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"
+++

Note-2: This bug affects all platforms!

1 files changed, 5 insertions, 2 deletions

diff --git a/src/java/com/jogamp/common/util/IOUtil.java b/src/java/com/jogamp/common/util/IOUtil.java
index d9fb9cf..76420db 100644
--- a/src/java/com/jogamp/common/util/IOUtil.java
+++ b/src/java/com/jogamp/common/util/IOUtil.java
@@ -821,7 +821,9 @@ public class IOUtil {
                     fout.write(shellCode);
                     fout.close();
                 }
-                final Process pr = Runtime.getRuntime().exec(exetst.getCanonicalPath());
+                // Using 'Process.exec(String[])' avoids StringTokenizer of 'Process.exec(String)'
+                // and hence splitting up command by spaces!
+                final Process pr = Runtime.getRuntime().exec(new String[] { exetst.getCanonicalPath() } );
                 /**
                  * Disable StreamMonitor, which throttles exec-test performance a lot!
                  *
@@ -1086,7 +1088,8 @@ public class IOUtil {
         }
         final File r = executable ? tempRootExec : tempRootNoexec ;
         if(null == r) {
-            throw new RuntimeException("Could not determine a temporary directory");
+            final String exe_s = executable ? "executable " : "";
+            throw new RuntimeException("Could not determine a temporary "+exe_s+"directory");
         }
         final FilePermission fp = new FilePermission(r.getAbsolutePath(), "read,write,delete");
         SecurityUtil.checkPermission(fp);