[GR-43605] Fix: NativeImageResourcePath#toUri issue.

PullRequest: graal/13635

Author: jovanstevanovic

substratevm/src/com.oracle.svm.core/src/com/oracle/svm/core/jdk/resources/NativeImageResourcePath.java

@@ -391,9 +391,7 @@ public URI toUri() {
         try {
             return new URI(
                             "resource",
-                            fileSystem.getResourcePath().toUri() +
-                                            "!" +
-                                            fileSystem.getString(toAbsolutePath().path),
+                            fileSystem.getString(toAbsolutePath().path),
                             null);
         } catch (URISyntaxException e) {
             throw new AssertionError(e);

substratevm/src/com.oracle.svm.test/src/com/oracle/svm/test/NativeImageResourceFileSystemProviderTest.java

@@ -160,6 +160,32 @@ public void githubIssue5080() {
         }
     }
 
+    /**
+     * Test native implementations of {@link Path#toUri()} and {@link Path#of(URI)}. Inspired by
+     * issue: <a href="https://github.com/oracle/graal/issues/5720">5720</a>
+     */
+    @Test
+    public void githubIssue5720() {
+        URI uri1 = resourceNameToURI(RESOURCE_FILE_1, true);
+        Assert.assertNotNull(uri1);
+
+        Path path1 = Path.of(uri1);
+        Assert.assertNotNull(path1);
+
+        URI uri2 = path1.toUri();
+        Assert.assertNotNull(uri2);
+
+        Path path2 = Path.of(uri2);
+        Assert.assertNotNull(path2);
+
+        Assert.assertEquals(path1, path2);
+        try {
+            Assert.assertTrue(Files.isSameFile(path1, path2));
+        } catch (IOException e) {
+            Assert.fail("IOException occurred during file system operation.");
+        }
+    }
+
     /**
      * Reading from file using {@link java.nio.channels.ByteChannel}.
      */