diff --git a/examples/pom.xml b/examples/pom.xml
index 86af586..17f2c7b 100644
--- a/examples/pom.xml
+++ b/examples/pom.xml
@@ -39,7 +39,7 @@
             <name>MIT license</name>
             <url>http://www.opensource.org/licenses/mit-license.php</url>
             <distribution>repo</distribution>
-            <comments>AngularJS, Bootstrap v3.3.7 (http://getbootstrap.com), 
+            <comments>AngularJS, Bootstrap v3.3.7 (http://getbootstrap.com),
                       jQuery Barcode plugin 0.3, KineticJS v4.7.1</comments>
         </license>
     </licenses>
@@ -53,7 +53,6 @@
 
     <modules>
         <module>assemblies</module>
-        <!--<module>bean-validation-webapp</module>-->
         <module>bookmark</module>
         <module>bookmark-em</module>
         <module>bookstore-webapp</module>
@@ -68,9 +67,7 @@
         <module>extended-wadl-webapp</module>
         <module>exception-mapping</module>
         <module>expect-100-continue-netty-client</module>
-        <!--<module>feed-combiner-java8-webapp</module>-->
         <module>freemarker-webapp</module>
-        <!--<module>flight-mgmt-webapp</module>-->
         <module>helloworld</module>
         <module>helloworld-benchmark</module>
         <module>helloworld-cdi2-se</module>
@@ -100,14 +97,12 @@
         <module>managed-client</module>
         <module>managed-client-webapp</module>
         <module>managed-client-simple-webapp</module>
-        <!--<module>monitoring-webapp</module>-->
         <module>multipart-webapp</module>
         <module>micrometer</module>
         <module>open-tracing</module>
         <module>osgi-helloworld-webapp</module>
         <module>osgi-http-service</module>
         <module>oauth-client-twitter</module>
-        <!--<module>oauth2-client-google-webapp</module>-->
         <module>reload</module>
         <module>rx-client-webapp</module>
         <module>server-async</module>
@@ -117,13 +112,10 @@
         <module>server-sent-events-jaxrs</module>
         <module>servlet3-webapp</module>
         <module>simple-console</module>
-        <!--<module>shortener-webapp</module>-->
-        <!--<module>sparklines</module>-->
         <module>sse-item-store-jersey-webapp</module>
         <module>sse-item-store-jaxrs-webapp</module>
         <module>sse-twitter-aggregator</module>
         <module>system-properties-example</module>
-        <!--<module>tone-generator</module>-->
         <module>webapp-example-parent</module>
         <module>xml-moxy</module>
     </modules>
diff --git a/examples/simple-console/src/main/java/org/glassfish/jersey/examples/console/resources/Colours.java b/examples/simple-console/src/main/java/org/glassfish/jersey/examples/console/resources/Colours.java
index 048349a..f3294ec 100644
--- a/examples/simple-console/src/main/java/org/glassfish/jersey/examples/console/resources/Colours.java
+++ b/examples/simple-console/src/main/java/org/glassfish/jersey/examples/console/resources/Colours.java
@@ -1,4 +1,5 @@
 /*
+ * Copyright (c) 2026 Contributors to the Eclipse Foundation.
  * Copyright (c) 2010, 2018 Oracle and/or its affiliates. All rights reserved.
  *
  * This program and the accompanying materials are made available under the
@@ -18,6 +19,7 @@
 import javax.ws.rs.QueryParam;
 
 import org.codehaus.jettison.json.JSONArray;
+import org.codehaus.jettison.json.JSONException;
 
 /**
  * A web resource for a list of colours.
@@ -48,10 +50,11 @@
      * @param filter If not empty, constrains the list of colours to only
      * those that contain this substring
      * @return the list of colours matching the filter
+     * @throws JSONException
      */
     @GET
     @Produces("application/json")
-    public JSONArray getColourListAsJSON(@QueryParam("match") String filter) {
+    public JSONArray getColourListAsJSON(@QueryParam("match") String filter) throws JSONException {
         return new JSONArray(getMatchingColours(filter));
     }
 
diff --git a/media/json-jettison/pom.xml b/media/json-jettison/pom.xml
index 7da7cfb..26f9465 100644
--- a/media/json-jettison/pom.xml
+++ b/media/json-jettison/pom.xml
@@ -80,6 +80,7 @@
         <dependency>
             <groupId>org.codehaus.jettison</groupId>
             <artifactId>jettison</artifactId>
+            <scope>compile</scope>
         </dependency>
 
         <dependency>
diff --git a/pom.xml b/pom.xml
index 0f1ed57..ceb1a83 100644
--- a/pom.xml
+++ b/pom.xml
@@ -1091,7 +1091,7 @@
                                 <additionalClasspathElement>${xdk.absolute.path}</additionalClasspathElement>
                             </additionalClasspathElements>
                             <classpathDependencyExcludes>
-                                <classpathDependencyExcludes>xerces:xercesImpl</classpathDependencyExcludes>
+                                <classpathDependencyExclude>xerces:xercesImpl</classpathDependencyExclude>
                             </classpathDependencyExcludes>
                         </configuration>
                     </plugin>
@@ -1774,6 +1774,7 @@
                 <groupId>org.codehaus.jettison</groupId>
                 <artifactId>jettison</artifactId>
                 <version>${jettison.version}</version>
+                <scope>provided</scope>
                 <exclusions>
                     <exclusion>
                         <groupId>stax</groupId>
@@ -2260,7 +2261,7 @@
         <javassist.version>3.30.2-GA</javassist.version>
         <jersey1.version>1.19.3</jersey1.version>
         <jersey1.last.final.version>${jersey1.version}</jersey1.last.final.version>
-        <jettison.version>1.3.7</jettison.version> <!-- TODO: 1.3.8 doesn't work; AbstractJsonTest complexBeanWithAttributes -->
+        <jettison.version>1.5.7</jettison.version>
         <jboss.vfs.version>3.3.2.Final</jboss.vfs.version>
         <jboss.vfs.jdk8.version>3.2.17.Final</jboss.vfs.jdk8.version>
         <jboss.logging.version>3.6.1.Final</jboss.logging.version>
diff --git a/tests/e2e-entity/pom.xml b/tests/e2e-entity/pom.xml
index 541df7f..dc5ce8c 100644
--- a/tests/e2e-entity/pom.xml
+++ b/tests/e2e-entity/pom.xml
@@ -92,6 +92,11 @@
             <scope>test</scope>
         </dependency>
         <dependency>
+            <groupId>org.codehaus.jettison</groupId>
+            <artifactId>jettison</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
             <groupId>org.glassfish.jersey.media</groupId>
             <artifactId>jersey-media-json-jackson1</artifactId>
             <version>${project.version}</version>
diff --git a/tests/e2e-entity/src/test/resources/org/glassfish/jersey/tests/e2e/json/entity/JettisonMappedJsonTestProvider_ComplexBeanWithAttributes.json b/tests/e2e-entity/src/test/resources/org/glassfish/jersey/tests/e2e/json/entity/JettisonMappedJsonTestProvider_ComplexBeanWithAttributes.json
index 4f8ff54..052e398 100644
--- a/tests/e2e-entity/src/test/resources/org/glassfish/jersey/tests/e2e/json/entity/JettisonMappedJsonTestProvider_ComplexBeanWithAttributes.json
+++ b/tests/e2e-entity/src/test/resources/org/glassfish/jersey/tests/e2e/json/entity/JettisonMappedJsonTestProvider_ComplexBeanWithAttributes.json
@@ -1 +1 @@
-{"complexBeanWithAttributes":{"@a2":"31415926","@a1":"hello dolly","filler1":111,"list":[{"@j":"bumper","@i":"312","@uri":"http://localhost:8080/jedna/bedna/","s1":"hi there"},{"@j":"bumper","@i":"312","@uri":"http://localhost:8080/jedna/bedna/","s1":"hi there"}],"filler2":222,"b":{"@j":"bumper","@i":"312","@uri":"http://localhost:8080/jedna/bedna/","s1":"hi there"}}}
\ No newline at end of file
+{"complexBeanWithAttributes":{"@a2":31415926,"@a1":"hello dolly","filler1":111,"list":[{"@j":"bumper","@i":312,"@uri":"http://localhost:8080/jedna/bedna/","s1":"hi there"},{"@j":"bumper","@i":312,"@uri":"http://localhost:8080/jedna/bedna/","s1":"hi there"}],"filler2":222,"b":{"@j":"bumper","@i":312,"@uri":"http://localhost:8080/jedna/bedna/","s1":"hi there"}}}
\ No newline at end of file
diff --git a/tests/e2e-entity/src/test/resources/org/glassfish/jersey/tests/e2e/json/entity/JettisonMappedJsonTestProvider_ComplexBeanWithAttributes2.json b/tests/e2e-entity/src/test/resources/org/glassfish/jersey/tests/e2e/json/entity/JettisonMappedJsonTestProvider_ComplexBeanWithAttributes2.json
index a738f36..d639cad 100644
--- a/tests/e2e-entity/src/test/resources/org/glassfish/jersey/tests/e2e/json/entity/JettisonMappedJsonTestProvider_ComplexBeanWithAttributes2.json
+++ b/tests/e2e-entity/src/test/resources/org/glassfish/jersey/tests/e2e/json/entity/JettisonMappedJsonTestProvider_ComplexBeanWithAttributes2.json
@@ -1 +1 @@
-{"complexBeanWithAttributes2":{"@a2":"31415926","@a1":"hello dolly","filler1":111,"list":[{"@uri":"http://localhost:8080/jedna/bedna/"},{"@uri":"http://localhost:8080/jedna/bedna/"}],"filler2":222,"b":{"@uri":"http://localhost:8080/jedna/bedna/"}}}
\ No newline at end of file
+{"complexBeanWithAttributes2":{"@a2":31415926,"@a1":"hello dolly","filler1":111,"list":[{"@uri":"http://localhost:8080/jedna/bedna/"},{"@uri":"http://localhost:8080/jedna/bedna/"}],"filler2":222,"b":{"@uri":"http://localhost:8080/jedna/bedna/"}}}
\ No newline at end of file
diff --git a/tests/e2e-entity/src/test/resources/org/glassfish/jersey/tests/e2e/json/entity/JettisonMappedJsonTestProvider_ComplexBeanWithAttributes2_MOXy.json b/tests/e2e-entity/src/test/resources/org/glassfish/jersey/tests/e2e/json/entity/JettisonMappedJsonTestProvider_ComplexBeanWithAttributes2_MOXy.json
index 457c937..586f9e7 100644
--- a/tests/e2e-entity/src/test/resources/org/glassfish/jersey/tests/e2e/json/entity/JettisonMappedJsonTestProvider_ComplexBeanWithAttributes2_MOXy.json
+++ b/tests/e2e-entity/src/test/resources/org/glassfish/jersey/tests/e2e/json/entity/JettisonMappedJsonTestProvider_ComplexBeanWithAttributes2_MOXy.json
@@ -1 +1 @@
-{"complexBeanWithAttributes2":{"@a1":"hello dolly","@a2":"31415926","filler1":111,"list":[{"@uri":"http://localhost:8080/jedna/bedna/"},{"@uri":"http://localhost:8080/jedna/bedna/"}],"filler2":222,"b":{"@uri":"http://localhost:8080/jedna/bedna/"}}}
\ No newline at end of file
+{"complexBeanWithAttributes2":{"@a1":"hello dolly","@a2":31415926,"filler1":111,"list":[{"@uri":"http://localhost:8080/jedna/bedna/"},{"@uri":"http://localhost:8080/jedna/bedna/"}],"filler2":222,"b":{"@uri":"http://localhost:8080/jedna/bedna/"}}}
\ No newline at end of file
diff --git a/tests/e2e-entity/src/test/resources/org/glassfish/jersey/tests/e2e/json/entity/JettisonMappedJsonTestProvider_ComplexBeanWithAttributes_MOXy.json b/tests/e2e-entity/src/test/resources/org/glassfish/jersey/tests/e2e/json/entity/JettisonMappedJsonTestProvider_ComplexBeanWithAttributes_MOXy.json
index 5b67d07..50cb27b 100644
--- a/tests/e2e-entity/src/test/resources/org/glassfish/jersey/tests/e2e/json/entity/JettisonMappedJsonTestProvider_ComplexBeanWithAttributes_MOXy.json
+++ b/tests/e2e-entity/src/test/resources/org/glassfish/jersey/tests/e2e/json/entity/JettisonMappedJsonTestProvider_ComplexBeanWithAttributes_MOXy.json
@@ -1 +1 @@
-{"complexBeanWithAttributes":{"@a1":"hello dolly","@a2":"31415926","filler1":111,"list":[{"@uri":"http://localhost:8080/jedna/bedna/","@i":"312","@j":"bumper","s1":"hi there"},{"@uri":"http://localhost:8080/jedna/bedna/","@i":"312","@j":"bumper","s1":"hi there"}],"filler2":222,"b":{"@uri":"http://localhost:8080/jedna/bedna/","@i":"312","@j":"bumper","s1":"hi there"}}}
\ No newline at end of file
+{"complexBeanWithAttributes":{"@a1":"hello dolly","@a2":31415926,"filler1":111,"list":[{"@uri":"http://localhost:8080/jedna/bedna/","@i":312,"@j":"bumper","s1":"hi there"},{"@uri":"http://localhost:8080/jedna/bedna/","@i":312,"@j":"bumper","s1":"hi there"}],"filler2":222,"b":{"@uri":"http://localhost:8080/jedna/bedna/","@i":312,"@j":"bumper","s1":"hi there"}}}
\ No newline at end of file
diff --git a/tests/e2e-entity/src/test/resources/org/glassfish/jersey/tests/e2e/json/entity/JettisonMappedJsonTestProvider_RegisterMessage.json b/tests/e2e-entity/src/test/resources/org/glassfish/jersey/tests/e2e/json/entity/JettisonMappedJsonTestProvider_RegisterMessage.json
index 308b42b..71eec0d 100644
--- a/tests/e2e-entity/src/test/resources/org/glassfish/jersey/tests/e2e/json/entity/JettisonMappedJsonTestProvider_RegisterMessage.json
+++ b/tests/e2e-entity/src/test/resources/org/glassfish/jersey/tests/e2e/json/entity/JettisonMappedJsonTestProvider_RegisterMessage.json
@@ -1 +1 @@
-{"registerMessage":{"@requestTime":"1234","@agentUID":"agentKocka"}}
\ No newline at end of file
+{"registerMessage":{"@requestTime":1234,"@agentUID":"agentKocka"}}
\ No newline at end of file
diff --git a/tests/e2e-entity/src/test/resources/org/glassfish/jersey/tests/e2e/json/entity/JettisonMappedJsonTestProvider_RegisterMessage_MOXy.json b/tests/e2e-entity/src/test/resources/org/glassfish/jersey/tests/e2e/json/entity/JettisonMappedJsonTestProvider_RegisterMessage_MOXy.json
index d288d49..e8f42c6 100644
--- a/tests/e2e-entity/src/test/resources/org/glassfish/jersey/tests/e2e/json/entity/JettisonMappedJsonTestProvider_RegisterMessage_MOXy.json
+++ b/tests/e2e-entity/src/test/resources/org/glassfish/jersey/tests/e2e/json/entity/JettisonMappedJsonTestProvider_RegisterMessage_MOXy.json
@@ -1 +1 @@
-{"registerMessage":{"@agentUID":"agentKocka","@requestTime":"1234"}}
\ No newline at end of file
+{"registerMessage":{"@agentUID":"agentKocka","@requestTime":1234}}
\ No newline at end of file
diff --git a/tests/e2e-entity/src/test/resources/org/glassfish/jersey/tests/e2e/json/entity/JettisonMappedJsonTestProvider_SimpleBeanWithAttributes.json b/tests/e2e-entity/src/test/resources/org/glassfish/jersey/tests/e2e/json/entity/JettisonMappedJsonTestProvider_SimpleBeanWithAttributes.json
index 09bb1f5..9e99fc4 100644
--- a/tests/e2e-entity/src/test/resources/org/glassfish/jersey/tests/e2e/json/entity/JettisonMappedJsonTestProvider_SimpleBeanWithAttributes.json
+++ b/tests/e2e-entity/src/test/resources/org/glassfish/jersey/tests/e2e/json/entity/JettisonMappedJsonTestProvider_SimpleBeanWithAttributes.json
@@ -1 +1 @@
-{"simpleBeanWithAttributes":{"@j":"bumper","@i":"312","@uri":"http://localhost:8080/jedna/bedna/","s1":"hi there"}}
\ No newline at end of file
+{"simpleBeanWithAttributes":{"@j":"bumper","@i":312,"@uri":"http://localhost:8080/jedna/bedna/","s1":"hi there"}}
\ No newline at end of file
diff --git a/tests/e2e-entity/src/test/resources/org/glassfish/jersey/tests/e2e/json/entity/JettisonMappedJsonTestProvider_SimpleBeanWithAttributes_MOXy.json b/tests/e2e-entity/src/test/resources/org/glassfish/jersey/tests/e2e/json/entity/JettisonMappedJsonTestProvider_SimpleBeanWithAttributes_MOXy.json
index 6be03ab..c492593 100644
--- a/tests/e2e-entity/src/test/resources/org/glassfish/jersey/tests/e2e/json/entity/JettisonMappedJsonTestProvider_SimpleBeanWithAttributes_MOXy.json
+++ b/tests/e2e-entity/src/test/resources/org/glassfish/jersey/tests/e2e/json/entity/JettisonMappedJsonTestProvider_SimpleBeanWithAttributes_MOXy.json
@@ -1 +1 @@
-{"simpleBeanWithAttributes":{"@uri":"http://localhost:8080/jedna/bedna/","@i":"312","@j":"bumper","s1":"hi there"}}
\ No newline at end of file
+{"simpleBeanWithAttributes":{"@uri":"http://localhost:8080/jedna/bedna/","@i":312,"@j":"bumper","s1":"hi there"}}
\ No newline at end of file
diff --git a/tests/e2e-server/pom.xml b/tests/e2e-server/pom.xml
index 1eabae1..f737504 100644
--- a/tests/e2e-server/pom.xml
+++ b/tests/e2e-server/pom.xml
@@ -211,6 +211,11 @@
             <version>${jetty.version}</version>
             <scope>test</scope>
         </dependency>
+        <dependency>
+            <groupId>org.codehaus.jettison</groupId>
+            <artifactId>jettison</artifactId>
+            <scope>test</scope>
+        </dependency>
 
         <dependency>
             <groupId>org.hamcrest</groupId>