Ports IllegalArgumentException : Can't decide wich method to use fix

This refers to #159

src/main/java/org/ognl/OgnlRuntime.java

@@ -1453,6 +1453,10 @@ private static MatchingMethod findBestMethod(List<Method> methods, Class<?> type
                                     scoreOther += 100;    // current wins...
                                 } else if (moClass == argClass) {
                                     scoreCurr += 100;    // other wins...
+                                } else if (mcClass.isAssignableFrom(moClass)) {
+                                    scoreOther += 50;	// current wins...
+                                } else if (moClass.isAssignableFrom(moClass)) {
+                                    scoreCurr += 50;	// other wins...
                                 } else {
                                     // both items can't be assigned to each other..
                                     // TODO: if this happens we have to put some weight on the inheritance...

src/test/java/org/ognl/OgnlRuntimeTest.java

@@ -8,6 +8,7 @@
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.Date;
+import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.concurrent.Callable;
@@ -609,4 +610,13 @@ public Long get() {
         Assert.assertEquals(3L,
                 Ognl.getValue("get()", defaultContext, new C1()));
     }
+
+    @Test
+    public void shouldSameMethodOfDifferentParentsBeCallable() throws Exception {
+        Map<String, Object> root = new HashMap<>();
+        root.put("d1", java.sql.Date.valueOf("2022-01-01"));
+        root.put("d2", java.sql.Date.valueOf("2022-01-02"));
+        Assert.assertEquals(-1, Ognl.getValue("d1.compareTo(d2)", defaultContext, root));
+    }
+
 }