public void testFull1() {
final RootThrowablePatternConverter converter = RootThrowablePatternConverter.newInstance(null);
final Throwable cause = new NullPointerException("null pointer");
final Throwable parent = new IllegalArgumentException("IllegalArgument", cause);
final LogEvent event = new Log4jLogEvent("testLogger", null, this.getClass().getName(), Level.DEBUG,
new SimpleMessage("test exception"), parent);
final StringBuilder sb = new StringBuilder();
converter.format(event, sb);
final String result = sb.toString();
// System.out.print(result);
assertTrue("Missing Exception",