builder1.addErrorPage(new ErrorPage("/defaultErrorPage"));
builder1.addErrorPage(new ErrorPage("/404", 404));
builder1.addErrorPage(new ErrorPage("/500", 500));
builder1.addErrorPage(new ErrorPage("/parentException", ParentException.class));
builder1.addErrorPage(new ErrorPage("/childException", ChildException.class));
builder1.addErrorPage(new ErrorPage("/runtimeException", RuntimeException.class));
builder1.setClassIntrospecter(TestClassIntrospector.INSTANCE)
.setClassLoader(ErrorPageTestCase.class.getClassLoader())
.setContextPath("/servletContext1")
.setServletStackTraces(ServletStackTraces.NONE)