Using WebComponents with Java on the Server Side to harden the stack
summary
Shows how to instantiate client-side SAP ui5-webcomponents from Java by using Vaadin annotations (npm-package, js-module, tag) to generate server-side classes that call getElement().setProperty and addChild(getElement()) so complex trees render in the browser via Vaadin/Atmosphere. Tests run either full-stack with Selenium/TestBench or fast browserless unit tests using the Karibu-DSL test kit (JUnit5). Recommends heavy test coverage (mutation testing), Artifactory + Xray for full impact-graph scans, and notes projects typically contain ~80–90% external dependencies.
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chapters (12)
- 0:00Introduction and welcome
- 1:54Web components overview and use case
- 4:31SAP UI5 web components introduction
- 7:26Mapping web components to Java server side
- 10:16Setting properties and component trees
- 13:10Testing web components in Java
- 16:40Open source testing alternatives
- 19:32Dependency security and compliance
- 23:57Vulnerability scanning and impact graph
- 27:03Artifactory and X-Ray setup
- 29:10IDE plugin for vulnerability detection
- 31:17Conclusion and summary
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