Hi Juan, You are using an old version of CAS, your best bet is to upgrade to a more recent version. You can check the latest CAS release here: https://github.com/apereo/cas/releases To minimized the change needed, use 5.3.7 would be Ok. 6.0.0 is better but you would need to change a fair bit in your enviornment (at least need to change to JDK11).
As for actually why this (i.e. ConcurrentModificationException) happen, I have search in the CAS PR and found the below: https://github.com/apereo/cas/pull/2649. If your problem is the same as the above, then maybe your problem exists in 5.1.x and is fixed in 5.2.x? Anyway, see if the above helps you! Cheers! - Andy -- - Website: https://apereo.github.io/cas - Gitter Chatroom: https://gitter.im/apereo/cas - List Guidelines: https://goo.gl/1VRrw7 - Contributions: https://goo.gl/mh7qDG --- You received this message because you are subscribed to the Google Groups "CAS Community" group. To unsubscribe from this group and stop receiving emails from it, send an email to cas-user+unsubscr...@apereo.org. To view this discussion on the web visit https://groups.google.com/a/apereo.org/d/msgid/cas-user/c5d86b60-005e-4989-bffb-24ab33f5bf97%40apereo.org.
