#108 Consistent package naming throughout the examples

lazy-loading/src/main/java/com/iluwatar/lazy/loading/Java8Holder.java

@@ -0,0 +1,34 @@
+package com.iluwatar.lazy.loading;
+
+import java.util.function.Supplier;
+
+/**
+ * 
+ * This lazy loader is thread safe and more efficient than HolderThreadSafe.
+ * It utilizes Java 8 functional interface Supplier<T> as Heavy factory.
+ *
+ */
+public class Java8Holder {
+	
+	private Supplier<Heavy> heavy = () -> createAndCacheHeavy();
+	
+	public Java8Holder() {
+		System.out.println("Java8Holder created");
+	}
+
+	public Heavy getHeavy() {
+		return heavy.get();
+	}
+	
+	private synchronized Heavy createAndCacheHeavy() {
+		class HeavyFactory implements Supplier<Heavy> {
+			private final Heavy heavyInstance = new Heavy();
+			@Override
+			public Heavy get() { return heavyInstance; }
+		}
+		if (!HeavyFactory.class.isInstance(heavy)) {
+			heavy = new HeavyFactory();
+		}
+		return heavy.get();
+	}
+}