[tests] Improved Java testing to check method overload support.

tests/common/java/mono/embeddinator/Tests.java

@@ -209,6 +209,17 @@ public class Tests {
         assertEquals(0, collection.getCount());
     }
 
+    @Test
+    public void testDuplicatedMethods() {
+        DuplicateMethods dup = new DuplicateMethods();
+        dup.doIt();
+        dup.doIt(0);
+        dup.doIt("");
+        dup.doIt(0, 0);
+        dup.find("");
+        dup.find("", "");
+    }
+
     @Test
     public void testStructs() {
         Point p1 = new Point(1.0f, -1.0f);