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markt pushed a commit to branch 9.0.x
in repository https://gitbox.apache.org/repos/asf/tomcat.git


The following commit(s) were added to refs/heads/9.0.x by this push:
     new f06f42a986 Fix BZ 69615 - clear "not found" cache if external 
repository is added
f06f42a986 is described below

commit f06f42a986563c35dbe443157286832791c95dcd
Author: Mark Thomas <ma...@apache.org>
AuthorDate: Wed Mar 19 20:26:18 2025 +0000

    Fix BZ 69615 - clear "not found" cache if external repository is added
---
 java/org/apache/catalina/loader/WebappClassLoaderBase.java | 2 ++
 webapps/docs/changelog.xml                                 | 6 ++++++
 2 files changed, 8 insertions(+)

diff --git a/java/org/apache/catalina/loader/WebappClassLoaderBase.java 
b/java/org/apache/catalina/loader/WebappClassLoaderBase.java
index 0c138e8a3e..7754d203be 100644
--- a/java/org/apache/catalina/loader/WebappClassLoaderBase.java
+++ b/java/org/apache/catalina/loader/WebappClassLoaderBase.java
@@ -2544,6 +2544,8 @@ public abstract class WebappClassLoaderBase extends 
URLClassLoader
     protected void addURL(URL url) {
         super.addURL(url);
         hasExternalRepositories = true;
+        // Clear the not found resources as they may now be available at the 
added URL.
+        notFoundClassResources.clear();
     }
 
 
diff --git a/webapps/docs/changelog.xml b/webapps/docs/changelog.xml
index 858f0ae2f2..46f6be7768 100644
--- a/webapps/docs/changelog.xml
+++ b/webapps/docs/changelog.xml
@@ -126,6 +126,12 @@
         Fix invocation of the FFM OpenSSL code for setting a SSL engine and
         FIPS mode. (remm)
       </fix>
+      <fix>
+        <bug>69615</bug>: Improve integration with the not found class 
resources
+        cache for users who are using a custom web application class loader
+        and/or using reflection to dynamically add external repositories to the
+        web application class loader. (markt)
+      </fix>
     </changelog>
   </subsection>
   <subsection name="Coyote">


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