Error Window Add-on is a UI component add-on for Vaadin Flow
This add-on shows a dialog to inform that an error was cause by an exception.
The dialog shows different information depending on the running mode of the application:
The dialog (ErrorWindow) is invoked automatically through a com.vaadin.flow.server.VaadinServiceInitListener (WindowErrorHandler) or just by itself calling the "open" method.
It is posible to customize the message shown.
This add-on is built using server side API
Add the following dependencies in your pom.xml file:
<dependency>
<groupId>com.flowingcode.vaadin.addons</groupId>
<artifactId>error-window-vaadin</artifactId>
<version>X.Y.Z</version>
</dependency>
Release versions are available from Maven Central repository. For SNAPSHOT versions see here.
To see the demo, navigate to http://localhost:8080/
See here
The issues for this add-on are tracked on its github.com page. All bug reports and feature requests are appreciated.
Contributions are welcome, but there are no guarantees that they are accepted as such.
As first step, please refer to our Development Conventions page to find information about Conventional Commits & Code Style requirements.
Then, follow these steps for creating a contribution:
This add-on is distributed under Apache License 2.0. For license terms, see LICENSE.txt.
Error Window Add-on is written by Flowing Code S.A.
Button errorButton =
new Button(
"Throw Error",
event -> {
Integer.parseInt("asdf");
});
Button throwErrorWithoutErrorHandler =
new Button(
"Throw Error without an error handler",
ev -> {
try {
Integer.parseInt("asdf");
} catch (NumberFormatException e) {
ErrorManager.showError(e);
}
});
By default, Vaadin Flow only includes com/vaadin/flow/component
to be always scanned for UI components and views. For this reason, the add-on might need to be allowed in order to display correctly.
To do so, just add com.flowingcode
to the vaadin.allowed-packages
property in src/main/resources/application.properties
, like:
vaadin.allowed-packages = com.vaadin,org.vaadin,dev.hilla,com.flowingcode
More information on Spring scanning configuration here.