单元测试错误(JSF):方法中的Absent Code属性非本机或抽象

Question

当我尝试单元测试处理JSF组件的Java类(javax.faces.model.SelectItem)时,我收到一个奇怪的错误.我得到的错误是这样的:

java.lang.ClassFormatError: Absent Code attribute in method that is not native or abstract in class file javax/faces/model/SelectItem
        at java.lang.ClassLoader.defineClass1(Native Method)
        at java.lang.ClassLoader.defineClassCond(ClassLoader.java:632)
        at java.lang.ClassLoader.defineClass(ClassLoader.java:616)
        at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
        at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)
        at java.net.URLClassLoader.access$000(URLClassLoader.java:58)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:197)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
        ...

然后它到达我的代码(在ItemOptionsHandler.java中):
SelectItem [] items = new SelectItem [itemList.size()];

什么是这个错误所有关于???

感谢您的帮助!

这是我要测试的类:

package foo.web.converters;

import java.io.Serializable;
import java.util.List;
import javax.ejb.EJB;
import javax.faces.model.SelectItem;

import foo.business.facade.ItemFacade;
import foo.model.MyType;


public class ItemOptionsHandler implements Serializable {

   @EJB
   private ItemFacade facade;

   public void setFacade(ItemFacade facade) {
      this.facade = facade;
   }

   public SelectItem[] getSupplierItems() {

      List<MyType> itemList = facade.getSupplierItems();
      SelectItem[] items = new SelectItem[itemList.size()];
      int i = 0;

      // more stuff

      return items;
   }
}

这是测试:

package foo.web.converters;

import java.util.ArrayList;
import java.util.List;
import javax.faces.model.SelectItem;
import org.junit.After;
import org.junit.AfterClass;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;
import static org.junit.Assert.*;
import foo.facade.ItemFacade;
import foo.model.MyModel;

public class ItemOptionsHandlerTest {

   private ItemOptionsHandler instance = null;

   public ItemOptionsHandlerTest() {
   }

   @BeforeClass
   public static void setUpClass() throws Exception {
   }

   @AfterClass
   public static void tearDownClass() throws Exception {
   }

   @Before
   public void setUp() {
      instance = new ItemOptionsHandler();
      instance.setFacade(new BusinessFacadeTemp());
   }

   @After
   public void tearDown() {
   }

   @Test
   public void testGetSupplierItems() {
      System.out.println("getSupplierGroups");
      SelectItem[] expResult = null;
      SelectItem[] result = instance.getSupplierItems();
      assertEquals(expResult, result); 
   }

   private class BusinessFacadeTemp implements ItemFacade {
      @Override
      public List<MyTest> getSupplierItems() {
         return null;
      }


   }
}

以下是一些依赖项:

 <dependency>
         <groupId>javax</groupId>
         <artifactId>javaee-web-api</artifactId>
         <version>6.0</version>
         <scope>provided</scope>
      </dependency>


      <dependency>
         <groupId>javax.annotation</groupId>
         <artifactId>jsr250-api</artifactId>
         <version>1.0</version>
      </dependency>

      <dependency>
         <groupId>javax.faces</groupId>
         <artifactId>jsf-api</artifactId>
         <version>1.2</version>
      </dependency>

      <dependency>
         <groupId>javax.faces</groupId>
         <artifactId>jsf-impl</artifactId>
         <version>1.2-b19</version>
      </dependency>

Answer 1

您是否使用maven来解决依赖关系？如果是这样，这似乎是一个答案：http://weblogs.java.net/blog/ludo/archive/2007/01/java_ee_5_apis.html

您可以从磁盘下载 .jar 并使用它：

<dependency>
  <groupId>javax</groupId>
  <artifactId>javaee-web-api</artifactId>
  <version>6.0</version>
  <scope>provided</scope>
  <systemPath>/path/to/your/jar</systemPath>
</dependency>