Work on Object Pool example.

object-pool/src/main/java/com/iluwatar/ObjectPool.java

@@ -0,0 +1,14 @@
+package com.iluwatar;
+
+public abstract class ObjectPool<T> {
+
+	protected abstract T create();
+	
+	public synchronized T checkOut() {
+		return null;
+	}
+	
+	public synchronized void checkIn(T instance) {
+		
+	}
+}

object-pool/src/main/java/com/iluwatar/Oliphaunt.java

@@ -0,0 +1,5 @@
+package com.iluwatar;
+
+public class Oliphaunt {
+
+}

object-pool/src/main/java/com/iluwatar/OliphauntPool.java

@@ -0,0 +1,9 @@
+package com.iluwatar;
+
+public class OliphauntPool extends ObjectPool<Oliphaunt> {
+
+	@Override
+	protected Oliphaunt create() {
+		return new Oliphaunt();
+	}
+}