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Infer Kotlin null-safety from type variables

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This commit removes the constraint from type variables in
PropertyResolver, JdbcOperations and RestOperations
Kotlin extensions in order to get null-safety inferred
from the type declared by the user.

Closes gh-22687
This commit is contained in:
Sebastien Deleuze
2019-03-27 08:50:42 +01:00
parent 68a529b915
commit cbb5a78aa0
6 changed files with 175 additions and 124 deletions
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8
spring-core/src/main/kotlin/org/springframework/core/env/PropertyResolverExtensions.kt vendored
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@@ -1,5 +1,5 @@
/*
* Copyright 2002-2018 the original author or authors.
* Copyright 2002-2019 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.
@@ -39,8 +39,8 @@ operator fun PropertyResolver.get(key: String) : String? = getProperty(key)
* @author Sebastien Deleuze
* @since 5.1
*/
inline fun <reified T: Any?> PropertyResolver.getProperty(key: String) : T? =
getProperty(key, T::class.java)
inline fun <reified T> PropertyResolver.getProperty(key: String) : T =
getProperty(key, T::class.java) as T
/**
* Extension for [PropertyResolver.getRequiredProperty] providing a
@@ -49,5 +49,5 @@ inline fun <reified T: Any?> PropertyResolver.getProperty(key: String) : T? =
* @author Sebastien Deleuze
* @since 5.1
*/
inline fun <reified T: Any> PropertyResolver.getRequiredProperty(key: String) : T =
inline fun <reified T> PropertyResolver.getRequiredProperty(key: String) : T =
getRequiredProperty(key, T::class.java)