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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 b761e225f5 Regression for BZ 68721 - report correct exception
b761e225f5 is described below

commit b761e225f51733ed06a8b087f5798e91f0d47714
Author: Mark Thomas <ma...@apache.org>
AuthorDate: Tue Jun 11 17:26:54 2024 +0100

    Regression for BZ 68721 - report correct exception
    
    Some instances of LinkageError were incorrectly reported as
    ClassNotFoundException
---
 java/org/apache/catalina/loader/WebappClassLoaderBase.java | 4 ++++
 webapps/docs/changelog.xml                                 | 5 +++++
 2 files changed, 9 insertions(+)

diff --git a/java/org/apache/catalina/loader/WebappClassLoaderBase.java 
b/java/org/apache/catalina/loader/WebappClassLoaderBase.java
index 2cc22958bf..553cd7a64e 100644
--- a/java/org/apache/catalina/loader/WebappClassLoaderBase.java
+++ b/java/org/apache/catalina/loader/WebappClassLoaderBase.java
@@ -2300,6 +2300,10 @@ public abstract class WebappClassLoaderBase extends 
URLClassLoader
                     // Re-throw the original exception
                     throw e;
                 }
+                if (clazz == null) {
+                    // Not BZ 68721
+                    throw e;
+                }
             }
             entry.loadedClass = clazz;
         }
diff --git a/webapps/docs/changelog.xml b/webapps/docs/changelog.xml
index 611c596507..bb20f254ea 100644
--- a/webapps/docs/changelog.xml
+++ b/webapps/docs/changelog.xml
@@ -135,6 +135,11 @@
         for retrieving extended/additional information from an established
         GSS context. (michaelo)
       </add>
+      <fix>
+        Correct a regression in the fix for <bug>68721</bug> that caused some
+        instances of <code>LinkageError</code> to be reported as
+        <code>ClassNotFoundException</code>. (markt)
+      </fix>
     </changelog>
   </subsection>
   <subsection name="Coyote">


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