Am I in the correct developer mode? developer mode for chartfx-chart/: An exception occurred while executing the Java class. Exception in Application start method

[yezhengli-Mr9]

Am I in the correct developer mode? developer mode for chartfx-chart/: An exception occurred while executing the Java class. Exception in Application start method

[yezhengli-Mr9]

By above "developer mode" steps, feel fail at first step of public Node getChartPanel(final Stage primaryStage) {

chart-fx/chartfx-samples/src/main/java/io/fair_acc/sample/chart/SimpleChartSample.java

Line 26 in ed86318

final DefaultNumericAxis yAxis = new DefaultNumericAxis();

and by Intellij tracking of production mode and "developer" mode, Pane.class-> AbstractAxisParameter.java/.class ->LauncherImpl.class throws the Exception.

              try {
                        var4.set(true);
                        Stage var2 = new Stage();
                        StageHelper.setPrimary(var2, true);
                        var12.start(var2);
                    } catch (Throwable var3) {
                        System.err.println("Exception in Application start method");
                        startError = var3;
                        error = true;
                    }

where for

chart-fx/chartfx-chart/src/main/java/io/fair_acc/chartfx/axes/spi/AbstractAxisParameter.java

Line 140 in ed86318

private static final String CHART_CSS = Objects.requireNonNull(Chart.class.getResource("chart.css")).toExternalForm();

1. production code: .m2/repository/io/fair-acc/chartfx/11.3.0/chartfx-11.3.0.jar!/io/fair_acc/chartfx/chart.css
2. dev code: null