6962419: TEST_BUG: java_io tests fails in samevm mode

[Xueming Shen]

looks good.

Alan Bateman wrote:
>
> This is another batch of updates to the regression tests to allow them 
> be run in jtreg samevm mode. This batch covers the java.io tests. As 
> expected, most of the issues are simply tests leaving files open, 
> causing problems for subsequent tests running in the same VM. There 
> are also several other random issues such as tests assuming the 
> working directory, one test assuming it will be defined by the system 
> class loader, and an issue cleaning up after a test that leaves a 
> hidden file.
>
> The webrev with the changes is here:
>  http://cr.openjdk.java.net/~alanb/6962419/webrev/
>
> With these changes (plus yesterday's batch to fix the serialization 
> tests) then all 305 java.io tests pass, for me, in both samevm and 
> othervm modes on all platforms.
>
> Alan.