Java反射修改类的静态字段信息

可以参考如下代码实现对类中的静态字段进行值修改，包括final修饰符的字段:

package java.lang;

import java.lang.reflect.Field;


public class ClassHelpers {

    private static Field findFieldRecursiveImpl(Class<?> clazz, String fieldName) throws NoSuchFieldException {
        try {
            return clazz.getDeclaredField(fieldName);
        } catch (NoSuchFieldException e) {
            while (true) {
                clazz = clazz.getSuperclass();
                if (clazz == null || clazz.equals(Object.class))
                    break;

                try {
                    return clazz.getDeclaredField(fieldName);
                } catch (NoSuchFieldException ignored) {
                }
            }
            throw e;
        }
    }

    public static void setStaticObjectField(Class<?> clazz, String fieldName, Object value) {

        try {
            Field field = findFieldRecursiveImpl(clazz, fieldName);
            field.setAccessible(true);
            field.set(null, value);
        } catch (NoSuchFieldException e) {
            e.printStackTrace();
        }catch (IllegalAccessException e) {
            e.printStackTrace();
        } catch (IllegalArgumentException e) {
            e.printStackTrace();
        }
    }

    public static void setStaticIntField(Class<?> clazz, String fieldName, int value) {
        try {
            Field field = findFieldRecursiveImpl(clazz, fieldName);
            field.setAccessible(true);
            field.set(null, value);
        } catch (NoSuchFieldException e) {
            e.printStackTrace();
        }catch (IllegalAccessException e) {
            e.printStackTrace();
        } catch (IllegalArgumentException e) {
            e.printStackTrace();
        }
    }

  
    public static void setStaticLongField(Class<?> clazz, String fieldName, long value) {
        try {
            Field field = findFieldRecursiveImpl(clazz, fieldName);
            field.setAccessible(true);
            field.set(null, value);
        } catch (NoSuchFieldException e) {
            e.printStackTrace();
        }catch (IllegalAccessException e) {
            e.printStackTrace();
        } catch (IllegalArgumentException e) {
            e.printStackTrace();
        }
    }


    public static void setStaticShortField(Class<?> clazz, String fieldName, short value) {
        try {
            Field field = findFieldRecursiveImpl(clazz, fieldName);
            field.setAccessible(true);
            field.set(null, value);
        } catch (NoSuchFieldException e) {
            e.printStackTrace();
        }catch (IllegalAccessException e) {
            e.printStackTrace();
        } catch (IllegalArgumentException e) {
            e.printStackTrace();
        }
    }

}