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ParameterNameDiscoverer may return individual null entries in an array

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Issue: SPR-17565
This commit is contained in:
Juergen Hoeller
2018-12-12 21:56:17 +01:00
parent ef72baad3a
commit c48672c4c7
2 changed files with 13 additions and 9 deletions
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18
spring-core/src/main/java/org/springframework/core/ParameterNameDiscoverer.java
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@@ -1,5 +1,5 @@
/*
* Copyright 2002-2012 the original author or authors.
* Copyright 2002-2018 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.
@@ -36,9 +36,11 @@ import org.springframework.lang.Nullable;
public interface ParameterNameDiscoverer {
/**
* Return parameter names for this method,
* or {@code null} if they cannot be determined.
* @param method method to find parameter names for
* Return parameter names for a method, or {@code null} if they cannot be determined.
* <p>Individual entries in the array may be {@code null} if parameter names are only
* available for some parameters of the given method but not for others. However,
* it is recommended to use stub parameter names instead wherever feasible.
* @param method the method to find parameter names for
* @return an array of parameter names if the names can be resolved,
* or {@code null} if they cannot
*/
@@ -46,9 +48,11 @@ public interface ParameterNameDiscoverer {
String[] getParameterNames(Method method);
/**
* Return parameter names for this constructor,
* or {@code null} if they cannot be determined.
* @param ctor constructor to find parameter names for
* Return parameter names for a constructor, or {@code null} if they cannot be determined.
* <p>Individual entries in the array may be {@code null} if parameter names are only
* available for some parameters of the given constructor but not for others. However,
* it is recommended to use stub parameter names instead wherever feasible.
* @param ctor the constructor to find parameter names for
* @return an array of parameter names if the names can be resolved,
* or {@code null} if they cannot
*/