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markt-asf pushed a commit to branch 11.0.x
in repository https://gitbox.apache.org/repos/asf/tomcat.git


The following commit(s) were added to refs/heads/11.0.x by this push:
     new d9de433b49 More follow-up to o.a.c.realm code review
d9de433b49 is described below

commit d9de433b4900153ab0ca83a19c84f1b8e8706ebf
Author: Mark Thomas <[email protected]>
AuthorDate: Tue Jun 16 15:45:44 2026 +0100

    More follow-up to o.a.c.realm code review
    
    Looking at this again, returning null values makes no sense in the
    context Tomcat uses the list of values
---
 java/org/apache/catalina/realm/JNDIRealm.java | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/java/org/apache/catalina/realm/JNDIRealm.java 
b/java/org/apache/catalina/realm/JNDIRealm.java
index 06ba343d1e..f4c68eb4c9 100644
--- a/java/org/apache/catalina/realm/JNDIRealm.java
+++ b/java/org/apache/catalina/realm/JNDIRealm.java
@@ -2327,7 +2327,8 @@ public class JNDIRealm extends RealmBase {
                 Object value = e.next();
                 String valueString;
                 if (value == null) {
-                    valueString = null;
+                    // Where this is used (roles) it makes to sense to pass on 
null values
+                    continue;
                 } else if (value instanceof byte[]) {
                     valueString = new String((byte[]) value, 
StandardCharsets.UTF_8);
                 } else {


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