Refactor TargetSpecificationVerifier

OpenFeign · Oct 10, 2022 · c382ae0 · c382ae0
1 parent b178ea4
commit c382ae0
Showing 1 changed file with 2 additions and 3 deletions.
diff --git a/core/src/main/java/feign/ReflectiveFeign.java b/core/src/main/java/feign/ReflectiveFeign.java
@@ -433,13 +433,12 @@ public static <T> void verify(Target<T> target) {
 
         final Type genRetType = m.getGenericReturnType();
 
-        if (!ParameterizedType.class.isInstance(genRetType)) {
+        if (!(genRetType instanceof ParameterizedType)) {
           throw new IllegalArgumentException("Method return type is not parameterized: "
                   + getFullMethodName(type, genRetType, m));
         }
 
-        if (WildcardType.class
-                .isInstance(ParameterizedType.class.cast(genRetType).getActualTypeArguments()[0])) {
+        if (((ParameterizedType) genRetType).getActualTypeArguments()[0] instanceof WildcardType) {
           throw new IllegalArgumentException(
                   "Wildcards are not supported for return-type parameters: "
                           + getFullMethodName(type, genRetType, m));