See: Description
| Class | Description | 
|---|---|
| DefaultPrintStream | 
 A  
PrintStream subclass that's wired into System.out. | 
| DefaultPrintWriter | 
 A  
PrintWriter subclass that's wired into System.out. | 
| NullIcon | 
 An empty  
Icon. | 
| NullPrintStream | 
 A subclass of  
PrintStream whose methods ignore the content being
 written. | 
| NullPrintWriter | 
 A subclass of  
PrintWriter whose methods ignore the content
  being written. | 
| NullSecurityManager | 
 A subclass of  
SecurityManager that allows all of the
  checkXXX methods to return successfully. | 
Contains utility classes that use the Null Object pattern.
Related Documentation
See Extending JDeveloper Using the Addin API for detailed information.