fix actframework#124

greenlaw110 · greenlaw110 · commit dc7eb660a73a · 2017-04-23T11:41:28.000+10:00
diff --git a/pom.xml b/pom.xml
@@ -22,8 +22,9 @@
 - #159 generated pid file not get deleted when app process is killed
 - #157 SEO support on routing
 - #156 Compile error is not displayed at dev mode
-- #153 When `@NotNull` used along with `@DbBind` it shall return 404 if binding failed 
+- #153 When `@NotNull` used along with `@DbBind` it shall return 404 if binding failed
 - #152 Allow annotation based interceptor class to be registered as global interceptor
+- #124 Improve error reporting on "Unknown accept content type"
 
 - #136 Allow `@With` annotation to be used on specific handler method
 
diff --git a/src/main/java/act/view/RenderAny.java b/src/main/java/act/view/RenderAny.java
@@ -59,7 +59,16 @@ public void apply(H.Request req, H.Response resp) {
     public void apply(ActionContext context) {
         H.Format fmt = context.accept();
         if (fmt == UNKNOWN) {
-            throw E.unsupport("Unknown accept content type");
+            H.Request req = context.req();
+            H.Method method = req.method();
+            String methodInfo = S.concat(method.name(), " method to ");
+            String acceptHeader = req.header(H.Header.Names.ACCEPT);
+            throw E.unsupport(S.concat(
+                    "Unknown accept content type(",
+                    acceptHeader,
+                    "): ",
+                    methodInfo,
+                    req.url()));
         }
         Result result = null;
         if (JSON == fmt) {
