Serious Internal Engine Error(12) and Serious Internal Engine Error (65535)

Sometimes Protection of .jar file fails with error “Serious Internal Engine Error(12) and Serious Internal Engine Error (65535)” , this issue generally arises due to large size of .jar files.

Below are some suggestions that can be applied:

  1. Remove those classes from the .jar file that are not required to be protected.
  2. Protect the .jar file with only those classes  which are required to be protected.
  3. Include the unprotected .class files again in the protected jar file.