(kafka) branch 3.9 updated: MINOR: Use SHA256withRSA instead of SHA1withRSA when running SslTransportLayerTest (#20961)

[chia7712]

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chia7712 pushed a commit to branch 3.9
in repository https://gitbox.apache.org/repos/asf/kafka.git


The following commit(s) were added to refs/heads/3.9 by this push:
     new d251ec045f2 MINOR: Use SHA256withRSA instead of SHA1withRSA when 
running SslTransportLayerTest (#20961)
d251ec045f2 is described below

commit d251ec045f200c8fa48d44a1b27408b320161f8b
Author: Ming-Yen Chung <mingyen...@gmail.com>
AuthorDate: Sun Nov 23 02:27:36 2025 +0800

    MINOR: Use SHA256withRSA instead of SHA1withRSA when running 
SslTransportLayerTest (#20961)
    
    `SHA1withRSA` is disabled in some linux distribution, such as Fedora 43
    server, which results in the following error. Hence, this PR adopts the
    solution suggested by @gaurav-narula in
    https://github.com/apache/kafka/pull/20561#issuecomment-3378701638,
    which is to use `SHA256withRSA` instead of `SHA1withRSA`
    
    ```
    Gradle Test Run :clients:test > Gradle Test Executor 28 > 
Tls13SslFactoryTest > testSslFactoryConfiguration() FAILED
        org.apache.kafka.common.config.ConfigException: Invalid value 
javax.net.ssl.SSLHandshakeException: (handshake_failure) No available 
authentication scheme for configuration A client SSLEngine created with the 
provided settings can't connect to a server SSLEngine created with those 
settings.
            at 
app//org.apache.kafka.common.security.ssl.SslFactory.configure(SslFactory.java:105)
            at 
app//org.apache.kafka.common.security.ssl.SslFactoryTest.testSslFactoryConfiguration(SslFactoryTest.java:80)
            at java.base@21.0.9/java.lang.reflect.Method.invoke(Method.java:580)
            at java.base@21.0.9/java.util.ArrayList.forEach(ArrayList.java:1596)
            at java.base@21.0.9/java.util.ArrayList.forEach(ArrayList.java:1596)
    ```
    
    Reviewers: Chia-Ping Tsai <chia7...@gmail.com>
---
 clients/src/test/java/org/apache/kafka/test/TestSslUtils.java | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/clients/src/test/java/org/apache/kafka/test/TestSslUtils.java 
b/clients/src/test/java/org/apache/kafka/test/TestSslUtils.java
index 72a1ccfe651..39544e2b154 100644
--- a/clients/src/test/java/org/apache/kafka/test/TestSslUtils.java
+++ b/clients/src/test/java/org/apache/kafka/test/TestSslUtils.java
@@ -111,7 +111,7 @@ public class TestSslUtils {
      * @param dn the X.509 Distinguished Name, eg "CN=Test, L=London, C=GB"
      * @param pair the KeyPair
      * @param days how many days from now the Certificate is valid for, or - 
for negative values - how many days before now
-     * @param algorithm the signing algorithm, eg "SHA1withRSA"
+     * @param algorithm the signing algorithm, eg "SHA256withRSA"
      * @return the self-signed certificate
      * @throws CertificateException thrown if a security error or an IO error 
occurred.
      */
@@ -132,7 +132,7 @@ public class TestSslUtils {
      *        CA.
      * @param parentKeyPair The key pair of the issuer. Leave null if you want 
to generate a root
      *        CA.
-     * @param algorithm the signing algorithm, eg "SHA1withRSA"
+     * @param algorithm the signing algorithm, eg "SHA256withRSA"
      * @return the signed certificate
      * @throws CertificateException
      */
@@ -399,7 +399,7 @@ public class TestSslUtils {
         private byte[] subjectAltName;
 
         public CertificateBuilder() {
-            this(30, "SHA1withRSA");
+            this(30, "SHA256withRSA");
         }
 
         public CertificateBuilder(int days, String algorithm) {