fix code

hutool-core/src/main/java/cn/hutool/core/reflect/MethodUtil.java

@@ -198,18 +198,20 @@ public class MethodUtil {
 			return null;
 		}
 
+		Method res = null;
 		final Method[] methods = getMethods(clazz);
 		if (ArrayUtil.isNotEmpty(methods)) {
 			for (final Method method : methods) {
 				if (StrUtil.equals(methodName, method.getName(), ignoreCase)
 						&& ClassUtil.isAllAssignableFrom(method.getParameterTypes(), paramTypes)
 						//排除桥接方法，pr#1965@Github
-						&& false == method.isBridge()) {
-					return method;
+						//排除协变桥接方法，pr#1965@Github
+						&& (res == null || res.getReturnType().isAssignableFrom(method.getReturnType()))) {
+					res = method;
 				}
 			}
 		}
-		return null;
+		return res;
 	}
 
 	/**
@@ -265,17 +267,18 @@ public class MethodUtil {
 			return null;
 		}
 
+		Method res = null;
 		final Method[] methods = getMethods(clazz);
 		if (ArrayUtil.isNotEmpty(methods)) {
 			for (final Method method : methods) {
 				if (StrUtil.equals(methodName, method.getName(), ignoreCase)
-						// 排除桥接方法
-						&& false == method.isBridge()) {
-					return method;
+						//排除协变桥接方法，pr#1965@Github
+						&& (res == null || res.getReturnType().isAssignableFrom(method.getReturnType()))) {
+					res = method;
 				}
 			}
 		}
-		return null;
+		return res;
 	}
 
 	/**

hutool-core/src/test/java/cn/hutool/core/reflect/MethodUtilTest.java

@@ -115,6 +115,7 @@ public class MethodUtilTest {
 		Console.log(timer.getLastTaskTimeMillis());
 	}
 
+	@SuppressWarnings("UnusedReturnValue")
 	public static Method getMethodWithReturnTypeCheck(final Class<?> clazz, final boolean ignoreCase, final String methodName, final Class<?>... paramTypes) throws SecurityException {
 		if (null == clazz || StrUtil.isBlank(methodName)) {
 			return null;
@@ -193,6 +194,26 @@ public class MethodUtilTest {
 		Assert.assertNotNull(publicSubMethod);
 		final Method privateSubMethod = MethodUtil.getMethod(ReflectUtilTest.TestSubClass.class, "privateSubMethod");
 		Assert.assertNotNull(privateSubMethod);
+	}
 
+	@Test
+	public void issue2625Test(){
+		// 内部类继承的情况下父类方法会被定义为桥接方法，因此按照pr#1965@Github判断返回值的继承关系来代替判断桥接。
+		final Method getThis = MethodUtil.getMethod(A.C.class, "getThis");
+		Assert.assertTrue(getThis.isBridge());
+	}
+
+	@SuppressWarnings("InnerClassMayBeStatic")
+	public class A{
+
+		public class C extends B{
+
+		}
+
+		protected class B{
+			public B getThis(){
+				return this;
+			}
+		}
 	}
 }

hutool-core/src/test/java/cn/hutool/core/text/StrUtilTest.java

@@ -695,4 +695,10 @@ public class StrUtilTest {
 		Assert.assertTrue(CharSequenceUtil.isAllBlank("\u2000"));
 		Assert.assertTrue(CharSequenceUtil.isAllBlank("\u2001"));
 	}
+
+	@Test
+	public void issue2628Test(){
+		final String s = StrUtil.indexedFormat("a{0,number,#}", 1234567);
+		Assert.assertEquals("a1234567", s);
+	}
 }