weblogic.xml.jaxp.RegistrySAXTransformerFactory求解

      小弟用的是weblogic10.3，之前项目跑在tomcat6.0.18没有任何问题，部署到weblogic上以后就一直报这么个错，高人救命！！！java.lang.ClassCastException: weblogic.xml.jaxp.RegistrySAXTransformerFactory
at javax.xml.transform.TransformerFactory.newInstance(Unknown Source)
at org.directwebremoting.convert.DOMConverter.<init>(DOMConverter.java:139)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at java.lang.Class.newInstance0(Class.java:355)
at java.lang.Class.newInstance(Class.java:308)
at org.directwebremoting.util.LocalUtil.classForName(LocalUtil.java:770)
at org.directwebremoting.dwrp.DefaultConverterManager.addConverterType(DefaultConverterManager.java:56)
at org.directwebremoting.impl.DwrXmlConfigurator.loadInits(DwrXmlConfigurator.java:203)
at org.directwebremoting.impl.DwrXmlConfigurator.configure(DwrXmlConfigurator.java:166)
at org.directwebremoting.impl.ContainerUtil.configureFromSystemDwrXml(ContainerUtil.java:249)
at org.directwebremoting.impl.ContainerUtil.configureContainerFully(ContainerUtil.java:409)
at org.directwebremoting.servlet.DwrServlet.init(DwrServlet.java:80)
at weblogic.servlet.internal.StubSecurityHelper$ServletInitAction.run(StubSecurityHelper.java:283)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:121)
at weblogic.servlet.internal.StubSecurityHelper.createServlet(StubSecurityHelper.java:64)
at weblogic.servlet.internal.StubLifecycleHelper.createOneInstance(StubLifecycleHelper.java:58)
at weblogic.servlet.internal.StubLifecycleHelper.<init>(StubLifecycleHelper.java:48)
at weblogic.servlet.internal.ServletStubImpl.prepareServlet(ServletStubImpl.java:539)
at weblogic.servlet.internal.WebAppServletContext.preloadServlet(WebAppServletContext.java:1976)