Broken compatibility with Vaadin 25.0.x and Spring Boot 4.0.4

[iaklass]

Describe the bug

Hi there,

unfortunately, the OrgChart add-on is no longer compatible with Vaadin 25.0.x and Spring Boot 4.0.4. Due to updates to Jackson, certain annotations are no longer found.

Broken:
com.fasterxml.jackson.core:jackson-databind:2.21.1
com.fasterxml.jackson.core:jackson-annotations:2.20
com.fasterxml.jackson.core:jackson-core:2.21.1

The last working version is Spring Boot 4.0.3 with Jackson:
com.fasterxml.jackson.core:jackson-databind:2.20.2
com.fasterxml.jackson.core:jackson-annotations:2.20
com.fasterxml.jackson.core:jackson-core:2.20.2

Expected behavior

No exceptions anymore.

Minimal reproducible example

final OrgChart newOrgChart = new OrgChart(root);

Throws:
2026-03-26T10:45:07.958+01:00 ERROR 1 --- [app] [nio-8000-exec-9] c.v.flow.server.DefaultErrorHandler : Unexpected error: Could not initialize class com.fasterxml.jackson.databind.ObjectMapper
2026-03-26 10:45:07.960 java.lang.NoClassDefFoundError: Could not initialize class com.fasterxml.jackson.databind.ObjectMapper
2026-03-26 10:45:07.960 at com.flowingcode.vaadin.addons.orgchart.OrgChart.convertToJsonObj(OrgChart.java:110) ~[orgchart-addon-5.3.0.jar!/:5.3.0]
2026-03-26 10:45:07.960 at com.flowingcode.vaadin.addons.orgchart.OrgChart.setValue(OrgChart.java:100) ~[orgchart-addon-5.3.0.jar!/:5.3.0]
2026-03-26 10:45:07.960 at com.flowingcode.vaadin.addons.orgchart.OrgChart.(OrgChart.java:80) ~[orgchart-addon-5.3.0.jar!/:5.3.0]

Add-on Version

5.3.0

Vaadin Version

25.0.7

Additional information

Spring Boot Version 4.0.4