@Async and SecurityContext (#872)

* @Async and Spring Security

* @Async with SecurityContext propagated

* Spring and @Async

* Simulated Annealing algorithm

* Rebase

* Rebase

core-java/src/test/java/com/baeldung/algorithms/SimulatedAnnealingTest.java

@@ -0,0 +1,13 @@
+package com.baeldung.algorithms;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+public class SimulatedAnnealingTest {
+
+	@Test
+	public void testSimulateAnnealing() {
+		Assert.assertTrue(SimulatedAnnealing.simulateAnnealing(10, 1000, 0.9) > 0);
+	}
+
+}