FilePersistenceManager fails to rename configuration file

Quite frequently a file move fails. The symptom is:

java.io.IOException: Failed to rename configuration file from 'C:\Users\mli\nuc\env\master\karaf\karaf\karaf-deploy-std\target\karaf\data\cache\bundle5\data\config\org_apache_felix_cm_impl_DynamicBindings.config2019338524809240991.tmp' to 'C:\Users\mli\nuc\env\master\karaf\karaf\karaf-deploy-std\target\karaf\data\cache\bundle5\data\config\org_apache_felix_cm_impl_DynamicBindings.config
at org.apache.felix.cm.file.FilePersistenceManager._store(FilePersistenceManager.java:640)[5:org.apache.felix.configadmin:1.6.0]
at org.apache.felix.cm.file.FilePersistenceManager.store(FilePersistenceManager.java:582)[5:org.apache.felix.configadmin:1.6.0]
at org.apache.felix.cm.impl.DynamicBindings.putLocation(DynamicBindings.java:116)[5:org.apache.felix.configadmin:1.6.0]
at org.apache.felix.cm.impl.ConfigurationManager.setDynamicBundleLocation(ConfigurationManager.java:461)[5:org.apache.felix.configadmin:1.6.0]
at org.apache.felix.cm.impl.ConfigurationImpl.setDynamicBundleLocation(ConfigurationImpl.java:281)[5:org.apache.felix.configadmin:1.6.0]
at org.apache.felix.cm.impl.ConfigurationImpl.tryBindLocation(ConfigurationImpl.java:304)[5:org.apache.felix.configadmin:1.6.0]
at org.apache.felix.cm.impl.ConfigurationManager$UpdateConfiguration.run(ConfigurationManager.java:1705)[5:org.apache.felix.configadmin:1.6.0]
at org.apache.felix.cm.impl.UpdateThread.run(UpdateThread.java:103)[5:org.apache.felix.configadmin:1.6.0]
at java.lang.Thread.run(Thread.java:724)[:1.7.0_25]

Perhaps the file exists and cannot be deleted (could report return value of the delete() on line 634).