Added sendError(int) to HttpFacade.Response.

integration/spring-security/src/main/java/org/keycloak/adapters/springsecurity/facade/WrappedHttpServletResponse.java

@@ -95,6 +95,15 @@ class WrappedHttpServletResponse implements Response {
         }
     }
 
+    @Override
+    public void sendError(int code) {
+        try {
+            response.sendError(code);
+        } catch (IOException e) {
+            throw new RuntimeException("Unable to set HTTP status", e);
+        }
+    }
+
     @Override
     public void sendError(int code, String message) {
         try {