2017-05-16 14:39:08,435 INFO [16-UpgradeTaskBackgroundThread:pool-31-thread-1] [AbstractUpgradeManager] 4408 : Increase size of variable value in context to 4000 characters (post-bootstrap,
 priority)
2017-05-16 14:39:08,435 INFO [16-UpgradeTaskBackgroundThread:pool-31-thread-1] [AbstractUpgradeManager] -------------------------------------------------------------------------------------
----------
2017-05-16 14:39:08,436 INFO [16-UpgradeTaskBackgroundThread:pool-31-thread-1] [UpgradeTask4408ResizeVariableContextValueField] Oracle DBMS: proceeding with alter table
2017-05-16 14:39:08,476 WARN [16-UpgradeTaskBackgroundThread:pool-31-thread-1] [SqlExceptionHelper] SQL Error: 22859, SQLState: 99999
2017-05-16 14:39:08,477 ERROR [16-UpgradeTaskBackgroundThread:pool-31-thread-1] [SqlExceptionHelper] ORA-22859: invalid modification of columns

2017-05-16 14:39:08,487 ERROR [16-UpgradeTaskBackgroundThread:pool-31-thread-1] [AbstractUpgradeManager] org.springframework.orm.hibernate5.HibernateJdbcException: JDBC exception on Hiberna
te data access: SQLException for SQL [n/a]; SQL state [99999]; error code [22859]; error executing work; nested exception is org.hibernate.exception.GenericJDBCException: error executing wo
rk
org.springframework.orm.hibernate5.HibernateJdbcException: JDBC exception on Hibernate data access: SQLException for SQL [n/a]; SQL state [99999]; error code [22859]; error executing work;
nested exception is org.hibernate.exception.GenericJDBCException: error executing work
        at org.springframework.orm.hibernate5.SessionFactoryUtils.convertHibernateAccessException(SessionFactoryUtils.java:171)
        at org.springframework.orm.hibernate5.HibernateTemplate.doExecute(HibernateTemplate.java:344)
        at org.springframework.orm.hibernate5.HibernateTemplate.executeWithNativeSession(HibernateTemplate.java:309)
        at com.atlassian.bamboo.persistence.BambooConnectionTemplate$1.doInTransactionWithoutResult(BambooConnectionTemplate.java:35)
        at org.springframework.transaction.support.TransactionCallbackWithoutResult.doInTransaction(TransactionCallbackWithoutResult.java:34)
        at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:133)
        at com.atlassian.bamboo.persistence.BambooConnectionTemplate.execute(BambooConnectionTemplate.java:30)
        at com.atlassian.bamboo.upgrade.tasks.AbstractInHibernateTransactionUpgradeTask.doUpgrade(AbstractInHibernateTransactionUpgradeTask.java:35)
        at com.atlassian.bamboo.upgrade.AbstractUpgradeManager.runUpgradeTask(AbstractUpgradeManager.java:210)
        at com.atlassian.bamboo.upgrade.UpgradeManagerImpl.doUpgrade(UpgradeManagerImpl.java:95)
        ...
Caused by: org.hibernate.exception.GenericJDBCException: error executing work
        ...
Caused by: java.sql.SQLException: ORA-22859: invalid modification of columns
        ...
        at com.atlassian.bamboo.upgrade.tasks.v5_6.UpgradeTask4408ResizeVariableContextValueField.doUpgrade(UpgradeTask4408ResizeVariableContextValueField.java:58)