package org.junit.runners.model;
   
   import java.lang.annotation.Annotation;
   import java.lang.reflect.Field;
   
   import org.junit.runners.BlockJUnit4ClassRunner;
   
   /**
    * Represents a field on a test class (currently used only for Rules in
   * {@link BlockJUnit4ClassRunner}, but custom runners can make other uses)
   *
   * @since 4.7
   */
  public class FrameworkField extends FrameworkMember<FrameworkField> {
      private final Field field;
  
      FrameworkField(Field field) {
          if (field == null) {
              throw new NullPointerException(
                      "FrameworkField cannot be created without an underlying field.");
          }
          this.field = field;
      }
  
      @Override
      public String getName() {
          return getField().getName();
      }
  
      public Annotation[] getAnnotations() {
          return field.getAnnotations();
      }
  
      public <T extends Annotation> T getAnnotation(Class<T> annotationType) {
          return field.getAnnotation(annotationType);
      }
  
      @Override
      public boolean isShadowedBy(FrameworkField otherMember) {
          return otherMember.getName().equals(getName());
      }
  
      @Override
      protected int getModifiers() {
          return field.getModifiers();
      }
  
      /**
       * @return the underlying java Field
       */
      public Field getField() {
          return field;
      }
  
      /**
       * @return the underlying Java Field type
       * @see java.lang.reflect.Field#getType()
       */
      @Override
      public Class<?> getType() {
          return field.getType();
      }
      
      @Override
      public Class<?> getDeclaringClass() {
          return field.getDeclaringClass();
      }
  
      /**
       * Attempts to retrieve the value of this field on {@code target}
       */
      public Object get(Object target) throws IllegalArgumentException, IllegalAccessException {
          return field.get(target);
      }
  
      @Override
      public String toString() {
          return field.toString();
      }
  }