diff --git a/spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/security/oauth2/resource/reactive/ReactiveOAuth2ResourceServerJwkConfiguration.java b/spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/security/oauth2/resource/reactive/ReactiveOAuth2ResourceServerJwkConfiguration.java
index 0a6ff66aca..9d77b60661 100644
--- a/spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/security/oauth2/resource/reactive/ReactiveOAuth2ResourceServerJwkConfiguration.java
+++ b/spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/security/oauth2/resource/reactive/ReactiveOAuth2ResourceServerJwkConfiguration.java
@@ -32,6 +32,7 @@ import org.springframework.security.oauth2.jwt.ReactiveJwtDecoders;
  *
  * @author Madhura Bhave
  * @author Artsiom Yudovin
+ * @author HaiTao Zhang
  */
 @Configuration
 class ReactiveOAuth2ResourceServerJwkConfiguration {
@@ -48,9 +49,9 @@ class ReactiveOAuth2ResourceServerJwkConfiguration {
 	public ReactiveJwtDecoder jwtDecoder() {
 		NimbusReactiveJwtDecoder nimbusReactiveJwtDecoder = new NimbusReactiveJwtDecoder(
 				this.properties.getJwt().getJwkSetUri());
-		if (this.properties.getJwt().getIssuerUri() != null) {
-			nimbusReactiveJwtDecoder
-					.setJwtValidator(JwtValidators.createDefaultWithIssuer(this.properties.getJwt().getIssuerUri()));
+		String issuerUri = this.properties.getJwt().getIssuerUri();
+		if (issuerUri != null) {
+			nimbusReactiveJwtDecoder.setJwtValidator(JwtValidators.createDefaultWithIssuer(issuerUri));
 		}
 		return nimbusReactiveJwtDecoder;
 	}
diff --git a/spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/security/oauth2/resource/servlet/OAuth2ResourceServerJwtConfiguration.java b/spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/security/oauth2/resource/servlet/OAuth2ResourceServerJwtConfiguration.java
index 3de824543d..4dcd5ab34d 100644
--- a/spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/security/oauth2/resource/servlet/OAuth2ResourceServerJwtConfiguration.java
+++ b/spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/security/oauth2/resource/servlet/OAuth2ResourceServerJwtConfiguration.java
@@ -33,6 +33,7 @@ import org.springframework.security.oauth2.jwt.NimbusJwtDecoderJwkSupport;
  *
  * @author Madhura Bhave
  * @author Artsiom Yudovin
+ * @author HaiTao Zhang
  */
 @Configuration
 class OAuth2ResourceServerJwtConfiguration {
@@ -49,9 +50,9 @@ class OAuth2ResourceServerJwtConfiguration {
 	public JwtDecoder jwtDecoderByJwkKeySetUri() {
 		NimbusJwtDecoderJwkSupport nimbusJwtDecoder = new NimbusJwtDecoderJwkSupport(
 				this.properties.getJwt().getJwkSetUri());
-		if (this.properties.getJwt().getIssuerUri() != null) {
-			nimbusJwtDecoder
-					.setJwtValidator(JwtValidators.createDefaultWithIssuer(this.properties.getJwt().getIssuerUri()));
+		String issuerUri = this.properties.getJwt().getIssuerUri();
+		if (issuerUri != null) {
+			nimbusJwtDecoder.setJwtValidator(JwtValidators.createDefaultWithIssuer(issuerUri));
 		}
 		return nimbusJwtDecoder;
 	}
diff --git a/spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/security/oauth2/resource/reactive/ReactiveOAuth2ResourceServerAutoConfigurationTests.java b/spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/security/oauth2/resource/reactive/ReactiveOAuth2ResourceServerAutoConfigurationTests.java
index 75189beb04..fdc97f9c47 100644
--- a/spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/security/oauth2/resource/reactive/ReactiveOAuth2ResourceServerAutoConfigurationTests.java
+++ b/spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/security/oauth2/resource/reactive/ReactiveOAuth2ResourceServerAutoConfigurationTests.java
@@ -65,6 +65,7 @@ import static org.mockito.Mockito.mock;
  *
  * @author Madhura Bhave
  * @author Artsiom Yudovin
+ * @author HaiTao Zhang
  */
 public class ReactiveOAuth2ResourceServerAutoConfigurationTests {
 
diff --git a/spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/security/oauth2/resource/servlet/OAuth2ResourceServerAutoConfigurationTests.java b/spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/security/oauth2/resource/servlet/OAuth2ResourceServerAutoConfigurationTests.java
index 7cfd434347..bf60017cf0 100644
--- a/spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/security/oauth2/resource/servlet/OAuth2ResourceServerAutoConfigurationTests.java
+++ b/spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/security/oauth2/resource/servlet/OAuth2ResourceServerAutoConfigurationTests.java
@@ -61,6 +61,7 @@ import static org.mockito.Mockito.mock;
  *
  * @author Madhura Bhave
  * @author Artsiom Yudovin
+ * @author HaiTao Zhang
  */
 public class OAuth2ResourceServerAutoConfigurationTests {