try ( InputStream is = f.getInputStream() ) {
                    verifyRandom(bufSize, length, is);
                }

            }
            finally {
                f.delete();
            }
        }
    }


    static void verifyRandom ( int bufSize, long length, InputStream is ) throws IOException {
        verifyRandom(bufSize, length, true, is);
    }

                    writeRandom(bufSize, l, raf);
                    assertEquals(l, raf.getFilePointer());
                    raf.seek(0);
                    assertEquals(0, raf.getFilePointer());
                    verifyRandom(bufSize, l, raf);
                    assertEquals(l, raf.getFilePointer());
                }
                assertEquals(l, f.length());
            }
            finally {
                f.delete();

                    assertEquals(f.getAttributes(), t.getAttributes());

                    try ( InputStream is = t.getInputStream() ) {
                        ReadWriteTest.verifyRandom(bufSize, length, is);
                    }
                }
                finally {
                    d1.delete();
                }
            }
            finally {
                f.delete();