I am using SpringBoot 3 to access a SQLite database. My problem is, that when fetching entities parallely, I get a random ArrayIndexOutOfBoundsException in a Java class that parses a date.

Issue:
I’m encountering an error while working with Hibernate annotations, specifically when using the @Embeddable annotation. The error message I’m receiving is:

Upgraded a java project which was on Java 8 + spring 4.0 + hibernate 3.3 to java 11 + spring 5.3 + hibernate 5.6 . After the upgrade the hibernate select queries become very slow. When there’re many results for a select query then the hibernate 5.6 is taking a lot of time compared to hibernate 3.3. What could be the reason?

I am new to spring boot and I am trying to send a simple DELETE request via postman, but i am stuck with error 500. Can someone point the errors in my code?.