docs: public void close()
                      throws ObjectManagerException
      {
          if (Tracing.isAnyTracingEnabled() && trace.isEntryEnabled())
              trace.entry(this,
                          cclass,
                          "Close");
  
          try {
              dataInputStream.close();
              sectorValidatedInputStream.close();
  
          } catch (java.io.IOException exception) {
              // No FFDC Code Needed.
              ObjectManager.ffdc.processException(cclass, "close", exception, "1:98:1.13");
  
              if (Tracing.isAnyTracingEnabled() && trace.isEntryEnabled())
                  trace.exit(this, cclass
                             , "close"
                             , exception
                                  );
              throw new PermanentIOException(this
                                             , exception);
          } // catch (java.io.IOException exception).  
  
          if (Tracing.isAnyTracingEnabled() && trace.isEntryEnabled())
              trace.exit(this, cclass
                         , "close"
                              );
      }