https://github.com/oracle/graal: GraalVM is an ecosystem for compiling and running applications written in multiple languages. GraalVM removes the isolation between programming languages and enables interoperability in a shared runtime. 
public interface org.graalvm.nativeimage.hosted.Feature$QueryReachabilityAccess extends org.graalvm.nativeimage.hosted.Feature$FeatureAccess
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: org.graalvm.nativeimage.hosted.Feature$QueryReachabilityAccess
  super_class: java.lang.Object
{
  public abstract boolean isReachable(java.lang.Class<?>);
    descriptor: (Ljava/lang/Class;)Z
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Signature: (Ljava/lang/Class<*>;)Z
    MethodParameters:
       Name  Flags
      clazz  

  public abstract boolean isReachable(java.lang.reflect.Field);
    descriptor: (Ljava/lang/reflect/Field;)Z
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    MethodParameters:
       Name  Flags
      field  

  public abstract boolean isReachable(java.lang.reflect.Executable);
    descriptor: (Ljava/lang/reflect/Executable;)Z
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    MethodParameters:
        Name  Flags
      method  

  public abstract java.util.Set<java.lang.Class<?>> reachableSubtypes(java.lang.Class<?>);
    descriptor: (Ljava/lang/Class;)Ljava/util/Set;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Signature: (Ljava/lang/Class<*>;)Ljava/util/Set<Ljava/lang/Class<*>;>;
    MethodParameters:
           Name  Flags
      baseClass  

  public abstract java.util.Set<java.lang.reflect.Executable> reachableMethodOverrides(java.lang.reflect.Executable);
    descriptor: (Ljava/lang/reflect/Executable;)Ljava/util/Set;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Signature: (Ljava/lang/reflect/Executable;)Ljava/util/Set<Ljava/lang/reflect/Executable;>;
    MethodParameters:
            Name  Flags
      baseMethod  
}
SourceFile: "Feature.java"
NestHost: org.graalvm.nativeimage.hosted.Feature
InnerClasses:
  public abstract FeatureAccess = org.graalvm.nativeimage.hosted.Feature$FeatureAccess of org.graalvm.nativeimage.hosted.Feature
  public abstract QueryReachabilityAccess = org.graalvm.nativeimage.hosted.Feature$QueryReachabilityAccess of org.graalvm.nativeimage.hosted.Feature
    RuntimeVisibleAnnotations: 
      org.graalvm.nativeimage.Platforms(value = {Lorg/graalvm/nativeimage/Platform$HOSTED_ONLY;})