Efficient way to load a linked list C like datastructure

//Class that is similar to what I'm using which is part of the JNI
public class API_DATASTRUCTURE_T implements Serializable, Cloneable 
{
  // Fields
  public static String[] _meths;
  private API_DATASTRUCTURE_T p_next_rec;
  private String name;
 
  // Constructors
  public API_DATASTRUCTURE_T() { }
 
  // Methods
  public API_DATASTRUCTURE_T getP_next_rec() { return null;}
  public String get_name() { return null;}
  private static native void initFIDs();
  public void setP_next_rec(API_DATASTRUCTURE_T aPI_DATASTRUCTURE_T) { }
  public void setname(String string) { }
}
 
 
//Snippet of code to fill up the above structure
 
		//this variable will be my final object that is full with data
        API_DATASTRUCTURE_T setupDataStructure = new API_DATASTRUCTURE_T();
        
        //Use this variable to keep a pointer reference when traversing the structure above
        API_DATASTRUCTURE_T pointerToNextStructure = new API_DATASTRUCTURE_T();
 
		//this is a collection with the names
		Iterator<String> dataIt = collectionWithData.iterator();
        
        //Fill first structure
        if(dataIt.hasNext())
        {
        	setupDataStructure.setname(dataIt.next());
		}
        
        //if we have more than one then keep a pointer reference so we can traverse the structure
        if(dataIt.hasNext())
        {
            pointerToNextStructure = setupDataStructure;
        }
        
        while(dataIt.hasNext())
        {
            //place holder for data for each iteration.
            API_DATASTRUCTURE_T placeHolder = new API_DATASTRUCTURE_T();
            
 
            //setting name
            placeHolder.setname(dataIt.next());
            
            pointerToNextStructure.setP_next_rec(placeHolder);
 
            //Traversing through the structure while keeping a reference to the pointer
            pointerToNextStructure = pointerToNextStructure.getP_next_rec(); 
        }        
 
		//WHEN I GET HERE I CAN USE setupDataStructure which is now full with data.

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