### Question:
EncryptedPrivateKeyAndCertChain implements Cloneable { public boolean validate() { return myAlias != null && myCertificateChain != null && myEncryptedPrivateKey != null && myKeyAlgorithm != null; }  @Override EncryptedPrivateKeyAndCertChain clone(); String getAlias(); List<? extends X509Certificate> getCertificateChain(); PrivateKey getPrivateKey(CipherFactory cipherFactory); SimplePrivateKeyProvider getPrivateKeyProvider(final CipherFactory cipherFactory); void setAlias(String alias); void setCertificateChain(Collection<? extends X509Certificate> chain); void setPrivateKey(PrivateKey pk, CipherFactory cipherFactory); void setPrivateKeyProvider(PrivateKeyProvider in, CipherFactory cipherFactory); @Override String toString(); boolean validate();  }### Answer:
@Test public void testValidate() throws JAXBException, GeneralSecurityException { EncryptedPrivateKeyAndCertChain obj; obj = new EncryptedPrivateKeyAndCertChain(); Assert.assertFalse(obj.validate()); obj = new EncryptedPrivateKeyAndCertChain(); obj.setAlias(TEST_ALIAS); Assert.assertFalse(obj.validate()); obj = new EncryptedPrivateKeyAndCertChain(); obj.setPrivateKey(getRSAPrivateKey(), ourCipherFactory); Assert.assertFalse(obj.validate()); obj = new EncryptedPrivateKeyAndCertChain(); obj.setCertificateChain(getRSACertChain()); Assert.assertFalse(obj.validate()); obj = new EncryptedPrivateKeyAndCertChain(); obj.setPrivateKey(getRSAPrivateKey(), ourCipherFactory); obj.setCertificateChain(getRSACertChain()); Assert.assertFalse(obj.validate()); obj = new EncryptedPrivateKeyAndCertChain(); obj.setAlias(TEST_ALIAS); obj.setCertificateChain(getRSACertChain()); Assert.assertFalse(obj.validate()); obj = new EncryptedPrivateKeyAndCertChain(); obj.setAlias(TEST_ALIAS); obj.setPrivateKey(getRSAPrivateKey(), ourCipherFactory); Assert.assertFalse(obj.validate()); obj = new EncryptedPrivateKeyAndCertChain(); obj.setAlias(TEST_ALIAS); obj.setPrivateKey(getRSAPrivateKey(), ourCipherFactory); obj.setCertificateChain(getRSACertChain()); Assert.assertTrue(obj.validate()); }