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https://issues.apache.org/jira/browse/CXF-9037?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Andriy Redko reassigned CXF-9037:
---------------------------------
Assignee: Andriy Redko
> NPE when using com.ctc.wstx.returnNullForDefaultNamespace=true
> --------------------------------------------------------------
>
> Key: CXF-9037
> URL: https://issues.apache.org/jira/browse/CXF-9037
> Project: CXF
> Issue Type: Bug
> Components: Core
> Affects Versions: 3.5.8, 3.6.3, 4.0.4
> Reporter: Gordon Freeman
> Assignee: Andriy Redko
> Priority: Major
> Fix For: 3.5.10, 3.6.5, 4.0.6
>
> Attachments: xmlTest.zip
>
>
> I am using custom out interceptor, which make xsl transformation to serialize
> some elements as CDATA, my code was inspired by
> org.apache.cxf.feature.transform.XSLTOutInterceptor.
> But if I set property com.ctc.wstx.returnNullForDefaultNamespace=true, the
> I've got an NPE. This property is required to fix some other issues with xml
> generation (without it I've got empty namespaces xmlns="" in some cases).
> The code bellow is the minimum example of NPE, using
> org.apache.cxf.staxutils.StaxSource.
>
> {code:java}
> Exception in thread "main" java.lang.NullPointerException: Cannot invoke
> "String.equals(Object)" because "prefix" is null
> at
> net.sf.saxon.event.ReceivingContentHandler.startPrefixMapping(ReceivingContentHandler.java:300)
>
> at org.apache.cxf.staxutils.StaxSource.parse(StaxSource.java:145)
> at org.apache.cxf.staxutils.StaxSource.parse(StaxSource.java:259)
> at
> net.sf.saxon.resource.ActiveSAXSource.deliver(ActiveSAXSource.java:192)
> at net.sf.saxon.event.Sender.send(Sender.java:104)
> at
> net.sf.saxon.jaxp.IdentityTransformer.transform(IdentityTransformer.java:364)
> {code}
> {code:java}
> package test;
> import com.ctc.wstx.stax.WstxInputFactory;
> import org.apache.cxf.staxutils.StaxSource;
> import javax.xml.transform.OutputKeys;
> import javax.xml.transform.Source;
> import javax.xml.transform.Transformer;
> import javax.xml.transform.TransformerFactory;
> import javax.xml.transform.stax.StAXSource;
> import javax.xml.transform.stream.StreamResult;
> import java.io.ByteArrayInputStream;
> import java.io.StringWriter;
> import java.nio.charset.StandardCharsets;
> public class NpeTest
> {
> public static void main(String[] args) throws Exception
> {
> String bodyXml = "<?xml version=\"1.0\"?>\n" +
> "<soap:Envelope
> xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\";>\n" +
> " <soap:Body>\n" +
> " <testReq xmlns=\"http://test.com/test\";>\n" +
> " <reqBody><<<<<</reqBody>\n" +
> " </testReq>\n" +
> " </soap:Body>\n" +
> "</soap:Envelope>\n";
> System.setProperty("com.ctc.wstx.returnNullForDefaultNamespace",
> "true");
> WstxInputFactory factory = new WstxInputFactory();
> Source beforeSource = new
> StaxSource(factory.createXMLStreamReader(new
> ByteArrayInputStream(bodyXml.getBytes(StandardCharsets.UTF_8))));
> // Source beforeSource = new
> StAXSource(factory.createXMLStreamReader(new
> ByteArrayInputStream(bodyXml.getBytes(StandardCharsets.UTF_8))));
> System.out.println(save(beforeSource));
> }
> public static String save(Source beforeSource) throws Exception
> {
> StringWriter writer = new StringWriter();
> StreamResult result = new StreamResult(writer);
> TransformerFactory tf = TransformerFactory.newInstance();
> Transformer transformer = tf.newTransformer();
> transformer.setOutputProperty(OutputKeys.INDENT, "yes");
> transformer.setOutputProperty(OutputKeys.STANDALONE, "yes");
> transformer.setOutputProperty(OutputKeys.CDATA_SECTION_ELEMENTS,
> "Q{http://test.com/test}reqBody";);
>
> transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount";,
> "4");
> transformer.transform(beforeSource, result);
> return writer.toString();
> }
> }
> {code}
> The stacktrace from my project is:
> {code:java}
> java.lang.NullPointerException
> at
> net.sf.saxon.event.ReceivingContentHandler.startPrefixMapping(ReceivingContentHandler.java:301)
> at org.apache.cxf.staxutils.StaxSource.parse(StaxSource.java:145)
> at org.apache.cxf.staxutils.StaxSource.parse(StaxSource.java:259)
> at
> net.sf.saxon.resource.ActiveSAXSource.deliver(ActiveSAXSource.java:190)
> at net.sf.saxon.event.Sender.send(Sender.java:105)
> at
> net.sf.saxon.jaxp.IdentityTransformer.transform(IdentityTransformer.java:364)
> at
> org.apache.cxf.feature.transform.XSLTUtils.transform(XSLTUtils.java:57)
> at
> org.apache.cxf.feature.transform.XSLTOutInterceptor$XSLTCachedOutputStreamCallback.onClose(XSLTOutInterceptor.java:165)
> at
> org.apache.cxf.io.CachedOutputStream.close(CachedOutputStream.java:219)
> at
> org.apache.cxf.transport.AbstractConduit.close(AbstractConduit.java:56)
> at
> org.apache.cxf.transport.http.HTTPConduit.close(HTTPConduit.java:688)
> at
> org.apache.cxf.interceptor.MessageSenderInterceptor$MessageSenderEndingInterceptor.handleMessage(MessageSenderInterceptor.java:63)
> at
> org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:307)
> at org.apache.cxf.endpoint.ClientImpl.doInvoke(ClientImpl.java:530)
> at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:441)
> at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:356)
> at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:314)
> at org.apache.cxf.frontend.ClientProxy.invokeSync(ClientProxy.java:96)
> at
> org.apache.cxf.jaxws.JaxWsClientProxy.invoke(JaxWsClientProxy.java:140)
> {code}
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