Bug 1067 - IOUtil.testDirExec(File) needs to preserve SPACE in exetst.getCanonicalPath() command
Having a test-executable file with SPACE in it's temporary path, e.g. Unix: /magic temp/user/ Windows XP: C:\Documents and Settings\user\temp
results to split up commands if using 'Process.exec(String)', since it utilizes a StringTokenizer to assemble the command String[].
This patch uses 'Process.exec(String[])' avoiding splitting up SPACE in the full command string/path.
Major impact is on 'Windows XP', where a SPACE separated TEMP/TMP folder is the default.
Note-1: Commit 9bc3d3f78bb2fb1aa0ccfb02ffb5bdda74420cac introduced testing executable permission on Windows (Bug 1015) and rendered this issue visible.
To reproduce the issue on Windows: +++ set TEMP=C:\Documents and Settings\jogamp\temp set TMP=C:\Documents and Settings\jogamp\temp "C:\Program Files (x86)\Mozilla Firefox\firefox.exe" +++