Running the extension through the debug in VS Code, you can see that there is still some process running after the Extension development window closes:

We probably just need to await for the LSP client to close before stopping the extension: https://github.com/redhat-developer/vscode-xml/blob/master/src/extension.ts#L58
Running the extension through the debug in VS Code, you can see that there is still some process running after the Extension development window closes:
We probably just need to
awaitfor the LSP client to close before stopping the extension: https://github.com/redhat-developer/vscode-xml/blob/master/src/extension.ts#L58