controller scanner: add empty path if not path found when register route

greenlaw110 · greenlaw110 · commit 79ca08a5c1e3 · 2018-01-11T07:15:00.000+11:00
diff --git a/src/main/java/act/controller/bytecode/ControllerByteCodeScanner.java b/src/main/java/act/controller/bytecode/ControllerByteCodeScanner.java
@@ -970,6 +970,9 @@ public void visit(ClassNode classNode) throws Osgl.Break {
 
         private void registerOnContext(String ctxPath, String action) {
             S.Buffer sb = S.newBuffer();
+            if (paths.isEmpty()) {
+                paths.add("");
+            }
             for (Router r : routers) {
                 for (String urlPath : paths) {
                     if (!urlPath.startsWith("/")) {
