Question

我在实例化DocumentBuilderFactory

时遇到下面列出的异常

javax.xml.parsers.DocumentBuilderFactory.newInstance

例外：

java.lang.ClassCastException: org.apache.xerces.jaxp.DocumentBuilderFactoryImpl cannot be cast to javax.xml.parsers.DocumentBuilderFactory
at javax.xml.parsers.DocumentBuilderFactory.newInstance(DocumentBuilderFactory.java:140)
at ***.XmlDocuments.xmlToDocument(XmlDocuments.java:21)
at ***.xml.XmlDocuments.appendEmptyNodeTo(XmlDocuments.java:58)
at ***.SignerProcessor.process(SignerProcessor.java:18)
at org.apache.camel.processor.DelegateSyncProcessor.process(DelegateSyncProcessor.java:63)
at org.apache.camel.management.InstrumentationProcessor.process(InstrumentationProcessor.java:72)
at org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:398)
at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:191)
at org.apache.camel.processor.Pipeline.process(Pipeline.java:118)
at org.apache.camel.processor.Pipeline.process(Pipeline.java:80)
at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:191)
at org.apache.camel.component.jetty.CamelContinuationServlet.service(CamelContinuationServlet.java:151)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:668)
at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:684)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1496)
at org.eclipse.jetty.servlets.MultiPartFilter.doFilter(MultiPartFilter.java:136)
at org.apache.camel.component.jetty.CamelFilterWrapper.doFilter(CamelFilterWrapper.java:44)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1467)
at org.eclipse.jetty.servlets.MultiPartFilter.doFilter(MultiPartFilter.java:136)
at org.apache.camel.component.jetty.CamelFilterWrapper.doFilter(CamelFilterWrapper.java:44)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1467)
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:499)
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1086)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:428)
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1020)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)
at org.eclipse.jetty.server.Server.handle(Server.java:370)
at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:494)
at org.eclipse.jetty.server.AbstractHttpConnection.content(AbstractHttpConnection.java:982)
at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.content(AbstractHttpConnection.java:1043)
at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:865)
at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:240)
at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:82)
at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:667)
at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:52)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:608)
at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:543)
at java.lang.Thread.run(Thread.java:745)

我使用XML数字签名和JBoss Fuse ESB 6.1上的JDK7进行xml解析，将我的模块部署为FAB（Fuse Application Bundle），在pom.xml中我没有明确的org.apache.xerces.jaxp依赖。另外在我的pom.xml中，我使用以下依赖项：

    <dependency>
        <groupId>org.apache.camel</groupId>
        <artifactId>camel-core</artifactId>
        <version>2.12.0.redhat-610379</version>
        <scope>provided</scope>
    </dependency>
    <dependency>
        <groupId>org.apache.camel</groupId>
        <artifactId>camel-jetty</artifactId>
        <version>2.12.0.redhat-610379</version>
        <scope>provided</scope>
    </dependency>
    <dependency>
        <groupId>org.apache.camel</groupId>
        <artifactId>camel-test</artifactId>
        <version>2.12.0</version>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>javax.xml</groupId>
        <artifactId>jaxp-api</artifactId>
        <version>1.4.2</version>
    </dependency>

当我从pom.xml中删除依赖关系javax.xml-jaxp-api时遇到以下异常：

java.lang.ClassCastException: org.jcp.xml.dsig.internal.dom.DOMXMLSignatureFactory cannot be cast to javax.xml.crypto.dsig.XMLSignatureFactory...

我如何解决这个问题？谢谢！

Answer 1

这似乎是一个简单的铸造问题，即

org.apache.xerces.jaxp.DocumentBuilderFactoryImpl to javax.xml.parsers.DocumentBuilderFactory.

你可以在哪里分享你的骆驼代码/ bean吗？

Jboss Fuse ESB java.lang.ClassCastException

1 个答案: