### Question:
EncryptedTransaction implements Serializable { @Override public int hashCode() { return 47 * 3 + Objects.hashCode(this.hash); } EncryptedTransaction(final MessageHash hash, final byte[] encodedPayload);  EncryptedTransaction(); @PrePersist void onPersist(); MessageHash getHash(); void setHash(final MessageHash hash); byte[] getEncodedPayload(); void setEncodedPayload(final byte[] encodedPayload); long getTimestamp(); @Override int hashCode(); @Override boolean equals(final Object obj);  }### Answer:
@Test public void sameObjectHasSameHash() { final EncryptedTransaction et = new EncryptedTransaction(); assertThat(et.hashCode()).isEqualTo(et.hashCode()); }