http://www.antlr.org: A framework for constructing recognizers, compilers, and translators from grammatical descriptions containing Java, C#, C++, or Python actions. (ANTLR) 
public interface org.antlr.runtime.TokenSource
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: org.antlr.runtime.TokenSource
  super_class: java.lang.Object
{
  public abstract org.antlr.runtime.Token nextToken();
    descriptor: ()Lorg/antlr/runtime/Token;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT

  public abstract java.lang.String getSourceName();
    descriptor: ()Ljava/lang/String;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
}
SourceFile: "TokenSource.java"