https://openjdk.java.net/ 
public interface com.sun.tools.internal.xjc.generator.util.BlockReference
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: com.sun.tools.internal.xjc.generator.util.BlockReference
  super_class: java.lang.Object
{
  public abstract com.sun.codemodel.internal.JBlock get(boolean);
    descriptor: (Z)Lcom/sun/codemodel/internal/JBlock;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    MethodParameters:
        Name  Flags
      create  
}
SourceFile: "BlockReference.java"