[JENKINS-75278] User pages for users with '\' in the user name fail after upgrading to 2.479.1

pom.xml

@@ -97,7 +97,7 @@ THE SOFTWARE.
     <bridge-method-injector.version>1.30</bridge-method-injector.version>
     <spotless.check.skip>false</spotless.check.skip>
     <!-- Make sure to keep the jetty-ee9-maven-plugin version in war/pom.xml in sync with the Jetty release in Winstone: -->
-    <winstone.version>8.4</winstone.version>
+    <winstone.version>8.5</winstone.version>
     <node.version>20.18.3</node.version>
   </properties>
 

test/pom.xml

@@ -178,7 +178,7 @@ THE SOFTWARE.
     <dependency>
       <groupId>org.jenkins-ci.main</groupId>
       <artifactId>jenkins-test-harness</artifactId>
-      <version>2411.v1e79b_0dc94b_7</version>
+      <version>2414.v185474555e66</version>
       <scope>test</scope>
       <exclusions>
         <exclusion>

test/src/test/java/hudson/PluginTest.java

@@ -54,7 +54,7 @@ public class PluginTest {
         r.createWebClient().assertFails("plugin/matrix-auth/images/%2e%2e%2fWEB-INF/licenses.xml", HttpServletResponse.SC_BAD_REQUEST);
         r.createWebClient().assertFails("plugin/matrix-auth/images/%2e.%2fWEB-INF/licenses.xml", HttpServletResponse.SC_BAD_REQUEST);
         r.createWebClient().assertFails("plugin/matrix-auth/images/..%2f..%2f..%2f" + r.jenkins.getRootDir().getName() + "%2fsecrets%2fmaster.key", HttpServletResponse.SC_BAD_REQUEST);
-        r.createWebClient().assertFails("plugin/matrix-auth/" + r.jenkins.getRootDir() + "/secrets/master.key", /* ./ prepended anyway */ Functions.isWindows() ? HttpServletResponse.SC_BAD_REQUEST : HttpServletResponse.SC_NOT_FOUND);
+        r.createWebClient().assertFails("plugin/matrix-auth/" + r.jenkins.getRootDir() + "/secrets/master.key", /* ./ prepended anyway */ HttpServletResponse.SC_NOT_FOUND);
         // SECURITY-155:
         r.createWebClient().assertFails("plugin/matrix-auth/WEB-INF/licenses.xml", HttpServletResponse.SC_BAD_REQUEST);
         r.createWebClient().assertFails("plugin/matrix-auth/META-INF/MANIFEST.MF", HttpServletResponse.SC_BAD_REQUEST);

test/src/test/java/hudson/model/DirectoryBrowserSupportTest.java

@@ -151,13 +151,8 @@ public void doubleDots2() throws Exception {
 
         try (JenkinsRule.WebClient wc = j.createWebClient()) {
             // normal path provided by the UI succeeds
-            wc.goTo("job/" + p.getName() + "/ws/abc/def.bin", "application/octet-stream");
-
-            // suspicious path is rejected with 400
-            wc.setThrowExceptionOnFailingStatusCode(false);
-            HtmlPage page = wc.goTo("job/" + p.getName() + "/ws/abc%5Cdef.bin");
-            assertEquals(400, page.getWebResponse().getStatusCode());
-            assertEquals("Error 400 Suspicious Path Character", page.getTitleText());
+            Page page = wc.goTo("job/" + p.getName() + "/ws/abc%5Cdef.bin", "application/octet-stream");
+            assertEquals(200, page.getWebResponse().getStatusCode());
         }
     }
 
@@ -1117,11 +1112,9 @@ public void windows_cannotViewAbsolutePath() throws Exception {
         Files.writeString(targetTmpPath, content, StandardCharsets.UTF_8);
 
         try (JenkinsRule.WebClient wc = j.createWebClient()) {
-            // suspicious path is rejected with 400
             wc.setThrowExceptionOnFailingStatusCode(false);
             HtmlPage page = wc.goTo("userContent/" + targetTmpPath.toAbsolutePath() + "/*view*");
-            assertEquals(400, page.getWebResponse().getStatusCode());
-            assertEquals("Error 400 Suspicious Path Character", page.getTitleText());
+            assertEquals(404, page.getWebResponse().getStatusCode());
         }
     }
 

war/pom.xml

@@ -647,7 +647,7 @@ THE SOFTWARE.
       <plugin>
         <groupId>org.eclipse.jetty.ee9</groupId>
         <artifactId>jetty-ee9-maven-plugin</artifactId>
-        <version>12.0.16</version>
+        <version>12.0.17</version>
         <configuration>
           <!--
             Reload webapp when you hit ENTER. (See JETTY-282 for more)