cxf-xjc-plugin fails with "Failure to find javax.xml:jaxb-api:jar:2.1"

[KARR, DAVID (ATTSI)]

I'm converting my CXF/JAX-RS app from Ant to Maven.  I'm having some
trouble getting through "cxf-xjc-plugin".  When I run it, I'm seeing
this:

[ERROR] Failed to execute goal
org.apache.cxf:cxf-xjc-plugin:2.3.0:xsdtojava (generate-sources) on
project MyApp-war: Could not download extension artifact: Requested
download does not exist. Failure to find javax.xml:jaxb-api:jar:2.1 in
http://repo1.maven.org/maven2 was cached in the local repository,
resolution will not be reattempted until the update interval of central
has elapsed or updates are forced

Looking in the CXF lib directory, I see "jaxb-api-2.2.1.jar".  I wonder
if that version difference is related to this?

The following is my plugin element:
----------------------------------
                <plugin>
                        <groupId>org.apache.cxf</groupId>
                        <artifactId>cxf-xjc-plugin</artifactId>
                        <version>2.3.0</version>
                        <executions>
                                <execution>
                                        <id>generate-sources</id>
                                        <phase>generate-sources</phase>
                                        <goals>
                                                <goal>xsdtojava</goal>
                                        </goals>
                                        <configuration>
                                         <extensions>
 
<extension>JAXBXMLElementWrapperPlugin:JAXBXMLElementWrapperPlugin:0.0.1
-SNAPSHOT</extension>
                                         </extensions>
                                         <xsdOptions>
                                             <xsdOption>
 
<xsd>${basedir}/src/main/resources/schema/serviceCallResults.xsd</xsd>
 
<bindingFile>${basedir}/src/main/resources/xjc/bindings.xml</bindingFile
>
 
<extension>true</extension>
                                                 <extensionArgs>
 
<extensionArg>-Xxew</extensionArg>
 
<extensionArg>-summary ${basedir}/target/xew-summary.txt</extensionArg>
 
<extensionArg>-instantiate lazy</extensionArg>
                                                 </extensionArgs>
                                             </xsdOption>
                                         </xsdOptions>
                                        </configuration>
                                </execution>
                        </executions>
                </plugin>
--------------------

The JAXBXMLElementWrapperPlugin is an artifact I built locally.