### Question:
BSH extends QBeanSupport implements Runnable { public void initService() { bsh = new Interpreter (); BshClassManager bcm = bsh.getClassManager(); try { bcm.setClassPath(getServer().getLoader().getURLs()); } catch (UtilEvalError e) { e.printStackTrace(); } bcm.setClassLoader(getServer().getLoader()); }  void initService(); void startService(); void run();  }### Answer:
@Test public void testInitServiceThrowsNullPointerException() throws Throwable { BSH bSH = new BSH(); try { bSH.initService(); fail("Expected NullPointerException to be thrown"); } catch (NullPointerException ex) { if (isJavaVersionAtMost(JAVA_14)) { assertNull(ex.getMessage(), "ex.getMessage()"); } else { assertEquals("Cannot invoke \"org.jpos.q2.Q2.getLoader()\" because the return value of \"org.jpos.q2.qbean.BSH.getServer()\" is null", ex.getMessage(), "ex.getMessage()"); } } }