Most likely you have lambda expression inside one of your spring beans. Apparently, spring 3 beans can’t initialize if there is a lambda somewhere in their code. In case migration to spring 4 is not an option, try to rewrite your lambda expressions using anonymous classes, like Function<A,B> lambda = new Function() { public B … Read more
First: to inject values into a final field you have to use constructor injection see this question This means that you pass some unknown value into the constructor. Although the value never changes it is not constant, since the compiler cannot know this value, because its determined at runtime. And you can only use expressions … Read more
If anybody ever wants to prioritize custom handlers over default handlers added by spring, here’s a snippet that does it for me, I do this in a @Configuration file private @Inject RequestMappingHandlerAdapter adapter; @PostConstruct public void prioritizeCustomArgumentMethodHandlers () { List<HandlerMethodArgumentResolver> argumentResolvers = new ArrayList<> (adapter.getArgumentResolvers ()); List<HandlerMethodArgumentResolver> customResolvers = adapter.getCustomArgumentResolvers (); argumentResolvers.removeAll (customResolvers); argumentResolvers.addAll (0, … Read more
This is not specific to Tomcat. This is specific to the Servlet API. How the error page is determined is specified in chapter 9.9.2 of Servlet API specification 2.5. Here’s an extract of relevance: SRV.9.9.2 Error Pages If no error-page declaration containing an exception-type fits using the class-hierarchy match, and the exception thrown is a … Read more
It sounds like you’re on the right track with a servlet filter, what you probably need to do is wrap the servlet response object with one that detects when a 401 status code has been set and adds your custom header at that time: HttpServletResponse wrappedResponse = new HttpServletResponseWrapper(response) { public void setStatus(int code) { … Read more
The underlying class where this is handled is ResourceHttpMessageConverter and it closes the underlying input stream as is evident from here
Add the following in DispatcherServlet-servlet.xml. <bean id=”jacksonMessageConverter” class=”org.springframework.http.converter.json.MappingJacksonHttpMessageConverter”></bean> <bean class=”org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter”> <property name=”messageConverters”> <list> <ref bean=”jacksonMessageConverter”/> </list> </property> </bean>
You may try the following code: @ControllerAdvice public class ExceptionController { @ExceptionHandler(Exception.class) public ModelAndView handleError(HttpServletRequest request, Exception e) { Logger.getLogger(getClass().getName()).log(Level.SEVERE, “Request: ” + request.getRequestURL() + ” raised ” + e); return new ModelAndView(“error”); } @ExceptionHandler(NoHandlerFoundException.class) public ModelAndView handleError404(HttpServletRequest request, Exception e) { Logger.getLogger(getClass().getName()).log(Level.SEVERE, “Request: ” + request.getRequestURL() + ” raised ” + e); return new … Read more
I found a workaround putting a dummy dispatcherServlet-servlet.xml file under WEB-INF: <beans xmlns=”http://www.springframework.org/schema/beans” xmlns:xsi=”http://www.w3.org/2001/XMLSchema-instance” xsi:schemaLocation=”http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd”> <!– Do not remove this file! –> </beans>
Even though Alex’s solution works, I don’t believe in including 2 additional dependencies (Actuator and Cloud Context) just to be able to do one operation. Instead, I have combined his answer and modified my code in order to do what I wanted. So, first of all, it is crucial that the code is executed using … Read more