Run Spring Boot + Gradle + GWT
已回答
I create simple GWT project
For a basis took https://github.com/feedm3/spring-boot-gwt
java -jar gwt.jar work well
How run It from Idea Run Configuration

Work only server side
Client side
http://localhost:8080/index.html don't work =(
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You need a GWT configuration like this:
I specifically left the GWT configuration, I do not have war now. Spring Boot - jar is created
Delete webapp
Create static folder in resource
etc
Then you may want to ask the author of this sample project since he states that you need to use 2 different configurations to run it.
Serge is right, you need to have 2 different configurations to run this project inside IDEA. One for Spring Boot and one for GWT.