NPE when deleting workspace (Neo4j driver)

[jdcasey]

[vert.x-eventloop-thread-2] INFO  o.c.a.d.v.Routes$BodyHandler_WorkspaceResource_delete_ - Attaching this as body handler.
Exception in thread "vertx-raw-dispatch-0" java.lang.NullPointerException
    at java.io.File.<init>(File.java:360)
    at org.commonjava.maven.atlas.graph.spi.neo4j.FileNeo4jWorkspaceFactory.deleteWorkspace(FileNeo4jWorkspaceFactory.java:62)
    at org.commonjava.maven.atlas.graph.EGraphManager.deleteWorkspace(EGraphManager.java:199)
    at org.commonjava.maven.cartographer.data.DefaultCartoDataManager.deleteWorkspace(DefaultCartoDataManager.java:846)
    at org.commonjava.maven.cartographer.data.DefaultCartoDataManager$Proxy$_$$_WeldClientProxy.deleteWorkspace(Unknown Source)
    at org.commonjava.maven.cartographer.ops.WorkspaceOps.delete(WorkspaceOps.java:56)
    at org.commonjava.maven.cartographer.ops.WorkspaceOps$Proxy$_$$_WeldClientProxy.delete(Unknown Source)
    at org.commonjava.aprox.depgraph.rest.WorkspaceController.delete(WorkspaceController.java:59)
    at org.commonjava.aprox.depgraph.rest.WorkspaceController$Proxy$_$$_WeldClientProxy.delete(Unknown Source)
    at org.commonjava.aprox.depgraph.vertx.WorkspaceResource.delete(WorkspaceResource.java:69)
    at org.commonjava.aprox.depgraph.vertx.WorkspaceResource$Proxy$_$$_WeldClientProxy.delete(Unknown Source)
    at org.commonjava.aprox.depgraph.vertx.Routes$BodyHandler_WorkspaceResource_delete_.run(Routes.java:2874)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:744)