[jira] [Assigned] (CXF-7905) JAXBUtils fails to setEscapeHandler due to null escapeHandler

["Freeman Fang (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CXF-7905?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Freeman Fang reassigned CXF-7905:
---------------------------------

    Assignee: Freeman Fang

> 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
>
> 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$0(DataWriterImpl.java:138)
> 	at org.apache.cxf.jaxb.JAXBDataBinding.applyEscapeHandler(JAXBDataBinding.java:271)
> 	at org.apache.cxf.jaxb.io.DataWriterImpl.createMarshaller(DataWriterImpl.java:138)
> 	at org.apache.cxf.jaxb.io.DataWriterImpl.write(DataWriterImpl.java:239)
> 	at 
> {code}
> jaxb MarschallerImpl fails when org.apache.cxf.common.jaxb.JAXBUtils tries to set an EscapeHandler of null.
>  
> +Possible Solution+
> Adding a null check at org.apache.cxf.common.jaxb.JAXBUtils.setEscapeHandler as indicated below. Solves the issue.
> {code:java}
> public static void setEscapeHandler(Marshaller marshaller, Object escapeHandler) { 
>      try { 
>           String postFix = getPostfix(marshaller.getClass()); 
>           if (postFix != null && escapeHandler != null) { 
>              marshaller.setProperty("com.sun.xml" + postFix + ".bind.characterEscapeHandler", escapeHandler); 
>           } 
>      } catch (PropertyException e) { 
>           LOG.log(Level.INFO, "Failed to set MinumEscapeHandler to jaxb marshaller", e); 
>      } 
> }
> {code}
>  
> While a PropertyException seems to be okay for CXF a null escapeHandler Object leads to escapeHandler.getClass().getName() called by jaxb MarshallerImpl just as it was trying to throw a PropertyException.
>  
> +Why is the EscapeHandler null+
> A null EscapeHandler can occur when org.apache.cxf.common.jaxb.createEscapeHandler() actual return delegate ProxyHelper.getProxy() throws an Exception.
> In my case a the following Exception is thrown:
> {code:java}
> Caused by: java.lang.IllegalArgumentException: interface org.apache.cxf.endpoint.Client is not visible from class loader at java.lang.reflect.Proxy$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 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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