how to read string value using java reflection

[Reshma Reddy]

Hi All,
I am setting string(model class string) value in my service class i want to get this in my model class to do compare operation. I am trying to get string value in model class but getting 'null'.
Can any one check my code what I am doign wrong.
service class code

//fileDetailsList is coming from database
for(File file : fileDetailsList){
				file.setSortColumn(sortColumn);
			}
			Collections.sort(fileDetailsList);

in model class trying to get using reflection

File file = new File();
Class  aClass = file.getClass;
		try {
                                               
			Field field = aClass.getField("sortColumn");
			String fieldName = field.getName();
                                                 field.setAccessible(true); 
		      value = (String) field.get(file);
			System.out.println("@@@@@@@@@@@@@@@@@-field value-@@@@@@@@@@@@@@@@@@"+value);
			
		}  catch (IllegalArgumentException e) {
			e.printStackTrace();
		} catch (IllegalAccessException e) {
			e.printStackTrace();
		}catch (SecurityException e) {
			e.printStackTrace();
		} catch (NoSuchFieldException e) {
			e.printStackTrace();
		}

[Reshma Reddy]

found issue,now getting value..

File file = new File();   
Class  aClass = file.getClass;   
        try {   
                                                  
            Field field = aClass.getField("sortColumn");   
            String fieldName = field.getName();   
                                                 field.setAccessible(true);    
              value = (String) field.get(file);   
            System.out.println("@@@@@@@@@@@@@@@@@-field value-@@@@@@@@@@@@@@@@@@"+value);   
               
        }  catch (IllegalArgumentException e) {   
            e.printStackTrace();   
        } catch (IllegalAccessException e) {   
            e.printStackTrace();   
        }catch (SecurityException e) {   
            e.printStackTrace();   
        } catch (NoSuchFieldException e) {   
            e.printStackTrace();   
        }  

Class  aClass = this.getClass;
		try {
                                               
			Field field = aClass.getField("sortColumn");
			String fieldName = field.getName();
                                                 field.setAccessible(true); 
		      value = (String) field.get(this);
			System.out.println("@@@@@@@@@@@@@@@@@-field value-@@@@@@@@@@@@@@@@@@"+value);
			
		}  catch (IllegalArgumentException e) {
			e.printStackTrace();
		} catch (IllegalAccessException e) {
			e.printStackTrace();
		}catch (SecurityException e) {
			e.printStackTrace();
		} catch (NoSuchFieldException e) {
			e.printStackTrace();
		}