Problem using webResources in configuration

I have been trying to get web resources into a resources directory where I can have them copied over during packaging and filtered as necessary. With 2.0 the targetPath doesn't work. And with 2.0.2 and 2.0.3-SNAPSHOT I can't seem to configure without it blowing up at all. They both die at the IOUtil.copy call in AbstractWarMojo

org.apache.maven.plugin.war.AbstractWarMojo.copyFilteredFile(AbstractWarMojo.java:921)

—

<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>2.0.2</version> <!-- also tried with 2.0.3-SNAPSHOT from head -->
<configuration>
<webResources>
<resource>
<targetPath>WEB-INF/spring</targetPath>
<filtering>true</filtering>
<directory>src/main/resources/WEB-INF/spring</directory>
<includes>
<include>*.xml</include>
<include>*.properties</include>
</includes>
</resource>
</webResources>
</configuration>
</plugin>

—

[INFO] Copy webapp webResources to /home/arimus/workspace-ym/ym/ym-proj/ym-web/target/myapp
[INFO] ------------------------------------------------------------------------
[ERROR] FATAL ERROR
[INFO] ------------------------------------------------------------------------
[INFO] org.apache.maven.project.MavenProject cannot be cast to java.lang.String
[INFO] ------------------------------------------------------------------------
[INFO] Trace
java.lang.ClassCastException: org.apache.maven.project.MavenProject cannot be cast to java.lang.String
at org.codehaus.plexus.util.InterpolationFilterReader.read(InterpolationFilterReader.java:269)
at org.codehaus.plexus.util.InterpolationFilterReader.read(InterpolationFilterReader.java:201)
at org.codehaus.plexus.util.InterpolationFilterReader.read(InterpolationFilterReader.java:162)
at java.io.Reader.read(Reader.java:123)
at org.codehaus.plexus.util.IOUtil.copy(IOUtil.java:212)
at org.codehaus.plexus.util.IOUtil.copy(IOUtil.java:200)
at org.apache.maven.plugin.war.AbstractWarMojo.copyFilteredFile(AbstractWarMojo.java:921)
at org.apache.maven.plugin.war.AbstractWarMojo.copyResources(AbstractWarMojo.java:415)
at org.apache.maven.plugin.war.AbstractWarMojo.buildWebapp(AbstractWarMojo.java:518)
at org.apache.maven.plugin.war.AbstractWarMojo.buildExplodedWebapp(AbstractWarMojo.java:347)
at org.apache.maven.plugin.war.WarMojo.performPackaging(WarMojo.java:164)
at org.apache.maven.plugin.war.WarMojo.execute(WarMojo.java:130)
at org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:443)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:539)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalWithLifecycle(DefaultLifecycleExecutor.java:480)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:459)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:311)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:278)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:143)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:334)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:125)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:272)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315)
at org.codehaus.classworlds.Launcher.launch(Launcher.java:255)
at org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430)
at org.codehaus.classworlds.Launcher.main(Launcher.java:375)