On Fri, 29 May 2026 07:52:19 GMT, Xueming Shen <[email protected]> wrote:

> This fixes a regression from JDK-8377070 where `ImageResourcesTree` treated 
> every image entry path as a package hierarchy. That implicitly assumes 
> directory path segments cannot contain `.`, which is true for package paths 
> but not for ordinary resources such as 
> `META-INF/maven/com.google.code.findbugs/...`.
> 
> The fix handles non-preview `META-INF/` entries as resource paths, preserving 
> their directory names as-is and avoiding package inference for those 
> resources. `META-INF/preview/` continues to use the existing package-oriented 
> handling because those entries represent preview class/package content.
> 
> A regression test was added to `ImageReaderTest` with `META-INF` resources 
> containing dotted path segments, verifying resource lookup and directory 
> contents in both preview-enabled and preview-disabled modes.
> 
> This change was developed by @david-beaumont.
> 
> ---------
> - [x] I confirm that I make this contribution in accordance with the [OpenJDK 
> Interim AI Policy](https://openjdk.org/legal/ai).

src/jdk.jlink/share/classes/jdk/tools/jlink/internal/ImageResourcesTree.java 
line 252:

> 250:                         parentNode = 
> getDirectoryNode(resPath.substring(i + 1, j), parentNode);
> 251:                     }
> 252:                     new ResourceNode(resPath.substring(pathEnd + 1), 
> parentNode);

It appears we might still need the logic we have at line#285-293? 

                    String resourceName = resPath.substring(pathEnd + 1);
                    Node resourceNode = parentNode.getChildren(resourceName);
                    if (resourceNode == null) {
                        new ResourceNode(resourceName, parentNode);
                    } else if (!(resourceNode instanceof ResourceNode)) {
                        throw new InvalidTreeException(resourceNode);
                    }

otherwise we might mishandle the bad input like

/modfoo/META-INF/foo/bar.properties
/modfoo/META-INF/foo

-------------

PR Review Comment: https://git.openjdk.org/jdk/pull/31318#discussion_r3338010728

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