Why Does My MySQL Connection Throw a 'ClassCastException: java.math.BigInteger Cannot Be Cast to java.lang.Long' Error?

ClassCastException: java.math.BigInteger Cannot Be Cast to java.lang.Long During MySQL Connection

When connecting to a MySQL database, an error message indicating "ClassCastException: java.math.BigInteger cannot be cast to java.lang.Long" may occur. This error stems from an underlying casting issue during the connection process.

The error occurs because the JDBC driver, responsible for establishing the connection, internally performs casting operations. One of these operations involves attempting to cast an instance of the java.math.BigInteger class to an instance of the java.lang.Long class. However, as the error message suggests, this casting is not possible due to differences between the two classes.

To resolve this issue, it is recommended to update the version of MySQL Connector/J being used. The error often occurs when using an outdated version of the connector. Checking the latest version available at https://dev.mysql.com/downloads/connector/j/ and upgrading to a newer release, such as 5.1.47 or 8.0.12, should address the issue.

By updating the connector, any underlying issues or casting problems that are incompatible with your MySQL version will be resolved. The newer version of the connector will provide the necessary compatibility and correct casting behavior, ensuring successful connection to the MySQL database.

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