diff --git a/src/main/java/technology/tabula/Cell.java b/src/main/java/technology/tabula/Cell.java
index 3b42b4ca..d02c8c50 100644
--- a/src/main/java/technology/tabula/Cell.java
+++ b/src/main/java/technology/tabula/Cell.java
@@ -27,7 +27,7 @@ public String getText(boolean useLineReturns) {
 			return "";
 		}
 		StringBuilder sb = new StringBuilder();
-		Collections.sort(this.textElements, Rectangle.ILL_DEFINED_ORDER);
+		this.textElements.sort(Rectangle.ILL_DEFINED_ORDER);
 		double curTop = this.textElements.get(0).getTop();
 		for (TextChunk tc : this.textElements) {
 			if (useLineReturns && tc.getTop() > curTop) {
diff --git a/src/main/java/technology/tabula/RectangleSpatialIndex.java b/src/main/java/technology/tabula/RectangleSpatialIndex.java
index a39114a2..0e942545 100644
--- a/src/main/java/technology/tabula/RectangleSpatialIndex.java
+++ b/src/main/java/technology/tabula/RectangleSpatialIndex.java
@@ -32,8 +32,7 @@ public List<T> contains(Rectangle r) {
     }
     
     public List<T> intersects(Rectangle r) {
-        List rv = si.query(new Envelope(r.getLeft(), r.getRight(), r.getTop(), r.getBottom()));
-        return rv;
+      return si.query(new Envelope(r.getLeft(), r.getRight(), r.getTop(), r.getBottom()));
     }
     
     /**
diff --git a/src/main/java/technology/tabula/Ruling.java b/src/main/java/technology/tabula/Ruling.java
index cdab6c4f..213ce87f 100644
--- a/src/main/java/technology/tabula/Ruling.java
+++ b/src/main/java/technology/tabula/Ruling.java
@@ -40,9 +40,6 @@ public void normalize() {
         else if (Utils.within(angle, 90, 1) || Utils.within(angle, 270, 1)) { // almost vertical
             this.setLine(this.x1, this.y1, this.x1, this.y2);
         }
-//        else {
-//            System.out.println("oblique: " + this + " ("+ this.getAngle() + ")");
-//        }
     }
 
     public boolean vertical() {
@@ -231,11 +228,6 @@ public boolean equals(Object other) {
         return this.getP1().equals(o.getP1()) && this.getP2().equals(o.getP2());
     }
     
-    @Override
-    public int hashCode() {
-        return super.hashCode();
-    }
-    
     public float getTop() {
         return this.y1;
     }
diff --git a/src/main/java/technology/tabula/TextChunk.java b/src/main/java/technology/tabula/TextChunk.java
index 6e7722a3..9f5adbd5 100644
--- a/src/main/java/technology/tabula/TextChunk.java
+++ b/src/main/java/technology/tabula/TextChunk.java
@@ -209,11 +209,10 @@ public TextChunk[] splitAt(int i) {
             throw new IllegalArgumentException();
         }
 
-        TextChunk[] rv = new TextChunk[]{
-                new TextChunk(this.getTextElements().subList(0, i)),
-                new TextChunk(this.getTextElements().subList(i, this.getTextElements().size()))
-        };
-        return rv;
+      return new TextChunk[]{
+              new TextChunk(this.getTextElements().subList(0, i)),
+              new TextChunk(this.getTextElements().subList(i, this.getTextElements().size()))
+      };
     }
 
     /**
@@ -293,11 +292,8 @@ public boolean equals(Object obj) {
             return false;
         TextChunk other = (TextChunk) obj;
         if (textElements == null) {
-            if (other.textElements != null)
-                return false;
-        } else if (!textElements.equals(other.textElements))
-            return false;
-        return true;
+          return other.textElements == null;
+        } else return textElements.equals(other.textElements);
     }
 
     public static boolean allSameChar(List<TextChunk> textChunks) {
diff --git a/src/main/java/technology/tabula/extractors/BasicExtractionAlgorithm.java b/src/main/java/technology/tabula/extractors/BasicExtractionAlgorithm.java
index dcd01695..246c5342 100644
--- a/src/main/java/technology/tabula/extractors/BasicExtractionAlgorithm.java
+++ b/src/main/java/technology/tabula/extractors/BasicExtractionAlgorithm.java
@@ -74,7 +74,7 @@ public int compare(Ruling arg0, Ruling arg1) {
 
 				@Override
 				public int compare(TextChunk o1, TextChunk o2) {
-					return new java.lang.Float(o1.getLeft()).compareTo(o2.getLeft());
+					return Float.compare(o1.getLeft(), o2.getLeft());
 				}
 			});