@Test
 public void shouldOverrideDefaultSSLContextByDefault() throws Exception {
   System.clearProperty("javax.net.ssl.keyStore");
   SlaveConnectionManager instance = SlaveConnectionManager.getInstance();
   assertNotEquals(defaultContext, SSLContext.getDefault());
 }
 @Test
 public void shouldNotOverrideDefaultSSLContextIfKeystoreIsSet() throws Exception {
   System.setProperty("javax.net.ssl.keyStore", "NONE");
   SlaveConnectionManager instance = SlaveConnectionManager.getInstance();
   assertEquals(defaultContext, SSLContext.getDefault());
 }
 @Before
 public void setUp() throws Exception {
   SlaveConnectionManager.reset();
   defaultContext = SSLContext.getDefault();
 }