As you exercise business components, the Tester will direct any diagnostic information to JDeveloper's Message View. Right-clicking the Message View will display a menu which will let you:
Copy the diagnostic information. You can then paste the information wherever you want.
Save the diagnostic information to a file; that is, create a log file for the components being tested.
Change the log properties; that is, determine the type of diagnostic information logged and its format.
Clear the contents of the Message View; that is, clear the contents of the log for the components being tested.
Remove the Message View; that is, remove the log for the components being tested.