Retain and modernize required browser and packaged WAR coverage

.github/workflows/build.yaml

@@ -66,6 +66,7 @@ jobs:
           **/target/surefire-reports/
           **/target/failsafe-reports/
           **/target/jsp-engine/
+          jakarta-test/target/packaged-war.log
 
   esapi-compatibility:
     name: ESAPI ${{ matrix.esapi-version }}

jakarta-test/README.md

@@ -0,0 +1,88 @@
+# Required browser and packaged WAR fixture
+
+This optional application is a test fixture, not a dependency of an encoder
+library. From the repository root, with JDK 17, Maven and Docker available:
+
+```sh
+mvn -B -ntp -Dmaven.repo.local=/tmp/encoder-browser-m2 clean verify -PtestJakarta
+```
+
+Use an empty task-specific Maven directory for fresh validation. The reactor
+packages the matching encoder JARs without installing them. CI requires this
+profile in the `Java CI gate`; unavailable Docker is a failure, not a skipped or
+advisory test. CI also compares the JAR inside the WAR byte-for-byte with the
+reactor's Jakarta adapter.
+
+## Coverage decision (#93)
+
+Retain the browser fixture. The Docker-free [Jasper tests](../compatibility/jsp-engine/README.md)
+cover every packaged basic/advanced tag and EL binding, coercions, output bytes,
+and invalid JSP translation. They cannot replace these browser assertions:
+
+- `ItemControllerTest`: JSP/JSTL startup, tag and EL output interpreted as text in
+  actual DOM cells, no injected script elements, standards-mode HTML.
+- `JavaScriptTemplateTest`: all four JavaScript encoders through quoted strings
+  and ordinary template literals, interpolation boundaries, HTML script and
+  event-attribute parsing, controls and lone surrogates through UTF-8, and the
+  explicitly unsupported raw-template round-trip behavior.
+- `PackagedWarIT`: launches `java -jar` on the finished executable WAR on a
+  random loopback port, renders both packaged views, checks exact encoded cell
+  content, and confirms JSTL API/implementation and adapter JARs are packaged.
+  It terminates the server even on failure. This test needs no Docker.
+
+Browser sessions and containers are explicitly closed in `AfterAll` with
+`finally` cleanup. Video recording is disabled, so no unused recorder image is
+started. Surefire/Failsafe output and `target/packaged-war.log` are retained by CI.
+A local Chrome-only diagnostic for the JavaScript suite remains available with
+`-Dencoder.browser.local=true -Dtest=JavaScriptTemplateTest`; it is not the CI gate.
+
+## Framework and API boundaries
+
+As reviewed on 2026-09-25, this fixture uses supported Spring Boot **4.1.1** and
+its managed dependencies, on JDK **17**, with Tomcat/Jasper **11.0.26**
+(Servlet **6.1**, Pages **4.0**, EL **6.0**). The two deliberate BOM overrides are
+Tomcat 11.0.26, which contains the September fixes absent from Boot's managed
+11.0.24, and Selenium 4.49.0, aligned with the current reviewed browser image.
+Testcontainers **2.0.5**, JSTL API **3.0.2** and implementation **3.0.1** follow the
+Boot BOM. The standalone Servlet/Pages/EL API JARs are removed; Tomcat supplies
+the coherent implementation/API set. Both JSTL components remain packaged.
+The unused JSON starter, empty test configuration/launcher, and unused service
+mutation scaffold are removed.
+
+See the [Boot support policy](https://github.com/spring-projects/spring-boot/wiki/Supported-Versions),
+[system requirements](https://docs.spring.io/spring-boot/system-requirements.html),
+[Spring advisories](https://spring.io/security/), and
+[Tomcat 11 advisories](https://tomcat.apache.org/security-11.html).
+An OSV query of the 34 resolved third-party JAR coordinates in the packaged WAR
+(including provided container libraries) returned no advisories on 2026-09-25.
+That dated result excludes container OS packages, build plugins and test-only
+JARs; it is not a permanent or repository-wide clean bill.
+Recheck these sources and the resolved dependency graph with each upgrade and
+before release. Do not copy these fixture requirements into library support claims.
+The published adapters retain Java 8 and their existing provided APIs. The
+separate javax/Jakarta engines and Java 8/11/17/21/25 packaged consumers still
+exercise older contracts. OSGi's conservative Pages import range is unchanged;
+this Boot application is not an OSGi container test.
+
+## Container provenance and updates
+
+`BrowserFixture.java` and test-only `testcontainers.properties` contain immutable
+multi-platform index digests fetched from Docker Hub's registry and verified
+against the SHA-256 of each manifest response on 2026-09-25:
+
+| Use | Reviewed tag | Index SHA-256 |
+| --- | --- | --- |
+| Browser | `selenium/standalone-chrome:4.49.0-20260909` | `7efe71e7e4a83bdf574b26bd354690928075e8f443223d2ced16a2c208eae1d7` |
+| Cleanup | `testcontainers/ryuk:0.14.0` | `7c1a8a9a47c780ed0f983770a662f80deb115d95cce3e2daa3d12115b8cd28f0` |
+| Host-port forwarding | `testcontainers/sshd:1.3.0` | `c50c0f59554dcdb2d9e5e705112144428ae9d04ac0af6322b365a18e24213a6a` |
+| Docker startup probe | `alpine:3.24.2` | `294b683cb724975bec92580e1e685676bd4b50bda910ddb8c51d4cabeaec77e6` |
+
+The [Selenium release](https://github.com/SeleniumHQ/docker-selenium/releases/tag/4.49.0-20260909)
+and [Testcontainers 2.0.5 source](https://github.com/testcontainers/testcontainers-java/tree/2.0.5)
+control the browser/helper choices. The startup probe uses maintained Alpine
+instead of the old default 3.17. Digest pins provide immutable identity, not a
+claim that an image contains no vulnerabilities. Review publisher release notes,
+image scan results and all helper versions when updating. Keep the Selenium
+client and image aligned, update the tag and digest together, verify the manifest
+hash/platforms again, and run the full required profile before merging. These
+source/property pins require manual review; Maven Dependabot does not update them.

jakarta-test/pom.xml

@@ -5,7 +5,7 @@
     <parent>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-parent</artifactId>
-        <version>3.5.16</version>
+        <version>4.1.1</version>
         <relativePath/> <!-- lookup parent from repository -->
     </parent>
     <groupId>org.owasp.encoder.testing</groupId>
@@ -16,6 +16,10 @@
     <description>Test for OWASP encoder jakarta JSP</description>
     <properties>
         <java.version>17</java.version>
+        <!-- September security fixes, newer than Boot 4.1.1's managed 11.0.24. -->
+        <tomcat.version>11.0.26</tomcat.version>
+        <!-- Keep the client aligned with the reviewed, digest-pinned browser image. -->
+        <selenium.version>4.49.0</selenium.version>
         <!-- Must equal the version in the root pom.xml so this app tests the
              encoder-jakarta-jsp built in the same reactor. CI checks this. -->
         <encoder.version>1.5.0-SNAPSHOT</encoder.version>
@@ -28,7 +32,14 @@
         </dependency>
         <dependency>
             <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-web</artifactId>
+            <artifactId>spring-boot-starter-webmvc</artifactId>
+            <!-- This fixture renders JSPs; it has no JSON endpoints. -->
+            <exclusions>
+                <exclusion>
+                    <groupId>org.springframework.boot</groupId>
+                    <artifactId>spring-boot-starter-jackson</artifactId>
+                </exclusion>
+            </exclusions>
         </dependency>
         <dependency>
             <groupId>org.apache.tomcat.embed</groupId>
@@ -40,25 +51,14 @@
             <artifactId>spring-boot-starter-tomcat</artifactId>
             <scope>provided</scope>
         </dependency>
-        <dependency>
-            <groupId>jakarta.servlet</groupId>
-            <artifactId>jakarta.servlet-api</artifactId>
-            <scope>provided</scope>
-        </dependency>
-        <dependency>
-            <groupId>jakarta.servlet.jsp</groupId>
-            <artifactId>jakarta.servlet.jsp-api</artifactId>
-            <version>3.1.0</version>
-            <scope>provided</scope>
-        </dependency>
         <dependency>
             <groupId>jakarta.servlet.jsp.jstl</groupId>
             <artifactId>jakarta.servlet.jsp.jstl-api</artifactId>
-        </dependency>
-        <dependency>
-            <groupId>jakarta.el</groupId>
-            <artifactId>jakarta.el-api</artifactId>
-            <version>5.0.1</version>
+            <exclusions>
+                <!-- Jasper supplies these APIs; JSTL's older transitive copies must not enter WEB-INF/lib. -->
+                <exclusion><groupId>jakarta.el</groupId><artifactId>jakarta.el-api</artifactId></exclusion>
+                <exclusion><groupId>jakarta.servlet</groupId><artifactId>jakarta.servlet-api</artifactId></exclusion>
+            </exclusions>
         </dependency>
         <dependency>
             <groupId>org.glassfish.web</groupId>
@@ -70,14 +70,9 @@
             <artifactId>spring-boot-starter-test</artifactId>
             <scope>test</scope>
         </dependency>
-        <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-testcontainers</artifactId>
-            <scope>test</scope>
-        </dependency>
         <dependency>
             <groupId>org.testcontainers</groupId>
-            <artifactId>selenium</artifactId>
+            <artifactId>testcontainers-selenium</artifactId>
             <scope>test</scope>
         </dependency>
         <dependency>
@@ -90,16 +85,25 @@
             <artifactId>selenium-chrome-driver</artifactId>
             <scope>test</scope>
         </dependency>
-        <dependency>
-            <groupId>org.testcontainers</groupId>
-            <artifactId>junit-jupiter</artifactId>
-            <scope>test</scope>
-        </dependency>
     </dependencies>
 
     <build>
         <finalName>jakarta-test</finalName>
         <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-failsafe-plugin</artifactId>
+                <configuration>
+                    <systemPropertyVariables>
+                        <fixture.war>${project.build.directory}/${project.build.finalName}.war</fixture.war>
+                    </systemPropertyVariables>
+                </configuration>
+                <executions>
+                    <execution>
+                        <goals><goal>integration-test</goal><goal>verify</goal></goals>
+                    </execution>
+                </executions>
+            </plugin>
             <plugin>
                 <groupId>org.springframework.boot</groupId>
                 <artifactId>spring-boot-maven-plugin</artifactId>

jakarta-test/src/main/java/org/owasp/encoder/testing/jakarta_test/controller/ItemController.java

@@ -1,6 +1,7 @@
 package org.owasp.encoder.testing.jakarta_test.controller;
 
-import org.owasp.encoder.testing.jakarta_test.service.ItemService;
+import java.util.List;
+import org.owasp.encoder.testing.jakarta_test.dto.Item;
 import org.springframework.stereotype.Controller;
 import org.springframework.ui.Model;
 import org.springframework.web.bind.annotation.GetMapping;
@@ -14,15 +15,13 @@
 @RequestMapping("/item")
 public class ItemController {
 
-    private final ItemService itemService;
-
-    public ItemController(ItemService itemService) {
-        this.itemService = itemService;
-    }
+    private static final List<Item> ITEMS = List.of(
+        new Item(1, "menu", "blob"),
+        new Item(2, "top<script>alert(1)</script>", "fancy <script>alert(1)</script>"));
 
     @GetMapping("/viewItems")
     public String viewItems(Model model) {
-        model.addAttribute("items", itemService.getItems());
+        model.addAttribute("items", ITEMS);
         return "view-items";
     }
 }

jakarta-test/src/main/java/org/owasp/encoder/testing/jakarta_test/dto/Item.java

@@ -1,77 +1,18 @@
 package org.owasp.encoder.testing.jakarta_test.dto;
 
-/**
- *
- * @author jeremy
- */
-public class Item {
-
-    private int id;
-
-    private String name;
-
-    private String description;
-
-    public Item() {
-    }
+/** Immutable values exposed as bean properties to JSP EL. */
+public final class Item {
+    private final int id;
+    private final String name;
+    private final String description;
 
     public Item(int id, String name, String description) {
         this.id = id;
         this.name = name;
         this.description = description;
     }
 
-    /**
-     * Get the value of id
-     *
-     * @return the value of id
-     */
-    public int getId() {
-        return id;
-    }
-
-    /**
-     * Set the value of id
-     *
-     * @param id new value of id
-     */
-    public void setId(int id) {
-        this.id = id;
-    }
-
-    /**
-     * Get the value of name
-     *
-     * @return the value of name
-     */
-    public String getName() {
-        return name;
-    }
-
-    /**
-     * Set the value of name
-     *
-     * @param name new value of name
-     */
-    public void setName(String name) {
-        this.name = name;
-    }
-
-        /**
-     * Get the value of description
-     *
-     * @return the value of description
-     */
-    public String getDescription() {
-        return description;
-    }
-
-    /**
-     * Set the value of description
-     *
-     * @param description new value of description
-     */
-    public void setDescription(String description) {
-        this.description = description;
-    }
+    public int getId() { return id; }
+    public String getName() { return name; }
+    public String getDescription() { return description; }
 }

jakarta-test/src/main/webapp/WEB-INF/jsp/index.jsp

@@ -1,4 +1,5 @@
-<%@page contentType="text/html" pageEncoding="UTF-8"%>
+<%@page session="false" contentType="text/html" pageEncoding="UTF-8"%>
+<%@taglib prefix="c" uri="jakarta.tags.core"%>
 <!DOCTYPE html>
 <html>
     <head>
@@ -7,6 +8,6 @@
     </head>
     <body>
         <h1>Hello World!</h1>
-        You are likely looking for the test page located <a href="/jakarta-test/item/viewItems">here</a>.
+        You are likely looking for the test page located <a href="<c:url value="/item/viewItems"/>">here</a>.
     </body>
 </html>

jakarta-test/src/main/webapp/WEB-INF/jsp/view-items.jsp

@@ -1,6 +1,7 @@
-<%@page contentType="text/html;charset=UTF-8" language="java"%>
+<%@page session="false" contentType="text/html;charset=UTF-8" language="java"%>
 <%@taglib prefix="c" uri="jakarta.tags.core"%>
 <%@taglib prefix="e" uri="owasp.encoder.jakarta"%>
+<!DOCTYPE html>
 <html>
     <head>
         <title>View Items</title>