https://bz.apache.org/bugzilla/show_bug.cgi?id=62329
Bug ID: 62329
Summary: AbstractArchiveResourceSet#listWebAppPaths does not
list directories if the zip central directory doesn't
have them
Product: Tomcat 9
Version: 9.0.7
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P2
Component: Catalina
Assignee: dev@tomcat.apache.org
Reporter: meelis.m...@gmail.com
Target Milestone: -----
Consider a jar containing
META-INF/resources/foo/bar.txt
META-INF/resources/foo/baz.txt
META-INF/resources/baz.txt
The following are two examples of valid zip central directory listings for the
above jar
A:
META-INF/
META-INF/resources/
META-INF/resources/foo/
META-INF/resources/foo/bar.txt
META-INF/resources/foo/baz.txt
META-INF/resources/baz.txt
B:
META-INF/resources/
META-INF/resources/foo/bar.txt
META-INF/resources/foo/baz.txt
META-INF/resources/baz.txt
In A case AbstractArchiveResourceSet#listWebAppPaths("/") will return ["/foo/",
"/baz.txt"]
In B case AbstractArchiveResourceSet#listWebAppPaths("/") will return
["/baz.txt"]
Considering the JavaDoc for WebResourceSet#listWebAppPaths states:
Obtain the Set of the web applications pathnames of *all* of the files and
*directories* located in the specified directory.
This means the implementation is faulty in the B case.
This bug caused an issue in JRebel when the following artifact was present:
https://mvnrepository.com/artifact/org.webjars.bowergithub.vaadin/vaadin-button/2.0.0-beta3
Resulting in the lookup for "/webjars/vaadin-button/src/vaadin-button.html" to
fail, as the central directory entry
"/META-INF/resources/webjars/vaadin-button/src/" was missing and code
eventually relied on listWebAppPaths to return the folder "src".
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