Question

Karaf 2.3.2

据我所知，我的代码或容器配置中没有引用Apache cxf，但是当我尝试使用Exchange Web服务时，cxf接管了jax实现，因为我没有已安装cxf：

./ data / karaf.out:javax.xml.ws.spi.FactoryFinder $ ConfigurationError：找不到提供者org.apache.cxf.jaxws.spi.ProviderImpl

我创建了文件META-INF \ services \ javax.xml.ws.spi.Provider，内容为com.sun.xml.internal.ws.spi.ProviderImpl，但是在Karaf中这似乎没有注册。

尽管没有引用cxf，但为什么它试图加载cxf的任何想法？或者是否有另一种方法来强制使用默认实现？

非常感谢

对于ref，似乎试图加载cxf实现的provider.provide（）方法

/** 
 * 
 * Creates a new provider object. 
 * <p>
 * The algorithm used to locate the provider subclass to use consists 
 * of the following steps: 
 * <p>
 * <ul>
 * <li>
 *   If a resource with the name of 
 *   <code>META-INF/services/javax.xml.ws.spi.Provider</code>
 *   exists, then its first line, if present, is used as the UTF-8 encoded 
 *   name of the implementation class. 
 * </li>
 * <li>
 *   If the $java.home/lib/jaxws.properties file exists and it is readable by 
 *   the <code>java.util.Properties.load(InputStream)</code> method and it contains 
 *   an entry whose key is <code>javax.xml.ws.spi.Provider</code>, then the value of 
 *   that entry is used as the name of the implementation class. 
 * </li>
 * <li>
 *   If a system property with the name <code>javax.xml.ws.spi.Provider</code>
 *   is defined, then its value is used as the name of the implementation class. 
 * </li>
 * <li>
 *   Finally, a default implementation class name is used. 
 * </li>
 * </ul>
 * 
 */ 
public static Provider provider() { 
    try { 
        Object provider = getProviderUsingServiceLoader(); 
        if (provider == null) { 
            provider = FactoryFinder.find(JAXWSPROVIDER_PROPERTY, DEFAULT_JAXWSPROVIDER); 
        } 
        if (!(provider instanceof Provider)) { 
            Class pClass = Provider.class; 
            String classnameAsResource = pClass.getName().replace('.', '/') + ".class"; 
            ClassLoader loader = pClass.getClassLoader(); 
            if(loader == null) { 
                loader = ClassLoader.getSystemClassLoader(); 
            } 
            URL targetTypeURL  = loader.getResource(classnameAsResource); 
            throw new LinkageError("ClassCastException: attempting to cast" + 
                   provider.getClass().getClassLoader().getResource(classnameAsResource) + 
                   "to" + targetTypeURL.toString() ); 
        } 
        return (Provider) provider; 
    } catch (WebServiceException ex) { 
        throw ex; 
    } catch (Exception ex) { 
        throw new WebServiceException("Unable to createEndpointReference Provider", ex); 
    } 
}

Answer 1

首先你不应该安装CXF软件包，其次，你需要公开＆＃34; com.sun.xml.internal.ws.spi＆＃34;打包到系统包。

Answer 2

事实证明，Karaf包含了FactoryFinder.java的实现，它在lib / endorsed文件夹中查找cxf实现。我刚刚删除了这个文件夹。

如何阻止cxf尝试接管javax.xml.ws.spi.Provider的默认实现？

2 个答案: