Added serialization test for CopyOnWriteHashMap

java/com.sap.sailing.domain.test/src/com/sap/sailing/domain/test/CopyOnWriteHashMapSerializationTest.java

@@ -0,0 +1,44 @@
+package com.sap.sailing.domain.test;
+
+import static org.junit.Assert.assertEquals;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.ObjectInputStream;
+import java.io.ObjectOutputStream;
+
+import org.junit.Before;
+import org.junit.Test;
+
+import com.sap.sse.concurrent.CopyOnWriteHashMap;
+
+public class CopyOnWriteHashMapSerializationTest {
+    
+    private CopyOnWriteHashMap<String, String> expected;
+    
+    @Before
+    public void setUp() {
+        expected = new CopyOnWriteHashMap<>();
+        expected.put("a", "1");
+        expected.put("b", "2");
+    }
+    
+    @Test
+    public void testSerializationOfCopyOnWriteHashMap() throws IOException, ClassNotFoundException {
+        ByteArrayOutputStream baos = new ByteArrayOutputStream();
+        ObjectOutputStream ous = new ObjectOutputStream(baos);
+        ous.writeObject(expected);
+        ous.close();
+        ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
+        ObjectInputStream ois = new ObjectInputStream(bais);
+        
+        @SuppressWarnings("unchecked")
+        CopyOnWriteHashMap<String, String> deserializedInstance = (CopyOnWriteHashMap<String, String>) ois.readObject();
+        assertEquals(expected, deserializedInstance);
+        
+        assertEquals(-1, ois.read(new byte[1]));
+        ois.close();
+    }
+
+}