Native image blows up when it accesses Method.getDefaultValue()

[dsyer]

Annotation classes have Methods with default values. It is useful to access the default value reflectively, but it blows up in a native image, even if you declare the annotation type in reflect-confg.json.

Here's an example error:

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 com.sample.App.main(App.java:23)

Sample project: sdeleuze/graalvm-native-issues#9

[dsyer]

Similar to #1170 (arises in a similar use case) but the error is different, so possibly not the same thing.

[cstancu]

This is fixed by ef950cc.