https://tomcat.apache.org/: Tomcat Connectors and HTTP parser 
public interface org.apache.tomcat.util.http.fileupload.FileItemHeaders
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: org.apache.tomcat.util.http.fileupload.FileItemHeaders
  super_class: java.lang.Object
{
  public abstract java.lang.String getHeader(java.lang.String);
    descriptor: (Ljava/lang/String;)Ljava/lang/String;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    MethodParameters:
      Name  Flags
      name  

  public abstract java.util.Iterator<java.lang.String> getHeaders(java.lang.String);
    descriptor: (Ljava/lang/String;)Ljava/util/Iterator;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Signature: (Ljava/lang/String;)Ljava/util/Iterator<Ljava/lang/String;>;
    MethodParameters:
      Name  Flags
      name  

  public abstract java.util.Iterator<java.lang.String> getHeaderNames();
    descriptor: ()Ljava/util/Iterator;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Signature: ()Ljava/util/Iterator<Ljava/lang/String;>;
}
SourceFile: "FileItemHeaders.java"