Handle IOException when retrieving file ownership on WSL2 network drives (#158)

* Fix WSL2 file ownership IOException handling
---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: slachiewicz <6705942+slachiewicz@users.noreply.github.com>

Author: Copilot

src/main/java/org/codehaus/plexus/components/io/attributes/FileAttributes.java

@@ -160,9 +160,16 @@ public FileAttributes(@Nonnull Path path, boolean followLinks) throws IOExceptio
         this.lastModifiedTime = (FileTime) attrs.get("lastModifiedTime");
     }
 
-    private static String getPrincipalName(Path path, String attribute) throws IOException {
-        Object owner = Files.getAttribute(path, attribute, LinkOption.NOFOLLOW_LINKS);
-        return ((Principal) owner).getName();
+    @Nullable
+    private static String getPrincipalName(Path path, String attribute) {
+        try {
+            Object owner = Files.getAttribute(path, attribute, LinkOption.NOFOLLOW_LINKS);
+            return ((Principal) owner).getName();
+        } catch (IOException e) {
+            // Some file systems (e.g., WSL2 mapped network drives) don't provide ownership information
+            // Return null instead of propagating the exception
+            return null;
+        }
     }
 
     public FileAttributes(

src/test/java/org/codehaus/plexus/components/io/attributes/FileAttributesTest.java

@@ -17,6 +17,8 @@
  */
 
 import java.io.File;
+import java.io.IOException;
+import java.nio.file.Files;
 
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.condition.DisabledOnOs;
@@ -35,4 +37,20 @@ void testGetPosixFileAttributes() throws Exception {
         PlexusIoResourceAttributes fa = new FileAttributes(file);
         assertNotNull(fa);
     }
+
+    @Test
+    void testFileAttributesHandlesIOException() throws IOException {
+        // Test that FileAttributes can be constructed for a regular file
+        // even if ownership information is not available (e.g., WSL2 mapped network drives)
+        File tempFile = Files.createTempFile("plexus-io-test", ".tmp").toFile();
+        try {
+            // This should not throw even if ownership info is unavailable
+            PlexusIoResourceAttributes fa = new FileAttributes(tempFile);
+            assertNotNull(fa);
+            // The attributes object should be usable even if userName/groupName are null
+            assertNotNull(fa.toString());
+        } finally {
+            tempFile.delete();
+        }
+    }
 }