Eliminate extra lines.

src/main/java/org/apache/commons/collections4/bloomfilter/AbstractBloomFilter.java

@@ -273,5 +273,4 @@ public abstract class AbstractBloomFilter implements BloomFilter {
         }
         return BitSet.valueOf(result).cardinality();
     }
-
 }

src/main/java/org/apache/commons/collections4/bloomfilter/BitSetBloomFilter.java

@@ -115,7 +115,6 @@ public class BitSetBloomFilter extends AbstractBloomFilter {
         }
     }
 
-
     @Override
     public void merge(final Hasher hasher) {
         verifyHasher(hasher);
@@ -127,7 +126,6 @@ public class BitSetBloomFilter extends AbstractBloomFilter {
         return bitSet.toString();
     }
 
-
     @Override
     public int xorCardinality(final BloomFilter other) {
         if (other instanceof BitSetBloomFilter) {
@@ -138,5 +136,4 @@ public class BitSetBloomFilter extends AbstractBloomFilter {
         }
         return super.xorCardinality(other);
     }
-
 }

src/main/java/org/apache/commons/collections4/bloomfilter/BloomFilter.java

@@ -121,8 +121,4 @@ public interface BloomFilter {
      * @return the cardinality of the result of {@code( this XOR other )}
      */
     int xorCardinality(BloomFilter other);
-
-
-
-
 }

src/main/java/org/apache/commons/collections4/bloomfilter/CountingBloomFilter.java

@@ -33,7 +33,6 @@ import org.apache.commons.collections4.bloomfilter.hasher.Hasher;
 import org.apache.commons.collections4.bloomfilter.hasher.Shape;
 import org.apache.commons.collections4.bloomfilter.hasher.StaticHasher;
 
-
 /**
  * A counting Bloom filter.
  * This Bloom filter maintains a count of the number of times a bit has been

src/main/java/org/apache/commons/collections4/bloomfilter/HasherBloomFilter.java

@@ -139,5 +139,4 @@ public class HasherBloomFilter extends AbstractBloomFilter {
             hasher.getBits(getShape()));
         this.hasher = new StaticHasher(iter, getShape());
     }
-
 }

src/main/java/org/apache/commons/collections4/bloomfilter/SetOperations.java

@@ -69,7 +69,6 @@ public final class SetOperations {
         return estimateSize(first) - estimateUnionSize(first,second) + estimateSize(second);
     }
 
-
     /**
      * Estimates the number of items in the Bloom filter based on the shape and the number
      * of bits that are enabled.

src/main/java/org/apache/commons/collections4/bloomfilter/hasher/DynamicHasher.java

@@ -176,5 +176,4 @@ public class DynamicHasher implements Hasher {
     public boolean isEmpty() {
         return buffers.isEmpty();
     }
-
 }

src/main/java/org/apache/commons/collections4/bloomfilter/hasher/HashFunction.java

@@ -23,7 +23,6 @@ package org.apache.commons.collections4.bloomfilter.hasher;
  */
 public interface HashFunction extends HashFunctionIdentity {
 
-
     /**
      * Applies the hash function to the buffer.
      *
@@ -32,5 +31,4 @@ public interface HashFunction extends HashFunctionIdentity {
      * @return the long value of the hash.
      */
     long apply(byte[] buffer, int seed);
-
 }

src/main/java/org/apache/commons/collections4/bloomfilter/hasher/HashFunctionIdentity.java

@@ -157,5 +157,4 @@ public interface HashFunctionIdentity {
      * @return signedness of this function.
      */
     Signedness getSignedness();
-
 }

src/main/java/org/apache/commons/collections4/bloomfilter/hasher/HashFunctionIdentityImpl.java

@@ -84,5 +84,4 @@ public final class HashFunctionIdentityImpl implements HashFunctionIdentity {
     public Signedness getSignedness() {
         return signedness;
     }
-
 }

src/main/java/org/apache/commons/collections4/bloomfilter/hasher/Hasher.java

@@ -19,7 +19,6 @@ package org.apache.commons.collections4.bloomfilter.hasher;
 
 import java.util.PrimitiveIterator;
 
-
 /**
  * The class that performs hashing.
  * <p>

src/main/java/org/apache/commons/collections4/bloomfilter/hasher/function/MD5Cyclic.java

@@ -108,5 +108,4 @@ public final class MD5Cyclic implements HashFunction {
     public Signedness getSignedness() {
         return Signedness.SIGNED;
     }
-
 }

src/main/java/org/apache/commons/collections4/bloomfilter/hasher/function/Murmur128x86Cyclic.java

@@ -53,7 +53,6 @@ public final class Murmur128x86Cyclic implements HashFunction {
         signature = apply(HashFunctionIdentity.prepareSignatureBuffer(this), 0);
     }
 
-
     @Override
     public long apply(final byte[] buffer, final int seed) {
         if (parts == null || seed == 0) {
@@ -88,5 +87,4 @@ public final class Murmur128x86Cyclic implements HashFunction {
     public Signedness getSignedness() {
         return Signedness.SIGNED;
     }
-
 }

src/main/java/org/apache/commons/collections4/bloomfilter/hasher/function/ObjectsHashIterative.java

@@ -21,7 +21,6 @@ import java.util.Arrays;
 import org.apache.commons.collections4.bloomfilter.hasher.HashFunction;
 import org.apache.commons.collections4.bloomfilter.hasher.HashFunctionIdentity;
 
-
 /**
  * An implementation of HashFunction that
  * performs {@code Objects.hash} hashing using a signed iterative method.