I downloaded and unzipped the latest server version (0.25.4). For compilation I use:
mvn install -Dmaven.test.skip=true
First time the compilation is succesful. When I make a simple change in HttpAPILogic.java file or just save the file, at the end of compilation process I get:
Failed to execute goal org.apache.maven.plugins:maven-shade-plugin:3.0.0:shade (default) on project client: Error creating shaded jar: Invalid signature file digest for Manifest main attributes -> [Help 1]