@Test
 public void testSetExcludedCipherSuites() throws Exception {
   configurable.setSupportedCipherSuites(new String[] {"A", "B"});
   configuration.setExcludedCipherSuites("A");
   configuration.configure(configurable);
   assertTrue(Arrays.equals(new String[] {"B"}, configurable.getEnabledCipherSuites()));
 }