Remove unused imports
diff --git a/src/test/java/org/apache/datasketches/pig/theta/AexcludeBTest.java b/src/test/java/org/apache/datasketches/pig/theta/AexcludeBTest.java
index 5700669..6cb6626 100644
--- a/src/test/java/org/apache/datasketches/pig/theta/AexcludeBTest.java
+++ b/src/test/java/org/apache/datasketches/pig/theta/AexcludeBTest.java
@@ -34,9 +34,6 @@
 import org.testng.Assert;
 import org.testng.annotations.Test;
 
-import org.apache.datasketches.pig.theta.AexcludeB;
-import org.apache.datasketches.pig.theta.Estimate;
-
 @SuppressWarnings("javadoc")
 public class AexcludeBTest {
 
diff --git a/src/test/java/org/apache/datasketches/pig/theta/DataToSketchTest.java b/src/test/java/org/apache/datasketches/pig/theta/DataToSketchTest.java
index c579d70..b02ff25 100644
--- a/src/test/java/org/apache/datasketches/pig/theta/DataToSketchTest.java
+++ b/src/test/java/org/apache/datasketches/pig/theta/DataToSketchTest.java
@@ -28,6 +28,9 @@
 
 import java.io.IOException;
 
+import org.apache.datasketches.SketchesArgumentException;
+import org.apache.datasketches.Util;
+import org.apache.datasketches.theta.Sketch;
 import org.apache.pig.Accumulator;
 import org.apache.pig.EvalFunc;
 import org.apache.pig.FuncSpec;
@@ -42,12 +45,6 @@
 import org.testng.Assert;
 import org.testng.annotations.Test;
 
-import org.apache.datasketches.SketchesArgumentException;
-import org.apache.datasketches.Util;
-import org.apache.datasketches.pig.theta.DataToSketch;
-import org.apache.datasketches.pig.theta.Estimate;
-import org.apache.datasketches.theta.Sketch;
-
 @SuppressWarnings("javadoc")
 public class DataToSketchTest {
   private String udfName = "org.apache.datasketches.pig.theta.DataToSketch";
diff --git a/src/test/java/org/apache/datasketches/pig/theta/ErrorBoundsTest.java b/src/test/java/org/apache/datasketches/pig/theta/ErrorBoundsTest.java
index 3df5436..a6a3608 100644
--- a/src/test/java/org/apache/datasketches/pig/theta/ErrorBoundsTest.java
+++ b/src/test/java/org/apache/datasketches/pig/theta/ErrorBoundsTest.java
@@ -38,8 +38,6 @@
 import org.testng.Assert;
 import org.testng.annotations.Test;
 
-import org.apache.datasketches.pig.theta.ErrorBounds;
-
 @SuppressWarnings("javadoc")
 public class ErrorBoundsTest {
 
@@ -91,9 +89,9 @@
     double epsilon2SD = 2.0 / Math.sqrt(2 * nomEntries);
 
     //System.out.println(lb+"\t"+est+"\t"+ub);
-    assertTrue(((2 * nomEntries) < ub) && ((2 * nomEntries) > lb));
-    assertTrue(Math.abs((ub / (est + (epsilon2SD * est))) - 1) < .01);
-    assertTrue(Math.abs((lb / (est - (epsilon2SD * est))) - 1) < .01);
+    assertTrue(2 * nomEntries < ub && 2 * nomEntries > lb);
+    assertTrue(Math.abs(ub / (est + epsilon2SD * est) - 1) < .01);
+    assertTrue(Math.abs(lb / (est - epsilon2SD * est) - 1) < .01);
   }
 
   @Test
@@ -115,9 +113,9 @@
     double epsilon2SD = 2.0 / Math.sqrt(2 * nomEntries);
 
     //System.out.println(lb+"\t"+est+"\t"+ub);
-    assertTrue(((2 * nomEntries) < ub) && ((2 * nomEntries) > lb));
-    assertTrue(Math.abs((ub / (est + (epsilon2SD * est))) - 1) < .01);
-    assertTrue(Math.abs((lb / (est - (epsilon2SD * est))) - 1) < .01);
+    assertTrue(2 * nomEntries < ub && 2 * nomEntries > lb);
+    assertTrue(Math.abs(ub / (est + epsilon2SD * est) - 1) < .01);
+    assertTrue(Math.abs(lb / (est - epsilon2SD * est) - 1) < .01);
   }
 
   @Test
diff --git a/src/test/java/org/apache/datasketches/pig/theta/EstimateTest.java b/src/test/java/org/apache/datasketches/pig/theta/EstimateTest.java
index 760db9f..6f19083 100644
--- a/src/test/java/org/apache/datasketches/pig/theta/EstimateTest.java
+++ b/src/test/java/org/apache/datasketches/pig/theta/EstimateTest.java
@@ -32,8 +32,6 @@
 import org.apache.pig.data.TupleFactory;
 import org.testng.annotations.Test;
 
-import org.apache.datasketches.pig.theta.Estimate;
-
 @SuppressWarnings("javadoc")
 public class EstimateTest {
 
diff --git a/src/test/java/org/apache/datasketches/pig/theta/IntersectTest.java b/src/test/java/org/apache/datasketches/pig/theta/IntersectTest.java
index 575eaa7..23ec4ed 100644
--- a/src/test/java/org/apache/datasketches/pig/theta/IntersectTest.java
+++ b/src/test/java/org/apache/datasketches/pig/theta/IntersectTest.java
@@ -27,6 +27,7 @@
 
 import java.io.IOException;
 
+import org.apache.datasketches.SketchesStateException;
 import org.apache.pig.Accumulator;
 import org.apache.pig.EvalFunc;
 import org.apache.pig.data.BagFactory;
@@ -39,10 +40,6 @@
 import org.testng.Assert;
 import org.testng.annotations.Test;
 
-import org.apache.datasketches.SketchesStateException;
-import org.apache.datasketches.pig.theta.Estimate;
-import org.apache.datasketches.pig.theta.Intersect;
-
 @SuppressWarnings("javadoc")
 public class IntersectTest {
 
diff --git a/src/test/java/org/apache/datasketches/pig/theta/SketchToStringTest.java b/src/test/java/org/apache/datasketches/pig/theta/SketchToStringTest.java
index 4324b8f..9a74e27 100644
--- a/src/test/java/org/apache/datasketches/pig/theta/SketchToStringTest.java
+++ b/src/test/java/org/apache/datasketches/pig/theta/SketchToStringTest.java
@@ -33,8 +33,6 @@
 import org.apache.pig.data.TupleFactory;
 import org.testng.annotations.Test;
 
-import org.apache.datasketches.pig.theta.SketchToString;
-
 @SuppressWarnings("javadoc")
 public class SketchToStringTest {
 
diff --git a/src/test/java/org/apache/datasketches/pig/theta/UnionTest.java b/src/test/java/org/apache/datasketches/pig/theta/UnionTest.java
index d0dc939..80041d2 100644
--- a/src/test/java/org/apache/datasketches/pig/theta/UnionTest.java
+++ b/src/test/java/org/apache/datasketches/pig/theta/UnionTest.java
@@ -27,6 +27,7 @@
 
 import java.io.IOException;
 
+import org.apache.datasketches.SketchesArgumentException;
 import org.apache.pig.Accumulator;
 import org.apache.pig.EvalFunc;
 import org.apache.pig.data.BagFactory;
@@ -39,10 +40,6 @@
 import org.testng.Assert;
 import org.testng.annotations.Test;
 
-import org.apache.datasketches.SketchesArgumentException;
-import org.apache.datasketches.pig.theta.Estimate;
-import org.apache.datasketches.pig.theta.Union;
-
 @SuppressWarnings("javadoc")
 public class UnionTest {
 //  private String udfName = "org.apache.datasketches.pig.theta.SketchUnions";