Analyze any Pre-Upgrade Information Tool warnings before you upgrade to the new release of Oracle Database. For each item that the tool reports, it provides you with information about how to fix the issue or warning.

For more detailed information , refer to My Oracle Support note 472937.1 for information about installed database components and schemas. Refer to My Oracle Support note 753041.1 for information about diagnosing components with NON VALID status.

• Updating Access Control Lists and Network Utility Packages
  Use this procedure to update access control lists (ACLs) and Network Utility Packages.
• Evaluate Dependencies and Add ACLs for Network Utility Packages
  You can receive a warning about network utility package dependencies. Use this procedure to evaluate the dependencies, and provide access by adding the appropriate access control lists (ACLs).