Examples of java.util.Random.nextBytes()

java.util.Random.nextBytes()
Generates random bytes and places them into a user-supplied byte array. The number of random bytes produced is equal to the length of the byte array.
The method {@code nextBytes} is implemented by class {@code Random}as if by:
```
  {@code}public void nextBytes(byte[] bytes)  for (int i = 0; i < bytes.length; ) for (int rnd = nextInt(), n = Math.min(bytes.length - i, 4); n-- > 0; rnd >>= 8) bytes[i++] = (byte)rnd; }}
```
@param bytes the byte array to fill with random bytes @throws NullPointerException if the byte array is null @since 1.1

    public void testBucketToRAFFreeWhileFile() throws IOException {
        int len = 4095;
        Random r = new Random(21162101);
        TempBucket bucket = (TempBucket) factory.makeBucket(1024);
        byte[] buf = new byte[len];
        r.nextBytes(buf);
        OutputStream os = bucket.getOutputStream();
        os.write(buf.clone());
        os.close();
        assertTrue(bucket.isRAMBucket());
        assertEquals(len, bucket.size());

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    public void testBucketToRAFFreeWhileFileFreeRAF() throws IOException {
        int len = 4095;
        Random r = new Random(21162101);
        TempBucket bucket = (TempBucket) factory.makeBucket(1024);
        byte[] buf = new byte[len];
        r.nextBytes(buf);
        OutputStream os = bucket.getOutputStream();
        os.write(buf.clone());
        os.close();
        assertTrue(bucket.isRAMBucket());
        assertEquals(len, bucket.size());

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    public void testBucketToRAFFreeWhileFileMigrateFirst() throws IOException {
        int len = 4095;
        Random r = new Random(21162101);
        TempBucket bucket = (TempBucket) factory.makeBucket(1024);
        byte[] buf = new byte[len];
        r.nextBytes(buf);
        OutputStream os = bucket.getOutputStream();
        os.write(buf.clone());
        os.close();
        assertTrue(bucket.isRAMBucket());
        assertEquals(len, bucket.size());

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    public void testBucketToRAFWhileFile() throws IOException {
        int len = 4095;
        Random r = new Random(21162101);
        TempBucket bucket = (TempBucket) factory.makeBucket(1024);
        byte[] buf = new byte[len];
        r.nextBytes(buf);
        OutputStream os = bucket.getOutputStream();
        os.write(buf.clone());
        os.close();
        assertTrue(bucket.isRAMBucket());
        assertEquals(len, bucket.size());

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    public void testBucketToRAFFailure() throws IOException {
        int len = 4095;
        Random r = new Random(21162101);
        TempBucket bucket = (TempBucket) factory.makeBucket(1024);
        byte[] buf = new byte[len];
        r.nextBytes(buf);
        OutputStream os = bucket.getOutputStream();
        os.write(buf.clone());
        assertTrue(bucket.isRAMBucket());
        try {
            bucket.toRandomAccessBuffer();

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        PooledFileRandomAccessBuffer a = construct(sz);
        PooledFileRandomAccessBuffer b = construct(sz);
        byte[] buf1 = new byte[sz];
        byte[] buf2 = new byte[sz];
        Random r = new Random(1153);
        r.nextBytes(buf1);
        r.nextBytes(buf2);
        a.pwrite(0, buf1, 0, buf1.length);
        b.pwrite(0, buf2, 0, buf2.length);
        byte[] cmp1 = new byte[sz];
        byte[] cmp2 = new byte[sz];

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        PooledFileRandomAccessBuffer b = construct(sz);
        byte[] buf1 = new byte[sz];
        byte[] buf2 = new byte[sz];
        Random r = new Random(1153);
        r.nextBytes(buf1);
        r.nextBytes(buf2);
        a.pwrite(0, buf1, 0, buf1.length);
        b.pwrite(0, buf2, 0, buf2.length);
        byte[] cmp1 = new byte[sz];
        byte[] cmp2 = new byte[sz];
        a.pread(0, cmp1, 0, cmp1.length);

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public class DataInputBufferTest {
    @Test
    public void testRandom() throws IOException {
        Random random = new Random();
        byte[] bytes = new byte[1024*1024];
        random.nextBytes(bytes);


        DataInputBuffer.FastByteArrayInputStream bis = new DataInputBuffer.FastByteArrayInputStream(bytes);
        int read = 0;
        int n = 0;
        while ( true )

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    streamingHash64Factory = classInstance("net.jpountz.xxhash.StreamingXXHash64" + impl + "$Factory");


    // make sure it can run
    final byte[] bytes = new byte[100];
    final Random random = new Random();
    random.nextBytes(bytes);
    final int seed = random.nextInt();


    final int h1 = hash32.hash(bytes, 0, bytes.length, seed);
    final StreamingXXHash32 streamingHash32 = newStreamingHash32(seed);
    streamingHash32.update(bytes, 0, bytes.length);

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    final ApnsPayloadBuilder builder = new ApnsPayloadBuilder();
    final Random random = new Random();


    for (int i = 0; i < NOTIFICATIONS_PER_TEST; i++) {
      final byte[] token = new byte[32];
      random.nextBytes(token);


      builder.setAlertBody(new BigInteger(1024, new Random()).toString(16));


      this.notifications.add(new SimpleApnsPushNotification(token, builder.buildWithDefaultMaximumLength()));
    }

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