### Question:
BSHGroupSelector extends BSHTransactionParticipant implements GroupSelector { public String defaultSelect(long id, Serializable context) { return ""; }  void setConfiguration(Element e); String select(long id, java.io.Serializable context); String defaultSelect(long id, Serializable context);  }### Answer:
@Test public void testDefaultSelect() throws Throwable { String result = new BSHGroupSelector().defaultSelect(100L, new StreamCorruptedException()); assertEquals("", result, "result"); }