https://projects.eclipse.org/projects/ee4j.grizzly/grizzly-http: Grizzly Bill of Materials (BOM) (Oracle Corporation) 
public interface org.glassfish.grizzly.http.util.CharChunk$CharInputChannel
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: org.glassfish.grizzly.http.util.CharChunk$CharInputChannel
  super_class: java.lang.Object
{
  public abstract int realReadChars(char[], int, int);
    descriptor: ([CII)I
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Exceptions:
      throws java.io.IOException
    MethodParameters:
      Name  Flags
      cbuf  
      off   
      len   
}
SourceFile: "CharChunk.java"
NestHost: org.glassfish.grizzly.http.util.CharChunk
InnerClasses:
  public abstract CharInputChannel = org.glassfish.grizzly.http.util.CharChunk$CharInputChannel of org.glassfish.grizzly.http.util.CharChunk