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The Java packages from Apache CXF and the Spring API are imported using dynamic imports (specified using the DynamicImport-Package element). This is a pragmatic way of dealing with the fact that Spring XML files are not terribly well integrated with the Maven bundle plug-in. At build time, the Maven bundle plug-in is not able to figure out which Java classes are required by the Spring XML code. By listing wildcarded package names in the DynamicImport-Package element, however, you allow the OSGi container to figure out which Java classes are needed by the Spring XML code at run time.

[Note]Note

In general, using DynamicImport-Package headers is not recommended in OSGi, because it short-circuits OSGi version checking. Normally, what should happen is that the Maven bundle plug-in lists the Java packages used at build time, along with their versions, in the Import-Package header. At deploy time, the OSGi container then checks that the available Java packages are compatible with the build time versions listed in the Import-Package header. With dynamic imports, this version checking cannot be performed.

After you have configured the POM file, you can build the Maven project and install it in your local repository by entering the following command:

mvn install

To deploy the client bundle, enter the following command at the Apache ServiceMix console:

karaf@root> install -s mvn:org.fusesource.sparks.fuse-webinars.cxf-webinars/customer-ws-client
[Note]Note

If your local Maven repository is stored in a non-standard location, you might need to customize the value of the org.ops4j.pax.url.mvn.localRepository property in the EsbInstallDir/etc/org.ops4j.pax.url.mvn.cfg file, before you can use the mvn: scheme to access Maven artifacts.

Assuming that you have already deployed the corresponding Web service into the OSGi container (see Build and deploy the service bundle), you can verify that the client is successfully invoking WSDL operations by checking the log, as follows:

karaf@root> log:display -n 10

The client invokes an operation on the Web service once every second.

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