How to fix the Oracle error ORA-29549: class string.string has changed, Java session state cleared?

In this post, you’ll learn more about the Oracle ErrorORA-29549: class string.string has changed, Java session state cleared with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-29549: class string.string has changed, Java session state cleared

Reason for the Error ORA-29549: class string.string has changed, Java session state cleared

A class in use by the current session was redefined or dropped, invalidating the current Java session state and requiring that it be cleared.

How to fix the Error ORA-29549: class string.string has changed, Java session state cleared ?

You can fix this error in Oracle by following the below steps

No action required.