysml/runtime/matrix/sort/CompactInputFormat.java
@@ -50,12 +50,14 @@ public class CompactInputFormat<K extends 
WritableComparable, V extends Writable
                job.setClass(VALUE_CLASS, valueClass, Writable.class);
        }
        
+       @Override
        public RecordReader<K,V> getRecordReader(InputSplit split
                        , JobConf job, Reporter reporter) throws IOException {
-               return new CompactInputRecordReader<K,V>(job, (FileSplit) 
split);
+               return new CompactInputRecordReader<>(job, (FileSplit) split);
        }
        
        //the files are not splitable
+       @Override
        protected boolean isSplitable(FileSystem fs, Path filename)
        {
                return false;

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/main/java/org/apache/sysml/runtime/matrix/sort/CompactOutputFormat.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/sysml/runtime/matrix/sort/CompactOutputFormat.java 
b/src/main/java/org/apache/sysml/runtime/matrix/sort/CompactOutputFormat.java
index cd730cb..de20b65 100644
--- 
a/src/main/java/org/apache/sysml/runtime/matrix/sort/CompactOutputFormat.java
+++ 
b/src/main/java/org/apache/sysml/runtime/matrix/sort/CompactOutputFormat.java
@@ -36,27 +36,26 @@ import org.apache.sysml.runtime.io.IOUtilFunctions;
 
 public class CompactOutputFormat<K extends Writable, V extends Writable> 
extends FileOutputFormat<K,V> 
 {
-
-       
        static final String FINAL_SYNC_ATTRIBUTE = "final.sync";
 
-         /**
-          * Does the user want a final sync at close?
-          * 
-          * @param conf job configuration
-          * @return true if final sync at close
-          */
-         public static boolean getFinalSync(JobConf conf) {
-           return conf.getBoolean(FINAL_SYNC_ATTRIBUTE, false);
-         }
+       /**
+        * Does the user want a final sync at close?
+        * 
+        * @param conf job configuration
+        * @return true if final sync at close
+       */
+       public static boolean getFinalSync(JobConf conf) {
+               return conf.getBoolean(FINAL_SYNC_ATTRIBUTE, false);
+       }
        
+       @Override
        public RecordWriter<K,V> getRecordWriter(FileSystem ignored, JobConf 
job, String name, Progressable progress) 
        throws IOException {
                
                Path file = FileOutputFormat.getTaskOutputPath(job, name);
                FileSystem fs = file.getFileSystem(job);
                FSDataOutputStream fileOut = fs.create(file, progress);
-               return new FixedLengthRecordWriter<K,V>(fileOut, job);
+               return new FixedLengthRecordWriter<>(fileOut, job);
        }
        
        public static class FixedLengthRecordWriter<K extends Writable, V 
extends Writable> implements RecordWriter<K, V> {

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/main/java/org/apache/sysml/runtime/matrix/sort/PickFromCompactInputFormat.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/sysml/runtime/matrix/sort/PickFromCompactInputFormat.java
 
b/src/main/java/org/apache/sysml/runtime/matrix/sort/PickFromCompactInputFormat.java
index 0b7d5ac..a615741 100644
--- 
a/src/main/java/org/apache/sysml/runtime/matrix/sort/PickFromCompactInputFormat.java
+++ 
b/src/main/java/org/apache/sysml/runtime/matrix/sort/PickFromCompactInputFormat.java
@@ -57,6 +57,7 @@ public class PickFromCompactInputFormat extends 
FileInputFormat<MatrixIndexes, M
        public static final String PARTITION_OF_ZERO="partition.of.zero";
        public static final String NUMBER_OF_ZERO="number.of.zero";
        
+       @Override
        protected  boolean isSplitable(FileSystem fs, Path filename) {
                return false;
        }
@@ -128,23 +129,21 @@ public class PickFromCompactInputFormat extends 
FileInputFormat<MatrixIndexes, M
                        ArrayList<Pair<Integer, Integer>> 
vec=posMap.get(currentPart);
                        if(vec==null)
                        {
-                               vec=new ArrayList<Pair<Integer, Integer>>();
+                               vec=new ArrayList<>();
                                posMap.put(currentPart, vec);
                        }
                        
                        //set the actual position starting from 0
                        if(currentPart>0)
-                               vec.add( new Pair<Integer, Integer>( 
(int)(pos-ranges[currentPart-1]-1), e.index));
+                               vec.add( new Pair<>( 
(int)(pos-ranges[currentPart-1]-1), e.index));
                        else
-                               vec.add( new Pair<Integer, Integer>( 
(int)pos-1,  e.index));
+                               vec.add( new Pair<>( (int)pos-1,  e.index));
                }
        }
        
        public static Set<Integer> setPickRecordsInEachPartFile(JobConf job, 
NumItemsByEachReducerMetaData metadata, double[] probs)
        {
-               HashMap<Integer, ArrayList<Pair<Integer, Integer>>> posMap
-               =new HashMap<Integer, ArrayList<Pair<Integer, Integer>>>();
-               
+               HashMap<Integer, ArrayList<Pair<Integer, Integer>>> posMap = 
new HashMap<>();
                getPointsInEachPartFile(metadata.getNumItemsArray(), probs, 
posMap);
                
                for(Entry<Integer, ArrayList<Pair<Integer, Integer>>> e: 
posMap.entrySet())
@@ -209,6 +208,7 @@ public class PickFromCompactInputFormat extends 
FileInputFormat<MatrixIndexes, M
                return sb.substring(0, sb.length()-1);
        }
 
+       @Override
        public RecordReader<MatrixIndexes, MatrixCell> 
getRecordReader(InputSplit split
                        , JobConf job, Reporter reporter) throws IOException {
                if(job.getBoolean(INPUT_IS_VECTOR, true))
@@ -269,7 +269,7 @@ public class PickFromCompactInputFormat extends 
FileInputFormat<MatrixIndexes, M
                        String[] f2 = null;
                        
                        // Each field of the form: "pid,wt" where wt is the 
total wt until the part pid
-                       partWeights = new HashMap<Integer,Double>();
+                       partWeights = new HashMap<>();
                        for(int i=0; i < f1.length-1; i++) {
                                f2 = f1[i].split(",");
                                if(i==0) {

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/main/java/org/apache/sysml/runtime/matrix/sort/SamplingSortMRInputFormat.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/sysml/runtime/matrix/sort/SamplingSortMRInputFormat.java
 
b/src/main/java/org/apache/sysml/runtime/matrix/sort/SamplingSortMRInputFormat.java
index 3f6cd05..abaf272 100644
--- 
a/src/main/java/org/apache/sysml/runtime/matrix/sort/SamplingSortMRInputFormat.java
+++ 
b/src/main/java/org/apache/sysml/runtime/matrix/sort/SamplingSortMRInputFormat.java
@@ -71,7 +71,7 @@ extends SequenceFileInputFormat<K,V>
     {
                if(reporter!=null)
                        reporter.setStatus(split.toString());
-               return new SequenceFileRecordReader<K,V>(job, (FileSplit) 
split);
+               return new SequenceFileRecordReader<>(job, (FileSplit) split);
     }
 
        /**
@@ -188,7 +188,7 @@ extends SequenceFileInputFormat<K,V>
 
        private static class Sampler implements IndexedSortable 
        {
-               private ArrayList<WritableComparable> records = new 
ArrayList<WritableComparable>();
+               private ArrayList<WritableComparable> records = new 
ArrayList<>();
                
                @SuppressWarnings("unchecked")
                public int compare(int i, int j) {
@@ -204,13 +204,12 @@ extends SequenceFileInputFormat<K,V>
                        records.set(i, right);
                }
                
-               public void addValue(WritableComparable r)
-               {
+               public void addValue(WritableComparable r) {
                        records.add(r);
                }
                
-               public String toString()
-               {
+               @Override
+               public String toString() {
                        return records.toString();
                }
 
@@ -233,7 +232,7 @@ extends SequenceFileInputFormat<K,V>
                        //System.out.println("after sort: "+ toString());
                        float stepSize = numRecords / (float) numPartitions;
                        //System.out.println("Step size is " + stepSize);
-                       ArrayList<WritableComparable> result = new 
ArrayList<WritableComparable>(numPartitions-1);
+                       ArrayList<WritableComparable> result = new 
ArrayList<>(numPartitions-1);
                        for(int i=1; i < numPartitions; i++) {
                                result.add(records.get(Math.round(stepSize * 
i)));
                        }

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/main/java/org/apache/sysml/runtime/matrix/sort/ValueSortReducer.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/sysml/runtime/matrix/sort/ValueSortReducer.java 
b/src/main/java/org/apache/sysml/runtime/matrix/sort/ValueSortReducer.java
index 13751c5..89857d0 100644
--- a/src/main/java/org/apache/sysml/runtime/matrix/sort/ValueSortReducer.java
+++ b/src/main/java/org/apache/sysml/runtime/matrix/sort/ValueSortReducer.java
@@ -43,8 +43,8 @@ public class ValueSortReducer<K extends WritableComparable, V 
extends Writable>
        private boolean valueIsWeight=false;
        private long count=0;
        
-       public void configure(JobConf job)
-       {
+       @Override
+       public void configure(JobConf job) {
                taskID=MapReduceTool.getUniqueKeyPerTask(job, false);
                valueIsWeight=job.getBoolean(SortMR.VALUE_IS_WEIGHT, false);
        }

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/main/java/org/apache/sysml/runtime/transform/decode/DecoderFactory.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/sysml/runtime/transform/decode/DecoderFactory.java 
b/src/main/java/org/apache/sysml/runtime/transform/decode/DecoderFactory.java
index dcacd6d..5a351cb 100644
--- 
a/src/main/java/org/apache/sysml/runtime/transform/decode/DecoderFactory.java
+++ 
b/src/main/java/org/apache/sysml/runtime/transform/decode/DecoderFactory.java
@@ -45,7 +45,7 @@ public class DecoderFactory
                {
                        //parse transform specification
                        JSONObject jSpec = new JSONObject(spec);
-                       List<Decoder> ldecoders = new ArrayList<Decoder>();
+                       List<Decoder> ldecoders = new ArrayList<>();
                
                        //create decoders 'recode', 'dummy' and 'pass-through'
                        List<Integer> rcIDs = Arrays.asList(ArrayUtils.toObject(

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/main/java/org/apache/sysml/runtime/transform/decode/DecoderRecode.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/sysml/runtime/transform/decode/DecoderRecode.java 
b/src/main/java/org/apache/sysml/runtime/transform/decode/DecoderRecode.java
index f6e8471..5a71444 100644
--- a/src/main/java/org/apache/sysml/runtime/transform/decode/DecoderRecode.java
+++ b/src/main/java/org/apache/sysml/runtime/transform/decode/DecoderRecode.java
@@ -78,7 +78,7 @@ public class DecoderRecode extends Decoder
                //initialize recode maps according to schema
                _rcMaps = new HashMap[_colList.length];
                for( int j=0; j<_colList.length; j++ ) {
-                       HashMap<Long, Object> map = new HashMap<Long, Object>();
+                       HashMap<Long, Object> map = new HashMap<>();
                        for( int i=0; i<meta.getNumRows(); i++ ) {
                                if( meta.get(i, _colList[j]-1)==null )
                                        break; //reached end of recode map

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/main/java/org/apache/sysml/runtime/transform/encode/EncoderFactory.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/sysml/runtime/transform/encode/EncoderFactory.java 
b/src/main/java/org/apache/sysml/runtime/transform/encode/EncoderFactory.java
index b8180f3..a776cb6 100644
--- 
a/src/main/java/org/apache/sysml/runtime/transform/encode/EncoderFactory.java
+++ 
b/src/main/java/org/apache/sysml/runtime/transform/encode/EncoderFactory.java
@@ -54,7 +54,7 @@ public class EncoderFactory
                try {
                        //parse transform specification
                        JSONObject jSpec = new JSONObject(spec);
-                       List<Encoder> lencoders = new ArrayList<Encoder>();
+                       List<Encoder> lencoders = new ArrayList<>();
                
                        //prepare basic id lists (recode, dummycode, 
pass-through)
                        //note: any dummycode column requires recode as 
preparation

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/main/java/org/apache/sysml/runtime/transform/encode/EncoderMVImpute.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/sysml/runtime/transform/encode/EncoderMVImpute.java 
b/src/main/java/org/apache/sysml/runtime/transform/encode/EncoderMVImpute.java
index ad155e9..53895b7 100644
--- 
a/src/main/java/org/apache/sysml/runtime/transform/encode/EncoderMVImpute.java
+++ 
b/src/main/java/org/apache/sysml/runtime/transform/encode/EncoderMVImpute.java
@@ -88,15 +88,15 @@ public class EncoderMVImpute extends Encoder
                parseMethodsAndReplacments(parsedSpec);
                
                //create reuse histograms
-               _hist = new HashMap<Integer, HashMap<String,Long>>();
+               _hist = new HashMap<>();
        }
-                       
+       
        public EncoderMVImpute(JSONObject parsedSpec, String[] colnames, 
String[] NAstrings, int clen)
                throws JSONException 
        {
-               super(null, clen);      
+               super(null, clen);
                boolean isMV = parsedSpec.containsKey(TfUtils.TXMETHOD_IMPUTE);
-               boolean isSC = parsedSpec.containsKey(TfUtils.TXMETHOD_SCALE);  
        
+               boolean isSC = parsedSpec.containsKey(TfUtils.TXMETHOD_SCALE);
                _NAstrings = NAstrings;
                
                if(!isMV) {
@@ -314,7 +314,7 @@ public class EncoderMVImpute extends Encoder
                                else if( _mvMethodList[j] == 
MVMethod.GLOBAL_MODE ) {
                                        //compute global column mode 
(categorical), i.e., most frequent category
                                        HashMap<String,Long> hist = 
_hist.containsKey(colID) ? 
-                                                       _hist.get(colID) : new 
HashMap<String,Long>();
+                                                       _hist.get(colID) : new 
HashMap<>();
                                        for( int i=0; i<in.getNumRows(); i++ ) {
                                                String key = 
String.valueOf(in.get(i, colID-1));
                                                if( key != null && 
!key.isEmpty() ) {
@@ -358,6 +358,7 @@ public class EncoderMVImpute extends Encoder
                return out;
        }
 
+       @Override
        public void initMetaData(FrameBlock meta) {
                //init replacement lists, replace recoded values to
                //apply mv imputation potentially after recoding

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/main/java/org/apache/sysml/runtime/transform/encode/EncoderRecode.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/sysml/runtime/transform/encode/EncoderRecode.java 
b/src/main/java/org/apache/sysml/runtime/transform/encode/EncoderRecode.java
index d090e66..8758e73 100644
--- a/src/main/java/org/apache/sysml/runtime/transform/encode/EncoderRecode.java
+++ b/src/main/java/org/apache/sysml/runtime/transform/encode/EncoderRecode.java
@@ -37,7 +37,7 @@ public class EncoderRecode extends Encoder
        private static final long serialVersionUID = 8213163881283341874L;
        
        //recode maps and custom map for partial recode maps 
-       private HashMap<Integer, HashMap<String, Long>> _rcdMaps  = new 
HashMap<Integer, HashMap<String, Long>>();
+       private HashMap<Integer, HashMap<String, Long>> _rcdMaps  = new 
HashMap<>();
        private HashMap<Integer, HashSet<Object>> _rcdMapsPart = null;
        
        public EncoderRecode(JSONObject parsedSpec, String[] colnames, int clen)
@@ -105,7 +105,7 @@ public class EncoderRecode extends Encoder
 
                //ensure allocated partial recode map
                if( _rcdMapsPart == null )
-                       _rcdMapsPart = new HashMap<Integer, HashSet<Object>>();
+                       _rcdMapsPart = new HashMap<>();
                
                //construct partial recode map (tokens w/o codes)
                //iterate over columns for sequential access
@@ -113,7 +113,7 @@ public class EncoderRecode extends Encoder
                        int colID = _colList[j]; //1-based
                        //allocate column map if necessary
                        if( !_rcdMapsPart.containsKey(colID) ) 
-                               _rcdMapsPart.put(colID, new HashSet<Object>());
+                               _rcdMapsPart.put(colID, new HashSet<>());
                        HashSet<Object> map = _rcdMapsPart.get(colID);
                        //probe and build column map
                        for( int i=0; i<in.getNumRows(); i++ )
@@ -178,6 +178,7 @@ public class EncoderRecode extends Encoder
         * 
         * @param meta frame block
         */
+       @Override
        public void initMetaData( FrameBlock meta ) {
                if( meta == null || meta.getNumRows()<=0 )
                        return;

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/main/java/org/apache/sysml/runtime/transform/meta/TfMetaUtils.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/sysml/runtime/transform/meta/TfMetaUtils.java 
b/src/main/java/org/apache/sysml/runtime/transform/meta/TfMetaUtils.java
index 14a12b8..3d4353d 100644
--- a/src/main/java/org/apache/sysml/runtime/transform/meta/TfMetaUtils.java
+++ b/src/main/java/org/apache/sysml/runtime/transform/meta/TfMetaUtils.java
@@ -169,8 +169,8 @@ public class TfMetaUtils
                
                //read meta data (currently supported: recode, dummycode, bin, 
omit, impute)
                //note: recode/binning and impute might be applied on the same 
column
-               HashMap<String,String> meta = new HashMap<String,String>();
-               HashMap<String,String> mvmeta = new HashMap<String,String>();
+               HashMap<String,String> meta = new HashMap<>();
+               HashMap<String,String> mvmeta = new HashMap<>();
                int rows = 0;
                for( int j=0; j<colnames.length; j++ ) {
                        String colName = colnames[j];
@@ -223,8 +223,8 @@ public class TfMetaUtils
                
                //read meta data (currently supported: recode, dummycode, bin, 
omit)
                //note: recode/binning and impute might be applied on the same 
column
-               HashMap<String,String> meta = new HashMap<String,String>();
-               HashMap<String,String> mvmeta = new HashMap<String,String>();
+               HashMap<String,String> meta = new HashMap<>();
+               HashMap<String,String> mvmeta = new HashMap<>();
                int rows = 0;
                for( int j=0; j<colnames.length; j++ ) {
                        String colName = colnames[j];
@@ -289,7 +289,7 @@ public class TfMetaUtils
                        
                        InputStream is = new 
ByteArrayInputStream(map.getBytes("UTF-8"));
                        BufferedReader br = new BufferedReader(new 
InputStreamReader(is));
-                       Pair<String,String> pair = new Pair<String,String>();
+                       Pair<String,String> pair = new Pair<>();
                        String line; int rpos = 0; 
                        while( (line = br.readLine()) != null ) {
                                DecoderRecode.parseRecodeMapEntry(line, pair);

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/main/java/org/apache/sysml/runtime/transform/meta/TfOffsetMap.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/sysml/runtime/transform/meta/TfOffsetMap.java 
b/src/main/java/org/apache/sysml/runtime/transform/meta/TfOffsetMap.java
index a486697..8fde769 100644
--- a/src/main/java/org/apache/sysml/runtime/transform/meta/TfOffsetMap.java
+++ b/src/main/java/org/apache/sysml/runtime/transform/meta/TfOffsetMap.java
@@ -36,12 +36,12 @@ public class TfOffsetMap implements Serializable
        
        public TfOffsetMap( List<Pair<Long,Long>> rmRows ) {
                //sort input list of <key, rm rows per block>
-               TreeMap<Long, Long> tmap = new TreeMap<Long, Long>();
+               TreeMap<Long, Long> tmap = new TreeMap<>();
                for( Pair<Long, Long> pair : rmRows )
                        tmap.put(pair.getKey(), pair.getValue());
                
                //compute shifted keys and build hash table
-               _map = new HashMap<Long, Long>();
+               _map = new HashMap<>();
                long shift = 0;
                for( Entry<Long, Long> e : tmap.entrySet() ) {
                        _map.put(e.getKey(), e.getKey()-shift);

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/main/java/org/apache/sysml/runtime/util/NormalPRNGenerator.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/sysml/runtime/util/NormalPRNGenerator.java 
b/src/main/java/org/apache/sysml/runtime/util/NormalPRNGenerator.java
index ce6f7e0..69af6a6 100644
--- a/src/main/java/org/apache/sysml/runtime/util/NormalPRNGenerator.java
+++ b/src/main/java/org/apache/sysml/runtime/util/NormalPRNGenerator.java
@@ -28,22 +28,17 @@ import java.util.Random;
  * RandNPair, which uses Box-Muller method.
  */
 
-
 public class NormalPRNGenerator extends PRNGenerator
 {
-       //private long seed;
-       Random r;
+       private Random r;
        private RandNPair pair;
-       boolean flag = false; // we use pair.N1 if flag=false, and pair.N2 
otherwise
+       private boolean flag = false; // we use pair.N1 if flag=false, and 
pair.N2 otherwise
        
        public NormalPRNGenerator() {
                super();
        }
-
-       /*public NormalPRNGenerator(Random random) {
-               init(random);
-       }*/
        
+       @Override
        public void setSeed(long sd) {
                //seed = s;
                seed = sd;
@@ -53,6 +48,7 @@ public class NormalPRNGenerator extends PRNGenerator
                pair.compute(r);
        }
        
+       @Override
        public double nextDouble() {
                double d;
                if (!flag) {
@@ -65,5 +61,4 @@ public class NormalPRNGenerator extends PRNGenerator
                flag = !flag;
                return d;
        }
-
 }

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/main/java/org/apache/sysml/runtime/util/PoissonPRNGenerator.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/sysml/runtime/util/PoissonPRNGenerator.java 
b/src/main/java/org/apache/sysml/runtime/util/PoissonPRNGenerator.java
index 39de4c0..cf24d07 100644
--- a/src/main/java/org/apache/sysml/runtime/util/PoissonPRNGenerator.java
+++ b/src/main/java/org/apache/sysml/runtime/util/PoissonPRNGenerator.java
@@ -32,8 +32,8 @@ import org.apache.commons.math3.random.Well1024a;
 
 public class PoissonPRNGenerator extends PRNGenerator
 {
-       PoissonDistribution _pdist = null;
-       double _mean = Double.NaN;
+       private PoissonDistribution _pdist = null;
+       private double _mean = Double.NaN;
 
        public PoissonPRNGenerator() {
                // default mean and default seed
@@ -42,8 +42,7 @@ public class PoissonPRNGenerator extends PRNGenerator
                setup(_mean, seed);
        }
        
-       public PoissonPRNGenerator(double mean) 
-       {
+       public PoissonPRNGenerator(double mean) {
                // default seed
                super();
                _mean = mean;
@@ -52,7 +51,6 @@ public class PoissonPRNGenerator extends PRNGenerator
 
        public void setup(double mean, long sd) {
                seed = sd;
-               
                SynchronizedRandomGenerator srg = new 
SynchronizedRandomGenerator(new Well1024a());
                srg.setSeed(seed);
                _pdist = new PoissonDistribution(srg, _mean, 
PoissonDistribution.DEFAULT_EPSILON, 
PoissonDistribution.DEFAULT_MAX_ITERATIONS);
@@ -67,10 +65,8 @@ public class PoissonPRNGenerator extends PRNGenerator
                setup(mean, seed);
        }
        
+       @Override
        public double nextDouble() {
                return (double) _pdist.sample();
        }
-       
-       
-
 }

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/main/java/org/apache/sysml/runtime/util/UniformPRNGenerator.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/sysml/runtime/util/UniformPRNGenerator.java 
b/src/main/java/org/apache/sysml/runtime/util/UniformPRNGenerator.java
index 529ca03..9e819be 100644
--- a/src/main/java/org/apache/sysml/runtime/util/UniformPRNGenerator.java
+++ b/src/main/java/org/apache/sysml/runtime/util/UniformPRNGenerator.java
@@ -24,11 +24,10 @@ import java.util.Random;
 
 public class UniformPRNGenerator extends PRNGenerator {
 
-       Random runif = null;
+       private Random runif = null;
        
-       public void setSeed(long sd) {
-               seed = sd;
-               runif = new Random(seed);
+       public UniformPRNGenerator() {
+               super();
        }
        
        public UniformPRNGenerator(long sd) {
@@ -36,8 +35,10 @@ public class UniformPRNGenerator extends PRNGenerator {
                setSeed(sd);
        }
 
-       public UniformPRNGenerator() {
-               super();
+       @Override
+       public void setSeed(long sd) {
+               seed = sd;
+               runif = new Random(seed);
        }
 
        @Override

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/main/java/org/apache/sysml/udf/ExternalFunctionInvocationInstruction.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/sysml/udf/ExternalFunctionInvocationInstruction.java 
b/src/main/java/org/apache/sysml/udf/ExternalFunctionInvocationInstruction.java
index 476970a..93717e5 100644
--- 
a/src/main/java/org/apache/sysml/udf/ExternalFunctionInvocationInstruction.java
+++ 
b/src/main/java/org/apache/sysml/udf/ExternalFunctionInvocationInstruction.java
@@ -67,11 +67,12 @@ public class ExternalFunctionInvocationInstruction extends 
Instruction
                return outputParams;
        }
 
+       @Override
        public String toString() {
                return className + ELEMENT_DELIM + 
-                      configFile + ELEMENT_DELIM + 
-                      inputParams + ELEMENT_DELIM + 
-                      outputParams;
+                       configFile + ELEMENT_DELIM + 
+                       inputParams + ELEMENT_DELIM + 
+                       outputParams;
        }
 
        @Override

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/test/java/org/apache/sysml/test/integration/AutomatedTestBase.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/sysml/test/integration/AutomatedTestBase.java 
b/src/test/java/org/apache/sysml/test/integration/AutomatedTestBase.java
index 6a78011..d39e513 100644
--- a/src/test/java/org/apache/sysml/test/integration/AutomatedTestBase.java
+++ b/src/test/java/org/apache/sysml/test/integration/AutomatedTestBase.java
@@ -1712,18 +1712,13 @@ public abstract class AutomatedTestBase
                }
        }
 
-       private String getSourceDirectory(String testDirectory) {
+       private static String getSourceDirectory(String testDirectory) {
                String sourceDirectory = "";
-
-               if (null != testDirectory)
-               {
+               if (null != testDirectory) {
                        if (testDirectory.endsWith("/"))
-                       {
                                testDirectory = testDirectory.substring(0, 
testDirectory.length() - "/".length());
-                       }
                        sourceDirectory = testDirectory.substring(0, 
testDirectory.lastIndexOf("/") + "/".length());
                }
-
                return sourceDirectory;
        }
 

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/test/java/org/apache/sysml/test/integration/applications/ID3Test.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/sysml/test/integration/applications/ID3Test.java 
b/src/test/java/org/apache/sysml/test/integration/applications/ID3Test.java
index c7d3cb4..a158f52 100644
--- a/src/test/java/org/apache/sysml/test/integration/applications/ID3Test.java
+++ b/src/test/java/org/apache/sysml/test/integration/applications/ID3Test.java
@@ -89,8 +89,8 @@ public abstract class ID3Test extends AutomatedTestBase
                rCmd = getRCmd(inputDir(), expectedDir());
 
         // prepare training data set
-        double[][] X = round(getRandomMatrix(rows, cols, 1, 10, 1.0, 3));
-        double[][] y = round(getRandomMatrix(rows, 1, 1, 10, 1.0, 7));
+        double[][] X = TestUtils.round(getRandomMatrix(rows, cols, 1, 10, 1.0, 
3));
+        double[][] y = TestUtils.round(getRandomMatrix(rows, 1, 1, 10, 1.0, 
7));
         writeInputMatrixWithMTD("X", X, true);
         writeInputMatrixWithMTD("y", y, true);
         
@@ -114,12 +114,4 @@ public abstract class ID3Test extends AutomatedTestBase
         TestUtils.compareMatrices(nR, nSYSTEMML, Math.pow(10, -14), "nR", 
"nSYSTEMML");
         TestUtils.compareMatrices(eR, eSYSTEMML, Math.pow(10, -14), "eR", 
"eSYSTEMML");      
     }
-    
-    private double[][] round( double[][] data )
-       {
-               for( int i=0; i<data.length; i++ )
-                       for( int j=0; j<data[i].length; j++ )
-                               data[i][j] = Math.round(data[i][j]);
-               return data;
-       }
 }

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/test/java/org/apache/sysml/test/integration/applications/descriptivestats/BivariateCategoricalCategoricallTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/sysml/test/integration/applications/descriptivestats/BivariateCategoricalCategoricallTest.java
 
b/src/test/java/org/apache/sysml/test/integration/applications/descriptivestats/BivariateCategoricalCategoricallTest.java
index 506cf5e..2430d52 100644
--- 
a/src/test/java/org/apache/sysml/test/integration/applications/descriptivestats/BivariateCategoricalCategoricallTest.java
+++ 
b/src/test/java/org/apache/sysml/test/integration/applications/descriptivestats/BivariateCategoricalCategoricallTest.java
@@ -82,11 +82,11 @@ public class BivariateCategoricalCategoricallTest extends 
AutomatedTestBase
                fullRScriptName = CC_HOME + TEST_NOMINAL_NOMINAL + ".R";
                rCmd = "Rscript" + " " + fullRScriptName + " " + inputDir() + " 
" + expectedDir();
 
-        double[][] A = getRandomMatrix(rows, 1, 1, ncatA, 1, 3);
-        double[][] B = getRandomMatrix(rows, 1, 1, ncatB, 1, 7);
-        round(A);
-        round(B);
-        
+               double[][] A = getRandomMatrix(rows, 1, 1, ncatA, 1, 3);
+               double[][] B = getRandomMatrix(rows, 1, 1, ncatB, 1, 7);
+               TestUtils.round(A);
+               TestUtils.round(B);
+
                writeInputMatrix("A", A, true);
                writeInputMatrix("B", B, true);
 
@@ -121,11 +121,6 @@ public class BivariateCategoricalCategoricallTest extends 
AutomatedTestBase
                
        }
        
-       private void round(double[][] weight) {
-               for(int i=0; i<weight.length; i++)
-                       weight[i][0]=Math.round(weight[i][0]);
-       }
-
        @Test
        public void testCategoricalCategoricalWithWeights() {
                TestConfiguration config = 
getTestConfiguration(TEST_NOMINAL_NOMINAL_WEIGHTS);
@@ -141,18 +136,18 @@ public class BivariateCategoricalCategoricallTest extends 
AutomatedTestBase
                fullRScriptName = CC_HOME + TEST_NOMINAL_NOMINAL_WEIGHTS + ".R";
                rCmd = "Rscript" + " " + fullRScriptName + " " + inputDir() + " 
" + expectedDir();
 
-        double[][] A = getRandomMatrix(rows, 1, 1, ncatA, 1, 
System.currentTimeMillis());
-        double[][] B = getRandomMatrix(rows, 1, 1, ncatB, 1, 
System.currentTimeMillis()+1);
-        double[][] WM = getRandomMatrix(rows, 1, 1, maxW, 1, 
System.currentTimeMillis()+2);
-        round(A);
-        round(B);
-        round(WM);
-        
+               double[][] A = getRandomMatrix(rows, 1, 1, ncatA, 1, 
System.currentTimeMillis());
+               double[][] B = getRandomMatrix(rows, 1, 1, ncatB, 1, 
System.currentTimeMillis()+1);
+               double[][] WM = getRandomMatrix(rows, 1, 1, maxW, 1, 
System.currentTimeMillis()+2);
+               TestUtils.round(A);
+               TestUtils.round(B);
+               TestUtils.round(WM);
+
                writeInputMatrix("A", A, true);
                writeInputMatrix("B", B, true);
                writeInputMatrix("WM", WM, true);
-        createHelperMatrix();
-        
+               createHelperMatrix();
+               
                /*
                 * Expected number of jobs:
                 * Mean etc - 2 jobs (reblock & gmr)
@@ -210,11 +205,11 @@ public class BivariateCategoricalCategoricallTest extends 
AutomatedTestBase
 
                // current test works only for 2x2 contingency tables => 
#categories must be 2
                int numCat = 2;
-        double[][] A = getRandomMatrix(rows, 1, 1, numCat, 1, 
System.currentTimeMillis());
-        double[][] B = getRandomMatrix(rows, 1, 1, numCat, 1, 
System.currentTimeMillis()+1);
-        round(A);
-        round(B);
-        
+               double[][] A = getRandomMatrix(rows, 1, 1, numCat, 1, 
System.currentTimeMillis());
+               double[][] B = getRandomMatrix(rows, 1, 1, numCat, 1, 
System.currentTimeMillis()+1);
+               TestUtils.round(A);
+               TestUtils.round(B);
+
                writeInputMatrix("A", A, true);
                writeInputMatrix("B", B, true);
 

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/test/java/org/apache/sysml/test/integration/applications/descriptivestats/BivariateOrdinalOrdinalTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/sysml/test/integration/applications/descriptivestats/BivariateOrdinalOrdinalTest.java
 
b/src/test/java/org/apache/sysml/test/integration/applications/descriptivestats/BivariateOrdinalOrdinalTest.java
index d945904..45d8966 100644
--- 
a/src/test/java/org/apache/sysml/test/integration/applications/descriptivestats/BivariateOrdinalOrdinalTest.java
+++ 
b/src/test/java/org/apache/sysml/test/integration/applications/descriptivestats/BivariateOrdinalOrdinalTest.java
@@ -68,11 +68,11 @@ public class BivariateOrdinalOrdinalTest extends 
AutomatedTestBase
                fullRScriptName = OO_HOME + TEST_ORDINAL_ORDINAL + ".R";
                rCmd = "Rscript" + " " + fullRScriptName + " " + inputDir() + " 
" + expectedDir();
 
-        double[][] A = getRandomMatrix(rows, 1, 1, ncatA, 1, 
System.currentTimeMillis());
-        double[][] B = getRandomMatrix(rows, 1, 1, ncatB, 1, 
System.currentTimeMillis()+1);
-        round(A);
-        round(B);
-        
+               double[][] A = getRandomMatrix(rows, 1, 1, ncatA, 1, 
System.currentTimeMillis());
+               double[][] B = getRandomMatrix(rows, 1, 1, ncatB, 1, 
System.currentTimeMillis()+1);
+               TestUtils.floor(A);
+               TestUtils.floor(B);
+
                writeInputMatrix("A", A, true);
                writeInputMatrix("B", B, true);
 
@@ -97,11 +97,6 @@ public class BivariateOrdinalOrdinalTest extends 
AutomatedTestBase
                }
        }
        
-       private void round(double[][] weight) {
-               for(int i=0; i<weight.length; i++)
-                       weight[i][0]=Math.floor(weight[i][0]);
-       }
-
        @Test
        public void testOrdinalOrdinalWithWeights() {
                TestConfiguration config = 
getTestConfiguration(TEST_ORDINAL_ORDINAL_WEIGHTS);
@@ -117,13 +112,13 @@ public class BivariateOrdinalOrdinalTest extends 
AutomatedTestBase
                fullRScriptName = OO_HOME + TEST_ORDINAL_ORDINAL_WEIGHTS + ".R";
                rCmd = "Rscript" + " " + fullRScriptName + " " + inputDir() + " 
" + expectedDir();
 
-        double[][] A = getRandomMatrix(rows, 1, 1, ncatA, 1, 
System.currentTimeMillis());
-        double[][] B = getRandomMatrix(rows, 1, 1, ncatB, 1, 
System.currentTimeMillis());
-        double[][] WM = getRandomMatrix(rows, 1, 1, maxW, 1, 
System.currentTimeMillis());
-        round(A);
-        round(B);
-        round(WM);
-        
+               double[][] A = getRandomMatrix(rows, 1, 1, ncatA, 1, 
System.currentTimeMillis());
+               double[][] B = getRandomMatrix(rows, 1, 1, ncatB, 1, 
System.currentTimeMillis());
+               double[][] WM = getRandomMatrix(rows, 1, 1, maxW, 1, 
System.currentTimeMillis());
+               TestUtils.floor(A);
+               TestUtils.floor(B);
+               TestUtils.floor(WM);
+
                writeInputMatrix("A", A, true);
                writeInputMatrix("B", B, true);
                writeInputMatrix("WM", WM, true);

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/test/java/org/apache/sysml/test/integration/applications/descriptivestats/BivariateScaleCategoricalTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/sysml/test/integration/applications/descriptivestats/BivariateScaleCategoricalTest.java
 
b/src/test/java/org/apache/sysml/test/integration/applications/descriptivestats/BivariateScaleCategoricalTest.java
index 90310c5..431be84 100644
--- 
a/src/test/java/org/apache/sysml/test/integration/applications/descriptivestats/BivariateScaleCategoricalTest.java
+++ 
b/src/test/java/org/apache/sysml/test/integration/applications/descriptivestats/BivariateScaleCategoricalTest.java
@@ -73,18 +73,14 @@ public class BivariateScaleCategoricalTest extends 
AutomatedTestBase
                fullRScriptName = SC_HOME + TEST_SCALE_NOMINAL + ".R";
                rCmd = "Rscript" + " " + fullRScriptName + " " + inputDir() + " 
" + expectedDir();
 
-        double[][] A = getRandomMatrix(rows, 1, 1, ncatA, 1, 
System.currentTimeMillis()) ; 
-        round(A);
-        double[][] Y = getRandomMatrix(rows, 1, minVal, maxVal, 0.1, 
System.currentTimeMillis()) ; 
+               double[][] A = getRandomMatrix(rows, 1, 1, ncatA, 1, 
System.currentTimeMillis()) ; 
+               TestUtils.floor(A);
+               double[][] Y = getRandomMatrix(rows, 1, minVal, maxVal, 0.1, 
System.currentTimeMillis()) ; 
 
                writeInputMatrix("A", A, true);
                writeInputMatrix("Y", Y, true);
 
                boolean exceptionExpected = false;
-               /*
-                * Expected number of jobs:
-                */
-               // int expectedNumberOfJobs = 5;
                runTest(true, exceptionExpected, null, -1);
                
                runRScript(true);
@@ -106,11 +102,6 @@ public class BivariateScaleCategoricalTest extends 
AutomatedTestBase
                        TestUtils.compareMatrices(dmlfile, rfile, eps, 
file+"-DML", file+"-R");
                }
        }
-       
-       private void round(double[][] weight) {
-               for(int i=0; i<weight.length; i++)
-                       weight[i][0]=Math.floor(weight[i][0]);
-       }
 
        @Test
        public void testScaleCategoricalWithWeights() {
@@ -129,12 +120,12 @@ public class BivariateScaleCategoricalTest extends 
AutomatedTestBase
                fullRScriptName = SC_HOME + TEST_SCALE_NOMINAL_WEIGHTS + ".R";
                rCmd = "Rscript" + " " + fullRScriptName + " " + inputDir() + " 
" + expectedDir();
 
-        double[][] A = getRandomMatrix(rows, 1, 1, ncatA, 1, 
System.currentTimeMillis());
-        double[][] Y = getRandomMatrix(rows, 1, minVal, maxVal, 0.1, 
System.currentTimeMillis());
-        double[][] WM = getRandomMatrix(rows, 1, 1, maxW, 1, 
System.currentTimeMillis());
-        round(A);
-        round(WM);
-        
+               double[][] A = getRandomMatrix(rows, 1, 1, ncatA, 1, 
System.currentTimeMillis());
+               double[][] Y = getRandomMatrix(rows, 1, minVal, maxVal, 0.1, 
System.currentTimeMillis());
+               double[][] WM = getRandomMatrix(rows, 1, 1, maxW, 1, 
System.currentTimeMillis());
+               TestUtils.floor(A);
+               TestUtils.floor(WM);
+
                writeInputMatrix("A", A, true);
                writeInputMatrix("Y", Y, true);
                writeInputMatrix("WM", WM, true);

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/test/java/org/apache/sysml/test/integration/applications/descriptivestats/BivariateScaleScaleTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/sysml/test/integration/applications/descriptivestats/BivariateScaleScaleTest.java
 
b/src/test/java/org/apache/sysml/test/integration/applications/descriptivestats/BivariateScaleScaleTest.java
index 95e57e7..7c1bbc8 100644
--- 
a/src/test/java/org/apache/sysml/test/integration/applications/descriptivestats/BivariateScaleScaleTest.java
+++ 
b/src/test/java/org/apache/sysml/test/integration/applications/descriptivestats/BivariateScaleScaleTest.java
@@ -103,11 +103,6 @@ public class BivariateScaleScaleTest extends 
AutomatedTestBase
                }
        }
        
-       private void round(double[][] weight) {
-               for(int i=0; i<weight.length; i++)
-                       weight[i][0]=Math.floor(weight[i][0]);
-       }
-
        @Test
        public void testPearsonRWithWeights() {
 
@@ -124,17 +119,15 @@ public class BivariateScaleScaleTest extends 
AutomatedTestBase
                fullRScriptName = SS_HOME + TEST_SCALE_SCALE_WEIGHTS + ".R";
                rCmd = "Rscript" + " " + fullRScriptName + " " + inputDir() + " 
" + expectedDir();
 
-               //long seed = System.currentTimeMillis();
-               //System.out.println("Seed = " + seed);
-        double[][] X = getRandomMatrix(rows, 1, minVal, maxVal, 0.1, 
System.currentTimeMillis());
-        double[][] Y = getRandomMatrix(rows, 1, minVal, maxVal, 0.1, 
System.currentTimeMillis());
-        double[][] WM = getRandomMatrix(rows, 1, 1, maxW, 1, 
System.currentTimeMillis());
-        round(WM);
-        
+               double[][] X = getRandomMatrix(rows, 1, minVal, maxVal, 0.1, 
System.currentTimeMillis());
+               double[][] Y = getRandomMatrix(rows, 1, minVal, maxVal, 0.1, 
System.currentTimeMillis());
+               double[][] WM = getRandomMatrix(rows, 1, 1, maxW, 1, 
System.currentTimeMillis());
+               TestUtils.floor(WM);
+
                writeInputMatrix("X", X, true);
                writeInputMatrix("Y", Y, true);
                writeInputMatrix("WM", WM, true);
-        createHelperMatrix();
+               createHelperMatrix();
                
                boolean exceptionExpected = false;
                /*

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/test/java/org/apache/sysml/test/integration/applications/parfor/ParForBivariateStatsTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/sysml/test/integration/applications/parfor/ParForBivariateStatsTest.java
 
b/src/test/java/org/apache/sysml/test/integration/applications/parfor/ParForBivariateStatsTest.java
index 3381436..bad8589 100644
--- 
a/src/test/java/org/apache/sysml/test/integration/applications/parfor/ParForBivariateStatsTest.java
+++ 
b/src/test/java/org/apache/sysml/test/integration/applications/parfor/ParForBivariateStatsTest.java
@@ -138,15 +138,15 @@ public class ParForBivariateStatsTest extends 
AutomatedTestBase
                {
                        Dkind[i]=(i%3)+1;//kind 1,2,3
                        if( Dkind[i]!=1 )
-                               round(D,i); //for ordinal and categorical vars
+                               TestUtils.floor(D,i); //for ordinal and 
categorical vars
                }
                writeInputMatrix("D", D, true);
                
                //generate attribute sets               
-        double[][] S1 = getRandomMatrix(1, cols2, 1, cols+1-eps, 1, 1112);
-        double[][] S2 = getRandomMatrix(1, cols2, 1, cols+1-eps, 1, 1113);
-        round(S1);
-        round(S2);
+               double[][] S1 = getRandomMatrix(1, cols2, 1, cols+1-eps, 1, 
1112);
+               double[][] S2 = getRandomMatrix(1, cols2, 1, cols+1-eps, 1, 
1113);
+               TestUtils.floor(S1);
+               TestUtils.floor(S2);
                writeInputMatrix("S1", S1, true);
                writeInputMatrix("S2", S2, true);       
 
@@ -175,15 +175,4 @@ public class ParForBivariateStatsTest extends 
AutomatedTestBase
                        TestUtils.compareMatrices(dmlfile, rfile, eps, 
"Stat-DML", "Stat-R");
                }
        }
-       
-       private void round(double[][] data) {
-               for(int i=0; i<data.length; i++)
-                       for(int j=0; j<data[i].length; j++)
-                               data[i][j]=Math.floor(data[i][j]);
-       }
-       
-       private void round(double[][] data, int col) {
-               for(int i=0; i<data.length; i++)
-                       data[i][col]=Math.floor(data[i][col]);
-       }
 }
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/test/java/org/apache/sysml/test/integration/applications/parfor/ParForCVMulticlassSVMTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/sysml/test/integration/applications/parfor/ParForCVMulticlassSVMTest.java
 
b/src/test/java/org/apache/sysml/test/integration/applications/parfor/ParForCVMulticlassSVMTest.java
index be5c771..fe53897 100644
--- 
a/src/test/java/org/apache/sysml/test/integration/applications/parfor/ParForCVMulticlassSVMTest.java
+++ 
b/src/test/java/org/apache/sysml/test/integration/applications/parfor/ParForCVMulticlassSVMTest.java
@@ -143,8 +143,8 @@ public class ParForCVMulticlassSVMTest extends 
AutomatedTestBase
                
                //generate actual dataset
                double[][] X = getRandomMatrix(rows, cols, 0, 1, sparsity, 7); 
-               double[][] y = round(getRandomMatrix(rows, 1, 0.51, 
numclasses+0.49, 1.0, 7)); 
-               double[][] P = round(getRandomMatrix(rows, 1, 0.51, k+0.49, 
1.0, 3)); 
+               double[][] y = TestUtils.round(getRandomMatrix(rows, 1, 0.51, 
numclasses+0.49, 1.0, 7)); 
+               double[][] P = TestUtils.round(getRandomMatrix(rows, 1, 0.51, 
k+0.49, 1.0, 3)); 
 
                MatrixCharacteristics mc1 = new 
MatrixCharacteristics(rows,cols,-1,-1);
                writeInputMatrixWithMTD("X", X, true, mc1);
@@ -163,10 +163,4 @@ public class ParForCVMulticlassSVMTest extends 
AutomatedTestBase
                HashMap<CellIndex, Double> rfile  = readRMatrixFromFS("stats");
                TestUtils.compareMatrices(dmlfile, rfile, eps, "DML", "R");
        }
-       
-       private double[][] round(double[][] data) {
-               for(int i=0; i<data.length; i++)
-                       data[i][0]=Math.round(data[i][0]);
-               return data;
-       }
 }
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/test/java/org/apache/sysml/test/integration/applications/parfor/ParForUnivariateStatsTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/sysml/test/integration/applications/parfor/ParForUnivariateStatsTest.java
 
b/src/test/java/org/apache/sysml/test/integration/applications/parfor/ParForUnivariateStatsTest.java
index 772b35b..4303e50 100644
--- 
a/src/test/java/org/apache/sysml/test/integration/applications/parfor/ParForUnivariateStatsTest.java
+++ 
b/src/test/java/org/apache/sysml/test/integration/applications/parfor/ParForUnivariateStatsTest.java
@@ -143,7 +143,7 @@ public class ParForUnivariateStatsTest extends 
AutomatedTestBase
                {
                        Dkind[i]=(i%3)+1;//kind 1,2,3
                        if( Dkind[i]!=1 )
-                               round(D,i); //for ordinal and categorical vars
+                               TestUtils.floor(D,i); //for ordinal and 
categorical vars
                }
                MatrixCharacteristics mc1 = new 
MatrixCharacteristics(rows,cols,-1,-1);
                writeInputMatrixWithMTD("D", D, true, mc1);
@@ -172,9 +172,4 @@ public class ParForUnivariateStatsTest extends 
AutomatedTestBase
                        TestUtils.compareMatrices(dmlfile, rfile, eps, 
"Stat-DML", "Stat-R");
                }
        }
-       
-       private void round(double[][] data, int col) {
-               for(int i=0; i<data.length; i++)
-                       data[i][col]=Math.floor(data[i][col]);
-       }
 }
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/test/java/org/apache/sysml/test/integration/functions/binary/matrix/UltraSparseMRMatrixMultiplicationTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/sysml/test/integration/functions/binary/matrix/UltraSparseMRMatrixMultiplicationTest.java
 
b/src/test/java/org/apache/sysml/test/integration/functions/binary/matrix/UltraSparseMRMatrixMultiplicationTest.java
index 71ca7a6..229b5d7 100644
--- 
a/src/test/java/org/apache/sysml/test/integration/functions/binary/matrix/UltraSparseMRMatrixMultiplicationTest.java
+++ 
b/src/test/java/org/apache/sysml/test/integration/functions/binary/matrix/UltraSparseMRMatrixMultiplicationTest.java
@@ -183,7 +183,7 @@ public class UltraSparseMRMatrixMultiplicationTest extends 
AutomatedTestBase
                        double[][] A = getRandomMatrix(rows, cols, 0, 1, 
sparseM1?sparsity2:sparsity1, 7); 
                        writeInputMatrix("A", A, true);
                        double[][] B = getRandomMatrix(rows, 1, 0.51, 3.49, 
1.0, 3); 
-                       B = round(B);
+                       B = TestUtils.round(B);
                        writeInputMatrix("B", B, true);
        
                        boolean exceptionExpected = false;
@@ -195,19 +195,10 @@ public class UltraSparseMRMatrixMultiplicationTest 
extends AutomatedTestBase
                        HashMap<CellIndex, Double> rfile  = 
readRMatrixFromFS("C");
                        TestUtils.compareMatrices(dmlfile, rfile, eps, 
"Stat-DML", "Stat-R");
                }
-               finally
-               {
+               finally {
                        rtplatform = platformOld;
                        DMLScript.USE_LOCAL_SPARK_CONFIG = sparkConfigOld;
                        AggBinaryOp.FORCED_MMULT_METHOD = null;
                }
        }
-
-       
-       private double[][] round(double[][] data) {
-               for(int i=0; i<data.length; i++)
-                       data[i][0]=Math.round(data[i][0]);
-               return data;
-       }
-       
 }
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/test/java/org/apache/sysml/test/integration/functions/binary/matrix_full_other/FullIntegerDivisionTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/sysml/test/integration/functions/binary/matrix_full_other/FullIntegerDivisionTest.java
 
b/src/test/java/org/apache/sysml/test/integration/functions/binary/matrix_full_other/FullIntegerDivisionTest.java
index 4b3f5b0..1597f32 100644
--- 
a/src/test/java/org/apache/sysml/test/integration/functions/binary/matrix_full_other/FullIntegerDivisionTest.java
+++ 
b/src/test/java/org/apache/sysml/test/integration/functions/binary/matrix_full_other/FullIntegerDivisionTest.java
@@ -387,56 +387,37 @@ public class FullIntegerDivisionTest extends 
AutomatedTestBase
                }
        }
        
-       /**
-        * 
-        * @param name
-        * @param matrix
-        * @param includeR
-        */
-       private void writeScalarInputMatrixWithMTD(String name, double[][] 
matrix, boolean includeR) 
+       private static void writeScalarInputMatrixWithMTD(String name, 
double[][] matrix, boolean includeR) 
        {
-               try
-               {
+               try {
                        //write DML scalar
                        String fname = baseDirectory + INPUT_DIR + name; // + 
"/in";
                        MapReduceTool.deleteFileIfExistOnHDFS(fname);
                        MapReduceTool.writeDoubleToHDFS(matrix[0][0], fname);
                        MapReduceTool.writeScalarMetaDataFile(baseDirectory + 
INPUT_DIR + name + ".mtd", ValueType.DOUBLE);
                
-                       
                        //write R matrix
                        if( includeR ){
                                String completeRPath = baseDirectory + 
INPUT_DIR + name + ".mtx";
                                TestUtils.writeTestMatrix(completeRPath, 
matrix, true);
                        }
                }
-               catch(IOException e)
-               {
+               catch(IOException e) {
                        e.printStackTrace();
                        throw new RuntimeException(e);
                }
        }
        
-       /**
-        * 
-        * @param name
-        * @return
-        */
-       private HashMap<CellIndex,Double> readScalarMatrixFromHDFS(String name) 
-       {
+       private static HashMap<CellIndex,Double> 
readScalarMatrixFromHDFS(String name) {
                HashMap<CellIndex,Double> dmlfile = new 
HashMap<CellIndex,Double>();
-               try
-               {
+               try {
                        Double val = 
MapReduceTool.readDoubleFromHDFSFile(baseDirectory + OUTPUT_DIR + name);
                        dmlfile.put(new CellIndex(1,1), val);
                }
-               catch(IOException e)
-               {
+               catch(IOException e) {
                        e.printStackTrace();
                        throw new RuntimeException(e);
                }
-               
                return dmlfile;
        }
-               
 }
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/test/java/org/apache/sysml/test/integration/functions/binary/matrix_full_other/FullPowerTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/sysml/test/integration/functions/binary/matrix_full_other/FullPowerTest.java
 
b/src/test/java/org/apache/sysml/test/integration/functions/binary/matrix_full_other/FullPowerTest.java
index b59fd26..3e0e48d 100644
--- 
a/src/test/java/org/apache/sysml/test/integration/functions/binary/matrix_full_other/FullPowerTest.java
+++ 
b/src/test/java/org/apache/sysml/test/integration/functions/binary/matrix_full_other/FullPowerTest.java
@@ -271,13 +271,7 @@ public class FullPowerTest extends AutomatedTestBase
                }
        }
        
-       /**
-        * 
-        * @param name
-        * @param matrix
-        * @param includeR
-        */
-       private void writeScalarInputMatrixWithMTD(String name, double[][] 
matrix, boolean includeR) 
+       private static void writeScalarInputMatrixWithMTD(String name, 
double[][] matrix, boolean includeR) 
        {
                try
                {
@@ -301,26 +295,17 @@ public class FullPowerTest extends AutomatedTestBase
                }
        }
        
-       /**
-        * 
-        * @param name
-        * @return
-        */
-       private HashMap<CellIndex,Double> readScalarMatrixFromHDFS(String name) 
+       private static HashMap<CellIndex,Double> 
readScalarMatrixFromHDFS(String name) 
        {
                HashMap<CellIndex,Double> dmlfile = new 
HashMap<CellIndex,Double>();
-               try
-               {
+               try {
                        Double val = 
MapReduceTool.readDoubleFromHDFSFile(baseDirectory + OUTPUT_DIR + name);
                        dmlfile.put(new CellIndex(1,1), val);
                }
-               catch(IOException e)
-               {
+               catch(IOException e) {
                        e.printStackTrace();
                        throw new RuntimeException(e);
                }
-               
                return dmlfile;
        }
-               
 }
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/test/java/org/apache/sysml/test/integration/functions/codegen/CPlanComparisonTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/sysml/test/integration/functions/codegen/CPlanComparisonTest.java
 
b/src/test/java/org/apache/sysml/test/integration/functions/codegen/CPlanComparisonTest.java
index 01908b4..bc68e68 100644
--- 
a/src/test/java/org/apache/sysml/test/integration/functions/codegen/CPlanComparisonTest.java
+++ 
b/src/test/java/org/apache/sysml/test/integration/functions/codegen/CPlanComparisonTest.java
@@ -243,7 +243,7 @@ public class CPlanComparisonTest extends AutomatedTestBase
                        DataOpTypes.TRANSIENTREAD, "tmp", 77L, 7L, -1L, 1000L, 
1000L);
        }
        
-       private Hop createDataOp(String name, DataType dt) {
+       private static Hop createDataOp(String name, DataType dt) {
                return new DataOp(name, dt, ValueType.DOUBLE, 
                        DataOpTypes.TRANSIENTREAD, "tmp", 77L, 7L, -1L, 1000L, 
1000L);
        }

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/test/java/org/apache/sysml/test/integration/functions/codegen/CPlanVectorPrimitivesTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/sysml/test/integration/functions/codegen/CPlanVectorPrimitivesTest.java
 
b/src/test/java/org/apache/sysml/test/integration/functions/codegen/CPlanVectorPrimitivesTest.java
index 065233c..3b65281 100644
--- 
a/src/test/java/org/apache/sysml/test/integration/functions/codegen/CPlanVectorPrimitivesTest.java
+++ 
b/src/test/java/org/apache/sysml/test/integration/functions/codegen/CPlanVectorPrimitivesTest.java
@@ -646,7 +646,7 @@ public class CPlanVectorPrimitivesTest extends 
AutomatedTestBase
        }
        
        @SuppressWarnings("incomplete-switch")
-       private void testVectorAggPrimitive(UnaryType aggtype, InputType type1)
+       private static void testVectorAggPrimitive(UnaryType aggtype, InputType 
type1)
        {
                try {
                        //generate input data
@@ -684,7 +684,7 @@ public class CPlanVectorPrimitivesTest extends 
AutomatedTestBase
                }
        }
        
-       private void testVectorUnaryPrimitive(UnaryType utype, InputType type1)
+       private static void testVectorUnaryPrimitive(UnaryType utype, InputType 
type1)
        {
                try {
                        //generate input data
@@ -720,7 +720,7 @@ public class CPlanVectorPrimitivesTest extends 
AutomatedTestBase
                }
        }
        
-       private void testVectorBinaryPrimitive(BinType bintype, InputType 
type1, InputType type2)
+       private static void testVectorBinaryPrimitive(BinType bintype, 
InputType type1, InputType type2)
        {
                try {
                        //generate input data (scalar later derived if needed)

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicCompressionTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicCompressionTest.java
 
b/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicCompressionTest.java
index 2d1b592..dc6ca57 100644
--- 
a/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicCompressionTest.java
+++ 
b/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicCompressionTest.java
@@ -135,12 +135,7 @@ public class BasicCompressionTest extends AutomatedTestBase
                runCompressionTest(SparsityType.SPARSE, ValueType.CONST, false);
        }
        
-
-       /**
-        * 
-        * @param mb
-        */
-       private void runCompressionTest(SparsityType sptype, ValueType vtype, 
boolean compress)
+       private static void runCompressionTest(SparsityType sptype, ValueType 
vtype, boolean compress)
        {
                try
                {

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicGetValueTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicGetValueTest.java
 
b/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicGetValueTest.java
index 47c9fcc..c789b0f 100644
--- 
a/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicGetValueTest.java
+++ 
b/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicGetValueTest.java
@@ -137,12 +137,7 @@ public class BasicGetValueTest extends AutomatedTestBase
                runGetValueTest(SparsityType.SPARSE, ValueType.CONST, false);
        }
        
-
-       /**
-        * 
-        * @param mb
-        */
-       private void runGetValueTest(SparsityType sptype, ValueType vtype, 
boolean compress)
+       private static void runGetValueTest(SparsityType sptype, ValueType 
vtype, boolean compress)
        {
                try
                {

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicMatrixAppendTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicMatrixAppendTest.java
 
b/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicMatrixAppendTest.java
index 3bd6f0c..83a1164 100644
--- 
a/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicMatrixAppendTest.java
+++ 
b/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicMatrixAppendTest.java
@@ -136,12 +136,7 @@ public class BasicMatrixAppendTest extends 
AutomatedTestBase
                runMatrixAppendTest(SparsityType.SPARSE, ValueType.CONST, 
false);
        }
        
-
-       /**
-        * 
-        * @param mb
-        */
-       private void runMatrixAppendTest(SparsityType sptype, ValueType vtype, 
boolean compress)
+       private static void runMatrixAppendTest(SparsityType sptype, ValueType 
vtype, boolean compress)
        {
                try
                {

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicMatrixCentralMomentTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicMatrixCentralMomentTest.java
 
b/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicMatrixCentralMomentTest.java
index b3dd43b..9ea28e5 100644
--- 
a/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicMatrixCentralMomentTest.java
+++ 
b/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicMatrixCentralMomentTest.java
@@ -138,12 +138,7 @@ public class BasicMatrixCentralMomentTest extends 
AutomatedTestBase
                runMatrixAppendTest(SparsityType.SPARSE, ValueType.CONST, 
false);
        }
        
-
-       /**
-        * 
-        * @param mb
-        */
-       private void runMatrixAppendTest(SparsityType sptype, ValueType vtype, 
boolean compress)
+       private static void runMatrixAppendTest(SparsityType sptype, ValueType 
vtype, boolean compress)
        {
                try
                {

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicMatrixMultChainTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicMatrixMultChainTest.java
 
b/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicMatrixMultChainTest.java
index fe46107..3a7322f 100644
--- 
a/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicMatrixMultChainTest.java
+++ 
b/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicMatrixMultChainTest.java
@@ -225,12 +225,8 @@ public class BasicMatrixMultChainTest extends 
AutomatedTestBase
        public void testSparseConstDataWeightsNoCompression() {
                runMatrixMultChainTest(SparsityType.SPARSE, ValueType.CONST, 
ChainType.XtwXv, false);
        }
-
-       /**
-        * 
-        * @param mb
-        */
-       private void runMatrixMultChainTest(SparsityType sptype, ValueType 
vtype, ChainType ctype, boolean compress)
+       
+       private static void runMatrixMultChainTest(SparsityType sptype, 
ValueType vtype, ChainType ctype, boolean compress)
        {
                try
                {

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicMatrixQuantileTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicMatrixQuantileTest.java
 
b/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicMatrixQuantileTest.java
index 77fc471..1a2b697 100644
--- 
a/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicMatrixQuantileTest.java
+++ 
b/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicMatrixQuantileTest.java
@@ -135,12 +135,7 @@ public class BasicMatrixQuantileTest extends 
AutomatedTestBase
                runMatrixAppendTest(SparsityType.SPARSE, ValueType.CONST, 
false);
        }
        
-
-       /**
-        * 
-        * @param mb
-        */
-       private void runMatrixAppendTest(SparsityType sptype, ValueType vtype, 
boolean compress)
+       private static void runMatrixAppendTest(SparsityType sptype, ValueType 
vtype, boolean compress)
        {
                try
                {

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicMatrixTransposeSelfMultTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicMatrixTransposeSelfMultTest.java
 
b/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicMatrixTransposeSelfMultTest.java
index c00f25f..bd351b0 100644
--- 
a/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicMatrixTransposeSelfMultTest.java
+++ 
b/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicMatrixTransposeSelfMultTest.java
@@ -135,13 +135,8 @@ public class BasicMatrixTransposeSelfMultTest extends 
AutomatedTestBase
        public void testSparseConstDataNoCompression() {
                runTransposeSelfMatrixMultTest(SparsityType.SPARSE, 
ValueType.CONST, false);
        }
-       
 
-       /**
-        * 
-        * @param mb
-        */
-       private void runTransposeSelfMatrixMultTest(SparsityType sptype, 
ValueType vtype, boolean compress)
+       private static void runTransposeSelfMatrixMultTest(SparsityType sptype, 
ValueType vtype, boolean compress)
        {
                try
                {

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicMatrixVectorMultTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicMatrixVectorMultTest.java
 
b/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicMatrixVectorMultTest.java
index 5a19f6e..537bef6 100644
--- 
a/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicMatrixVectorMultTest.java
+++ 
b/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicMatrixVectorMultTest.java
@@ -140,12 +140,7 @@ public class BasicMatrixVectorMultTest extends 
AutomatedTestBase
                runMatrixVectorMultTest(SparsityType.SPARSE, ValueType.CONST, 
false);
        }
        
-
-       /**
-        * 
-        * @param mb
-        */
-       private void runMatrixVectorMultTest(SparsityType sptype, ValueType 
vtype, boolean compress)
+       private static void runMatrixVectorMultTest(SparsityType sptype, 
ValueType vtype, boolean compress)
        {
                try
                {

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicScalarOperationsSparseUnsafeTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicScalarOperationsSparseUnsafeTest.java
 
b/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicScalarOperationsSparseUnsafeTest.java
index 218739b..eee2d30 100644
--- 
a/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicScalarOperationsSparseUnsafeTest.java
+++ 
b/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicScalarOperationsSparseUnsafeTest.java
@@ -138,12 +138,7 @@ public class BasicScalarOperationsSparseUnsafeTest extends 
AutomatedTestBase
                runScalarOperationsTest(SparsityType.SPARSE, ValueType.CONST, 
false);
        }
        
-
-       /**
-        * 
-        * @param mb
-        */
-       private void runScalarOperationsTest(SparsityType sptype, ValueType 
vtype, boolean compress)
+       private static void runScalarOperationsTest(SparsityType sptype, 
ValueType vtype, boolean compress)
        {
                try
                {

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicScalarOperationsTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicScalarOperationsTest.java
 
b/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicScalarOperationsTest.java
index ed6f25c..7a84e71 100644
--- 
a/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicScalarOperationsTest.java
+++ 
b/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicScalarOperationsTest.java
@@ -138,12 +138,7 @@ public class BasicScalarOperationsTest extends 
AutomatedTestBase
                runScalarOperationsTest(SparsityType.SPARSE, ValueType.CONST, 
false);
        }
        
-
-       /**
-        * 
-        * @param mb
-        */
-       private void runScalarOperationsTest(SparsityType sptype, ValueType 
vtype, boolean compress)
+       private static void runScalarOperationsTest(SparsityType sptype, 
ValueType vtype, boolean compress)
        {
                try
                {

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicTransposeSelfLeftMatrixMultTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicTransposeSelfLeftMatrixMultTest.java
 
b/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicTransposeSelfLeftMatrixMultTest.java
index eb53024..47a4e6b 100644
--- 
a/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicTransposeSelfLeftMatrixMultTest.java
+++ 
b/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicTransposeSelfLeftMatrixMultTest.java
@@ -136,12 +136,7 @@ public class BasicTransposeSelfLeftMatrixMultTest extends 
AutomatedTestBase
                runTransposeSelfMatrixMultTest(SparsityType.SPARSE, 
ValueType.CONST, false);
        }
        
-
-       /**
-        * 
-        * @param mb
-        */
-       private void runTransposeSelfMatrixMultTest(SparsityType sptype, 
ValueType vtype, boolean compress)
+       private static void runTransposeSelfMatrixMultTest(SparsityType sptype, 
ValueType vtype, boolean compress)
        {
                try
                {

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicUnaryAggregateTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicUnaryAggregateTest.java
 
b/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicUnaryAggregateTest.java
index 7f87219..df54964 100644
--- 
a/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicUnaryAggregateTest.java
+++ 
b/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicUnaryAggregateTest.java
@@ -1032,11 +1032,7 @@ public class BasicUnaryAggregateTest extends 
AutomatedTestBase
                runUnaryAggregateTest(SparsityType.SPARSE, ValueType.CONST, 
AggType.MIN, false);
        }
        
-       /**
-        * 
-        * @param mb
-        */
-       private void runUnaryAggregateTest(SparsityType sptype, ValueType 
vtype, AggType aggtype, boolean compress)
+       private static void runUnaryAggregateTest(SparsityType sptype, 
ValueType vtype, AggType aggtype, boolean compress)
        {
                try
                {

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicVectorMatrixMultTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicVectorMatrixMultTest.java
 
b/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicVectorMatrixMultTest.java
index 69a8016..29832f1 100644
--- 
a/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicVectorMatrixMultTest.java
+++ 
b/src/test/java/org/apache/sysml/test/integration/functions/compress/BasicVectorMatrixMultTest.java
@@ -140,12 +140,7 @@ public class BasicVectorMatrixMultTest extends 
AutomatedTestBase
                runMatrixVectorMultTest(SparsityType.SPARSE, ValueType.CONST, 
false);
        }
        
-
-       /**
-        * 
-        * @param mb
-        */
-       private void runMatrixVectorMultTest(SparsityType sptype, ValueType 
vtype, boolean compress)
+       private static void runMatrixVectorMultTest(SparsityType sptype, 
ValueType vtype, boolean compress)
        {
                try
                {

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/test/java/org/apache/sysml/test/integration/functions/compress/CompressedSerializationTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/sysml/test/integration/functions/compress/CompressedSerializationTest.java
 
b/src/test/java/org/apache/sysml/test/integration/functions/compress/CompressedSerializationTest.java
index b0857a1..9afd85e 100644
--- 
a/src/test/java/org/apache/sysml/test/integration/functions/compress/CompressedSerializationTest.java
+++ 
b/src/test/java/org/apache/sysml/test/integration/functions/compress/CompressedSerializationTest.java
@@ -140,13 +140,7 @@ public class CompressedSerializationTest extends 
AutomatedTestBase
                runCompressedSerializationTest(SparsityType.SPARSE, 
ValueType.CONST, false);
        }
        
-       
-
-       /**
-        * 
-        * @param mb
-        */
-       private void runCompressedSerializationTest(SparsityType sptype, 
ValueType vtype, boolean compress)
+       private static void runCompressedSerializationTest(SparsityType sptype, 
ValueType vtype, boolean compress)
        {
                try
                {

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/test/java/org/apache/sysml/test/integration/functions/compress/LargeCompressionTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/sysml/test/integration/functions/compress/LargeCompressionTest.java
 
b/src/test/java/org/apache/sysml/test/integration/functions/compress/LargeCompressionTest.java
index d90118c..35d07e2 100644
--- 
a/src/test/java/org/apache/sysml/test/integration/functions/compress/LargeCompressionTest.java
+++ 
b/src/test/java/org/apache/sysml/test/integration/functions/compress/LargeCompressionTest.java
@@ -136,12 +136,7 @@ public class LargeCompressionTest extends AutomatedTestBase
                runCompressionTest(SparsityType.SPARSE, ValueType.CONST, false);
        }
        
-
-       /**
-        * 
-        * @param mb
-        */
-       private void runCompressionTest(SparsityType sptype, ValueType vtype, 
boolean compress)
+       private static void runCompressionTest(SparsityType sptype, ValueType 
vtype, boolean compress)
        {
                try
                {

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/test/java/org/apache/sysml/test/integration/functions/compress/LargeMatrixVectorMultTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/sysml/test/integration/functions/compress/LargeMatrixVectorMultTest.java
 
b/src/test/java/org/apache/sysml/test/integration/functions/compress/LargeMatrixVectorMultTest.java
index f5a5a4b..990845b 100644
--- 
a/src/test/java/org/apache/sysml/test/integration/functions/compress/LargeMatrixVectorMultTest.java
+++ 
b/src/test/java/org/apache/sysml/test/integration/functions/compress/LargeMatrixVectorMultTest.java
@@ -140,12 +140,7 @@ public class LargeMatrixVectorMultTest extends 
AutomatedTestBase
                runMatrixVectorMultTest(SparsityType.SPARSE, ValueType.CONST, 
false);
        }
        
-
-       /**
-        * 
-        * @param mb
-        */
-       private void runMatrixVectorMultTest(SparsityType sptype, ValueType 
vtype, boolean compress)
+       private static void runMatrixVectorMultTest(SparsityType sptype, 
ValueType vtype, boolean compress)
        {
                try
                {

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/test/java/org/apache/sysml/test/integration/functions/compress/LargeParMatrixVectorMultTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/sysml/test/integration/functions/compress/LargeParMatrixVectorMultTest.java
 
b/src/test/java/org/apache/sysml/test/integration/functions/compress/LargeParMatrixVectorMultTest.java
index 4b6d033..c5f9560 100644
--- 
a/src/test/java/org/apache/sysml/test/integration/functions/compress/LargeParMatrixVectorMultTest.java
+++ 
b/src/test/java/org/apache/sysml/test/integration/functions/compress/LargeParMatrixVectorMultTest.java
@@ -141,12 +141,7 @@ public class LargeParMatrixVectorMultTest extends 
AutomatedTestBase
                runMatrixVectorMultTest(SparsityType.SPARSE, ValueType.CONST, 
false);
        }
        
-
-       /**
-        * 
-        * @param mb
-        */
-       private void runMatrixVectorMultTest(SparsityType sptype, ValueType 
vtype, boolean compress)
+       private static void runMatrixVectorMultTest(SparsityType sptype, 
ValueType vtype, boolean compress)
        {
                try
                {

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/test/java/org/apache/sysml/test/integration/functions/compress/LargeParUnaryAggregateTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/sysml/test/integration/functions/compress/LargeParUnaryAggregateTest.java
 
b/src/test/java/org/apache/sysml/test/integration/functions/compress/LargeParUnaryAggregateTest.java
index 6d2585a..a566682 100644
--- 
a/src/test/java/org/apache/sysml/test/integration/functions/compress/LargeParUnaryAggregateTest.java
+++ 
b/src/test/java/org/apache/sysml/test/integration/functions/compress/LargeParUnaryAggregateTest.java
@@ -1034,12 +1034,8 @@ public class LargeParUnaryAggregateTest extends 
AutomatedTestBase
        public void testMinSparseConstDataNoCompression() {
                runUnaryAggregateTest(SparsityType.SPARSE, ValueType.CONST, 
AggType.MIN, false);
        }
-               
-       /**
-        * 
-        * @param mb
-        */
-       private void runUnaryAggregateTest(SparsityType sptype, ValueType 
vtype, AggType aggtype, boolean compress)
+       
+       private static void runUnaryAggregateTest(SparsityType sptype, 
ValueType vtype, AggType aggtype, boolean compress)
        {
                try
                {

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/test/java/org/apache/sysml/test/integration/functions/compress/LargeVectorMatrixMultTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/sysml/test/integration/functions/compress/LargeVectorMatrixMultTest.java
 
b/src/test/java/org/apache/sysml/test/integration/functions/compress/LargeVectorMatrixMultTest.java
index 4da0a79..982c0c1 100644
--- 
a/src/test/java/org/apache/sysml/test/integration/functions/compress/LargeVectorMatrixMultTest.java
+++ 
b/src/test/java/org/apache/sysml/test/integration/functions/compress/LargeVectorMatrixMultTest.java
@@ -140,12 +140,7 @@ public class LargeVectorMatrixMultTest extends 
AutomatedTestBase
                runMatrixVectorMultTest(SparsityType.SPARSE, ValueType.CONST, 
false);
        }
        
-
-       /**
-        * 
-        * @param mb
-        */
-       private void runMatrixVectorMultTest(SparsityType sptype, ValueType 
vtype, boolean compress)
+       private static void runMatrixVectorMultTest(SparsityType sptype, 
ValueType vtype, boolean compress)
        {
                try
                {

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/test/java/org/apache/sysml/test/integration/functions/compress/ParCompressionTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/sysml/test/integration/functions/compress/ParCompressionTest.java
 
b/src/test/java/org/apache/sysml/test/integration/functions/compress/ParCompressionTest.java
index a7b42d7..04152cd 100644
--- 
a/src/test/java/org/apache/sysml/test/integration/functions/compress/ParCompressionTest.java
+++ 
b/src/test/java/org/apache/sysml/test/integration/functions/compress/ParCompressionTest.java
@@ -138,12 +138,7 @@ public class ParCompressionTest extends AutomatedTestBase
                runCompressionTest(SparsityType.SPARSE, ValueType.CONST, false);
        }
        
-
-       /**
-        * 
-        * @param mb
-        */
-       private void runCompressionTest(SparsityType sptype, ValueType vtype, 
boolean compress)
+       private static void runCompressionTest(SparsityType sptype, ValueType 
vtype, boolean compress)
        {
                try
                {

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/test/java/org/apache/sysml/test/integration/functions/compress/ParMatrixMultChainTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/sysml/test/integration/functions/compress/ParMatrixMultChainTest.java
 
b/src/test/java/org/apache/sysml/test/integration/functions/compress/ParMatrixMultChainTest.java
index 4a9d4f5..993164b 100644
--- 
a/src/test/java/org/apache/sysml/test/integration/functions/compress/ParMatrixMultChainTest.java
+++ 
b/src/test/java/org/apache/sysml/test/integration/functions/compress/ParMatrixMultChainTest.java
@@ -216,12 +216,8 @@ public class ParMatrixMultChainTest extends 
AutomatedTestBase
        public void testSparseConstDataWeightsNoCompression() {
                runMatrixMultChainTest(SparsityType.SPARSE, ValueType.CONST, 
ChainType.XtwXv, false);
        }
-
-       /**
-        * 
-        * @param mb
-        */
-       private void runMatrixMultChainTest(SparsityType sptype, ValueType 
vtype, ChainType ctype, boolean compress)
+       
+       private static void runMatrixMultChainTest(SparsityType sptype, 
ValueType vtype, ChainType ctype, boolean compress)
        {
                try
                {

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/test/java/org/apache/sysml/test/integration/functions/compress/ParMatrixVectorMultTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/sysml/test/integration/functions/compress/ParMatrixVectorMultTest.java
 
b/src/test/java/org/apache/sysml/test/integration/functions/compress/ParMatrixVectorMultTest.java
index 30e57b4..c34216c 100644
--- 
a/src/test/java/org/apache/sysml/test/integration/functions/compress/ParMatrixVectorMultTest.java
+++ 
b/src/test/java/org/apache/sysml/test/integration/functions/compress/ParMatrixVectorMultTest.java
@@ -141,12 +141,7 @@ public class ParMatrixVectorMultTest extends 
AutomatedTestBase
                runMatrixVectorMultTest(SparsityType.SPARSE, ValueType.CONST, 
false);
        }
        
-
-       /**
-        * 
-        * @param mb
-        */
-       private void runMatrixVectorMultTest(SparsityType sptype, ValueType 
vtype, boolean compress)
+       private static void runMatrixVectorMultTest(SparsityType sptype, 
ValueType vtype, boolean compress)
        {
                try
                {

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/test/java/org/apache/sysml/test/integration/functions/compress/ParTransposeSelfLeftMatrixMultTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/sysml/test/integration/functions/compress/ParTransposeSelfLeftMatrixMultTest.java
 
b/src/test/java/org/apache/sysml/test/integration/functions/compress/ParTransposeSelfLeftMatrixMultTest.java
index a12588a..44e18c5 100644
--- 
a/src/test/java/org/apache/sysml/test/integration/functions/compress/ParTransposeSelfLeftMatrixMultTest.java
+++ 
b/src/test/java/org/apache/sysml/test/integration/functions/compress/ParTransposeSelfLeftMatrixMultTest.java
@@ -137,12 +137,7 @@ public class ParTransposeSelfLeftMatrixMultTest extends 
AutomatedTestBase
                runTransposeSelfMatrixMultTest(SparsityType.SPARSE, 
ValueType.CONST, false);
        }
        
-
-       /**
-        * 
-        * @param mb
-        */
-       private void runTransposeSelfMatrixMultTest(SparsityType sptype, 
ValueType vtype, boolean compress)
+       private static void runTransposeSelfMatrixMultTest(SparsityType sptype, 
ValueType vtype, boolean compress)
        {
                try
                {

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/test/java/org/apache/sysml/test/integration/functions/compress/ParUnaryAggregateTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/sysml/test/integration/functions/compress/ParUnaryAggregateTest.java
 
b/src/test/java/org/apache/sysml/test/integration/functions/compress/ParUnaryAggregateTest.java
index ebc1159..b883c21 100644
--- 
a/src/test/java/org/apache/sysml/test/integration/functions/compress/ParUnaryAggregateTest.java
+++ 
b/src/test/java/org/apache/sysml/test/integration/functions/compress/ParUnaryAggregateTest.java
@@ -1033,12 +1033,8 @@ public class ParUnaryAggregateTest extends 
AutomatedTestBase
        public void testMinSparseConstDataNoCompression() {
                runUnaryAggregateTest(SparsityType.SPARSE, ValueType.CONST, 
AggType.MIN, false);
        }
-               
-       /**
-        * 
-        * @param mb
-        */
-       private void runUnaryAggregateTest(SparsityType sptype, ValueType 
vtype, AggType aggtype, boolean compress)
+       
+       private static void runUnaryAggregateTest(SparsityType sptype, 
ValueType vtype, AggType aggtype, boolean compress)
        {
                try
                {

http://git-wip-us.apache.org/repos/asf/systemml/blob/e106966a/src/test/java/org/apache/sysml/test/integration/functions/compress/ParVectorMatrixMultTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/sysml/test/integration/functions/compress/ParVectorMatrixMultTest.java
 
b/src/test/java/org/apache/sysml/test/integration/functions/compress/ParVectorMatrixMultTest.java
index 5281404..1fee256 100644
--- 
a/src/test/java/org/apache/sysml/test/integration/functions/compress/ParVectorMatrixMultTest.java
+++ 
b/src/test/java/org/apache/sysml/test/integration/functions/compress/ParVectorMatrixMultTest.java
@@ -140,12 +140,7 @@ public class ParVectorMatrixMultTest extends 
AutomatedTestBase
                runMatrixVectorMultTest(SparsityType.SPARSE, ValueType.CONST, 
false);
        }
        
-
-       /**
-        * 
-        * @param mb
-        */
-       private void runMatrixVectorMultTest(SparsityType sptype, ValueType 
vtype, boolean compress)
+       private static void runMatrixVectorMultTest(SparsityType sptype, 
ValueType vtype, boolean compress)
        {
                try
                {

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