Allow to ignore methods on provided interface

core/src/main/java/feign/Contract.java

@@ -59,7 +59,7 @@ public List<MethodMetadata> parseAndValidateMetadata(Class<?> targetType) {
       for (final Method method : targetType.getMethods()) {
         if (method.getDeclaringClass() == Object.class ||
             (method.getModifiers() & Modifier.STATIC) != 0 ||
-            Util.isDefault(method)) {
+            Util.isDefault(method) || method.isAnnotationPresent(FeignIgnore.class)) {
           continue;
         }
         final MethodMetadata metadata = parseAndValidateMetadata(targetType, method);

core/src/main/java/feign/FeignIgnore.java

@@ -0,0 +1,27 @@
+/*
+ * Copyright 2012-2023 The Feign Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
+ * in compliance with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software distributed under the License
+ * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
+ * or implied. See the License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package feign;
+
+import java.lang.annotation.Retention;
+
+import static java.lang.annotation.ElementType.*;
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+
+/**
+ * Indicates that method will be ignored
+ */
+@Retention(RUNTIME)
+@java.lang.annotation.Target({METHOD})
+public @interface FeignIgnore {
+}

core/src/test/java/feign/FeignTest.java

@@ -1272,6 +1272,9 @@ void queryMapPropertyInheritenceWithBeanMapEncoder(@QueryMap(
     @Headers("Custom: {complex}")
     void supportComplexHttpHeaders(@Param("complex") String complex);
 
+    @FeignIgnore
+    String ignore();
+
     class ClockToMillis implements Param.Expander {
 
       @Override