8325576: java/lang/ProcessHandle/InfoTest.java fails on systems with coreutils with --enable-single-binary

test/jdk/java/lang/ProcessHandle/InfoTest.java

@@ -292,14 +292,13 @@ public static void test3() {
                 if (info.command().isPresent()) {
                     String command = info.command().get();
                     String expected = "sleep";
-
                     if (Platform.isWindows()) {
                         expected = "sleep.exe";
                     } else if (Platform.isBusybox("/bin/sleep")) {
                         // With busybox sleep is just a sym link to busybox.
                         // The busbox executable is seen as ProcessHandle.Info command.
                         expected = "busybox";
-                    } else if (Platform.isCoreutilsSingleExecutable("sleep")) {
+                    } else if (Platform.isCoreutilsSingleExecutable()) {
                         // With coreutils single executable sleep is just a script around coreutils.
                         // The coreutils executable is seen as ProcessHandle.Info command.
                         expected = "/usr/bin/coreutils";

test/lib/jdk/test/lib/Platform.java

@@ -125,21 +125,10 @@ public static boolean isBusybox(String tool) {
         }
     }
 
-    public static boolean isCoreutilsSingleExecutable(String tool) {
-        try {
-            ProcessBuilder pb = new ProcessBuilder("coreutils", "--help");
-            pb.redirectErrorStream(true);
-            Process p = pb.start();
-            BufferedReader b = new BufferedReader(new InputStreamReader(p.getInputStream()));
-            String line;
-            while ((line = b.readLine()) != null) {
-                if (line.contains(tool)) {
-                    return true;
-                }
-            }
-        } catch(Exception e) {
-        }
-        return false;
+    public static boolean isCoreutilsSingleExecutable() {
+        // If more distrobutions start using --enable-single-binary with coreutils
+        // additional path checks may be required.
+        return Paths.exist("/usr/bin/coreutils");
     }
 
     public static boolean isOSX() {