Build fails on Windows because temp directory cannot be deleted

[cruzel89]

Description

The build fails on Windows because junit seems to create temp directories which cannot be deleted.

Steps to Reproduce

1. Open a CMD or Git Bash in the directory where OFT was cloned to
2. Execute mvn install

Expected behavior

Build finishes successfully

Environment

• OFT: 2.0.2
• OS: Windows 7 x64
• Java Version: 1.8.0_192
• Maven Version (in case of build problems only): 3.5.4

Error messages

error.log