Java 中 XMLGregorianCalendar 的 NoClassDefFoundError
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NoClassDefFoundError for XMLGregorianCalendar in Java
提问by SKC...
I am using Java6,Apache Tomcat and Jersey RESTful. While unmarshelling the XML to JAXB, I am getting the following exception.Can any body help me on this ? Note: This Exception is inconsistent.
我正在使用 Java6、Apache Tomcat 和 Jersey RESTful。在将 XML 解包为 JAXB 时，我收到以下异常。任何机构都可以帮助我吗？注意：此异常是不一致的。
java.lang.NoClassDefFoundError: org/apache/xerces/jaxp/datatype/XMLGregorianCalendarImpl$Parser
at org.apache.xerces.jaxp.datatype.XMLGregorianCalendarImpl.<init>(Unknown Source)
at org.apache.xerces.jaxp.datatype.DatatypeFactoryImpl.newXMLGregorianCalendar(Unknown Source)
at com.sun.xml.bind.v2.model.impl.RuntimeBuiltinLeafInfoImpl.parse(RuntimeBuiltinLeafInfoImpl.java:543)
at com.sun.xml.bind.v2.model.impl.RuntimeBuiltinLeafInfoImpl.parse(RuntimeBuiltinLeafInfoImpl.java:517)
at com.sun.xml.bind.v2.runtime.reflect.TransducedAccessor$CompositeTransducedAccessorImpl.parse(TransducedAccessor.java:241)
at com.sun.xml.bind.v2.runtime.unmarshaller.LeafPropertyLoader.text(LeafPropertyLoader.java:61)
at com.sun.xml.bind.v2.runtime.unmarshaller.UnmarshallingContext.text(UnmarshallingContext.java:462)
at com.sun.xml.bind.v2.runtime.unmarshaller.StAXStreamConnector.processText(StAXStreamConnector.java:367)
at com.sun.xml.bind.v2.runtime.unmarshaller.StAXStreamConnector.handleEndElement(StAXStreamConnector.java:245)
at com.sun.xml.bind.v2.runtime.unmarshaller.StAXStreamConnector.bridge(StAXStreamConnector.java:214)
at com.sun.xml.bind.v2.runtime.unmarshaller.UnmarshallerImpl.unmarshal0(UnmarshallerImpl.java:358)
at com.sun.xml.bind.v2.runtime.BridgeImpl.unmarshal(BridgeImpl.java:120)
at com.sun.xml.bind.api.Bridge.unmarshal(Bridge.java:233)
at com.sun.xml.ws.server.sei.EndpointArgumentsBuilder$DocLit.readRequest(EndpointArgumentsBuilder.java:517)
at com.sun.xml.ws.server.sei.EndpointArgumentsBuilder$Composite.readRequest(EndpointArgumentsBuilder.java:188)
at com.sun.xml.ws.server.sei.EndpointMethodHandler.invoke(EndpointMethodHandler.java:243)
at com.sun.xml.ws.server.sei.SEIInvokerTube.processRequest(SEIInvokerTube.java:93)
at com.sun.xml.ws.api.pipe.Fiber.__doRun(Fiber.java:598)
at com.sun.xml.ws.api.pipe.Fiber._doRun(Fiber.java:557)
at com.sun.xml.ws.api.pipe.Fiber.doRun(Fiber.java:542)
at com.sun.xml.ws.api.pipe.Fiber.runSync(Fiber.java:439)
at com.sun.xml.ws.server.WSEndpointImpl.process(WSEndpointImpl.java:243)
at com.sun.xml.ws.transport.http.HttpAdapter$HttpToolkit.handle(HttpAdapter.java:444)
at com.sun.xml.ws.transport.http.HttpAdapter.handle(HttpAdapter.java:244)
at com.sun.xml.ws.transport.http.servlet.ServletAdapter.handle(ServletAdapter.java:134)
at weblogic.wsee.jaxws.HttpServletAdapter$AuthorizedInvoke.run(HttpServletAdapter.java:272)
at weblogic.wsee.jaxws.HttpServletAdapter.post(HttpServletAdapter.java:185)
at weblogic.wsee.jaxws.JAXWSServlet.doPost(JAXWSServlet.java:180)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
at weblogic.wsee.jaxws.JAXWSServlet.service(JAXWSServlet.java:64)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)
at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125)
at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:292)
at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:175)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3498)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
at weblogic.security.service.SecurityManager.runAs(Unknown Source)
at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2180)
at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2086)
at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1406)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:201)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:173)
采纳答案by jeorfevre
I have, you been adding xerces jarin your classpath ? If not download it from xerces jar linkand add it to your project classpath.
我有，您一直在类路径中添加xerces jar吗？如果没有从xerces jar 链接下载它并将其添加到您的项目类路径。
Give me feedback please. enjoy :)
请给我反馈。请享用 ：）
回答by vinod
This is due to multiple xercesImpl.jar in class path. This jar may be from your application, from JDK and from servlet container. Following changes in POM resolved this issue for me.
这是由于类路径中有多个 xercesImpl.jar。这个 jar 可能来自您的应用程序、JDK 和 servlet 容器。POM 中的以下更改为我解决了这个问题。
<dependency>
<groupId>xerces</groupId>
<artifactId>resolver</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>xerces</groupId>
<artifactId>serializer</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>xerces</groupId>
<artifactId>xercesImpl</artifactId>
<scope>provided</scope>
</dependency>
回答by Alina_Lapina
EXPLANATION:New versions of java have xerces lib in jdk. This lib conflict with apache's xerses lib. Even when it says "no class" it's because there are two of them. SOLUTION:Check if this is true for your project and remove one of them from the dependencies and build the project.
说明：新版本的 java 在 jdk 中有 xerces lib。这个库与 apache 的 xerses 库冲突。即使它说“没有课”也是因为有两个。 解决方案：检查这是否适用于您的项目，并从依赖项中删除其中之一并构建项目。
