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Juergen Hoeller
2020-01-09 17:03:17 +01:00
parent e8ef93c508
commit 4936a637fe
4 changed files with 14 additions and 12 deletions
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16
spring-core/src/main/java/org/springframework/core/MethodParameter.java
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@@ -1,5 +1,5 @@
/*
* Copyright 2002-2019 the original author or authors.
* Copyright 2002-2020 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -867,8 +867,8 @@ public class MethodParameter {
/**
* Check whether the specified {@link MethodParameter} represents a nullable Kotlin type,
* an optional parameter (with a default value in the Kotlin declaration) or a {@code Continuation} parameter
* used in suspending functions.
* an optional parameter (with a default value in the Kotlin declaration) or a
* {@code Continuation} parameter used in suspending functions.
*/
public static boolean isOptional(MethodParameter param) {
Method method = param.getMethod();
@@ -880,16 +880,18 @@ public class MethodParameter {
KFunction<?> function;
Predicate<KParameter> predicate;
if (method != null) {
if (param.parameterType.getName().equals("kotlin.coroutines.Continuation")) {
if (param.getParameterType().getName().equals("kotlin.coroutines.Continuation")) {
return true;
}
function = ReflectJvmMapping.getKotlinFunction(method);
predicate = p -> KParameter.Kind.VALUE.equals(p.getKind());
}
else {
function = ReflectJvmMapping.getKotlinFunction(param.getConstructor());
predicate = p -> KParameter.Kind.VALUE.equals(p.getKind()) ||
KParameter.Kind.INSTANCE.equals(p.getKind());
Constructor<?> ctor = param.getConstructor();
Assert.state(ctor != null, "Neither method nor constructor found");
function = ReflectJvmMapping.getKotlinFunction(ctor);
predicate = p -> (KParameter.Kind.VALUE.equals(p.getKind()) ||
KParameter.Kind.INSTANCE.equals(p.getKind()));
}
if (function != null) {
int i = 0;