- 
    Backport 
- 
    Resolution: Fixed
- 
     P2 P2
- 
    None
- backport of
- 
                    JDK-6912018 CMS: guarantee(head() != 0,"The head of the list cannot be NULL") -           
- Closed
 
-         
 P2
  P2                     
    
            
        
        JDK-6912018
        CMS: guarantee(head() != 0,"The head of the list cannot be NULL")
    
