private Object[] popArray() throws PDFParseException {
  Object obj=stack.pop();
  if (!(obj instanceof Object[])) {
    throw new PDFParseException("Expected an [array] here: " + obj.toString());
  }
  return (Object[])obj;
}

private Object [ ] popArray ( ) throws PDFParseException { Object obj = stack . pop ( ) ; if ( ! ( obj instanceof Object [ ] ) ) { throw new PDFParseException ( "Expected an [array] here: " + obj . toString ( ) ) ; } return ( Object [ ] ) obj ; }
pop an array off the stack
