Fix a case-sensitive issue with ProcessUtil.pathOfCommand(Path path) on Windows

Author: Eng-Fouad

process/src/main/java/io/smallrye/common/process/ProcessUtil.java

@@ -1,6 +1,7 @@
 package io.smallrye.common.process;
 
 import java.io.File;
+import java.io.IOException;
 import java.nio.charset.Charset;
 import java.nio.charset.UnsupportedCharsetException;
 import java.nio.file.Files;
@@ -96,6 +97,14 @@ public static Optional<Path> pathOfCommand(Path path) {
                 for (String ext : Windows.pathExt) {
                     Path execPathExt = execPath.getParent().resolve(execPath.getFileName() + ext);
                     if (Files.isExecutable(execPathExt)) {
+                        // This will ensure we get the case-sensitive real path.
+                        // e.g., C:\Program Files\Docker\Docker\resources\bin\docker.EXE becomes
+                        // C:\Program Files\Docker\Docker\resources\bin\docker.exe
+                        try {
+                            execPathExt = execPathExt.toRealPath();
+                        } catch (IOException e) {
+                            throw new RuntimeException(e);
+                        }
                         return Optional.of(execPathExt);
                     }
                 }