Merge pull request #117 from matzon/master

implement hashCode and equals in JwtMap

src/main/java/io/jsonwebtoken/impl/JwtMap.java

@@ -155,4 +155,14 @@ public class JwtMap implements Map<String,Object> {
     public String toString() {
         return map.toString();
     }
+
+    @Override
+    public int hashCode() {
+        return map.hashCode();
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        return map.equals(obj);
+    }
 }

src/test/groovy/io/jsonwebtoken/impl/JwtMapTest.groovy

@@ -124,4 +124,28 @@ class JwtMapTest {
         def s = ['b', 'd']
         assertTrue m.values().containsAll(s) && s.containsAll(m.values())
     }
+
+    @Test
+    public void testEquals() throws Exception {
+        def m1 = new JwtMap();
+        m1.put("a", "a");
+
+        def m2 = new JwtMap();
+        m2.put("a", "a");
+
+        assertEquals(m1, m2);
+    }
+
+    @Test
+    public void testHashcode() throws Exception {
+        def m = new JwtMap();
+        def hashCodeEmpty = m.hashCode();
+
+        m.put("a", "b");
+        def hashCodeNonEmpty = m.hashCode();
+        assertTrue(hashCodeEmpty != hashCodeNonEmpty);
+
+        def identityHash = System.identityHashCode(m);
+        assertTrue(hashCodeNonEmpty != identityHash);
+    }
 }