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POJAXB unmarshal validation throws cvc-elt.1: Cannot find the declaration of element error
 

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    <p>I'm kind of new to JAXB and validation, and have spent several hours trying to figure out this problem to no avail. I've created a simple JAXB unmarshaller sample to parse an XML file. I have created an appropriate XSD file as well, but the validator keeps complaining that it is unable to find the declaration of an element.</p> <p>I think it may be related to namespace issues, but I've tried everything I can think of and still can't seem to resolve the error. As far as I can tell, my XSD and XML are proper, so it may have to do with the way I am instantiating the unmarshaller, but I can't seem to find the problem anywhere.</p> <p>The error/exception I keep getting is:</p> <pre><code>Caused by: org.xml.sax.SAXParseException: cvc-elt.1: Cannot find the declaration of element 'calculateBorrowingDataResponse'. at org.apache.xerces.util.ErrorHandlerWrapper.createSAXParseException(Unknown Source) at org.apache.xerces.util.ErrorHandlerWrapper.error(Unknown Source) at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source) at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source) at org.apache.xerces.impl.xs.XMLSchemaValidator.handleStartElement(Unknown Source) at org.apache.xerces.impl.xs.XMLSchemaValidator.startElement(Unknown Source) at org.apache.xerces.jaxp.validation.ValidatorHandlerImpl.startElement(Unknown Source) at com.sun.xml.internal.bind.v2.runtime.unmarshaller.ValidatingUnmarshaller.startElement(ValidatingUnmarshaller.java:85) at com.sun.xml.internal.bind.v2.runtime.unmarshaller.InterningXmlVisitor.startElement(InterningXmlVisitor.java:47) at com.sun.xml.internal.bind.v2.runtime.unmarshaller.SAXConnector.startElement(SAXConnector.java:113) at com.sun.xml.internal.bind.unmarshaller.DOMScanner.visit(DOMScanner.java:236) at com.sun.xml.internal.bind.unmarshaller.DOMScanner.scan(DOMScanner.java:119) at com.sun.xml.internal.bind.unmarshaller.DOMScanner.scan(DOMScanner.java:102) at com.sun.xml.internal.bind.v2.runtime.unmarshaller.UnmarshallerImpl.unmarshal0(UnmarshallerImpl.java:299) ... 2 more </code></pre> <p>Here are the source files that are causing the error.</p> <p>Java Code:</p> <pre><code>// We need a Document InputStream is = UnmarshalTest.class.getClassLoader().getResourceAsStream("calculateBorrowingDataResponse.xml"); DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance(); DocumentBuilder db = dbf.newDocumentBuilder(); Node node = db.parse(is); // Creating an unmarshaller Unmarshaller u = JAXBContext.newInstance(CalculateBorrowingDataResponseType.class).createUnmarshaller(); // Setting the Validation Schema schema; SchemaFactory schemaFactory = SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI); schema = schemaFactory.newSchema(new File("src/main/webapp/WEB-INF/wsdl/CalculateBorrowingDataResponse.xsd")); u.setSchema(schema); u.unmarshal(node, CalculateBorrowingDataResponseType.class); </code></pre> <p>CalculateBorrowingDataResponse.xsd:</p> <pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt; &lt;xsd:schema version="1.1" attributeFormDefault="unqualified" elementFormDefault="qualified" targetNamespace="http://www.domain.com/ClientServices/LendingSimulation/CalculateBorrowingDataResponse" xmlns:lssSt="http://www.domain.com/ClientServices/LendingSimulation/CalculateBorrowingDataResponse" xmlns:cbdRes="http://www.domain.com/ClientServices/LendingSimulation/CalculateBorrowingDataResponse" xmlns:xsd="http://www.w3.org/2001/XMLSchema"&gt; &lt;!-- CalculateBorrowingData --&gt; &lt;xsd:complexType name="CalculateBorrowingDataResponseType"&gt; &lt;xsd:sequence&gt; &lt;xsd:element name="loanAgmt" type="cbdRes:LoanAgreementType" minOccurs="1" maxOccurs="1" /&gt; &lt;/xsd:sequence&gt; &lt;/xsd:complexType&gt; &lt;xsd:complexType name="LoanAgreementType"&gt; &lt;xsd:sequence&gt; &lt;xsd:element name="borrowingBasedPmtAmt" type="lssSt:borrowingBasedPmtAmt" minOccurs="0" maxOccurs="1" /&gt; &lt;xsd:element name="maxPmtAmt" type="lssSt:maxPmtAmt" minOccurs="0" maxOccurs="1" /&gt; &lt;xsd:element name="borrowingCapacityMin" type="lssSt:borrowingCapacityMin" minOccurs="0" maxOccurs="1" /&gt; &lt;xsd:element name="borrowingCapacityMax" type="lssSt:borrowingCapacityMax" minOccurs="0" maxOccurs="1" /&gt; &lt;xsd:element name="propertyValueMinAmt" type="lssSt:propertyValueMinAmt" minOccurs="0" maxOccurs="1" /&gt; &lt;xsd:element name="propertyValueMaxAmt" type="lssSt:propertyValueMaxAmt" minOccurs="0" maxOccurs="1" /&gt; &lt;/xsd:sequence&gt; &lt;/xsd:complexType&gt; &lt;xsd:element name="calculateBorrowingDataResponse" type="cbdRes:CalculateBorrowingDataResponseType"/&gt; &lt;xsd:simpleType name="borrowingBasedPmtAmt"&gt; &lt;xsd:restriction base="xsd:decimal" &gt; &lt;xsd:totalDigits value="19" /&gt; &lt;xsd:fractionDigits value="4" /&gt; &lt;/xsd:restriction&gt; &lt;/xsd:simpleType&gt; &lt;xsd:simpleType name="maxPmtAmt"&gt; &lt;xsd:restriction base="xsd:decimal" &gt; &lt;xsd:totalDigits value="19" /&gt; &lt;xsd:fractionDigits value="4" /&gt; &lt;/xsd:restriction&gt; &lt;/xsd:simpleType&gt; &lt;xsd:simpleType name="borrowingCapacityMin"&gt; &lt;xsd:restriction base="xsd:decimal" &gt; &lt;xsd:totalDigits value="19" /&gt; &lt;xsd:fractionDigits value="4" /&gt; &lt;/xsd:restriction&gt; &lt;/xsd:simpleType&gt; &lt;xsd:simpleType name="borrowingCapacityMax"&gt; &lt;xsd:restriction base="xsd:decimal" &gt; &lt;xsd:totalDigits value="19" /&gt; &lt;xsd:fractionDigits value="4" /&gt; &lt;/xsd:restriction&gt; &lt;/xsd:simpleType&gt; &lt;xsd:simpleType name="propertyValueMinAmt"&gt; &lt;xsd:restriction base="xsd:decimal" &gt; &lt;xsd:totalDigits value="19" /&gt; &lt;xsd:fractionDigits value="4" /&gt; &lt;/xsd:restriction&gt; &lt;/xsd:simpleType&gt; &lt;xsd:simpleType name="propertyValueMaxAmt"&gt; &lt;xsd:restriction base="xsd:decimal" &gt; &lt;xsd:totalDigits value="19" /&gt; &lt;xsd:fractionDigits value="4" /&gt; &lt;/xsd:restriction&gt; &lt;/xsd:simpleType&gt; &lt;/xsd:schema&gt; </code></pre> <p>calculateBorrowingDataResponse.xml</p> <pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt; &lt;calculateBorrowingDataResponse xmlns="http://www.domain.com/ClientServices/LendingSimulation/CalculateBorrowingDataResponse" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ns2="http://www.domain.com/ClientServices/LendingSimulation/V1.1"&gt; &lt;loanAgmt&gt; &lt;borrowingBasedPmtAmt&gt;1231231&lt;/borrowingBasedPmtAmt&gt; &lt;maxPmtAmt&gt;987654321&lt;/maxPmtAmt&gt; &lt;borrowingCapacityMax&gt;99999&lt;/borrowingCapacityMax&gt; &lt;/loanAgmt&gt; &lt;/calculateBorrowingDataResponse&gt; </code></pre> <p>I tried both with and without the last element definition in the XSD (ie: xsd:element name="calculateBorrowingDataResponse" ... ) but neither work. </p> <p>I'm running out of ideas of different things to try. Any suggestions or recommendations would be greatly appreciated!</p>
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    1. CODid you create your JAXB classes by hand or with XJC? Also, what is *SimpleType.xsd* that you're referencing? Without these information it's hard run a quick test.
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    2. COYes - I generated the classes with XJC. I actually tried both with XJC and with the eclipse plugin (using jaxb-2.1.9-osgi from maven central as my jaxb implementation in my pom). I get the same error both ways. I have edited my question above and replaced the original XSD schema with a new version that includes the relevant types from SimpleType.xsd so that there is only one schema file and no longer any dependence on SimpleType.xsd. Just for clarity, however, I left the original name space identifier.
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    3. COI've also edited my post to add the definition for my calculateBorrowingDataResponse.xml sample data.
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