https://openjdk.java.net/ 
public interface org.graalvm.compiler.nodes.util.JavaConstantFormattable
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: org.graalvm.compiler.nodes.util.JavaConstantFormattable
  super_class: java.lang.Object
{
  public abstract java.lang.String format(org.graalvm.compiler.nodes.util.JavaConstantFormatter);
    descriptor: (Lorg/graalvm/compiler/nodes/util/JavaConstantFormatter;)Ljava/lang/String;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    MethodParameters:
           Name  Flags
      formatter  
}
SourceFile: "JavaConstantFormattable.java"