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这个简单的 Wicket 页面在 GlassFish 3.1.2.2 服务器中完美运行，但在 GlassFish 4.0 中部署时无法运行。非常重要的是要注意不包含 @Resource 注释的其他页面可以完美运行。

public class IndexPage extends WebPage {

  // this EJB injection works as expected
  @EJB(name = AnyManager.NAME)
  AnyManager anyMgr;

  // this JNDI Resource is defined as java.util.Properties at JNDI/Custom Resources of GlassFish admin console
  // this resource can be looked up using normal InitialContext.doLookup() method
  @Resource(name = "anyResource")
  Properties config;

  public IndexPage(final PageParameters p) {
    super(p);
  }
}

它给出了以下异常：


Last cause: org.apache.wicket.proxy.ILazyInitProxy not found by org.glassfish.hk2.external.cglib [27]
WicketMessage: Can't instantiate page using constructor 'public hu.app.IndexPage(org.apache.wicket.request.mapper.parameter.PageParameters)' and argument ''. An exception has been thrown during construction!

查看堆栈跟踪（从 IndexPage 构造函数的第一行开始）：


Root cause:

java.lang.ClassNotFoundException: org.apache.wicket.proxy.ILazyInitProxy not found by org.glassfish.hk2.external.cglib [27]
     at org.apache.felix.framework.BundleWiringImpl.findClassOrResourceByDelegation(BundleWiringImpl.java:1532)
     at org.apache.felix.framework.BundleWiringImpl.access$400(BundleWiringImpl.java:75)
     at org.apache.felix.framework.BundleWiringImpl$BundleClassLoader.loadClass(BundleWiringImpl.java:1955)
     at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
     at java.lang.ClassLoader.defineClass1(Native Method)
     at java.lang.ClassLoader.defineClass(ClassLoader.java:792)
     at java.lang.reflect.Method.invoke(Method.java:606)
     at net.sf.cglib.core.ReflectUtils.defineClass(ReflectUtils.java:384)
     at net.sf.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:219)
     at net.sf.cglib.proxy.Enhancer.createHelper(Enhancer.java:377)
     at net.sf.cglib.proxy.Enhancer.create(Enhancer.java:285)
     at org.apache.wicket.proxy.LazyInitProxyFactory.createProxy(LazyInitProxyFactory.java:190)
     at org.wicketstuff.javaee.injection.JavaEEProxyFieldValueFactory.getCachedProxy(JavaEEProxyFieldValueFactory.java:149)
     at org.wicketstuff.javaee.injection.JavaEEProxyFieldValueFactory.getFieldValue(JavaEEProxyFieldValueFactory.java:79)
     at org.apache.wicket.injection.Injector.inject(Injector.java:111)
     at org.wicketstuff.javaee.injection.JavaEEComponentInjector.inject(JavaEEComponentInjector.java:68)
     at org.wicketstuff.javaee.injection.JavaEEComponentInjector.onInstantiation(JavaEEComponentInjector.java:74)
     at org.apache.wicket.application.ComponentInstantiationListenerCollection$1.notify(ComponentInstantiationListenerCollection.java:38)
     at org.apache.wicket.application.ComponentInstantiationListenerCollection$1.notify(ComponentInstantiationListenerCollection.java:34)
     at org.apache.wicket.util.listener.ListenerCollection.notify(ListenerCollection.java:80)
     at org.apache.wicket.application.ComponentInstantiationListenerCollection.onInstantiation(ComponentInstantiationListenerCollection.java:33)
     at org.apache.wicket.Component.(Component.java:683)
     at org.apache.wicket.MarkupContainer.(MarkupContainer.java:121)
     at org.apache.wicket.Page.(Page.java:168)
     at org.apache.wicket.Page.(Page.java:132)
     at org.apache.wicket.markup.html.WebPage.(WebPage.java:76)
     at hu.app.IndexPage.(IndexPage.java:56)

在做了很多谷歌搜索之后，我有了一个想法，尝试在我的一个管理器 bean 中进行注入，并为它定义了一个简单的 getter。请参阅以下几行：

@Local
public interface AnyManager extends EntityManager {
  public static final String NAME = "ejb/AnyManager";
  Properties getConfig();
}

@Stateless(name = AnyManager.NAME)
public class AnyManagerImpl extends AbstractEntityManager implements AnyManager {

  @Resource(name = "iOIRConfig")
  Properties config;

  @Override
  public Properties getConfig() {
    return config;
  }
}

我已经像这样更改了我的 Wicket 页面：

public class IndexPage extends WebPage {

  @EJB(name = AnyManager.NAME)
  AnyManager anyMgr;

  // so I have commented out
  // @Resource(name = "anyResource")
  Properties config;

  public IndexPage(final PageParameters p) {
    super(p);

    // and get the value from one of my EJB manager class
    config = anyMgr.getConfig();
  }
}

这对我有用。我不喜欢这种类型的解决方案，我仍在寻找真正的解释和解决方案。GlassFish 4 中可能会发生什么变化而导致这种现象？我在 GlassFish 3 中没有这种奇怪的效果。

我对 GlassFish 3 和 GlassFish 4 都进行了全新安装。

我的应用程序是一个 EAR 应用程序，它包含一个 EJB.jar、WEBAPP.war 和一个带有共享公共 jar 的 lib/ 文件夹。也许这是某种类加载器问题，因为 EJB 和 WebApp 位于不同的文件夹中？但是为什么@EJB 有效而@Resource 无效呢？

可能是 Java EE 7 实现问题或 GlassFish 4 中的简单错误？

你能帮忙的话，我会很高兴。

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0 回答 0