Question

I was trying to fetch the value of an static private attribute via reflection, but it fails with an error.

Class class = home.Student.class;
Field field = studentClass.getDeclaredField("nstance");
Object obj = field.get(null);

The exception I get is:

java.lang.IllegalAccessException: Class com.test.ReflectionTest can not access a member of class home.Student with modifiers "private static".

Moreover, there is a private I need to invoke, with the following code.

Method method = studentClass.getMethod("addMarks");
method.invoke(studentClass.newInstance(), 1);

but the problem is the Student class is a singleton class, and constructor in private, and cannot be accessed.

Answer 1

You can set the field accessible:

field.setAccessible(true);