https://projects.eclipse.org/projects/ee4j.grizzly/grizzly-framework: Grizzly Bill of Materials (BOM) (Oracle Corporation) 
public interface org.glassfish.grizzly.CloseListener<T extends org.glassfish.grizzly.Closeable, C extends org.glassfish.grizzly.ICloseType>
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: org.glassfish.grizzly.CloseListener
  super_class: java.lang.Object
{
  public abstract void onClosed(T, );
    descriptor: (Lorg/glassfish/grizzly/Closeable;Lorg/glassfish/grizzly/ICloseType;)V
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Exceptions:
      throws java.io.IOException
    Signature: (TT;TC;)V
    MethodParameters:
           Name  Flags
      closeable  
      type       
}
Signature: <T::Lorg/glassfish/grizzly/Closeable;C::Lorg/glassfish/grizzly/ICloseType;>Ljava/lang/Object;
SourceFile: "CloseListener.java"