Fixes to address Jersey routing issue reported in #112. This is a new bug introduced with the fixes for #84. Added unit tests

Author: sapessi

aws-serverless-java-container-jersey/src/main/java/com/amazonaws/serverless/proxy/jersey/JerseyHandlerFilter.java

@@ -97,22 +97,10 @@ public void destroy() {
     @SuppressFBWarnings({ "SERVLET_HEADER", "SERVLET_QUERY_STRING" })
     private ContainerRequest servletRequestToContainerRequest(ServletRequest request) {
         Timer.start("JERSEY_SERVLET_REQUEST_TO_CONTAINER");
-        URI basePathUri;
         URI requestPathUri;
         String basePath = "/";
         HttpServletRequest servletRequest = (HttpServletRequest)request;
 
-        try {
-            if (servletRequest.getContextPath().equals("")) {
-                basePathUri = URI.create(basePath);
-            } else {
-                basePathUri = new URI(servletRequest.getContextPath());
-            }
-        } catch (URISyntaxException e) {
-            log.error("Could not read base path URI", e);
-            basePathUri = URI.create(basePath);
-        }
-
         UriBuilder uriBuilder = UriBuilder.fromPath(servletRequest.getPathInfo());
         uriBuilder.replaceQuery(AwsProxyHttpServletRequest.decodeValueIfEncoded(servletRequest.getQueryString()));
 
@@ -125,7 +113,7 @@ private ContainerRequest servletRequestToContainerRequest(ServletRequest request
         apiGatewayProperties.setProperty(JERSEY_SERVLET_REQUEST_PROPERTY, servletRequest);
 
         ContainerRequest requestContext = new ContainerRequest(
-                basePathUri,
+                URI.create(basePath), // for routing within Jersey we always assume the base path is "/"
                 requestPathUri,
                 servletRequest.getMethod().toUpperCase(Locale.ENGLISH),
                 (SecurityContext)servletRequest.getAttribute(JAX_SECURITY_CONTEXT_PROPERTY),

aws-serverless-java-container-jersey/src/test/java/com/amazonaws/serverless/proxy/jersey/JerseyAwsProxyTest.java

@@ -278,6 +278,30 @@ public void exception_mapException_mapToNotImplemented() {
         assertEquals(Response.Status.NOT_IMPLEMENTED.getStatusCode(), response.getStatusCode());
     }
 
+    @Test
+    public void stripBasePath_route_shouldRouteCorrectly() {
+        AwsProxyRequest request = new AwsProxyRequestBuilder("/custompath/echo/status-code", "GET")
+                                          .json()
+                                          .queryString("status", "201")
+                                          .build();
+        handler.stripBasePath("/custompath");
+        AwsProxyResponse output = handler.proxy(request, lambdaContext);
+        assertEquals(201, output.getStatusCode());
+        handler.stripBasePath("");
+    }
+
+    @Test
+    public void stripBasePath_route_shouldReturn404() {
+        AwsProxyRequest request = new AwsProxyRequestBuilder("/custompath/echo/status-code", "GET")
+                                          .json()
+                                          .queryString("status", "201")
+                                          .build();
+        handler.stripBasePath("/custom");
+        AwsProxyResponse output = handler.proxy(request, lambdaContext);
+        assertEquals(404, output.getStatusCode());
+        handler.stripBasePath("");
+    }
+
     private void validateMapResponseModel(AwsProxyResponse output) {
         validateMapResponseModel(output, CUSTOM_HEADER_KEY, CUSTOM_HEADER_VALUE);
     }