Remove extra blank lines

src/main/java/org/apache/commons/pool3/impl/BaseGenericObjectPool.java

@@ -1772,5 +1772,4 @@ final void updateStatsReturn(final Duration activeTime) {
         activeTimes.add(activeTime);
     }
 
-
 }

src/main/java/org/apache/commons/pool3/impl/BaseObjectPoolConfig.java

@@ -204,7 +204,6 @@ public abstract class BaseObjectPoolConfig<T> extends BaseObject implements Clon
 
     private String jmxNameBase = DEFAULT_JMX_NAME_BASE;
 
-
     /**
      * Gets the value for the {@code blockWhenExhausted} configuration attribute
      * for pools created with this configuration instance.

src/main/java/org/apache/commons/pool3/impl/DefaultPooledObject.java

@@ -296,5 +296,4 @@ public void use() {
         usedBy.fillInStackTrace();
     }
 
-
 }

src/main/java/org/apache/commons/pool3/impl/DefaultPooledObjectInfo.java

@@ -65,7 +65,6 @@ public long getLastBorrowTime() {
         return pooledObject.getLastBorrowInstant().toEpochMilli();
     }
 
-
     @Override
     public String getLastBorrowTimeFormatted() {
         return getTimeMillisFormatted(getLastBorrowTime());

src/main/java/org/apache/commons/pool3/impl/EvictionTimer.java

@@ -27,7 +27,6 @@
 import java.util.concurrent.ThreadFactory;
 import java.util.concurrent.TimeUnit;
 
-
 /**
  * Provides a shared idle object eviction timer for all pools.
  * <p>
@@ -120,7 +119,6 @@ public void run() {
         }
     }
 
-
     /** Executor instance */
     private static ScheduledThreadPoolExecutor executor; //@GuardedBy("EvictionTimer.class")
 

src/main/java/org/apache/commons/pool3/impl/GenericKeyedObjectPool.java

@@ -201,7 +201,6 @@ public String toString() {
     private volatile int minIdlePerKey =
             GenericKeyedObjectPoolConfig.DEFAULT_MIN_IDLE_PER_KEY;
 
-
     private volatile int maxTotalPerKey =
             GenericKeyedObjectPoolConfig.DEFAULT_MAX_TOTAL_PER_KEY;
 
@@ -237,7 +236,6 @@ public String toString() {
 
     private Iterator<K> evictionKeyIterator; // @GuardedBy("evictionLock")
 
-
     private K evictionKey; // @GuardedBy("evictionLock")
 
     /**
@@ -681,7 +679,6 @@ public void clearOldest() {
         }
     }
 
-
     /**
      * Closes the keyed object pool. Once the pool is closed,
      * {@link #borrowObject(Object)} will fail with IllegalStateException, but
@@ -721,7 +718,6 @@ public void close() {
         }
     }
 
-
     /**
      * Creates a new pooled object or null.
      *
@@ -913,7 +909,6 @@ private boolean destroy(final K key, final PooledObject<T> toDestroy, final bool
         }
     }
 
-
     @Override
     void ensureMinIdle() throws E {
         final int minIdlePerKeySave = getMinIdlePerKey();
@@ -1114,7 +1109,6 @@ public void evict() throws E {
         }
     }
 
-
     /**
      * Gets a reference to the factory used to create, destroy and validate
      * the objects used by this pool.

src/main/java/org/apache/commons/pool3/impl/GenericKeyedObjectPoolConfig.java

@@ -54,7 +54,6 @@ public class GenericKeyedObjectPoolConfig<T> extends BaseObjectPoolConfig<T> {
      */
     public static final int DEFAULT_MAX_IDLE_PER_KEY = 8;
 
-
     private int minIdlePerKey = DEFAULT_MIN_IDLE_PER_KEY;
 
     private int maxIdlePerKey = DEFAULT_MAX_IDLE_PER_KEY;

src/main/java/org/apache/commons/pool3/impl/GenericObjectPoolConfig.java

@@ -48,7 +48,6 @@ public class GenericObjectPoolConfig<T> extends BaseObjectPoolConfig<T> {
      */
     public static final int DEFAULT_MIN_IDLE = 0;
 
-
     private int maxTotal = DEFAULT_MAX_TOTAL;
 
     private int maxIdle = DEFAULT_MAX_IDLE;
@@ -78,7 +77,6 @@ public int getMaxIdle() {
         return maxIdle;
     }
 
-
     /**
      * Gets the value for the {@code maxTotal} configuration attribute
      * for pools created with this configuration instance.
@@ -105,7 +103,6 @@ public int getMinIdle() {
         return minIdle;
     }
 
-
     /**
      * Sets the value for the {@code maxIdle} configuration attribute for
      * pools created with this configuration instance.

src/main/java/org/apache/commons/pool3/impl/LinkedBlockingDeque.java

@@ -327,7 +327,6 @@ public LinkedBlockingDeque(final boolean fairness) {
         this(Integer.MAX_VALUE, fairness);
     }
 
-
     // Basic linking and unlinking operations, called only while holding lock
 
     /**

src/main/java/org/apache/commons/pool3/impl/SoftReferenceObjectPool.java

@@ -61,7 +61,6 @@ public class SoftReferenceObjectPool<T, E extends Exception> extends BaseObjectP
     /** Total number of instances that have been destroyed */
     private long destroyCount; // @GuardedBy("this")
 
-
     /** Total number of instances that have been created */
     private long createCount; // @GuardedBy("this")
 

src/main/java/org/apache/commons/pool3/proxy/BaseProxyHandler.java

@@ -33,7 +33,6 @@ class BaseProxyHandler<T> {
     private volatile T pooledObject;
     private final UsageTracking<T> usageTracking;
 
-
     /**
      * Constructs a new wrapper for the given pooled object.
      *
@@ -47,7 +46,6 @@ class BaseProxyHandler<T> {
         this.usageTracking = usageTracking;
     }
 
-
     /**
      * Disable the proxy wrapper. Called when the object has been returned to
      * the pool. Further use of the wrapper should result in an
@@ -61,7 +59,6 @@ T disableProxy() {
         return result;
     }
 
-
     /**
      * Invoke the given method on the wrapped object.
      *
@@ -79,7 +76,6 @@ Object doInvoke(final Method method, final Object[] args) throws Throwable {
         return method.invoke(object, args);
     }
 
-
     /**
      * Gets the wrapped, pooled object.
      *
@@ -89,7 +85,6 @@ T getPooledObject() {
         return pooledObject;
     }
 
-
     /**
      * @since 2.4.3
      */
@@ -105,7 +100,6 @@ public String toString() {
         return builder.toString();
     }
 
-
     /**
      * Check that the proxy is still valid (i.e. that {@link #disableProxy()}
      * has not been called).

src/main/java/org/apache/commons/pool3/proxy/CglibProxyHandler.java

@@ -33,7 +33,6 @@
 final class CglibProxyHandler<T> extends BaseProxyHandler<T>
         implements MethodInterceptor {
 
-
     /**
      * Constructs a CGLib proxy instance.
      *

src/main/java/org/apache/commons/pool3/proxy/CglibProxySource.java

@@ -54,7 +54,6 @@ public T createProxy(final T pooledObject, final UsageTracking<T> usageTracking)
         return (T) enhancer.create();
     }
 
-
     @Override
     public T resolveProxy(final T proxy) {
         @SuppressWarnings("unchecked")

src/main/java/org/apache/commons/pool3/proxy/JdkProxyHandler.java

@@ -43,7 +43,6 @@ final class JdkProxyHandler<T> extends BaseProxyHandler<T>
         super(pooledObject, usageTracking);
     }
 
-
     @Override
     public Object invoke(final Object proxy, final Method method, final Object[] args)
             throws Throwable {

src/main/java/org/apache/commons/pool3/proxy/ProxiedKeyedObjectPool.java

@@ -39,7 +39,6 @@ public class ProxiedKeyedObjectPool<K, V, E extends Exception> implements KeyedO
     private final KeyedObjectPool<K, V, E> pool;
     private final ProxySource<V> proxySource;
 
-
     /**
      * Constructs a new proxied object pool.
      *
@@ -52,7 +51,6 @@ public ProxiedKeyedObjectPool(final KeyedObjectPool<K, V, E> pool,
         this.proxySource = proxySource;
     }
 
-
     @Override
     public void addObject(final K key) throws E, IllegalStateException,
             UnsupportedOperationException {

src/main/java/org/apache/commons/pool3/proxy/ProxiedObjectPool.java

@@ -37,7 +37,6 @@ public class ProxiedObjectPool<T, E extends Exception> implements ObjectPool<T,
     private final ObjectPool<T, E> pool;
     private final ProxySource<T> proxySource;
 
-
     /**
      * Constructs a new proxied object pool.
      *
@@ -54,7 +53,6 @@ public void addObject() throws E, IllegalStateException, UnsupportedOperationExc
         pool.addObject();
     }
 
-
     @SuppressWarnings("unchecked")
     @Override
     public T borrowObject() throws E, NoSuchElementException, IllegalStateException {
@@ -65,37 +63,31 @@ public T borrowObject() throws E, NoSuchElementException, IllegalStateException
         return proxySource.createProxy(pool.borrowObject(), usageTracking);
     }
 
-
     @Override
     public void clear() throws E, UnsupportedOperationException {
         pool.clear();
     }
 
-
     @Override
     public void close() {
         pool.close();
     }
 
-
     @Override
     public int getNumActive() {
         return pool.getNumActive();
     }
 
-
     @Override
     public int getNumIdle() {
         return pool.getNumIdle();
     }
 
-
     @Override
     public void invalidateObject(final T proxy) throws E {
         pool.invalidateObject(proxySource.resolveProxy(proxy));
     }
 
-
     @Override
     public void returnObject(final T proxy) throws E {
         pool.returnObject(proxySource.resolveProxy(proxy));

src/test/java/org/apache/commons/pool3/AbstractTestKeyedObjectPool.java

@@ -577,7 +577,6 @@ public void testKPOFBorrowObjectUsages() {
         expectedMethods.add(new MethodCall("makeObject", KEY));
         assertEquals(expectedMethods, factory.getMethodCalls());
 
-
         // when activateObject fails in borrowObject, a new object should be borrowed/created
         reset(pool, factory, expectedMethods);
         pool.addObject(KEY);
@@ -637,7 +636,6 @@ public void testKPOFClearUsages() {
         pool.close();
     }
 
-
     @Test
     public void testKPOFCloseUsages() {
         final FailingKeyedPooledObjectFactory factory = new FailingKeyedPooledObjectFactory();

src/test/java/org/apache/commons/pool3/AbstractTestObjectPool.java

@@ -16,7 +16,6 @@
  */
 package org.apache.commons.pool3;
 
-
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertThrows;
 import static org.junit.jupiter.api.Assertions.assertTrue;
@@ -198,7 +197,6 @@ public void testPOFBorrowObjectUsages() throws Exception {
         expectedMethods.add(new MethodCall("makeObject"));
         assertEquals(expectedMethods, factory.getMethodCalls());
 
-
         // when activateObject fails in borrowObject, a new object should be borrowed/created
         reset(pool, factory, expectedMethods);
         pool.addObject();
@@ -273,7 +271,6 @@ public void testPOFCloseUsages() throws Exception {
         pool.addObjects(5);
         pool.close();
 
-
         // Test exception handling close should swallow failures
         try {
             pool = makeEmptyPool(factory);

src/test/java/org/apache/commons/pool3/PoolTest.java

@@ -17,7 +17,6 @@
 
 package org.apache.commons.pool3;
 
-
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertFalse;
 

src/test/java/org/apache/commons/pool3/impl/AtomicIntegerFactory.java

@@ -74,38 +74,33 @@ public void setCreateLatency(final long createLatency) {
         this.createLatency = createLatency;
     }
 
-
     /**
      * @param destroyLatency the destroyLatency to set
      */
     public void setDestroyLatency(final long destroyLatency) {
         this.destroyLatency = destroyLatency;
     }
 
-
     /**
      * @param passivateLatency the passivateLatency to set
      */
     public void setPassivateLatency(final long passivateLatency) {
         this.passivateLatency = passivateLatency;
     }
 
-
     /**
      * @param validateLatency the validateLatency to set
      */
     public void setValidateLatency(final long validateLatency) {
         this.validateLatency = validateLatency;
     }
 
-
     @Override
     public boolean validateObject(final PooledObject<AtomicInteger> instance) {
         Waiter.sleepQuietly(validateLatency);
         return instance.getObject().intValue() == 1;
     }
 
-
     @Override
     public PooledObject<AtomicInteger> wrap(final AtomicInteger integer) {
         return new DefaultPooledObject<>(integer);

src/test/java/org/apache/commons/pool3/impl/TestEvictionTimer.java

@@ -16,7 +16,6 @@
  */
 package org.apache.commons.pool3.impl;
 
-
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertFalse;
 import static org.junit.jupiter.api.Assertions.assertNull;