test failures for oak-auth-ldap on Windows

testAuthenticateValidateTrueFalse(org.apache.jackrabbit.oak.security.authentication.ldap.LdapProviderTest) Time elapsed: 0.01 sec <<< ERROR!
java.io.IOException: Unable to delete file: target\apacheds\cache\5c3940f5-2ddb-4d47-8254-8b2266c1a684\ou=system.data
at org.apache.commons.io.FileUtils.forceDelete(FileUtils.java:2279)
at org.apache.commons.io.FileUtils.cleanDirectory(FileUtils.java:1653)
at org.apache.commons.io.FileUtils.deleteDirectory(FileUtils.java:1535)
at org.apache.commons.io.FileUtils.forceDelete(FileUtils.java:2270)
at org.apache.commons.io.FileUtils.cleanDirectory(FileUtils.java:1653)
at org.apache.commons.io.FileUtils.deleteDirectory(FileUtils.java:1535)
at org.apache.commons.io.FileUtils.forceDelete(FileUtils.java:2270)
at org.apache.commons.io.FileUtils.cleanDirectory(FileUtils.java:1653)
at org.apache.commons.io.FileUtils.deleteDirectory(FileUtils.java:1535)
at org.apache.jackrabbit.oak.security.authentication.ldap.AbstractServer.doDelete(AbstractServer.java:264)
at org.apache.jackrabbit.oak.security.authentication.ldap.AbstractServer.setUp(AbstractServer.java:183)
at org.apache.jackrabbit.oak.security.authentication.ldap.InternalLdapServer.setUp(InternalLdapServer.java:33)

etc...