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How to specify a list of complexType in XML?

I have XML specified the following:
<xs:element name="getNewsResponse">
<xs:complexType>
<xs:sequence>
<xs:element name="newsItem" type="tns:newsList"/>
</xs:sequence>
</xs:complexType>
</xs:element>
<xs:simpleType name="newsList">
<xs:list itemType="tns:news"/>
</xs:simpleType>
<xs:complexType name="news">
<xs:sequence>
<xs:element name="id" type="xs:string"/>
<xs:element name="date" type="xs:string"/>
<xs:element name="author" type="tns:author"/>
<xs:element name="title" type="xs:string"/>
<xs:element name="shortDescription" type="xs:string"/>
<xs:element name="content" type="xs:string"/>
</xs:sequence>
</xs:complexType>
I would like to have a list of the news in my response. However when I would like to create Java object with jaxb2 the xml returns the folllowing error when I run mvn clean compile -X:
org.xml.sax.SAXParseException: cos-st-restricts.1.1: The type 'newsList' is atomic, so its {base type definition}, 'tns:news', must be an atomic simple type definition or a built-in primitive datatype.
How I should change my XML to be able to compile?

In addition to using the built-in list types, you can create new list types by derivation from existing atomic types. You cannot create list types from existing list types, nor from complex types.
https://www.w3.org/TR/xmlschema-0/#ListDt
This is from one of my working XSD, a user with multiple addresses:
<xs:complexType name="user">
<xs:sequence>
<xs:element name="addresses" type="tns:addressData" nillable="true" minOccurs="0" maxOccurs="unbounded"/>
Note that addressData is a complexType.
I guess this is what you need:
<xs:element name="getNewsResponse">
<xs:complexType>
<xs:sequence>
<xs:element name="newsItems" type="tns:news" nillable="true" minOccurs="0" maxOccurs="unbounded"/>
</xs:sequence>
</xs:complexType>
</xs:element>
<xs:complexType name="news">
<xs:sequence>
<xs:element name="id" type="xs:string"/>
<xs:element name="date" type="xs:string"/>
<xs:element name="author" type="tns:author"/>
<xs:element name="title" type="xs:string"/>
<xs:element name="shortDescription" type="xs:string"/>
<xs:element name="content" type="xs:string"/>
</xs:sequence>
</xs:complexType>

<?xml version="1.0"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
targetNamespace="http://pro.com/balcao/xdto"
xmlns:tns="http://pro.com/balcao/xdto"
elementFormDefault="qualified">
<xs:element name="salvarCliente" >
<xs:complexType>
<xs:sequence>
<xs:element name="nome" type="xs:string" />
<xs:element name="telefone" type="xs:string" />
<xs:element name="provincia" type="xs:string" />
<xs:element name="municipio" type="xs:string" />
</xs:sequence>
</xs:complexType>
</xs:element>
<xs:complexType name="listarClientes">
<xs:sequence minOccurs="0" maxOccurs="unbounded">
<xs:element name="clientes" type="tns:cliente" />
</xs:sequence>
</xs:complexType>
<xs:complexType name="cliente">
<xs:sequence>
<xs:element name="nome" type="xs:string" />
<xs:element name="telefone" type="xs:string" />
<xs:element name="provincia" type="xs:string" />
<xs:element name="municipio" type="xs:string" />
</xs:sequence>
</xs:complexType>
</xs:schema>

Extract list of objects from WSDL XML with XPath

I have the following XML:
<?xml version="1.0" encoding="UTF-8"?>
<DataSet xmlns="http://MRCS/">
<xs:schema id="Estacoes" xmlns="" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
<xs:element name="Estacoes" msdata:IsDataSet="true" msdata:UseCurrentLocale="true">
<xs:complexType>
<xs:choice minOccurs="0" maxOccurs="unbounded">
<xs:element name="Table">
<xs:complexType>
<xs:sequence>
<xs:element name="NomeEstacao" type="xs:string" minOccurs="0"/>
<xs:element name="CodEstacao" type="xs:string" minOccurs="0"/>
<xs:element name="Bacia" type="xs:string" minOccurs="0"/>
<xs:element name="SubBacia" type="xs:decimal" minOccurs="0"/>
<xs:element name="Operadora" type="xs:string" minOccurs="0"/>
<xs:element name="Responsavel" type="xs:string" minOccurs="0"/>
<xs:element name="Municipio-UF" type="xs:string" minOccurs="0"/>
<xs:element name="Latitude" type="xs:decimal" minOccurs="0"/>
<xs:element name="Longitude" type="xs:decimal" minOccurs="0"/>
<xs:element name="Altitude" type="xs:decimal" minOccurs="0"/>
<xs:element name="CodRio" type="xs:decimal" minOccurs="0"/>
<xs:element name="NomeRio" type="xs:string" minOccurs="0"/>
<xs:element name="Origem" type="xs:string" minOccurs="0"/>
<xs:element name="StatusEstacao" type="xs:string" minOccurs="0"/>
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:choice>
</xs:complexType>
</xs:element>
</xs:schema>
<diffgr:diffgram xmlns:msdata="urn:schemas-microsoft-com:xml-msdata" xmlns:diffgr="urn:schemas-microsoft-com:xml-diffgram-v1">
<Estacoes xmlns="">
<Table diffgr:id="Table1" msdata:rowOrder="0">
<NomeEstacao>GUARAPUAVA - COLÉGIO AGRICOLA</NomeEstacao>
<CodEstacao>02551010</CodEstacao>
<Bacia>6</Bacia>
<SubBacia>65</SubBacia>
<Operadora>00067 - IAPAR - IAPAR</Operadora>
<Responsavel>00067 - IAPAR - IAPAR</Responsavel>
<Municipio-UF>GUARAPUAVA-PR</Municipio-UF>
<Latitude>-25.36470</Latitude>
<Longitude>-51.49690</Longitude>
<Altitude>1045.00</Altitude>
<CodRio>0</CodRio>
<NomeRio/>
<Origem>ANA/SIVAM</Origem>
<StatusEstacao>Ativo</StatusEstacao>
</Table>
</Estacoes>
</diffgr:diffgram>
</DataSet>
From which i want to extract the <Table> element. If i use xpath(/*) i can get the entire document, but i can't figure out a way to extract certain elements from it. Is it even possible to use XPath with WSDL XMLs?
EDIT: i am using PostgreSQL xpath function to query from a XML column

Instead of handling the quite complex issue with the various namespaces on that document you can select this Table element with the XPath expression
xpath(/*/*/*/Table)
It selects all Table elements on every fourth level.

Java XML Schema Validation elementFormDefault="qualified"

I have a XSD:
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" attributeFormDefault="unqualified"
elementFormDefault="qualified">
<xs:element name="Structure">
<xs:annotation>
<xs:documentation>Comment describing your root element</xs:documentation>
</xs:annotation>
<xs:complexType>
<xs:sequence>
<xs:element minOccurs="0" ref="Tag1"/>
<xs:element maxOccurs="unbounded" minOccurs="0" ref="Tag2"/>
<xs:element minOccurs="0" ref="Properties"/>
<xs:element minOccurs="0" ref="Tag3"/>
</xs:sequence>
<xs:attribute name="url"/>
</xs:complexType>
</xs:element>
<xs:element name="Tag1">
<xs:complexType>
<xs:attribute name="attr"/>
<xs:attribute name="attr2"/>
</xs:complexType>
</xs:element>
<xs:element name="Tag2">
<xs:complexType>
<xs:sequence maxOccurs="unbounded">
<xs:element minOccurs="0" ref="Object"/>
<xs:element maxOccurs="unbounded" minOccurs="0" ref="Tag2"/>
</xs:sequence>
<xs:attribute name="filter"/>
</xs:complexType>
</xs:element>
<xs:element name="Object">
<xs:complexType>
<xs:sequence>
<xs:element minOccurs="0" name="tag35">
<xs:complexType>
<xs:sequence minOccurs="0">
<xs:element maxOccurs="unbounded" minOccurs="0" ref="Tag3"/>
</xs:sequence>
<xs:attribute name="attr4"/>
</xs:complexType>
</xs:element>
</xs:sequence>
<xs:attribute name="attr48"/>
</xs:complexType>
</xs:element>
<xs:element name="element52">
<xs:annotation>
<xs:documentation>Text54</xs:documentation>
</xs:annotation>
<xs:complexType>
<xs:sequence>
<xs:element minOccurs="0" ref="el58"/>
</xs:sequence>
<xs:attribute name="vector"/>
</xs:complexType>
</xs:element>
<xs:element name="el66" type="el66Type"/>
<xs:element name="el58">
<xs:complexType mixed="true">
<xs:attribute name="ID" type="xs:string"/>
</xs:complexType>
</xs:element>
<xs:element name="Tag3">
<xs:complexType>
<xs:sequence maxOccurs="unbounded" minOccurs="0">
<xs:element minOccurs="0" name="MetaProperty">
<xs:complexType>
<xs:sequence minOccurs="0">
<xs:any/>
</xs:sequence>
<xs:attribute name="name"/>
<xs:attribute name="value"/>
</xs:complexType>
</xs:element>
<xs:element minOccurs="0" ref="Property"/>
</xs:sequence>
<xs:attribute name="ID"/>
<xs:attribute name="language" use="optional"/>
</xs:complexType>
</xs:element>
<xs:element name="Property">
<xs:complexType>
<xs:sequence minOccurs="0">
<xs:any minOccurs="0" processContents="skip"/>
</xs:sequence>
<xs:attribute name="name"/>
<xs:attribute name="type"/>
</xs:complexType>
</xs:element>
<xs:element name="Properties">
<xs:complexType>
<xs:sequence maxOccurs="unbounded" minOccurs="0">
<xs:element minOccurs="0" ref="Property"/>
</xs:sequence>
</xs:complexType>
</xs:element>
<xs:complexType mixed="true" name="el66Type">
<xs:attribute name="ID" type="xs:string"/>
</xs:complexType>
</xs:schema>
And an xml:
<Structure url="/Test/url">
<Tag1/>
<Tag2>
<Object>
<tag35/>
</Object>
</Tag2>
<Properties>
<Property name="bla" type="value1"/>
<Property name="bla2" type="value2"/>
</Properties>
</Structure>
I am doing a validation, and I am getting the following error:
org.xml.sax.SAXParseException; cvc-complex-type.2.4.a: Invalid content was found starting with element 'Tag2'. One of '{Tag1, Tag2, Tag3}' is expected.
I checked in previous questions and always the solution is related with elementFormDefault="qualified" but now it is not the case so, could it be possible that there is a bug there? Any clue, will be grateful.

Your XML is valid against your XSD as posted in your question.
The error message in your question would not be returned. It must have been from different XML or XSD documents.
As Michael Kay states in the comments:
elementFormDefault only affects local elements declarations.
elementFormDefault only comes into play when the XSD has a targetNamespace.
For more details about elementFormDefault see this answer.

Can't generate Java code with the bundled Jaxb for Intellij

I have to modify a project using XSD validation. I had got an XML, I transformed it to XSD via Intellij and then generated the associated code with the JAXB tool. All was fine.
But for the project needs, I had to modify the entire structure of my XML, I did it. I generate the XSD as well. But, When I tried to generate the Java code via the jaxb tools, it was impossible.
When I click in this jaxb tool, it just generated another XSD.
How can I do to generate, once again, the code ?
Thank you !
There is my XSD.
<?xml version="1.0" encoding="UTF-8"?>
<xs:schema attributeFormDefault="unqualified" elementFormDefault="qualified" xmlns:xs="http://www.w3.org/2001/XMLSchema">
<xs:element name="PurgeConfigurationRacine" type="PurgeConfigurationRacineType"/>
<xs:complexType name="BusinessBaseType">
<xs:sequence>
<xs:element type="ArchiveDataOperationType" name="ArchiveDataOperation"/>
<xs:element type="PurgeDataOperationType" name="PurgeDataOperation"/>
<xs:element type="DeleteArchivedDataOperationType" name="DeleteArchivedDataOperation"/>
</xs:sequence>
<xs:attribute type="xs:string" name="dataSourceRef"/>
</xs:complexType>
<xs:complexType name="SqlQueryType">
<xs:simpleContent>
<xs:extension base="xs:string">
<xs:attribute type="xs:string" name="name" use="optional"/>
<xs:attribute type="xs:string" name="step" use="optional"/>
<xs:attribute type="xs:string" name="multi" use="optional"/>
<xs:attribute type="xs:string" name="param" use="optional"/>
<xs:attribute type="xs:string" name="value" use="optional"/>
</xs:extension>
</xs:simpleContent>
</xs:complexType>
<xs:complexType name="ArchiveDataOperationType">
<xs:sequence>
<xs:element type="SqlQueryType" name="SqlQuery" maxOccurs="unbounded" minOccurs="0"/>
</xs:sequence>
</xs:complexType>
<xs:complexType name="PurgeDataOperationType">
<xs:sequence>
<xs:element type="SqlQueryType" name="SqlQuery" maxOccurs="unbounded" minOccurs="0"/>
</xs:sequence>
</xs:complexType>
<xs:complexType name="PurgeConfigurationRacineType">
<xs:sequence>
<xs:element type="BusinessBaseType" name="BusinessBase"/>
<xs:element type="DataBaseType" name="DataBase"/>
</xs:sequence>
</xs:complexType>
<xs:complexType name="DeleteArchivedDataOperationType">
<xs:sequence>
<xs:element type="SqlQueryType" name="SqlQuery" maxOccurs="unbounded" minOccurs="0"/>
</xs:sequence>
</xs:complexType>
<xs:complexType name="DataBaseType">
<xs:sequence>
<xs:element type="ArchiveDataOperationType" name="ArchiveDataOperation"/>
<xs:element type="PurgeDataOperationType" name="PurgeDataOperation"/>
</xs:sequence>
<xs:attribute type="xs:string" name="dataSourceRef"/>
</xs:complexType>
</xs:schema>

The problem that you are facing is a known issue, it is due to the fact that you have an attribute called value which is a protected name, such that you need to specify to xjc that it has to use a different name, it can be done by adding some meta information in your XSD file as next:
<xs:attribute type="xs:string" name="value" use="optional">
<xs:annotation>
<xs:appinfo>
<jaxb:property name="sqlQueryTypeValue"/>
</xs:appinfo>
</xs:annotation>
</xs:attribute>
You will also need to add the corresponding namespace declaration and the jaxb version to use, for example:
<xs:schema ... xmlns:jaxb="http://java.sun.com/xml/ns/jaxb" jaxb:version="2.1">
More information about how to customize JAXB binding

Java jaxb xsd how to allow maxOccurence

I want following xml output and have following xsd
<msgBody>
<Contato>
<cd_id>11</cd_id>
<property key="name" value="Adde" />
<property key="Phone" value="34343" />
<property key="Address" value="address" />
</Contato>
<Contato>
<cd_id>12</cd_id>
<property key="name" value="BJ" />
<property key="Phone" value="7899" />
<property key="Address" value="sdfkjsdfsdf" />
</Contato>
</msgBody>
I have following xsd where i don't know how can i allow to have multiple property tags
<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
<xs:element name="msgBody">
<xs:complexType>
<xs:sequence>
<xs:element name="Contato" maxOccurs="unbounded" minOccurs="0">
<xs:complexType>
<xs:sequence>
<xs:element type="xs:int" name="cd_id"/>
<xs:element type="property_data_type" name="property"/>
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:sequence>
</xs:complexType>
<xs:complexType name="property_data_type">
<xs:sequence>
<xs:element type="xs:string" name="key"/>
<xs:element type="xs:string" name="value"/>
</xs:sequence>

Try this
<xs:element name="msgBody">
<xs:complexType>
<xs:sequence>
<xs:element maxOccurs="unbounded" ref="Contato"/>
</xs:sequence>
</xs:complexType>
</xs:element>
<xs:element name="contao">
<xs:complexType>
<xs:sequence>
<xs:element type="xs:int" name="cd_id"/>
<xs:element maxOccurs="unbounded" ref="propertytype"/>
</xs:sequence>
</xs:complexType>
</xs:element>
<xs:element name="propertytype">
<xs:complexType>
<xs:sequence>
<xs:element type="xs:string" name="key"/>
<xs:element type="xs:string" name="value"/>
</xs:sequence>
</xs:complexType>
</xs:element>

Please add maxOccurs.
<xs:element type="property_data_type" name="property" maxOccurs="unbounded"/>
Alternatively, you can put any concrete limit like:
<xs:element type="property_data_type" name="property" maxOccurs="10"/>
It means you can only have a maximum of 10 property elements. The <maxOccurs> indicator specifies the maximum number of times an element can occur.