RFR:JDK-8075205 java/net/URLClassLoader/closetest/CloseTest.java and GetResourceAsStream.java failed with existing dir

[Srinivasan Raghavan]

Hi all

Please review the fix for the bug 

Bug :https://bugs.openjdk.java.net/browse/JDK-8075205

The tests uses classes directory for the output files. This can result in the files being left over after the test is complete which can result in instability. The tests copies the files to be compiled form test src to test classes which can result in copy of permission and result in instability because the test has delete operations. The test fails randomly mostly in copy or delete operation. I propose the test to be refactored to make the use scratch directory as its output directory and eliminate shell by using testlibrary utils.

fix : http://cr.openjdk.java.net/~sraghavan/8075205/webrev.00/

Regards
Srinivasan Raghavan