tomcat8 org.apache.cxf.busfactory.getBusfactoryClass无法确定BusF

Question

我已经通过Arquillian（1.1.12. -final）部署了一个应用程序，该应用程序被查询了Webervice。该应用程序具有APACHE CXF 3.1.10作为提供的依赖关系；所有CXF和Spring Jar都添加到Tomcat上的endorsed库目录中（我已经确认了所有认可的罐子都正确加载了）。

尽管如此，我遇到了上述错误消息。堆栈的相关位是

java.lang.NullPointerException
    at org.apache.cxf.BusFactory.getBusFactoryClass(BusFactory.java:397)
    at org.apache.cxf.BusFactory.newInstance(BusFactory.java:317)
    at org.apache.cxf.BusFactory.newInstance(BusFactory.java:304)
    at org.apache.cxf.BusFactory.getDefaultBus(BusFactory.java:107)
    at org.apache.cxf.BusFactory.createThreadBus(BusFactory.java:244)
    at org.apache.cxf.BusFactory.getThreadDefaultBus(BusFactory.java:228)
    at org.apache.cxf.jaxws.ServiceImpl.initialize(ServiceImpl.java:135)
    at org.apache.cxf.jaxws.ServiceImpl.<init>(ServiceImpl.java:129)
    at org.apache.cxf.jaxws.spi.ProviderImpl.createServiceDelegate(ProviderImpl.java:82)
    at javax.xml.ws.Service.<init>(Service.java:77)

[SNIP]

java.lang.NullPointerException
    at org.apache.cxf.bus.extension.ExtensionManagerImpl.load(ExtensionManagerImpl.java:166)
    at org.apache.cxf.bus.extension.ExtensionManagerImpl.load(ExtensionManagerImpl.java:160)
    at org.apache.cxf.bus.extension.ExtensionManagerImpl.load(ExtensionManagerImpl.java:107)
    at org.apache.cxf.bus.extension.ExtensionManagerBus.<init>(ExtensionManagerBus.java:178)
    at org.apache.cxf.bus.extension.ExtensionManagerBus.<init>(ExtensionManagerBus.java:185)
    at org.apache.cxf.bus.CXFBusFactory.createBus(CXFBusFactory.java:40)
    at org.apache.cxf.bus.CXFBusFactory.createBus(CXFBusFactory.java:36)
    at org.apache.cxf.bus.CXFBusFactory.createBus(CXFBusFactory.java:32)
    at org.apache.cxf.bus.spring.SpringBusFactory.createBus(SpringBusFactory.java:146)
    at org.apache.cxf.bus.spring.SpringBusFactory.createBus(SpringBusFactory.java:122)
    at org.apache.cxf.bus.spring.SpringBusFactory.createBus(SpringBusFactory.java:94)
    at org.apache.cxf.bus.spring.SpringBusFactory.createBus(SpringBusFactory.java:83)
    at org.apache.cxf.BusFactory.getDefaultBus(BusFactory.java:107)
    at org.apache.cxf.BusFactory.createThreadBus(BusFactory.java:244)
    at org.apache.cxf.BusFactory.getThreadDefaultBus(BusFactory.java:228)
    at org.apache.cxf.jaxws.ServiceImpl.initialize(ServiceImpl.java:135)
    at org.apache.cxf.jaxws.ServiceImpl.<init>(ServiceImpl.java:129)
    at org.apache.cxf.jaxws.spi.ProviderImpl.createServiceDelegate(ProviderImpl.java:82)
    at javax.xml.ws.Service.<init>(Service.java:77)

NPE发生在Web服务的初始化期间。失败的代码为

// org.apache.cxf.bus.extension.ExtensionManagerImpl
final void load(String resource) throws IOException {
    if (loader != getClass().getClassLoader()) {
        load(resource, getClass().getClassLoader());
    }
    load(resource, loader);
}

事实证明，呼叫getClass().getClassLooader()返回null。我对这个结果感到困惑，只是找出getClass（）。getClassloader（）是无效的，为什么？这对我来说仍然没有意义，因为我认为这意味着使用BootClassPath加载了CXF（！？！）。

Answer 1

问题是由将CXF JARS放置在$CATALINA_HOME/endoresed中引起的。这是放置所有WebApp共有的罐子的错误位置。如http://tomcat.apache.org/tomcat-7.0.0-doc/class-loader-howto.html，" xml Parsers and Java"部分。