Incompatibility with dev mode in Vaadin 24.3.+? #186
Description
Describe the bug
When running in development mode, I observe the following output when starting up the initial application connection. Note that a) production mode works fine and b) these are css file packaged with twincolgrid. Might this be because of vaadin's change from vaadin.whitelisted-packages to vaadin.allowed-packages?
java.lang.IllegalStateException:
Failed to find the following css files in the `node_modules` or `/Users/mthome/rep/acjpa/browser/./src/main/frontend` directory tree:
- ./styles/twincol-grid.css
- ./styles/twin-col-grid-button.css
- ./styles/multiselect-cb-hide.css
Check that they exist or are installed. If you use a custom directory for your resource files instead of the default `frontend` folder then make sure it's correctly configured (e.g. set 'vaadin.frontend.frontend.folder' property)
at com.vaadin.flow.server.frontend.AbstractUpdateImports.getCssLines(AbstractUpdateImports.java:502) ~[flow-server-24.4.16.jar!/:24.4.16]
at com.vaadin.flow.server.frontend.AbstractUpdateImports.process(AbstractUpdateImports.java:376) ~[flow-server-24.4.16.jar!/:24.4.16]
at com.vaadin.flow.server.frontend.AbstractUpdateImports.run(AbstractUpdateImports.java:161) ~[flow-server-24.4.16.jar!/:24.4.16]
at com.vaadin.flow.server.frontend.TaskUpdateImports.execute(TaskUpdateImports.java:80) ~[flow-server-24.4.16.jar!/:24.4.16]
at com.vaadin.flow.server.frontend.NodeTasks.execute(NodeTasks.java:348) ~[flow-server-24.4.16.jar!/:24.4.16]
at com.vaadin.base.devserver.startup.DevModeInitializer.runNodeTasks(DevModeInitializer.java:356) ~[vaadin-dev-server-24.4.16.jar!/:?]
at com.vaadin.base.devserver.startup.DevModeInitializer.lambda$initDevModeHandler$0(DevModeInitializer.java:297) ~[vaadin-dev-server-24.4.16.jar!/:?]
...
Expected behavior
dev mode doesn't crash in an application that uses twincolgrid
Minimal reproducible example
No response
Add-on Version
2.9.5
Vaadin Version
24.6.5
Additional information
Dev mode works for me in vaadin versions prior to 24. production mode works for all including the current 24.6.5. I cannot tell if this is a vaadin bug, a twincolgrid issue, or a configuration issue somewhere in my build environment.
Also, my application uses gradle (currently 8.7), so it is possible that there is a difference between the vaadin gradle and maven plugins.