css is empty in spring boot app

Vaadin 6 / 7 / 8
1

Hi All,
I am working on a Spring boot app with Vaadin. After a compile the css is missed.
When I check it, the target directory contains a classes/VAADIN/themes/horse directory. This directory contains all scss files correctly, but when I try to load it in a browse I’ve get an error:
com.vaadin.client.ApplicationConnection
SEVERE: CSS files may have not loaded properly.
When I try to download it directly with:
http://localhost:8080/VAADIN/themes/horse/styles.css I’ve get an empty file!
my pom.xml is like this:

<?xml version="1.0" encoding="UTF-8"?>


4.0.0
com.zamek.horse
Horse
0.0.1-SNAPSHOT
jar
Horse
Horse application

org.springframework.boot
spring-boot-starter-parent
1.5.4.RELEASE



<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
<vaadin.version>8.0.6</vaadin.version>



vaadin-addons
http://maven.vaadin.com/vaadin-addons


rxtx
http://repo.opennms.org/maven2




javax.servlet
javax.servlet-api
provided


com.vaadin
vaadin-server


com.vaadin
vaadin-push


com.vaadin
vaadin-client-compiled


com.vaadin
vaadin-themes


com.vaadin
vaadin-spring-boot-starter


org.springframework.boot
spring-boot-starter-test
test


com.google.guava
guava
22.0


com.vaadin
vaadin-icons
2.0.0


org.vaadin
viritin
1.61
jar

org.springframework.boot spring-boot-starter-data-jpa org.springframework.boot spring-boot-starter-jdbc org.springframework.boot spring-boot-starter-thymeleaf com.vaadin.addon jpacontainer 4.0.0 org.postgresql postgresql runtime com.jolbox bonecp 0.8.0.RELEASE org.springframework.boot spring-boot-starter-test test org.hibernate hibernate-entitymanager org.vaadin.alump.labelbutton labelbutton-addon 0.1.3 javax.mail javax.mail-api javax.activation activation 1.1.1 org.springframework spring-context-support org.rxtx rxtx 2.2pre2 com.vaadin vaadin-bom ${vaadin.version} pom import src/main/java **/*.java src/main/resources src/main/webapp org.springframework.boot spring-boot-maven-plugin org.apache.maven.plugins maven-resources-plugin 3.0.2

my ui use horse theme:
@SpringUI
@Theme(“horse”)
@Widgetset(“com.zamek.horse.widgetset.HorseWidgetSet”)
public class HorseUI extends UI {
…}

What went wrong?

thx
Zamek

2

Hi All,

When I compile it with mvn clean install, and I run jar directly it works well!

3

I switched back to vaadin 8.0.5 and everything works well:)