Fix config/src/test/kotlin nullability for web

Issue gh-17535

Author: rwinch

config/src/test/kotlin/org/springframework/security/config/annotation/web/OneTimeTokenLoginDslTests.kt

@@ -22,7 +22,6 @@ import io.mockk.mockk
 import io.mockk.verify
 import jakarta.servlet.http.HttpServletRequest
 import jakarta.servlet.http.HttpServletResponse
-import org.assertj.core.api.Assertions.assertThat
 import org.junit.jupiter.api.Test
 import org.junit.jupiter.api.extension.ExtendWith
 import org.springframework.beans.factory.annotation.Autowired
@@ -44,7 +43,6 @@ import org.springframework.security.test.web.servlet.request.SecurityMockMvcRequ
 import org.springframework.security.test.web.servlet.response.SecurityMockMvcResultMatchers
 import org.springframework.security.web.SecurityFilterChain
 import org.springframework.security.web.authentication.SimpleUrlAuthenticationSuccessHandler
-import org.springframework.security.web.authentication.ott.DefaultGenerateOneTimeTokenRequestResolver
 import org.springframework.security.web.authentication.ott.GenerateOneTimeTokenRequestResolver
 import org.springframework.security.web.authentication.ott.OneTimeTokenGenerationSuccessHandler
 import org.springframework.security.web.authentication.ott.RedirectOneTimeTokenGenerationSuccessHandler
@@ -53,7 +51,6 @@ import org.springframework.test.web.servlet.request.MockMvcRequestBuilders
 import org.springframework.test.web.servlet.result.MockMvcResultMatchers
 import java.time.Duration
 import java.time.Instant
-import java.time.ZoneOffset
 
 /**
  * Tests for [OneTimeTokenLoginDsl]
@@ -267,7 +264,7 @@ class OneTimeTokenLoginDslTests {
                 )
         }
 
-        constructor(redirectUrl: String?) {
+        constructor(redirectUrl: String) {
             this.delegate =
                 RedirectOneTimeTokenGenerationSuccessHandler(
                     redirectUrl

config/src/test/kotlin/org/springframework/security/config/web/server/ServerOAuth2ResourceServerDslTests.kt

@@ -175,8 +175,8 @@ class ServerOAuth2ResourceServerDslTests {
 
     open class MockServerAuthenticationFailureHandler: ServerAuthenticationFailureHandler {
         override fun onAuthenticationFailure(
-            webFilterExchange: WebFilterExchange?,
-            exception: AuthenticationException?
+            webFilterExchange: WebFilterExchange,
+            exception: AuthenticationException
         ): Mono<Void> {
             return Mono.empty()
         }

config/src/test/kotlin/org/springframework/security/config/web/server/ServerOneTimeTokenLoginDslTests.kt

@@ -280,11 +280,11 @@ class ServerOneTimeTokenLoginDslTests {
             this.delegate = ServerRedirectOneTimeTokenGenerationSuccessHandler("/login/ott")
         }
 
-        constructor(redirectUrl: String?) {
+        constructor(redirectUrl: String) {
             this.delegate = ServerRedirectOneTimeTokenGenerationSuccessHandler(redirectUrl)
         }
 
-        override fun handle(exchange: ServerWebExchange?, oneTimeToken: OneTimeToken?): Mono<Void> {
+        override fun handle(exchange: ServerWebExchange, oneTimeToken: OneTimeToken): Mono<Void> {
             lastToken = oneTimeToken
             return delegate!!.handle(exchange, oneTimeToken)
         }