hyperjaxb3 not generating files

I am trying to learn hyperjaxb by studying this tutorial. I followed all of the instructions down to the heading section What was Generated?. This included the following steps:

download the Basic Project Template for Hibernate and Maven
unzip the file
install the xml and xsd files in the assigned locations
open up cmd.exe
navigate to the directory of the unzipped root folder
run mvn clean install

But nothing was generated. There is no /generated-sources/xjc directory, and there is no PurchaseOrderType.java. I did a key word search of the entire directory structure to confirm that these resources were not present after running mvn clean install. I also imported the directory structure into a new eclipse maven project and tried run as...maven clean and run as...maven build within the new Eclipse Maven project, but got the same lack of results.

What can I do to get this tutorial to produce the intended generated files?

Also, is there a better way to generate JPA entities from xsd?

Edit

As per @kapep's advice, I tried mvn generate-sources and got the following results:

I then tried mvn clean install again, and got the following results:

You can see the warning in the print screens that org.apache.maven.plugins:maven-compiler-plugin is missing. I found the corresponding folder in the .m2 repository on my machine and deleted it, then did a maven update project from within eclipse to re-download the library. I then did another mvn clean install, and got the same lack of results. Nothing was generated, no java file, no generated-sources directory. Nothing.

What else can I try?

Second edit

The tutorial app still DOES NOT generate the intended files, however, I was able to get rid of the warning message in the print screens by changing the maven-compiler-plugin portion of the pom to the following:

<plugin>
    <inherited>true</inherited>
    <artifactId>maven-compiler-plugin</artifactId>
    <version>2.3.2</version>
    <configuration>
        <source>1.6</source>
        <target>1.6</target>
    </configuration>
</plugin>

Note that, in addition to specifying the version, I also changed the source and target from 1.5 to 1.6, as per @Todd 's advice in this posting. I assume these refer to JDK versions. My installation uses JDK 1.6. I do not know if this is causing any problems.

What else can I try?

Solution

UPDATE

Finally it appeared that the OP was looking for generated classes in the root directory of the project instead of target\generated-source\xjc, despite the tutorial clearly states where to look:

If you browse the target/generated-sources/xjc directory, you'll find few generated java files, for instance PurchaseOrderType.java.

Once again, I don't get this. Works for me.

My steps are:

Unzip hyperjaxb3-ejb-template-basic-0.6.0-maven-src.zip into some location
Put schema.xsd into src/main/resources
Put po.xml into src/test/samples
mvn clean install

And this is what I get, nice and clean:

[INFO] Scanning for projects...
[WARNING] 
[WARNING] Some problems were encountered while building the effective model for org.jvnet.hyperjaxb3:hyperjaxb3-ejb-template-basic-maven:jar:0.6.0
[WARNING] 'build.plugins.plugin.version' for org.apache.maven.plugins:maven-compiler-plugin is missing. @ line 75, column 12
[WARNING] 
[WARNING] It is highly recommended to fix these problems because they threaten the stability of your build.
[WARNING] 
[WARNING] For this reason, future Maven versions might no longer support building such malformed projects.
[WARNING] 
[INFO] 
[INFO] Using the builder org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder with a thread count of 1
[INFO]                                                                         
[INFO] ------------------------------------------------------------------------
[INFO] Building Hyperjaxb3 Samples [po-initial:maven] 0.6.0
[INFO] ------------------------------------------------------------------------
[INFO] 
[INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ hyperjaxb3-ejb-template-basic-maven ---
[INFO] Deleting C:\Projects\workspaces\hj3\dist\hyperjaxb3-ejb-template-basic-0.6.0\target
[INFO] 
[INFO] --- maven-hyperjaxb3-plugin:0.6.0:generate (default) @ hyperjaxb3-ejb-template-basic-maven ---
[INFO] Sources are not up-to-date; XJC execution will be executed.
[WARNING] According to the Java Persistence API specification, section 2.1, entities must be top-level classes:
"The entity class must be a top-level class."
Your JAXB model is not customized as with top-level local scoping, please use the <jaxb:globalBinding localScoping="toplevel"/> global bindings customization.
        org.jvnet.hyperjaxb3.ejb.plugin.EjbPlugin

[WARNING] According to the Java Persistence API specification, section 2.1, entities must implement the serializable interface:
"If an entity instance is to be passed by value as a detached object
(e.g., through a remote interface), the entity class must implement
 the Serializable interface."
Your JAXB model is not customized as serializable, please use the <jaxb:serializable/> global bindings customization element to make your model serializable.
        org.jvnet.hyperjaxb3.ejb.plugin.EjbPlugin

[INFO] 
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ hyperjaxb3-ejb-template-basic-maven ---
[WARNING] Using platform encoding (Cp1252 actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] Copying 2 resources
[INFO] Copying 0 resource
[INFO] Copying 1 resource
[INFO] 
[INFO] --- maven-compiler-plugin:2.5.1:compile (default-compile) @ hyperjaxb3-ejb-template-basic-maven ---
[WARNING] File encoding has not been set, using platform encoding Cp1252, i.e. build is platform dependent!
[INFO] Compiling 5 source files to C:\Projects\workspaces\hj3\dist\hyperjaxb3-ejb-template-basic-0.6.0\target\classes
[INFO] 
[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ hyperjaxb3-ejb-template-basic-maven ---
[WARNING] Using platform encoding (Cp1252 actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] Copying 2 resources
[INFO] 
[INFO] --- maven-compiler-plugin:2.5.1:testCompile (default-testCompile) @ hyperjaxb3-ejb-template-basic-maven ---
[WARNING] File encoding has not been set, using platform encoding Cp1252, i.e. build is platform dependent!
[INFO] Compiling 5 source files to C:\Projects\workspaces\hj3\dist\hyperjaxb3-ejb-template-basic-0.6.0\target\test-classes
[INFO] 
[INFO] --- maven-surefire-plugin:2.12.4:test (default-test) @ hyperjaxb3-ejb-template-basic-maven ---
[INFO] Surefire report directory: C:\Projects\workspaces\hj3\dist\hyperjaxb3-ejb-template-basic-0.6.0\target\surefire-reports

-------------------------------------------------------
 T E S T S
-------------------------------------------------------
Running RoundtripTest
Detected [file:/C:/Projects/workspaces/hj3/dist/hyperjaxb3-ejb-template-basic-0.6.0/target/classes/META-INF/persistence.xml].
    RoundtripTest

Loading entity manager factory properties.
    RoundtripTest

Loading entity manager factory properties from [file:/C:/Projects/workspaces/hj3/dist/hyperjaxb3-ejb-template-basic-0.6.0/target/test-classes/persistence.properties].
    RoundtripTest

Testing samples.
    RoundtripTest

Sample directory [C:\Projects\workspaces\hj3\dist\hyperjaxb3-ejb-template-basic-0.6.0\src\test\samples].
    RoundtripTest

Testing sample [po.xml].
    RoundtripTest

Unmarshalling.
    RoundtripTest

Opening session.
    RoundtripTest

Saving the object.
    RoundtripTest

Opening session.
    RoundtripTest

Loading the object.
    RoundtripTest

Closing the session.
    RoundtripTest

Initial object:
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<purchaseOrder orderDate="1999-10-20">
    <shipTo country="US">
        <name>Alice Smith</name>
        <street>123 Maple Street</street>
        <city>Mill Valley</city>
        <state>CA</state>
        <zip>90952</zip>
    </shipTo>
    <billTo country="US">
        <name>Robert Smith</name>
        <street>8 Oak Avenue</street>
        <city>Old Town</city>
        <state>PA</state>
        <zip>95819</zip>
    </billTo>
    <comment>Hurry, my lawn is going wild!</comment>
    <items>
        <item partNum="872-AA">
            <productName>Lawnmower</productName>
            <quantity>1</quantity>
            <USPrice>148.95</USPrice>
            <comment>Confirm this is electric</comment>
        </item>
        <item partNum="926-AA">
            <productName>Baby Monitor</productName>
            <quantity>1</quantity>
            <USPrice>39.98</USPrice>
            <shipDate>1999-05-21</shipDate>
        </item>
    </items>
</purchaseOrder>

    RoundtripTest

Source object:
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<purchaseOrder orderDate="1999-10-20" Hjid="1">
    <shipTo country="US" Hjid="2">
        <name>Alice Smith</name>
        <street>123 Maple Street</street>
        <city>Mill Valley</city>
        <state>CA</state>
        <zip>90952</zip>
    </shipTo>
    <billTo country="US" Hjid="1">
        <name>Robert Smith</name>
        <street>8 Oak Avenue</street>
        <city>Old Town</city>
        <state>PA</state>
        <zip>95819</zip>
    </billTo>
    <comment>Hurry, my lawn is going wild!</comment>
    <items Hjid="1">
        <item partNum="872-AA" Hjid="1">
            <productName>Lawnmower</productName>
            <quantity>1</quantity>
            <USPrice>148.95</USPrice>
            <comment>Confirm this is electric</comment>
        </item>
        <item partNum="926-AA" Hjid="2">
            <productName>Baby Monitor</productName>
            <quantity>1</quantity>
            <USPrice>39.98</USPrice>
            <shipDate>1999-05-21</shipDate>
        </item>
    </items>
</purchaseOrder>

    RoundtripTest

Result object:
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<purchaseOrder orderDate="1999-10-20" Hjid="1">
    <shipTo country="US" Hjid="2">
        <name>Alice Smith</name>
        <street>123 Maple Street</street>
        <city>Mill Valley</city>
        <state>CA</state>
        <zip>90952</zip>
    </shipTo>
    <billTo country="US" Hjid="1">
        <name>Robert Smith</name>
        <street>8 Oak Avenue</street>
        <city>Old Town</city>
        <state>PA</state>
        <zip>95819</zip>
    </billTo>
    <comment>Hurry, my lawn is going wild!</comment>
    <items Hjid="1">
        <item partNum="872-AA" Hjid="1">
            <productName>Lawnmower</productName>
            <quantity>1</quantity>
            <USPrice>148.95</USPrice>
            <comment>Confirm this is electric</comment>
        </item>
        <item partNum="926-AA" Hjid="2">
            <productName>Baby Monitor</productName>
            <quantity>1</quantity>
            <USPrice>39.98</USPrice>
            <shipDate>1999-05-21</shipDate>
        </item>
    </items>
</purchaseOrder>

    RoundtripTest

Checking the document identity.
    RoundtripTest

Finished testing sample [po.xml].
    RoundtripTest

Finished testing samples.
    RoundtripTest

Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 2.456 sec

Results :

Tests run: 1, Failures: 0, Errors: 0, Skipped: 0

[INFO] 
[INFO] --- maven-jar-plugin:2.4:jar (default-jar) @ hyperjaxb3-ejb-template-basic-maven ---
[INFO] Building jar: C:\Projects\workspaces\hj3\dist\hyperjaxb3-ejb-template-basic-0.6.0\target\hyperjaxb3-ejb-template-basic-maven-0.6.0.jar
[INFO] 
[INFO] --- maven-install-plugin:2.4:install (default-install) @ hyperjaxb3-ejb-template-basic-maven ---
[INFO] Installing C:\Projects\workspaces\hj3\dist\hyperjaxb3-ejb-template-basic-0.6.0\target\hyperjaxb3-ejb-template-basic-maven-0.6.0.jar to C:\Repository\org\jvnet\hyperjaxb3\hyperjaxb3-ejb-template-basic-maven\0.6.0\hyperjaxb3-ejb-template-basic-maven-0.6.0.jar
[INFO] Installing C:\Projects\workspaces\hj3\dist\hyperjaxb3-ejb-template-basic-0.6.0\pom.xml to C:\Repository\org\jvnet\hyperjaxb3\hyperjaxb3-ejb-template-basic-maven\0.6.0\hyperjaxb3-ejb-template-basic-maven-0.6.0.pom
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 11.185 s
[INFO] Finished at: 2014-10-09T00:56:18+01:00
[INFO] Final Memory: 22M/101M
[INFO] ------------------------------------------------------------------------

I have no idea why it does not work for you. Pleas post mvn clean install -X and dir /b/s logs so that I could check your setup.