RFR: 8205438: Re-enable shebang tests in test/jdk/tools/launchers/SourceMode.java

[mandy chung]

Looks good.  It's amazing to find out 3 different behavior on these 3 
platforms.

Mandy

On 6/27/18 1:37 PM, Jonathan Gibbons wrote:
> Please review a test fix to re-enable shebang tests in 
> test/jdk/tools/launchers/SourceMode.java .
> 
> The test cases for invoking the source launcher via the shebang 
> mechanism have been disabled because they were adversely affected by the 
> very long pathnames on our internal test infastructure, causing the test 
> cases to overflow the system limit of 128 characters for the first line 
> of a shebang file
> 
> The fix is to run jlink to create a small image that can be addressed by 
> a short relative path.
> 
> Some of the test cases on macOS and Solaris remain explicitly disabled 
> because of the inconsistencies in the system-level support for shebang 
> execution.
> 
> Finally, the use of hard-coded version numbers in the test is changed to 
> avoid having to add this test to the list of tests that need to be 
> modified at the beginning of each release.
> 
> -- Jon
> 
> JBS: https://bugs.openjdk.java.net/browse/JDK-8205438
> Webrev: http://cr.openjdk.java.net/~jjg/8205438/webrev.00/