The article discusses the transition of a legacy client-server application to a web-based platform using CheerpJ by Leaning Technologies. This solution utilizes a WebAssembly-based Java Virtual Machine to run existing Java applications in modern web browsers, thereby minimizing user disruption from updates. With the application developed in Scala 3, the author demonstrates how CheerpJ can work around its Java 8 limitations, providing a method to implement a simple email data query GUI that interacts with server data while focusing on ease of use for non-technical users.
CheerpJ, a Java Virtual Machine in WebAssembly, allows legacy Java applications to be run directly in web browsers, alleviating update burdens for desktop applications.
Despite being limited to Java 8 compatibility, CheerpJ's ability to leverage other JVM languages like Scala 3 helps circumvent constraints while developing modern web-based GUIs.
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