public String debug(){
  StringBuilder builder=new StringBuilder();
  for (  Entry<JournalFile,AtomicInteger> entry : negCounts.entrySet()) {
    builder.append(" file = " + entry.getKey() + " negcount value = "+ entry.getValue()+ "\n");
  }
  return builder.toString();
}

public String debug ( ) { StringBuilder builder = new StringBuilder ( ) ; for ( Entry < JournalFile , AtomicInteger > entry : negCounts . entrySet ( ) ) { builder . append ( " file = " + entry . getKey ( ) + " negcount value = " + entry . getValue ( ) + "\n" ) ; } return builder . toString ( ) ; }
receive debug information about the journal
