Spring Boot 3.4.0: GraalVM build fails

[smoell]

Tried to bump our project from Spring Boot 3.3.x to Spring Boot 3.4.0, activated virtual threads, and ran into the following issue. We're using multi-stage container build with ghcr.io/graalvm/graalvm-community:21 as our builder image.

#6 17.06 [INFO] --- spring-boot:3.4.0:process-aot (process-aot) @ store-spring ---
#6 17.06 Downloading from central: https://repo.maven.apache.org/maven2/org/springframework/boot/spring-boot-buildpack-platform/3.4.0/spring-boot-buildpack-platform-3.4.0.pom
Downloaded from central: https://repo.maven.apache.org/maven2/org/springframework/boot/spring-boot-buildpack-platform/3.4.0/spring-boot-buildpack-platform-3.4.0.pom (3.2 kB at 357 kB/s)
#6 17.08 Downloading from central: https://repo.maven.apache.org/maven2/net/java/dev/jna/jna-platform/5.13.0/jna-platform-5.13.0.pom
Downloaded from central: https://repo.maven.apache.org/maven2/net/java/dev/jna/jna-platform/5.13.0/jna-platform-5.13.0.pom (2.3 kB at 563 kB/s)
#6 17.09 Downloading from central: https://repo.maven.apache.org/maven2/org/apache/commons/commons-compress/1.25.0/commons-compress-1.25.0.pom
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#6 17.10 Downloading from central: https://repo.maven.apache.org/maven2/org/apache/commons/commons-parent/64/commons-parent-64.pom
Downloaded from central: https://repo.maven.apache.org/maven2/org/apache/commons/commons-parent/64/commons-parent-64.pom (78 kB at 16 MB/s)
#6 17.11 Downloading from central: https://repo.maven.apache.org/maven2/org/apache/httpcomponents/client5/httpclient5/5.4.1/httpclient5-5.4.1.pom
Downloaded from central: https://repo.maven.apache.org/maven2/org/apache/httpcomponents/client5/httpclient5/5.4.1/httpclient5-5.4.1.pom (6.1 kB at 1.2 MB/s)
#6 17.12 Downloading from central: https://repo.maven.apache.org/maven2/org/apache/httpcomponents/client5/httpclient5-parent/5.4.1/httpclient5-parent-5.4.1.pom
Downloaded from central: https://repo.maven.apache.org/maven2/org/apache/httpcomponents/client5/httpclient5-parent/5.4.1/httpclient5-parent-5.4.1.pom (16 kB at 2.3 MB/s)
#6 17.13 Downloading from central: https://repo.maven.apache.org/maven2/org/apache/httpcomponents/httpcomponents-parent/13/httpcomponents-parent-13.pom
Downloaded from central: https://repo.maven.apache.org/maven2/org/apache/httpcomponents/httpcomponents-parent/13/httpcomponents-parent-13.pom (30 kB at 6.0 MB/s)
#6 17.14 Downloading from central: https://repo.maven.apache.org/maven2/org/apache/apache/27/apache-27.pom
Downloaded from central: https://repo.maven.apache.org/maven2/org/apache/apache/27/apache-27.pom (20 kB at 4.1 MB/s)
#6 17.15 Downloading from central: https://repo.maven.apache.org/maven2/org/apache/httpcomponents/core5/httpcore5/5.3.1/httpcore5-5.3.1.pom
Downloaded from central: https://repo.maven.apache.org/maven2/org/apache/httpcomponents/core5/httpcore5/5.3.1/httpcore5-5.3.1.pom (3.9 kB at 564 kB/s)
#6 17.16 Downloading from central: https://repo.maven.apache.org/maven2/org/apache/httpcomponents/core5/httpcore5-parent/5.3.1/httpcore5-parent-5.3.1.pom
Downloaded from central: https://repo.maven.apache.org/maven2/org/apache/httpcomponents/core5/httpcore5-parent/5.3.1/httpcore5-parent-5.3.1.pom (14 kB at 2.8 MB/s)
#6 17.18 Downloading from central: https://repo.maven.apache.org/maven2/org/apache/httpcomponents/core5/httpcore5-h2/5.3.1/httpcore5-h2-5.3.1.pom
Downloaded from central: https://repo.maven.apache.org/maven2/org/apache/httpcomponents/core5/httpcore5-h2/5.3.1/httpcore5-h2-5.3.1.pom (3.6 kB at 723 kB/s)
#6 17.19 Downloading from central: https://repo.maven.apache.org/maven2/org/tomlj/tomlj/1.0.0/tomlj-1.0.0.pom
Downloaded from central: https://repo.maven.apache.org/maven2/org/tomlj/tomlj/1.0.0/tomlj-1.0.0.pom (2.8 kB at 564 kB/s)
#6 17.20 Downloading from central: https://repo.maven.apache.org/maven2/org/antlr/antlr4-runtime/4.7.2/antlr4-runtime-4.7.2.pom
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#6 17.21 Downloading from central: https://repo.maven.apache.org/maven2/org/antlr/antlr4-master/4.7.2/antlr4-master-4.7.2.pom
Downloaded from central: https://repo.maven.apache.org/maven2/org/antlr/antlr4-master/4.7.2/antlr4-master-4.7.2.pom (4.4 kB at 734 kB/s)
#6 17.22 Downloading from central: https://repo.maven.apache.org/maven2/com/google/code/findbugs/jsr305/3.0.2/jsr305-3.0.2.pom
Downloaded from central: https://repo.maven.apache.org/maven2/com/google/code/findbugs/jsr305/3.0.2/jsr305-3.0.2.pom (4.3 kB at 357 kB/s)
#6 17.24 Downloading from central: https://repo.maven.apache.org/maven2/org/springframework/boot/spring-boot-loader-tools/3.4.0/spring-boot-loader-tools-3.4.0.pom
Downloaded from central: https://repo.maven.apache.org/maven2/org/springframework/boot/spring-boot-loader-tools/3.4.0/spring-boot-loader-tools-3.4.0.pom (2.2 kB at 448 kB/s)
#6 17.25 Downloading from central: https://repo.maven.apache.org/maven2/org/apache/maven/shared/maven-common-artifact-filters/3.3.2/maven-common-artifact-filters-3.3.2.pom
Downloaded from central: https://repo.maven.apache.org/maven2/org/apache/maven/shared/maven-common-artifact-filters/3.3.2/maven-common-artifact-filters-3.3.2.pom (5.3 kB at 753 kB/s)
#6 17.26 Downloading from central: https://repo.maven.apache.org/maven2/org/apache/maven/shared/maven-shared-components/37/maven-shared-components-37.pom
Downloaded from central: https://repo.maven.apache.org/maven2/org/apache/maven/shared/maven-shared-components/37/maven-shared-components-37.pom (4.9 kB at 699 kB/s)
#6 17.27 Downloading from central: https://repo.maven.apache.org/maven2/org/apache/maven/maven-parent/37/maven-parent-37.pom
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#6 17.29 Downloading from central: https://repo.maven.apache.org/maven2/io/micrometer/micrometer-observation/1.14.0/micrometer-observation-1.14.0.pom
Downloaded from central: https://repo.maven.apache.org/maven2/io/micrometer/micrometer-observation/1.14.0/micrometer-observation-1.14.0.pom (3.8 kB at 640 kB/s)
#6 17.31 Downloading from central: https://repo.maven.apache.org/maven2/io/micrometer/micrometer-commons/1.14.0/micrometer-commons-1.14.0.pom
Downloaded from central: https://repo.maven.apache.org/maven2/io/micrometer/micrometer-commons/1.14.0/micrometer-commons-1.14.0.pom (3.4 kB at 379 kB/s)
#6 17.32 Downloading from central: https://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-shade-plugin/3.5.0/maven-shade-plugin-3.5.0.pom
Downloaded from central: https://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-shade-plugin/3.5.0/maven-shade-plugin-3.5.0.pom (12 kB at 2.1 MB/s)
#6 17.33 Downloading from central: https://repo.maven.apache.org/maven2/org/slf4j/slf4j-api/1.7.32/slf4j-api-1.7.32.pom
Downloaded from central: https://repo.maven.apache.org/maven2/org/slf4j/slf4j-api/1.7.32/slf4j-api-1.7.32.pom (3.8 kB at 349 kB/s)
#6 17.35 Downloading from central: https://repo.maven.apache.org/maven2/org/slf4j/slf4j-parent/1.7.32/slf4j-parent-1.7.32.pom
Downloaded from central: https://repo.maven.apache.org/maven2/org/slf4j/slf4j-parent/1.7.32/slf4j-parent-1.7.32.pom (14 kB at 2.0 MB/s)
#6 17.36 Downloading from central: https://repo.maven.apache.org/maven2/org/ow2/asm/asm/9.5/asm-9.5.pom
Downloaded from central: https://repo.maven.apache.org/maven2/org/ow2/asm/asm/9.5/asm-9.5.pom (2.4 kB at 198 kB/s)
#6 17.39 Downloading from central: https://repo.maven.apache.org/maven2/org/ow2/asm/asm-commons/9.5/asm-commons-9.5.pom
Downloaded from central: https://repo.maven.apache.org/maven2/org/ow2/asm/asm-commons/9.5/asm-commons-9.5.pom (2.8 kB at 398 kB/s)
#6 17.41 Downloading from central: https://repo.maven.apache.org/maven2/org/ow2/asm/asm-tree/9.5/asm-tree-9.5.pom
Downloaded from central: https://repo.maven.apache.org/maven2/org/ow2/asm/asm-tree/9.5/asm-tree-9.5.pom (2.6 kB at 518 kB/s)
#6 17.42 Downloading from central: https://repo.maven.apache.org/maven2/org/jdom/jdom2/2.0.6.1/jdom2-2.0.6.1.pom
Downloaded from central: https://repo.maven.apache.org/maven2/org/jdom/jdom2/2.0.6.1/jdom2-2.0.6.1.pom (4.6 kB at 920 kB/s)
#6 17.43 Downloading from central: https://repo.maven.apache.org/maven2/org/apache/maven/shared/maven-dependency-tree/3.2.1/maven-dependency-tree-3.2.1.pom
Downloaded from central: https://repo.maven.apache.org/maven2/org/apache/maven/shared/maven-dependency-tree/3.2.1/maven-dependency-tree-3.2.1.pom (6.2 kB at 891 kB/s)
#6 17.44 Downloading from central: https://repo.maven.apache.org/maven2/org/eclipse/aether/aether-util/1.0.0.v20140518/aether-util-1.0.0.v20140518.pom
Downloaded from central: https://repo.maven.apache.org/maven2/org/eclipse/aether/aether-util/1.0.0.v20140518/aether-util-1.0.0.v20140518.pom (2.2 kB at 548 kB/s)
#6 17.45 Downloading from central: https://repo.maven.apache.org/maven2/org/eclipse/aether/aether/1.0.0.v20140518/aether-1.0.0.v20140518.pom
Downloaded from central: https://repo.maven.apache.org/maven2/org/eclipse/aether/aether/1.0.0.v20140518/aether-1.0.0.v20140518.pom (30 kB at 7.5 MB/s)
#6 17.46 Downloading from central: https://repo.maven.apache.org/maven2/org/eclipse/aether/aether-api/1.0.0.v20140518/aether-api-1.0.0.v20140518.pom
Downloaded from central: https://repo.maven.apache.org/maven2/org/eclipse/aether/aether-api/1.0.0.v20140518/aether-api-1.0.0.v20140518.pom (1.9 kB at 474 kB/s)
#6 17.47 Downloading from central: https://repo.maven.apache.org/maven2/commons-io/commons-io/2.13.0/commons-io-2.13.0.pom
Downloaded from central: https://repo.maven.apache.org/maven2/commons-io/commons-io/2.13.0/commons-io-2.13.0.pom (20 kB at 4.1 MB/s)
#6 17.48 Downloading from central: https://repo.maven.apache.org/maven2/org/apache/commons/commons-parent/58/commons-parent-58.pom
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#6 17.50 Downloading from central: https://repo.maven.apache.org/maven2/org/vafer/jdependency/2.8.0/jdependency-2.8.0.pom
Downloaded from central: https://repo.maven.apache.org/maven2/org/vafer/jdependency/2.8.0/jdependency-2.8.0.pom (14 kB at 1.5 MB/s)
#6 17.52 Downloading from central: https://repo.maven.apache.org/maven2/org/apache/commons/commons-collections4/4.4/commons-collections4-4.4.pom
Downloaded from central: https://repo.maven.apache.org/maven2/org/apache/commons/commons-collections4/4.4/commons-collections4-4.4.pom (24 kB at 1.5 MB/s)
#6 17.54 Downloading from central: https://repo.maven.apache.org/maven2/org/apache/commons/commons-parent/48/commons-parent-48.pom
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#6 17.57 Downloading from central: https://repo.maven.apache.org/maven2/org/springframework/boot/spring-boot-buildpack-platform/3.4.0/spring-boot-buildpack-platform-3.4.0.jar
Downloaded from central: https://repo.maven.apache.org/maven2/org/springframework/boot/spring-boot-buildpack-platform/3.4.0/spring-boot-buildpack-platform-3.4.0.jar (297 kB at 15 MB/s)
#6 17.60 Downloading from central: https://repo.maven.apache.org/maven2/net/java/dev/jna/jna-platform/5.13.0/jna-platform-5.13.0.jar
#6 17.60 Downloading from central: https://repo.maven.apache.org/maven2/org/apache/commons/commons-compress/1.25.0/commons-compress-1.25.0.jar
#6 17.60 Downloading from central: https://repo.maven.apache.org/maven2/org/apache/httpcomponents/client5/httpclient5/5.4.1/httpclient5-5.4.1.jar
#6 17.60 Downloading from central: https://repo.maven.apache.org/maven2/org/apache/httpcomponents/core5/httpcore5/5.3.1/httpcore5-5.3.1.jar
#6 17.60 Downloading from central: https://repo.maven.apache.org/maven2/org/apache/httpcomponents/core5/httpcore5-h2/5.3.1/httpcore5-h2-5.3.1.jar
Downloaded from central: https://repo.maven.apache.org/maven2/org/apache/httpcomponents/core5/httpcore5-h2/5.3.1/httpcore5-h2-5.3.1.jar (241 kB at 4.9 MB/s)
Downloading from central: https://repo.maven.apache.org/maven2/org/tomlj/tomlj/1.0.0/tomlj-1.0.0.jar
Downloaded from central: https://repo.maven.apache.org/maven2/org/apache/httpcomponents/client5/httpclient5/5.4.1/httpclient5-5.4.1.jar (908 kB at 13 MB/s)
#6 17.67 Downloading from central: https://repo.maven.apache.org/maven2/org/antlr/antlr4-runtime/4.7.2/antlr4-runtime-4.7.2.jar
Downloaded from central: https://repo.maven.apache.org/maven2/org/tomlj/tomlj/1.0.0/tomlj-1.0.0.jar (157 kB at 2.3 MB/s)
Downloading from central: https://repo.maven.apache.org/maven2/com/google/code/findbugs/jsr305/3.0.2/jsr305-3.0.2.jar
Downloaded from central: https://repo.maven.apache.org/maven2/com/google/code/findbugs/jsr305/3.0.2/jsr305-3.0.2.jar (20 kB at 259 kB/s)
#6 17.68 Downloading from central: https://repo.maven.apache.org/maven2/org/springframework/boot/spring-boot-loader-tools/3.4.0/spring-boot-loader-tools-3.4.0.jar
Downloaded from central: https://repo.maven.apache.org/maven2/org/antlr/antlr4-runtime/4.7.2/antlr4-runtime-4.7.2.jar (338 kB at 3.2 MB/s)
#6 17.70 Downloading from central: https://repo.maven.apache.org/maven2/org/apache/maven/shared/maven-common-artifact-filters/3.3.2/maven-common-artifact-filters-3.3.2.jar
Downloaded from central: https://repo.maven.apache.org/maven2/org/apache/httpcomponents/core5/httpcore5/5.3.1/httpcore5-5.3.1.jar (906 kB at 8.4 MB/s)
#6 17.71 Downloading from central: https://repo.maven.apache.org/maven2/io/micrometer/micrometer-observation/1.14.0/micrometer-observation-1.14.0.jar
Downloaded from central: https://repo.maven.apache.org/maven2/org/apache/maven/shared/maven-common-artifact-filters/3.3.2/maven-common-artifact-filters-3.3.2.jar (58 kB at 512 kB/s)
#6 17.71 Downloading from central: https://repo.maven.apache.org/maven2/io/micrometer/micrometer-commons/1.14.0/micrometer-commons-1.14.0.jar
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Downloading from central: https://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-shade-plugin/3.5.0/maven-shade-plugin-3.5.0.jar
Downloaded from central: https://repo.maven.apache.org/maven2/org/springframework/boot/spring-boot-loader-tools/3.4.0/spring-boot-loader-tools-3.4.0.jar (464 kB at 3.8 MB/s)
Downloading from central: https://repo.maven.apache.org/maven2/org/ow2/asm/asm/9.5/asm-9.5.jar
Downloaded from central: https://repo.maven.apache.org/maven2/io/micrometer/micrometer-commons/1.14.0/micrometer-commons-1.14.0.jar (48 kB at 380 kB/s)
#6 17.73 Downloading from central: https://repo.maven.apache.org/maven2/org/ow2/asm/asm-commons/9.5/asm-commons-9.5.jar
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#6 17.75 Downloading from central: https://repo.maven.apache.org/maven2/org/ow2/asm/asm-tree/9.5/asm-tree-9.5.jar
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Downloading from central: https://repo.maven.apache.org/maven2/org/jdom/jdom2/2.0.6.1/jdom2-2.0.6.1.jar
Downloaded from central: https://repo.maven.apache.org/maven2/org/ow2/asm/asm-commons/9.5/asm-commons-9.5.jar (72 kB at 485 kB/s)
#6 17.75 Downloading from central: https://repo.maven.apache.org/maven2/org/apache/maven/shared/maven-dependency-tree/3.2.1/maven-dependency-tree-3.2.1.jar
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Downloading from central: https://repo.maven.apache.org/maven2/org/eclipse/aether/aether-util/1.0.0.v20140518/aether-util-1.0.0.v20140518.jar
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#6 17.75 Downloading from central: https://repo.maven.apache.org/maven2/org/eclipse/aether/aether-api/1.0.0.v20140518/aether-api-1.0.0.v20140518.jar
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#6 17.76 Downloading from central: https://repo.maven.apache.org/maven2/commons-io/commons-io/2.13.0/commons-io-2.13.0.jar
Downloaded from central: https://repo.maven.apache.org/maven2/org/eclipse/aether/aether-util/1.0.0.v20140518/aether-util-1.0.0.v20140518.jar (146 kB at 878 kB/s)
Downloading from central: https://repo.maven.apache.org/maven2/org/vafer/jdependency/2.8.0/jdependency-2.8.0.jar
Downloaded from central: https://repo.maven.apache.org/maven2/org/jdom/jdom2/2.0.6.1/jdom2-2.0.6.1.jar (328 kB at 2.0 MB/s)
#6 17.77 Downloading from central: https://repo.maven.apache.org/maven2/org/apache/commons/commons-collections4/4.4/commons-collections4-4.4.jar
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Downloaded from central: https://repo.maven.apache.org/maven2/commons-io/commons-io/2.13.0/commons-io-2.13.0.jar (484 kB at 2.8 MB/s)
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#6 18.75 14:21:12.559 [main] INFO org.springframework.boot.devtools.restart.RestartApplicationListener -- Restart disabled due to context in which it is running
#6 19.28 
#6 19.28   .   ____          _            __ _ _
#6 19.28  /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
#6 19.28 ( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
#6 19.28  \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
#6 19.28   '  |____| .__|_| |_|_| |_\__, | / / / /
#6 19.28  =========|_|==============|___/=/_/_/_/
#6 19.28 
#6 19.29  :: Spring Boot ::                (v3.4.0)
#6 19.29 
#6 19.43 2024-12-16T14:21:13.240Z  INFO 106 --- [           main] com.unicorn.store.StoreApplication       : Starting StoreApplication using Java 21.0.2 with PID 106 (/app/target/classes started by root in /app)
#6 19.44 2024-12-16T14:21:13.243Z  INFO 106 --- [           main] com.unicorn.store.StoreApplication       : No active profile set, falling back to 1 default profile: "default"
#6 21.16 2024-12-16T14:21:14.964Z  INFO 106 --- [           main] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data JPA repositories in DEFAULT mode.
#6 21.23 2024-12-16T14:21:15.039Z  INFO 106 --- [           main] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 53 ms. Found 1 JPA repository interface.
#6 24.30 Exception in thread "main" java.lang.NoClassDefFoundError: reactor/core/publisher/Mono
#6 24.30        at java.base/java.lang.Class.getDeclaredMethods0(Native Method)
#6 24.30        at java.base/java.lang.Class.privateGetDeclaredMethods(Class.java:3578)
#6 24.30        at java.base/java.lang.Class.getDeclaredMethods(Class.java:2676)
#6 24.30        at org.hibernate.validator.internal.util.privilegedactions.GetDeclaredMethods.run(GetDeclaredMethods.java:30)
#6 24.30        at org.hibernate.validator.internal.util.privilegedactions.GetDeclaredMethods.run(GetDeclaredMethods.java:17)
#6 24.30        at org.hibernate.validator.internal.metadata.provider.AnnotationMetaDataProvider.run(AnnotationMetaDataProvider.java:602)
#6 24.30        at org.hibernate.validator.internal.metadata.provider.AnnotationMetaDataProvider.getMethodMetaData(AnnotationMetaDataProvider.java:277)
#6 24.30        at org.hibernate.validator.internal.metadata.provider.AnnotationMetaDataProvider.retrieveBeanConfiguration(AnnotationMetaDataProvider.java:131)
#6 24.30        at org.hibernate.validator.internal.metadata.provider.AnnotationMetaDataProvider.getBeanConfiguration(AnnotationMetaDataProvider.java:121)
#6 24.30        at org.hibernate.validator.internal.metadata.BeanMetaDataManagerImpl.getBeanConfigurationForHierarchy(BeanMetaDataManagerImpl.java:234)
#6 24.30        at org.hibernate.validator.internal.metadata.BeanMetaDataManagerImpl.createBeanMetaData(BeanMetaDataManagerImpl.java:201)
#6 24.31        at org.hibernate.validator.internal.metadata.BeanMetaDataManagerImpl.getBeanMetaData(BeanMetaDataManagerImpl.java:165)
#6 24.31        at org.hibernate.validator.internal.engine.ValidatorImpl.getConstraintsForClass(ValidatorImpl.java:316)
#6 24.31        at org.springframework.validation.beanvalidation.BeanValidationBeanRegistrationAotProcessor$BeanValidationDelegate.processAheadOfTime(BeanValidationBeanRegistrationAotProcessor.java:125)
#6 24.31        at org.springframework.validation.beanvalidation.BeanValidationBeanRegistrationAotProcessor$BeanValidationDelegate.lambda$processAheadOfTime$0(BeanValidationBeanRegistrationAotProcessor.java:170)
#6 24.31        at org.springframework.util.ReflectionUtils.doWithFields(ReflectionUtils.java:728)
#6 24.31        at org.springframework.util.ReflectionUtils.doWithFields(ReflectionUtils.java:707)
#6 24.31        at org.springframework.validation.beanvalidation.BeanValidationBeanRegistrationAotProcessor$BeanValidationDelegate.processAheadOfTime(BeanValidationBeanRegistrationAotProcessor.java:150)
#6 24.31        at org.springframework.validation.beanvalidation.BeanValidationBeanRegistrationAotProcessor$BeanValidationDelegate.processAheadOfTime(BeanValidationBeanRegistrationAotProcessor.java:110)
#6 24.31        at org.springframework.validation.beanvalidation.BeanValidationBeanRegistrationAotProcessor.processAheadOfTime(BeanValidationBeanRegistrationAotProcessor.java:75)
#6 24.31        at org.springframework.beans.factory.aot.BeanDefinitionMethodGeneratorFactory.getAotContributions(BeanDefinitionMethodGeneratorFactory.java:155)
#6 24.31        at org.springframework.beans.factory.aot.BeanDefinitionMethodGeneratorFactory.getBeanDefinitionMethodGenerator(BeanDefinitionMethodGeneratorFactory.java:99)
#6 24.31        at org.springframework.beans.factory.aot.BeanDefinitionMethodGeneratorFactory.getBeanDefinitionMethodGenerator(BeanDefinitionMethodGeneratorFactory.java:115)
#6 24.31        at org.springframework.beans.factory.aot.BeanRegistrationsAotProcessor.processAheadOfTime(BeanRegistrationsAotProcessor.java:49)
#6 24.31        at org.springframework.beans.factory.aot.BeanRegistrationsAotProcessor.processAheadOfTime(BeanRegistrationsAotProcessor.java:37)
#6 24.31        at org.springframework.context.aot.BeanFactoryInitializationAotContributions.processAheadOfTime(BeanFactoryInitializationAotContributions.java:82)
#6 24.31        at org.springframework.context.aot.BeanFactoryInitializationAotContributions.getContributions(BeanFactoryInitializationAotContributions.java:69)
#6 24.31        at org.springframework.context.aot.BeanFactoryInitializationAotContributions.<init>(BeanFactoryInitializationAotContributions.java:52)
#6 24.31        at org.springframework.context.aot.BeanFactoryInitializationAotContributions.<init>(BeanFactoryInitializationAotContributions.java:47)
#6 24.31        at org.springframework.context.aot.ApplicationContextAotGenerator.lambda$processAheadOfTime$0(ApplicationContextAotGenerator.java:58)
#6 24.31        at org.springframework.context.aot.ApplicationContextAotGenerator.withCglibClassHandler(ApplicationContextAotGenerator.java:67)
#6 24.31        at org.springframework.context.aot.ApplicationContextAotGenerator.processAheadOfTime(ApplicationContextAotGenerator.java:53)
#6 24.31        at org.springframework.context.aot.ContextAotProcessor.performAotProcessing(ContextAotProcessor.java:106)
#6 24.31        at org.springframework.context.aot.ContextAotProcessor.doProcess(ContextAotProcessor.java:84)
#6 24.31        at org.springframework.context.aot.ContextAotProcessor.doProcess(ContextAotProcessor.java:49)
#6 24.31        at org.springframework.context.aot.AbstractAotProcessor.process(AbstractAotProcessor.java:82)
#6 24.31        at org.springframework.boot.SpringApplicationAotProcessor.main(SpringApplicationAotProcessor.java:80)
#6 24.31 Caused by: java.lang.ClassNotFoundException: reactor.core.publisher.Mono
#6 24.31        at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:641)
#6 24.32        at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188)
#6 24.32        at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:526)
#6 24.32        ... 37 more

[wilkinsona]

Duplicates #43260 and spring-projects/spring-framework#33940.