The XML Language Server is an implementation of the Language Server Protocol. It currently supports complex schema-based XML validation. The server is written in Java and is based on Eclipse LSP4J, the Java binding for the Language Server Protocol.
git clone https://github.com/microclimate-dev2ops/xml-language-server.git
cd xml-language-server/server/xml-server
./mvnw clean package
See the CONTRIBUTING document for details on submitting pull requests.