Editing a dictionary on AEM Forms fails with "Cannot read property 'isCollection' of null at ae (datadictionarycontrol.min.js:269)"


Could not initialize class com.rsa.cryptoj.o.dl error is logged in the error.log file while applying the reader extension service on a PDF form.


  • AEM Forms - All versions


Could not initialize class com.rsa.cryptoj.o.dl error occurs when the installation path of your AEM instance contains spaces. If any folder name within the path of the installation has spaces, it will result in this error.


Rename the folder(s) to remove the spaces and restart the server.