Cannot run minimal (GraalVM native images) samples

[Azbesciak]

Hello,
First of all I would like to really appreciate your work. Thank you!
I wanted to try native images, inspired by @sdeleuze presentation at Devoxx.
However, I faced an issue with running already built image (kofu-reactive-minimal) with error:

Exception in thread "main" java.util.NoSuchElementException: No attribute named 'value' present in merged annotation org.springframework.core.annotation.Order
        at org.springframework.core.annotation.AbstractMergedAnnotation.getRequiredAttributeValue(AbstractMergedAnnotation.java:198)
        at org.springframework.core.annotation.AbstractMergedAnnotation.getInt(AbstractMergedAnnotation.java:90)
        at org.springframework.core.annotation.OrderUtils.findOrder(OrderUtils.java:113)
        at org.springframework.core.annotation.OrderUtils.getOrderFromAnnotations(OrderUtils.java:104)
        at org.springframework.core.annotation.AnnotationAwareOrderComparator.findOrderFromAnnotation(AnnotationAwareOrderComparator.java:75)
        at org.springframework.core.annotation.AnnotationAwareOrderComparator.findOrder(AnnotationAwareOrderComparator.java:68)
        at org.springframework.core.OrderComparator.getOrder(OrderComparator.java:124)
        at org.springframework.core.OrderComparator.getOrder(OrderComparator.java:112)
        at org.springframework.core.OrderComparator.doCompare(OrderComparator.java:82)
        at org.springframework.core.OrderComparator.compare(OrderComparator.java:68)
        at java.util.TimSort.countRunAndMakeAscending(TimSort.java:355)
        at java.util.TimSort.sort(TimSort.java:220)
        at java.util.Arrays.sort(Arrays.java:1512)
        at java.util.ArrayList.sort(ArrayList.java:1462)
        at org.springframework.core.annotation.AnnotationAwareOrderComparator.sort(AnnotationAwareOrderComparator.java:111)
        at org.springframework.boot.SpringApplication.getSpringFactoriesInstances(SpringApplication.java:438)
        at org.springframework.boot.SpringApplication.getSpringFactoriesInstances(SpringApplication.java:427)
        at org.springframework.boot.SpringApplication.<init>(SpringApplication.java:273)
        at org.springframework.boot.SpringApplication.<init>(SpringApplication.java:252)
        at org.springframework.fu.kofu.KofuApplication$run$app$1.<init>(KofuApplication.kt:26)
        at org.springframework.fu.kofu.KofuApplication.run(KofuApplication.kt:26)
        at org.springframework.fu.kofu.KofuApplication.run$default(KofuApplication.kt:25)
        at com.sample.ApplicationKt.main(Application.kt:39)
        at com.sample.ApplicationKt.main(Application.kt)

Same applies to jafu-reactive-minimal. Currently I am using GraalVM RC 15 EE on Ubuntu 18.04, but had the same error with GraalVM CE. Also, I did not found any note at README, so I assume it is just enough to run ./build.sh and then start an image.

[sdeleuze]

Good catch, I have created oracle/graal#1170 about that issue.

[Sineaggi]

GraalVM RC 15 CE also has fixed this issue, however this exception now occurs at runtime.

Exception in thread "main" com.oracle.svm.core.jdk.UnsupportedFeatureError: Unsupported method java.lang.Class.getConstantPool() is reachable: The declaring class of this element has been substituted, but this element is not present in the substitution class
	at com.oracle.svm.core.util.VMError.unsupportedFeature(VMError.java:102)
	at java.lang.Class.getConstantPool(DynamicHub.java)
	at java.lang.System$2.getConstantPool(System.java:1227)
	at java.lang.reflect.Method.getDefaultValue(Method.java:609)
	at org.springframework.core.annotation.AttributeMethods.<init>(AttributeMethods.java:73)
	at org.springframework.core.annotation.AttributeMethods.compute(AttributeMethods.java:273)
	at java.util.concurrent.ConcurrentMap.computeIfAbsent(ConcurrentMap.java:324)
	at org.springframework.core.annotation.AttributeMethods.forAnnotationType(AttributeMethods.java:255)
	at org.springframework.core.annotation.AnnotationsScanner.getDeclaredAnnotations(AnnotationsScanner.java:445)
	at org.springframework.core.annotation.AnnotationsScanner.getDeclaredAnnotations(AnnotationsScanner.java:417)
	at org.springframework.core.annotation.AnnotationsScanner.processClassHierarchy(AnnotationsScanner.java:197)
	at org.springframework.core.annotation.AnnotationsScanner.processClass(AnnotationsScanner.java:127)
	at org.springframework.core.annotation.AnnotationsScanner.process(AnnotationsScanner.java:106)
	at org.springframework.core.annotation.AnnotationsScanner.scan(AnnotationsScanner.java:96)
	at org.springframework.core.annotation.AnnotationsScanner.scan(AnnotationsScanner.java:77)
	at org.springframework.core.annotation.TypeMappedAnnotations.scan(TypeMappedAnnotations.java:241)
	at org.springframework.core.annotation.TypeMappedAnnotations.get(TypeMappedAnnotations.java:148)
	at org.springframework.core.annotation.TypeMappedAnnotations.get(TypeMappedAnnotations.java:130)
	at org.springframework.core.annotation.OrderUtils.findOrder(OrderUtils.java:111)
	at org.springframework.core.annotation.OrderUtils.getOrderFromAnnotations(OrderUtils.java:104)
	at org.springframework.core.annotation.AnnotationAwareOrderComparator.findOrderFromAnnotation(AnnotationAwareOrderComparator.java:75)
	at org.springframework.core.annotation.AnnotationAwareOrderComparator.findOrder(AnnotationAwareOrderComparator.java:68)
	at org.springframework.core.OrderComparator.getOrder(OrderComparator.java:124)
	at org.springframework.core.OrderComparator.getOrder(OrderComparator.java:112)
	at org.springframework.core.OrderComparator.doCompare(OrderComparator.java:81)
	at org.springframework.core.OrderComparator.compare(OrderComparator.java:68)
	at java.util.TimSort.binarySort(TimSort.java:296)
	at java.util.TimSort.sort(TimSort.java:221)
	at java.util.Arrays.sort(Arrays.java:1512)
	at java.util.ArrayList.sort(ArrayList.java:1462)
	at org.springframework.core.annotation.AnnotationAwareOrderComparator.sort(AnnotationAwareOrderComparator.java:111)
	at org.springframework.boot.SpringApplication.getSpringFactoriesInstances(SpringApplication.java:438)
	at org.springframework.boot.SpringApplication.getSpringFactoriesInstances(SpringApplication.java:427)
	at org.springframework.boot.SpringApplication.<init>(SpringApplication.java:273)
	at org.springframework.boot.SpringApplication.<init>(SpringApplication.java:252)
	at org.springframework.fu.kofu.KofuApplication$run$app$1.<init>(KofuApplication.kt:26)
	at org.springframework.fu.kofu.KofuApplication.run(KofuApplication.kt:26)
	at org.springframework.fu.kofu.KofuApplication.run$default(KofuApplication.kt:25)
	at com.sample.ApplicationKt.main(Application.kt:124)
	at com.sample.ApplicationKt.main(Application.kt)

This looks to be related to oracle/graal#649

[sdeleuze]

I think we need to wait GraalVM 1.0 RC17 to have all the Spring related fixes.

[sdeleuze]

I am closing this issue in favor of #146 that will leverage the improvements of the related spring-projects/spring-framework#22968 Spring Framework issue for out of the box support.