XML problems in java project

[Ali Gordon]

This is a question about xml files in a java project. I have a spring 4 project which can be downloaded from here - http://www.perfmath.com/spring/soba_zip/soba4_download_1.zip

Under src > main > webapp > web-inf > lib, the soba-webflow.xml file is giving me many errors. I googled this and saw similar errors, but I did not find a method to correct it in my case.
Please help.

Error 1 -

Multiple annotations found at this line:
    - cvc-complex-type.2.4.c: The matching wildcard is strict, but no declaration can be found for element 'webflow:flow-registry'.
    - schema_reference.4: Failed to read schema document 'http://www.springframework.org/schema/webflow-config/spring-webflow-config-2.4.xsd', because 1) could not find the document; 2) the document could not be 
     read; 3) the root element of the document is not <xsd:schema>.

Error 2 -

cvc-complex-type.2.4.c: The matching wildcard is strict, but no declaration can be found for element 'webflow:flow-executor'.

Code snippet from the xml file -

<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:webflow="http://www.springframework.org/schema/webflow-config"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/webflow-config
        http://www.springframework.org/schema/webflow-config/spring-webflow-config-2.4.xsd">

    <bean class="org.springframework.webflow.mvc.servlet.FlowHandlerMapping" >
    <property name="flowRegistry" ref="flowRegistry" />
    <property name ="order" value="1" />
    </bean>

    <bean name="flowHandlerAdapter" class="org.springframework.webflow.mvc.servlet.FlowHandlerAdapter">
     <property name="flowExecutor" ref="flowExecutor" />
     </bean>

    <webflow:flow-registry id="flowRegistry">
        <webflow:flow-location
            path="/WEB-INF/flows/onlineService/onlineService.xml" />
        <webflow:flow-location
            path="/WEB-INF/flows/customerSearch/customerSearch.xml" />
        <webflow:flow-location
            path="/WEB-INF/flows/customerDetails/customerDetails.xml" />
        <webflow:flow-location
            path="/WEB-INF/flows/transferMoney/transferMoney.xml" />
    </webflow:flow-registry>

    <webflow:flow-executor id="flowExecutor">
        <webflow:flow-execution-listeners>
            <webflow:listener ref="securityFlowExecutionListener" />
            <webflow:listener ref="jpaFlowExecutionListener" />
        </webflow:flow-execution-listeners>
    </webflow:flow-executor>

[Jaikiran Pai]

- schema_reference.4: Failed to read schema document 'http://www.springframework.org/schema/webflow-config/spring-webflow-config-2.4.xsd', because 1) could not find the document; 2) the document could not be
read; 3) the root element of the document is not <xsd:schema>.

That document isn't present at that location (you can verify by accessing it in your browser). Try pointing the schema location to a valid xsd.

[Jayesh A Lalwani]

THe XSD doesn't have to be on the internet for spring to work. The XSD can be inside a JAR file in the classpath. That JAR file needs to have a spring.schemas file that maps the URL to the XSD inside the JAR file THis document describes how Spring namespaces are handled


Generally, if you get an error from Spring that says that it can;t locate the namespace XSD, the problem is that you have a JAR file missing in your classpath (or you have merely misspelled something in the namespace declaration)

So,
1) DOuble check your name space declaration. There might be silly mistake
2) Look at your dependencies. You probably have a jar file missing. THis could happen if you have the wrong version of spring web flow.


Edit:

Ok my hunch was correct. I looked at your POM, and it has
<spring.webflow.version>2.3.3.RELEASE</spring.webflow.version>

So, you are using 2.3.3 release of spring web flow, but referring to 2.4.xsd. That's not going to work. You need to have the correct version.