[SOLVED] Caused by: java.awt.HeadlessException when trying to create a SWING/AWT frame from Spring Boot

In Spring Boot, when you try to create a Swing frame from the component that is the entry point of your app, you will get [code]Caused by: java.awt.HeadlessException[/code] To solve this, in your Application class in main, instead of: [code] SpringApplication.run (Application.class, args) [/code] use [code] SpringApplicationBuilder builder = new SpringApplicationBuilder(Application.class); builder.headless(false); ConfigurableApplicationContext context =…