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https://issues.apache.org/jira/browse/CXF-7905?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Freeman Fang resolved CXF-7905.
-------------------------------
Resolution: Fixed
> JAXBUtils fails to setEscapeHandler due to null escapeHandler
> -------------------------------------------------------------
>
> Key: CXF-7905
> URL: https://issues.apache.org/jira/browse/CXF-7905
> Project: CXF
> Issue Type: Bug
> Components: Core
> Affects Versions: 3.2
> Reporter: Thorsten Hersam
> Assignee: Freeman Fang
> Priority: Major
> Fix For: 3.3.0, 3.2.8
>
>
> I am having the following issue with a SOAP request of my software deployed
> in Wildfly 13.0.0.Final. Wildfly makes use of CXF core in version
> 3.2.4-jbossorg-1. Of this version I was unable to find sources but my issue
> persists with any or the 3.2 versions of CXF.
> The same software was previously deployed without any issues on Wildfly
> 10.0.1.Final which uses CXF 3.1.6.
> Upon authentification at a SOAP web service I now receive the following
> exception:
>
> {code:java}
> 12:26:29,314 WARNING [org.apache.cxf.phase.PhaseInterceptorChain] (default
> task-1) Interceptor for
> {http://endpoint.soap.webservice.logicaldoc.com/}SoapAuthServiceService#{http://ws.logicaldoc.com}login
> has thrown exception, unwinding now: java.lang.NullPointerException
> at
> com.sun.xml.bind.v2.runtime.MarshallerImpl.setProperty(MarshallerImpl.java:518)
> at
> org.apache.cxf.common.jaxb.JAXBUtils.setEscapeHandler(JAXBUtils.java:1567)
> at
> org.apache.cxf.jaxb.io.DataWriterImpl.lambda$createMarshaller$0(DataWriterImpl.java:138)
> at
> org.apache.cxf.jaxb.JAXBDataBinding.applyEscapeHandler(JAXBDataBinding.java:271)
> at
> org.apache.cxf.jaxb.io.DataWriterImpl.createMarshaller(DataWriterImpl.java:138)
> at org.apache.cxf.jaxb.io.DataWriterImpl.write(DataWriterImpl.java:239)
> at
> {code}
> jaxb MarschallerImpl fails when org.apache.cxf.common.jaxb.JAXBUtils tries to
> set an EscapeHandler of null.
>
> +Possible Solution+
> Adding a null check at org.apache.cxf.common.jaxb.JAXBUtils.setEscapeHandler
> as indicated below, solves the issue.
> {code:java}
> public static void setEscapeHandler(Marshaller marshaller, Object
> escapeHandler) {
> try {
> String postFix = getPostfix(marshaller.getClass());
> if (postFix != null && escapeHandler != null) {
> marshaller.setProperty("com.sun.xml" + postFix +
> ".bind.characterEscapeHandler", escapeHandler);
> }
> } catch (PropertyException e) {
> LOG.log(Level.INFO, "Failed to set MinumEscapeHandler to jaxb
> marshaller", e);
> }
> }
> {code}
>
> While a PropertyException seems to be okay for CXF a null escapeHandler
> Object leads to escapeHandler.getClass().getName() called by jaxb
> MarshallerImpl just as it was trying to throw a PropertyException.
>
> +Why is the EscapeHandler null+
> A null EscapeHandler can occur when
> org.apache.cxf.common.jaxb.createEscapeHandler()'s actual return delegate
> ProxyHelper.getProxy() throws an Exception.
> In my case a the following Exception is thrown:
> {code:java}
> Caused by: java.lang.IllegalArgumentException: interface
> org.apache.cxf.endpoint.Client is not visible from class loader at
> java.lang.reflect.Proxy$ProxyClassFactory.apply(Proxy.java:581) at
> java.lang.reflect.Proxy$ProxyClassFactory.apply(Proxy.java:557) at
> java.lang.reflect.WeakCache$Factory.get(WeakCache.java:230) at
> java.lang.reflect.WeakCache.get(WeakCache.java:127) at
> java.lang.reflect.Proxy.getProxyClass0(Proxy.java:419) at
> java.lang.reflect.Proxy.newProxyInstance(Proxy.java:719) at
> org.apache.cxf.common.util.ProxyHelper.getProxyInternal(ProxyHelper.java:49)
> at org.apache.cxf.common.util.ProxyHelper.getProxy(ProxyHelper.java:126) at
> org.apache.cxf.frontend.ClientProxyFactoryBean.create(ClientProxyFactoryBean.java:176)
> at
> org.apache.cxf.jaxws.JaxWsProxyFactoryBean.create(JaxWsProxyFactoryBean.java:142)
> at org.apache.cxf.jaxws.ServiceImpl.createPort(ServiceImpl.java:493) at
> org.jboss.wsf.stack.cxf.client.ProviderImpl$JBossWSServiceImpl.createPort(ProviderImpl.java:580)
> at org.apache.cxf.jaxws.ServiceImpl.getPort(ServiceImpl.java:359) at
> org.apache.cxf.jaxws.ServiceImpl.getPort(ServiceImpl.java:350) at
> javax.xml.ws.Service.getPort(Service.java:99) at
> com.logicaldoc.webservice.soap.endpoint.SoapAuthServiceService.getSoapAuthServicePort(SoapAuthServiceService.java:68)
> {code}
>
> org.apache.cxf.endpoint.Client does not seem to be visible of the combined
> classloader constructed in ProxyHelper.getProxyInternal().
> I am not utterly familiar with ClassLoaders but I find it strange that
> org.apache.cxf classes - which are calling a ProxyHelper which constructs a
> ClassLoader for "com.sun.xml.bind.marshaller.CharacterEscapeHandler" - fail
> because another org.apache.cxf interface is not visible.
>
>
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