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ORA-00600: internal error code

Interesting error found on Oracle XE installed for one of projects. After a run of test case that uses JDBC to perform some operations on database all tests started to fail with this exception:

Caused by: java.sql.SQLException: ORA-00600: internal error code, arguments:\
 [kdsgrp1], [], [], [], [], [], [], []
at oracle.jdbc.driver.DatabaseError.throwSqlException(
 at oracle.jdbc.driver.T4CTTIoer.processError(
 at oracle.jdbc.driver.T4CTTIoer.processError(
 at oracle.jdbc.driver.T4C8Oall.receive(
 at oracle.jdbc.driver.T4CPreparedStatement.doOall8(
 at oracle.jdbc.driver.T4CPreparedStatement.executeForRows(
 at oracle.jdbc.driver.OracleStatement.executeMaybeDescribe(

Restart of Oracle database did not work. Seems table space was broken. I rebuit the database (DROP, then CREATE) and error dissapeared.

Interesting ...