17 new introduced java.sql tests (in JDK-8040760) "failed to clean up files after test" on windows, though testng report tests pass.

Example log:
===============================================
java/sql/test/sql/BatchUpdateExceptionTests.java
Total tests run: 17, Failures: 0, Skips: 0
===============================================

----------System.err:(3/39)----------

JavaTest Message: Test complete.

result: Passed. Execution successful


test result: Error. failed to clean up files after test