GrailsExceptionResolver should not reuse cached controller attribute to find the given error path

Author: rainboyan

grace-web-mvc/src/main/groovy/org/grails/web/errors/GrailsExceptionResolver.java

@@ -63,6 +63,7 @@ public class GrailsExceptionResolver extends SimpleMappingExceptionResolver impl
     @Override
     public ModelAndView resolveException(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) {
         // don't reuse cached controller attribute
+        request.removeAttribute(GrailsApplicationAttributes.CONTROLLER);
         request.removeAttribute(GrailsApplicationAttributes.GRAILS_CONTROLLER_CLASS_AVAILABLE);
 
         ex = findWrappedException(ex);
@@ -127,6 +128,7 @@ protected void setStatus(HttpServletRequest request, HttpServletResponse respons
         GrailsWrappedRuntimeException gwre = new GrailsWrappedRuntimeException(this.servletContext, e);
         mv.addObject(WebUtils.ERROR_EXCEPTION_ATTRIBUTE, gwre);
         mv.addObject(WebUtils.EXCEPTION_ATTRIBUTE, gwre);
+        mv.setStatus(HttpStatusCode.valueOf(HttpServletResponse.SC_INTERNAL_SERVER_ERROR));
     }
 
     protected void logStackTrace(Exception e, HttpServletRequest request) {

grace-web-mvc/src/test/groovy/org/grails/web/errors/GrailsExceptionResolverSpec.groovy

@@ -4,6 +4,7 @@ import jakarta.servlet.http.HttpServletResponse
 import jakarta.servlet.http.HttpServletRequest
 
 import org.apache.groovy.util.Maps
+import org.springframework.http.HttpStatusCode
 import org.springframework.mock.web.MockHttpServletRequest
 import org.springframework.mock.web.MockHttpServletResponse
 import org.springframework.validation.SimpleErrors
@@ -30,6 +31,7 @@ class GrailsExceptionResolverSpec extends Specification {
 
         then:
         modelAndView.viewName == '/error'
+        modelAndView.status == HttpStatusCode.valueOf(500)
     }
 
 }