求助！关于一个webservice客户端项目的报错

[bozhi3017]

最近写了一个webservice程序 ，用来将车站大屏数据传入内网，但是隔段时间总是报这错，望各位技术大牛能指点一二。
2017-07-06 09:27:40.035 [] [] ERROR [DefaultQuartzScheduler_Worker-7] <org.quartz.core.JobRunShell.run(JobRunShell.java:200)> Job group1.realtimedata threw an unhandled Exception:
javax.xml.ws.WebServiceException: Unable to createEndpointReference Provider
at javax.xml.ws.spi.Provider.provider(Provider.java:145)
at javax.xml.ws.Service.<init>(Service.java:77)
at com.service.DataSyncService.<init>(DataSyncService.java:44)
at com.quertz.QuertzJob.execute(QuertzJob.java:94)
at org.quartz.core.JobRunShell.run(JobRunShell.java:191)
at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:516)
Caused by: java.lang.NullPointerException
at org.apache.catalina.loader.WebappClassLoaderBase.findResources(WebappClassLoaderBase.java:1498)
at java.lang.ClassLoader.getResources(ClassLoader.java:1185)
at java.util.ServiceLoader$LazyIterator.hasNext(ServiceLoader.java:340)
at java.util.ServiceLoader$1.hasNext(ServiceLoader.java:439)
at javax.xml.ws.spi.Provider.getProviderUsingServiceLoader(Provider.java:165)
at javax.xml.ws.spi.Provider.provider(Provider.java:125)
... 5 more

[bozhi3017]

时间过长，自行结贴。

[SilenceViking]

虽然没能帮楼主解决问题，但还是帮楼主顶顶！

[huayang1]

httpcore缺失，下载一个放上去就好了http://hc.apache.org/downloads.cgi