javax.xml.bind.UnmarshalException: unexpected element (uri:"", local:""). Expected elements are

java xml jaxb xjc

63,092

Solution 1

Below is some information that should help:

XML

Below is a portion of your XML. One thing to note is the xmlns attribute. This is a special attribute and refers to namespace qualification within the XML document.

<lookupInstances xmlns='http://www.pqr.com/awd/rest/v1' name='LKIMGR'>
    <lookupParameters/>
</lookupInstances>

Below is another version of the XML with the same namespace qualification:

<abc:lookupInstances xmlns:abc='http://www.pqr.com/awd/rest/v1' name='LKIMGR'>
    <abc:lookupParameters/>
</abc:lookupInstances>

When you remove the xmlns attribute the namespace qualification is removed. The document below is not equivalent to the two above.

<lookupInstances name='LKIMGR'>
    <lookupParameters/>
</lookupInstances>

Your Error

javax.xml.bind.UnmarshalException: unexpected element (uri:"http://www.pqr.com/awd/rest/v1", local:"lookupInstances"). Expected elements are <{}lookupInstances>

This error indicates that you have not mapped the namespace qualification correctly.

Mapping the Namesapce Qualification in JAXB

Namespace qualification in JAXB is done using the package level @XmlSchema annotation. Package level annotations go in package-info.java. Below is the complete source for this class. If you already have a package-info.java source file ensure it is being compiled and packaged with the rest of your classes.

@XmlSchema( 
    namespace = "http://www.pqr.com/awd/rest/v1", 
    elementFormDefault = XmlNsForm.QUALIFIED) 
package your_package;

import javax.xml.bind.annotation.XmlNsForm;
import javax.xml.bind.annotation.XmlSchema;

XML Schema

If you are generating your model from an XML Schema make sure this namespace qualification is properly define there. It will look like:

<?xml version="1.0" encoding="UTF-8"?>
<xs:schema 
    xmlns:xs="http://www.w3.org/2001/XMLSchema" 
    targetNamespace="http://www.pqr.com/awd/rest/v1" 
    xmlns="http://www.pqr.com/awd/rest/v1" 
    elementFormDefault="qualified">
</xs:schema>

Solution 2

Change

@XmlRootElement(name = "lookupInstances")

@XmlRootElement( namespace = "http://www.pqr.com/awd/rest/v1", name = "lookupInstances")

Solution 3

It seems that the class created by JAXB does not contain the namespace information:

@XmlType(name = "", propOrder = {
    "lookupParameters"
})

I suspect that it causes this error, simply because it expects no namespace:

javax.xml.bind.UnmarshalException: unexpected element (uri:"http://www.pqr.com/awd/rest/v1", local:"lookupInstances"). Expected elements are <{}lookupInstances>

I am not sure why the generated class lacks this information, but I would start with adding it manually to verify that this is the problem:

@XmlType(name = "", namespace= "http://www.pqr.com/awd/rest/v1", propOrder = {
    "lookupParameters"
})

Solution 4

I have changed the jaxb class by changing the xsd and it is working now.

//
// This file was generated by the JavaTM Architecture for XML Binding(JAXB) Reference Implementation, v2.2.4-2 
// See <a href="http://java.sun.com/xml/jaxb">http://java.sun.com/xml/jaxb</a> 
// Any modifications to this file will be lost upon recompilation of the source schema. 
// Generated on: 2015.01.13 at 03:49:52 PM IST 
//


package com.dsths.ga.awd.main;

import java.util.ArrayList;
import java.util.List;
import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlAttribute;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;
import javax.xml.bind.annotation.XmlType;
import javax.xml.bind.annotation.XmlValue;


/**
 * <p>Java class for anonymous complex type.
 * 
 * <p>The following schema fragment specifies the expected content contained within this class.
 * 
 * <pre>
 * &lt;complexType>
 *   &lt;complexContent>
 *     &lt;restriction base="{http://www.w3.org/2001/XMLSchema}anyType">
 *       &lt;sequence>
 *         &lt;element name="lookupParameters">
 *           &lt;complexType>
 *             &lt;complexContent>
 *               &lt;restriction base="{http://www.w3.org/2001/XMLSchema}anyType">
 *                 &lt;sequence>
 *                   &lt;element name="lookupParameter" maxOccurs="unbounded" minOccurs="0">
 *                     &lt;complexType>
 *                       &lt;simpleContent>
 *                         &lt;extension base="&lt;http://www.w3.org/2001/XMLSchema>string">
 *                           &lt;attribute name="name" type="{http://www.w3.org/2001/XMLSchema}string" />
 *                         &lt;/extension>
 *                       &lt;/simpleContent>
 *                     &lt;/complexType>
 *                   &lt;/element>
 *                 &lt;/sequence>
 *               &lt;/restriction>
 *             &lt;/complexContent>
 *           &lt;/complexType>
 *         &lt;/element>
 *       &lt;/sequence>
 *       &lt;attribute name="name" type="{http://www.w3.org/2001/XMLSchema}string" />
 *     &lt;/restriction>
 *   &lt;/complexContent>
 * &lt;/complexType>
 * </pre>
 * 
 * 
 */
@XmlAccessorType(XmlAccessType.FIELD)
@XmlType(name = "", propOrder = {
    "lookupParameters"
})
@XmlRootElement(name = "lookupInstances")
public class LookupInstances {

    @XmlElement(required = true)
    protected LookupInstances.LookupParameters lookupParameters;
    @XmlAttribute(name = "name")
    protected String name;

    /**
     * Gets the value of the lookupParameters property.
     * 
     * @return
     *     possible object is
     *     {@link LookupInstances.LookupParameters }
     *     
     */
    public LookupInstances.LookupParameters getLookupParameters() {
        return lookupParameters;
    }

    /**
     * Sets the value of the lookupParameters property.
     * 
     * @param value
     *     allowed object is
     *     {@link LookupInstances.LookupParameters }
     *     
     */
    public void setLookupParameters(LookupInstances.LookupParameters value) {
        this.lookupParameters = value;
    }

    /**
     * Gets the value of the name property.
     * 
     * @return
     *     possible object is
     *     {@link String }
     *     
     */
    public String getName() {
        return name;
    }

    /**
     * Sets the value of the name property.
     * 
     * @param value
     *     allowed object is
     *     {@link String }
     *     
     */
    public void setName(String value) {
        this.name = value;
    }


    /**
     * <p>Java class for anonymous complex type.
     * 
     * <p>The following schema fragment specifies the expected content contained within this class.
     * 
     * <pre>
     * &lt;complexType>
     *   &lt;complexContent>
     *     &lt;restriction base="{http://www.w3.org/2001/XMLSchema}anyType">
     *       &lt;sequence>
     *         &lt;element name="lookupParameter" maxOccurs="unbounded" minOccurs="0">
     *           &lt;complexType>
     *             &lt;simpleContent>
     *               &lt;extension base="&lt;http://www.w3.org/2001/XMLSchema>string">
     *                 &lt;attribute name="name" type="{http://www.w3.org/2001/XMLSchema}string" />
     *               &lt;/extension>
     *             &lt;/simpleContent>
     *           &lt;/complexType>
     *         &lt;/element>
     *       &lt;/sequence>
     *     &lt;/restriction>
     *   &lt;/complexContent>
     * &lt;/complexType>
     * </pre>
     * 
     * 
     */
    @XmlAccessorType(XmlAccessType.FIELD)
    @XmlType(name = "", propOrder = {
        "lookupParameter"
    })
    public static class LookupParameters {

        protected List<LookupInstances.LookupParameters.LookupParameter> lookupParameter;

        /**
         * Gets the value of the lookupParameter property.
         * 
         * <p>
         * This accessor method returns a reference to the live list,
         * not a snapshot. Therefore any modification you make to the
         * returned list will be present inside the JAXB object.
         * This is why there is not a <CODE>set</CODE> method for the lookupParameter property.
         * 
         * <p>
         * For example, to add a new item, do as follows:
         * <pre>
         *    getLookupParameter().add(newItem);
         * </pre>
         * 
         * 
         * <p>
         * Objects of the following type(s) are allowed in the list
         * {@link LookupInstances.LookupParameters.LookupParameter }
         * 
         * 
         */
        public List<LookupInstances.LookupParameters.LookupParameter> getLookupParameter() {
            if (lookupParameter == null) {
                lookupParameter = new ArrayList<LookupInstances.LookupParameters.LookupParameter>();
            }
            return this.lookupParameter;
        }


        /**
         * <p>Java class for anonymous complex type.
         * 
         * <p>The following schema fragment specifies the expected content contained within this class.
         * 
         * <pre>
         * &lt;complexType>
         *   &lt;simpleContent>
         *     &lt;extension base="&lt;http://www.w3.org/2001/XMLSchema>string">
         *       &lt;attribute name="name" type="{http://www.w3.org/2001/XMLSchema}string" />
         *     &lt;/extension>
         *   &lt;/simpleContent>
         * &lt;/complexType>
         * </pre>
         * 
         * 
         */
        @XmlAccessorType(XmlAccessType.FIELD)
        @XmlType(name = "", propOrder = {
            "value"
        })
        public static class LookupParameter {

            @XmlValue
            protected String value;
            @XmlAttribute(name = "name")
            protected String name;

            /**
             * Gets the value of the value property.
             * 
             * @return
             *     possible object is
             *     {@link String }
             *     
             */
            public String getValue() {
                return value;
            }

            /**
             * Sets the value of the value property.
             * 
             * @param value
             *     allowed object is
             *     {@link String }
             *     
             */
            public void setValue(String value) {
                this.value = value;
            }

            /**
             * Gets the value of the name property.
             * 
             * @return
             *     possible object is
             *     {@link String }
             *     
             */
            public String getName() {
                return name;
            }

            /**
             * Sets the value of the name property.
             * 
             * @param value
             *     allowed object is
             *     {@link String }
             *     
             */
            public void setName(String value) {
                this.name = value;
            }

        }

    }

}

View more solutions

63,092

Author by

Rana

Updated on July 05, 2022

Comments

Rana almost 2 years

You can find a lot of questions like this in this site but none has solved my issue.

This is my XML :

<?xml version='1.0' encoding='UTF-8' standalone='yes'?>
<lookupInstances xmlns='http://www.pqr.com/awd/rest/v1' name='LKIMGR'>
<lookupParameters>
<lookupParameter name='businessArea'>PQAA</lookupParameter>
<lookupParameter name='MEMBERNUMBER'>ANTHONY1900</lookupParameter>
</lookupParameters>
</lookupInstances>

I have created the Jaxb class using the XJC compiler and the file created is as :

//
// This file was generated by the JavaTM Architecture for XML Binding(JAXB) Reference Implementation, vJAXB 2.1.10 in JDK 6 
// See <a href="http://java.sun.com/xml/jaxb">http://java.sun.com/xml/jaxb</a> 
// Any modifications to this file will be lost upon recompilation of the source schema. 
// Generated on: 2015.01.13 at 12:15:41 PM IST 
//


package com.dsths.ga.awd.main;

import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlAttribute;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;
import javax.xml.bind.annotation.XmlType;


/**
 * <p>Java class for anonymous complex type.
 * 
 * <p>The following schema fragment specifies the expected content contained within this class.
 * 
 * <pre>
 * &lt;complexType>
 *   &lt;complexContent>
 *     &lt;restriction base="{http://www.w3.org/2001/XMLSchema}anyType">
 *       &lt;sequence>
 *         &lt;element name="lookupParameters">
 *           &lt;complexType>
 *             &lt;complexContent>
 *               &lt;restriction base="{http://www.w3.org/2001/XMLSchema}anyType">
 *                 &lt;sequence>
 *                   &lt;element name="lookupParameter">
 *                     &lt;complexType>
 *                       &lt;complexContent>
 *                         &lt;restriction base="{http://www.w3.org/2001/XMLSchema}anyType">
 *                           &lt;attribute name="name" type="{http://www.w3.org/2001/XMLSchema}string" />
 *                         &lt;/restriction>
 *                       &lt;/complexContent>
 *                     &lt;/complexType>
 *                   &lt;/element>
 *                 &lt;/sequence>
 *               &lt;/restriction>
 *             &lt;/complexContent>
 *           &lt;/complexType>
 *         &lt;/element>
 *       &lt;/sequence>
 *       &lt;attribute name="name" type="{http://www.w3.org/2001/XMLSchema}string" />
 *     &lt;/restriction>
 *   &lt;/complexContent>
 * &lt;/complexType>
 * </pre>
 * 
 * 
 */
@XmlAccessorType(XmlAccessType.FIELD)
@XmlType(name = "", propOrder = {
    "lookupParameters"
})
@XmlRootElement(name = "lookupInstances")
public class LookupInstances {

    @XmlElement(required = true)
    protected LookupInstances.LookupParameters lookupParameters;
    @XmlAttribute
    protected String name;

    /**
     * Gets the value of the lookupParameters property.
     * 
     * @return
     *     possible object is
     *     {@link LookupInstances.LookupParameters }
     *     
     */
    public LookupInstances.LookupParameters getLookupParameters() {
        return lookupParameters;
    }

    /**
     * Sets the value of the lookupParameters property.
     * 
     * @param value
     *     allowed object is
     *     {@link LookupInstances.LookupParameters }
     *     
     */
    public void setLookupParameters(LookupInstances.LookupParameters value) {
        this.lookupParameters = value;
    }

    /**
     * Gets the value of the name property.
     * 
     * @return
     *     possible object is
     *     {@link String }
     *     
     */
    public String getName() {
        return name;
    }

    /**
     * Sets the value of the name property.
     * 
     * @param value
     *     allowed object is
     *     {@link String }
     *     
     */
    public void setName(String value) {
        this.name = value;
    }


    /**
     * <p>Java class for anonymous complex type.
     * 
     * <p>The following schema fragment specifies the expected content contained within this class.
     * 
     * <pre>
     * &lt;complexType>
     *   &lt;complexContent>
     *     &lt;restriction base="{http://www.w3.org/2001/XMLSchema}anyType">
     *       &lt;sequence>
     *         &lt;element name="lookupParameter">
     *           &lt;complexType>
     *             &lt;complexContent>
     *               &lt;restriction base="{http://www.w3.org/2001/XMLSchema}anyType">
     *                 &lt;attribute name="name" type="{http://www.w3.org/2001/XMLSchema}string" />
     *               &lt;/restriction>
     *             &lt;/complexContent>
     *           &lt;/complexType>
     *         &lt;/element>
     *       &lt;/sequence>
     *     &lt;/restriction>
     *   &lt;/complexContent>
     * &lt;/complexType>
     * </pre>
     * 
     * 
     */
    @XmlAccessorType(XmlAccessType.FIELD)
    @XmlType(name = "", propOrder = {
        "lookupParameter"
    })
    public static class LookupParameters {

        @XmlElement(required = true)
        protected LookupInstances.LookupParameters.LookupParameter lookupParameter;

        /**
         * Gets the value of the lookupParameter property.
         * 
         * @return
         *     possible object is
         *     {@link LookupInstances.LookupParameters.LookupParameter }
         *     
         */
        public LookupInstances.LookupParameters.LookupParameter getLookupParameter() {
            return lookupParameter;
        }

        /**
         * Sets the value of the lookupParameter property.
         * 
         * @param value
         *     allowed object is
         *     {@link LookupInstances.LookupParameters.LookupParameter }
         *     
         */
        public void setLookupParameter(LookupInstances.LookupParameters.LookupParameter value) {
            this.lookupParameter = value;
        }


        /**
         * <p>Java class for anonymous complex type.
         * 
         * <p>The following schema fragment specifies the expected content contained within this class.
         * 
         * <pre>
         * &lt;complexType>
         *   &lt;complexContent>
         *     &lt;restriction base="{http://www.w3.org/2001/XMLSchema}anyType">
         *       &lt;attribute name="name" type="{http://www.w3.org/2001/XMLSchema}string" />
         *     &lt;/restriction>
         *   &lt;/complexContent>
         * &lt;/complexType>
         * </pre>
         * 
         * 
         */
        @XmlAccessorType(XmlAccessType.FIELD)
        @XmlType(name = "")
        public static class LookupParameter {

            @XmlAttribute
            protected String name;

            /**
             * Gets the value of the name property.
             * 
             * @return
             *     possible object is
             *     {@link String }
             *     
             */
            public String getName() {
                return name;
            }

            /**
             * Sets the value of the name property.
             * 
             * @param value
             *     allowed object is
             *     {@link String }
             *     
             */
            public void setName(String value) {
                this.name = value;
            }

        }

    }

}

Unmarshal Code :

    public LookupInstances unmarshallXmlRequest(String xmlReq)
    {
        LookupInstances instances = null;
           try {
            JAXBContext jc = JAXBContext.newInstance( LookupInstances.class );
               Unmarshaller u = jc.createUnmarshaller();
               StringBuffer xmlStr = new StringBuffer( xmlReq );
               StringReader strReader = new StringReader( xmlStr.toString() );
               StreamSource strSource = new StreamSource(strReader);
               Object o = u.unmarshal( strSource );
               instances = (LookupInstances)o;
        } catch (JAXBException e) {

            e.printStackTrace();
        }
        return instances;
    }

I got this error :

javax.xml.bind.UnmarshalException: unexpected element (uri:"http://www.pqr.com/awd/rest/v1", local:"lookupInstances"). Expected elements are <{}lookupInstances>

Please help.

Rana over 9 years

Thanks for a quick reply @Magnilex. As you suggested I added the namespace in java class declaration and the error vanished. But while unmarshaling the java class, it does not contain all elements or not properly initialised. I changed the jaxb class which now contains List to capture lookupParameter and It is working now.
Magnilex over 9 years

@Rana Glad to help, and good that my answer pushed you in the right direction.
Rana over 9 years

That helped a lot Blaise. I was wondering how the app is working without mentioning namespace qualification in Java class, but as you explained it was package-info.java which was having that info. In my first attempt I got the xsd file wrong which dragged me into an incorrect Jaxb class. Thanks a lot.
faizi over 7 years

Is there any way to supply the xmlns URI from a properties file ? For me the xmlns URI need to change dynamically for test and production environments
ClickBright over 6 years

@XmlSchema(namespace = "pqr.com/awd/rest/v1", elementFormDefault = XmlNsForm.QUALIFIED) package your_package; import javax.xml.bind.annotation.XmlNsForm; import javax.xml.bind.annotation.XmlSchema; This part is very important for JAXB generated classes, especially elementFormDefault = XmlNsForm.QUALIFIED will not automatically be added by the JAXB. Thanks Blaise, your answer helped me.