wget -c http://cdn.sencha.com/ext/gpl/ext-6.2.0-gpl.zip
wget -c http://cdn.sencha.com/cmd/6.2.1/no-jre/SenchaCmd-6.2.1-linux-amd64.sh.zip
wget -c http://cdn.sencha.com/ext/gpl/ext-6.2.0-gpl.zip
wget -c http://cdn.sencha.com/cmd/6.2.1/no-jre/SenchaCmd-6.2.1-linux-amd64.sh.zip
Download: StarUML.io
Source: jorgeancal
After installing StartUML successfully, modify LicenseManagerDomain.js as follow:
/**