Maven2で「Failed to transfer file: http://localhost/XXXX/XXXX.jar Return code is: 500 Internal Server Error」

ローカルPCに建てたリポジトリにデプロイしようとすると以下のエラーが出た。

 [INFO] Retrieving previous build number from localhost.maven2
WAGON_VERSION: 1.0-beta-2
Downloading [localhost.maven2] -> http://localhost:50000/maven2//maven2sample/maven2sample/0.0.1-SNAPSHOT/maven2sample-0.0.1-20090620.084158-1.jar
.org.apache.maven.plugin.MojoExecutionException: Error deploying artifact: Failed to transfer file: http://localhost:50000/maven2/maven2sample/maven2sample/0.0.1-SNAPSHOT/maven2sample-0.0.1-20090620.084158-1.jar. Return code is: 500 Internal Server Error
at org.apache.maven.plugin.deploy.DeployMojo.execute(DeployMojo.java:195)
at org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:578)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:508)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:328)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:151)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:220)
at org.apache.maven.embedder.MavenEmbedder.execute(MavenEmbedder.java:813)
at org.maven.ide.eclipse.embedder.Maven2Executor.main(Maven2Executor.java:85)
Caused by: org.apache.maven.artifact.deployer.ArtifactDeploymentException: Error deploying artifact: Failed to transfer file: http://localhost:50000/maven2/maven2sample/maven2sample/0.0.1-SNAPSHOT/maven2sample-0.0.1-20090620.084158-1.jar. Return code is: 500 Internal Server Error
at org.apache.maven.artifact.deployer.DefaultArtifactDeployer.deploy(DefaultArtifactDeployer.java:115)
at org.apache.maven.plugin.deploy.DeployMojo.execute(DeployMojo.java:173)
... 7 more
Caused by: org.apache.maven.wagon.TransferFailedException: Failed to transfer file: http://localhost:50000/maven2/maven2sample/maven2sample/0.0.1-SNAPSHOT/maven2sample-0.0.1-20090620.084158-1.jar. Return code is: 500 Internal Server Error
at org.apache.maven.wagon.providers.webdav.WebDavWagon.put(WebDavWagon.java:311)
at org.apache.maven.artifact.manager.DefaultWagonManager.putRemoteFile(DefaultWagonManager.java:222)
at org.apache.maven.artifact.manager.DefaultWagonManager.putArtifact(DefaultWagonManager.java:150)
at org.apache.maven.artifact.deployer.DefaultArtifactDeployer.deploy(DefaultArtifactDeployer.java:103)
... 8 more

Apacheが500エラーを返しているらしい。
Aapcheのログをみると、

 [Sat Jun 20 18:12:03 2009] [error] [client 127.0.0.1] File does not exist: C:/fujihara/Apache Software Foundation/Apache2.2/htdocs/maven2/maven2sample
[Sat Jun 20 18:12:03 2009] [error] [client 127.0.0.1] A lock database was not specified with the DAVLockDB directive. One must be specified to use the locking functionality.  [500, #401]
[Sat Jun 20 18:12:03 2009] [error] [client 127.0.0.1] A lock database was not specified with the DAVLockDB directive. One must be specified to use the locking functionality.  [500, #401]
[Sat Jun 20 18:12:03 2009] [error] [client 127.0.0.1] A lock database was not specified with the DAVLockDB directive. One must be specified to use the locking functionality.  [500, #401]
[Sat Jun 20 18:12:03 2009] [error] [client 127.0.0.1] A lock database was not specified with the DAVLockDB directive. One must be specified to use the locking functionality.  [500, #401]

と「A lock database was not specified with the DAVLockDB directive」みたいにロックファイルがどうこういっている。
どうも、DAVLockDBというのを指定する必要があるみたいなので、httpd.confに追記。

 DAVLockDB "C:\fujihara\Apache Software Foundation\Apache2.2\dav\DAVLock"
<Location /maven2>
Dav on
DavMinTimeout 600
</Location>

リポジトリを見てみると、デプロイされたー。