Caused by: java.sql.SQLNonTransientConnectionException: Data source rejected establishment of connection, message from server: "Too many connections"
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(
SQLError.java:110)
at
... 1 more
Exception in thread "Thread-24" org.springframework.transaction.CannotCreateTransactionException: Could not open JPA EntityManager for transaction; nested exception is org.hibernate.exception.JDBCConnectionException: Unable to acquire JDBC Connection