Java Design patterns

Java Design Patterns/creational/singleton/breakit/BreakSingletonUsingReflection.java

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+package javadevjournal.design.creational.singleton.breakit;
+
+import java.lang.reflect.Constructor;
+
+/**
+ * @author Kunwar
+ */
+public class BreakSingletonUsingReflection {
+    public static void main(String[] args) {
+        Singleton singleton1 = Singleton.instance;
+        Singleton singleton2 = null;
+        try {
+            Constructor[] constructors =
+                    Singleton.class.getDeclaredConstructors();
+            for (Constructor constructor : constructors) {
+                // Below code will destroy the singleton pattern
+                constructor.setAccessible(true);
+                singleton2 = (Singleton) constructor.newInstance();
+                break;
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        System.out.println("instance1.hashCode(): " + singleton1.hashCode());
+        System.out.println("instance2.hashCode(): " + singleton2.hashCode());
+    }
+}