Netconf Testtool fails on Windows if --schemas-dir parameter set

While --schemas-dir parameter set Netconf Testtool fails with exception. Bug reproduces only on Windows.

Expected behavior:  Test tool should work the same way as on Linux.

Actual behavior: Test tool fails with exception:

Exception in thread "main" java.lang.IllegalStateException: Failed to rename '%s'.D:\workspace\netconf\schemas\augment-main-a.yangException in thread "main" java.lang.IllegalStateException: Failed to rename '%s'.D:\workspace\netconf\schemas\augment-main-a.yang at org.opendaylight.netconf.test.tool.TesttoolParameters.validate(TesttoolParameters.java:329) at org.opendaylight.netconf.test.tool.Main.main(Main.java:38)