https://openjdk.java.net/ 
public interface com.sun.xml.internal.bind.v2.model.runtime.RuntimeReferencePropertyInfo extends com.sun.xml.internal.bind.v2.model.core.ReferencePropertyInfo<java.lang.reflect.Type, java.lang.Class>, com.sun.xml.internal.bind.v2.model.runtime.RuntimePropertyInfo
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: com.sun.xml.internal.bind.v2.model.runtime.RuntimeReferencePropertyInfo
  super_class: java.lang.Object
{
  public abstract java.util.Set<? extends com.sun.xml.internal.bind.v2.model.runtime.RuntimeElement> getElements();
    descriptor: ()Ljava/util/Set;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Signature: ()Ljava/util/Set<+Lcom/sun/xml/internal/bind/v2/model/runtime/RuntimeElement;>;
}
Signature: Ljava/lang/Object;Lcom/sun/xml/internal/bind/v2/model/core/ReferencePropertyInfo<Ljava/lang/reflect/Type;Ljava/lang/Class;>;Lcom/sun/xml/internal/bind/v2/model/runtime/RuntimePropertyInfo;
SourceFile: "RuntimeReferencePropertyInfo.java"