In this security guide:
https://docs.oracle.com/javase/8/docs/technotes/guides/security/crypto/CryptoSpec.html#SecureRandom

Please strip some of the method specifics from:
 synchronized public void setSeed(byte[] seed)
 public void setSeed(long seed)
 synchronized public void nextBytes(byte[] bytes)

to:
 void setSeed(byte[] seed)
 void setSeed(long seed)
 void nextBytes(byte[] bytes)