diff -r d1036b776eee -r a94b172c3a93 src/java/de/uapcore/lightpit/AbstractLightPITServlet.java
--- a/src/java/de/uapcore/lightpit/AbstractLightPITServlet.java	Sat Dec 30 20:41:55 2017 +0100
+++ b/src/java/de/uapcore/lightpit/AbstractLightPITServlet.java	Sun Dec 31 17:43:39 2017 +0100
@@ -73,6 +73,12 @@
     
     /**
      * Invocation mapping gathered from the {@link RequestMapping} annotations.
+     * 
+     * Paths in this map must always start with a leading slash, although
+     * the specification in the annotation must not start with a leading slash.
+     * 
+     * The reason for this is the different handling of empty paths in 
+     * {@link HttpServletRequest#getPathInfo()}.
      */
     private final Map<HttpMethod, Map<String, HandlerMethod>> mappings = new HashMap<>();
 
@@ -145,9 +151,11 @@
                     if (params.length == 2
                             && HttpServletRequest.class.isAssignableFrom(params[0])
                             && HttpServletResponse.class.isAssignableFrom(params[1])) {
+                        
+                        final String requestPath = "/"+mapping.get().requestPath();
 
                         if (mappings.computeIfAbsent(mapping.get().method(), k -> new HashMap<>()).
-                                putIfAbsent(mapping.get().requestPath(),
+                                putIfAbsent(requestPath,
                                         (req, resp) -> invokeMapping(method, req, resp)) != null) {
                             LOG.warn("{} {} has multiple mappings",
                                     mapping.get().method(),
@@ -157,7 +165,7 @@
 
                         LOG.info("{} {} maps to {}",
                                 mapping.get().method(),
-                                mapping.get().requestPath(),
+                                requestPath,
                                 method.getName()
                         );
                     } else {
@@ -219,7 +227,7 @@
     
     private Optional<HandlerMethod> findMapping(HttpMethod method, HttpServletRequest req) {
         return Optional.ofNullable(mappings.get(method)).map(
-                (rm) -> rm.get(Optional.ofNullable(req.getPathInfo()).orElse(""))
+                (rm) -> rm.get(Optional.ofNullable(req.getPathInfo()).orElse("/"))
         );
     }