$ unzip -l spring-core-7.0.10.jar | grep 'META-INF/versions/24/.*\.class' | wc -l
9

$ unzip -l spring-core-7.0.10.jar | grep 'versions/24.*ClassFile'
META-INF/versions/24/org/springframework/core/type/classreading/ClassFileAnnotationDelegate$Source.class
META-INF/versions/24/org/springframework/core/type/classreading/ClassFileAnnotationDelegate.class
META-INF/versions/24/org/springframework/core/type/classreading/ClassFileAnnotationMetadata$Builder.class
META-INF/versions/24/org/springframework/core/type/classreading/ClassFileAnnotationMetadata.class
META-INF/versions/24/org/springframework/core/type/classreading/ClassFileMetadataReader.class
META-INF/versions/24/org/springframework/core/type/classreading/ClassFileMetadataReaderFactory.class
META-INF/versions/24/org/springframework/core/type/classreading/ClassFileMethodMetadata$Source.class
META-INF/versions/24/org/springframework/core/type/classreading/ClassFileMethodMetadata.class

$ unzip -l spring-core-7.0.10.jar | grep -c 'org/springframework/asm/.*\.class'     (the repackaged ASM is still there)
37

$ javap -v -cp <jar>!/META-INF/versions/24 ...ClassFileMetadataReader | grep java/lang/classfile   (does it really call the JDK API?)
java/lang/classfile/ClassFile
java/lang/classfile/ClassModel

$ unzip -p spring-core-7.0.10.jar META-INF/MANIFEST.MF | grep -i multi-release
Multi-Release: true