Failed Parsing SOAP Fault XML String in Multi-line (Pretty-Print) Format

[nongpuchuay]

Hi,

I am writing a client application running on JDK 21.
When it gets an error response containing a SOAP Fault XML string from the server, there are no issues if the XML string is in single-line format.
But when the XML string is in multi-line (pretty-print) format, there is an exception thrown.

An example of XML string causing the error is as follows.

<se:Envelope xmlns:ns="http://ns.ukmail.com/msg/header/1.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:man="http://ukmail.business-post.com/mailmark/manifest" xmlns:se="http://www.w3.org/2003/05/soap-envelope">
  <se:Header>
    <ns:ukmail>
      <ns:Timestamp>2025-01-17T01:47:41.305Z</ns:Timestamp>
      <ns:Application>Inter</ns:Application>
      <ns:MessageType>item_manifest-1</ns:MessageType>
      <ns:Version>1.0</ns:Version>
      <ns:MessageId>71fb4bb7-d284-4d81-b6af-53c5f07d4706</ns:MessageId>
    </ns:ukmail>
  </se:Header>
  
  <se:Body>
    <se:Fault>
      <se:Code>
        <se:Value>ERR007</se:Value>
      </se:Code>
      <se:Reason>
        <se:Text xml:lang="">Data Integrity Error</se:Text>
      </se:Reason>
      <se:Role>http://ukmail.business-post.com/mailmark/manifest</se:Role>
      <se:Detail>Item ID has already been used on a previous day</se:Detail>
    </se:Fault>
  </se:Body>
</se:Envelope>

And here is the exception stack trace.

Caused by: java.lang.IllegalStateException: reader must be on a START_ELEMENT event, not a 4 event
        at com.sun.xml.internal.bind.v2.runtime.unmarshaller.UnmarshallerImpl.unmarshal0(UnmarshallerImpl.java:393)
        at com.sun.xml.internal.bind.v2.runtime.unmarshaller.UnmarshallerImpl.unmarshal(UnmarshallerImpl.java:371)
        at com.sun.xml.internal.ws.message.stream.StreamMessage.readPayloadAsJAXB(StreamMessage.java:313)
        at com.sun.xml.internal.ws.api.message.MessageWrapper.readPayloadAsJAXB(MessageWrapper.java:171)
        at com.sun.xml.internal.ws.fault.SOAPFaultBuilder.create(SOAPFaultBuilder.java:540)
        at com.sun.xml.internal.ws.client.sei.StubHandler.readResponse(StubHandler.java:237)
        at com.sun.xml.internal.ws.db.DatabindingImpl.deserializeResponse(DatabindingImpl.java:189)
        at com.sun.xml.internal.ws.db.DatabindingImpl.deserializeResponse(DatabindingImpl.java:276)
        at com.sun.xml.internal.ws.client.sei.SyncMethodHandler.invoke(SyncMethodHandler.java:104)
        at com.sun.xml.internal.ws.client.sei.SyncMethodHandler.invoke(SyncMethodHandler.java:77)
        at com.sun.xml.internal.ws.client.sei.SEIStub.invoke(SEIStub.java:147)
        at com.sun.proxy.$Proxy37.itemManifest1(Unknown Source)

The related dependencies in the pom.xml file are as follows.

<dependency>
    <groupId>com.sun.xml.ws</groupId>
    <artifactId>jaxws-rt</artifactId>
    <version>4.0.3</version>
    <scope>runtime</scope>
</dependency>
<dependency>
    <groupId>jakarta.xml.ws</groupId>
    <artifactId>jakarta.xml.ws-api</artifactId>
    <version>4.0.2</version>
</dependency>

Thank you for your help.