When starting server, seeing - option value "system@store" references an invalid or non-existant source "null"

Defining the source in the configuration:

<!-- Define the JCR repositories -->
<mode:repositories>
<!-- Specify the source that should be used for the EDS repository -->
<mode:repository jcr:name="repository" >
<mode:source>store</mode:source>
<!-- Define the options for the JCR repository, using camelcase version of JcrRepository.Option names-->
<mode:options jcr:primaryType="options">
<!-- Explicitly specify the "system" workspace in the "SystemStore" source. -->
<systemSourceName jcr:primaryType="mode:option" mode:value="system@store"/>
<!-- Explicitly specify the directory where the index files should be stored. -->
<queryIndexDirectory jcr:primaryType="mode:option" mode:value="/Users/vanhalbert/Downloads/jboss-soa-p-5/jboss-as/server/default/data/modeshape/repositories/repository/indexes"/>
</mode:options>
<!-- Define any custom node types. Importing CND files via JcrConfiguration is equivalent to specifying here.-->
<jcr:nodeTypes>
<mode:resource>/org/modeshape/sequencer/zip/zip.cnd</mode:resource>
</jcr:nodeTypes>
</mode:repository>
</mode:repositories>

Seeing this line in the server log:

[JcrRepository] The JCR Repository 'SYSTEM_SOURCE_NAME' option value "system@store" references an invalid or non-existant source "null"