Java version 9 is set as the default system Java after updating Java. This Java version is not supported by our modeling tools*.
The solution is to download and install version 18.4 SP1 or a later original signed .dmg file, as it has the required Java version bundled in.
If you are using an earlier version than 18.4 SP1 and cannot start the modeling tool*, please do the following:
Example: JAVA_HOME=/Applications/MagicDraw/jre1.8.0_102/mac/Contents/Home/jre
*MagicDraw, Cameo EA, Cameo Systems Modeler
** cameoea.properties, csm.properties
***camocea.sh, csm.sh