springbootdemo-wildfly: apply Gemini review fixes

jboss-web.xml: replace obsolete JBoss AS 5 DOCTYPE/DTD declaration with the
modern WildFly 32+ Jakarta EE schema (jboss-web_15_1.xsd, urn:jboss:jakartaee:1.0).
The old jboss-web_5_0.dtd is from JBoss AS 5 (2008); WildFly parses it via
backward-compat but the schema mismatch produces spurious validation warnings.

Axis2WebAppInitializer: downgrade axis2.repository.path log from WARN to INFO.
Setting the repository path is a normal startup step, not a warning condition.
Using WARN would cause log-scanning tools to flag it on every deployment.

Not fixed (by design):
- Duplicate artifactId axis2-json-api: both wildfly and tomcat11 modules are
  standalone POMs (no shared reactor parent), so Maven GAV uniqueness is not
  required; both deploy to the same context path /axis2-json-api intentionally.
- woodstox-core-asl:4.4.1: pre-existing in tomcat11, carried over; Axis2
  requires this specific artifact for StAX parsing — upgrade tracked separately.
- commons-fileupload2 M2: no stable release available at time of writing.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: robertlazarski

modules/samples/userguide/src/userguide/springbootdemo-tomcat11/src/main/java/userguide/springboot/configuration/Axis2WebAppInitializer.java

@@ -74,7 +74,7 @@ private void addAxis2Servlet(ServletContext container, AnnotationConfigWebApplic
         // Explicitly set the Axis2 repository path so WarBasedAxisConfigurator finds
         // WEB-INF/services/*.aar on both Tomcat and WildFly (bypasses getRealPath() VFS issues).
         String webInfPath = container.getRealPath("/WEB-INF");
-        logger.warn("addAxis2Servlet: axis2.repository.path = " + webInfPath);
+        logger.info("addAxis2Servlet: axis2.repository.path = " + webInfPath);
         if (webInfPath != null) {
             dispatcher.setInitParameter(WarBasedAxisConfigurator.PARAM_AXIS2_REPOSITORY_PATH, webInfPath);
         }

modules/samples/userguide/src/userguide/springbootdemo-wildfly/src/main/webapp/WEB-INF/jboss-web.xml

@@ -1,12 +1,14 @@
-<?xml version="1.0"?>
-<!DOCTYPE jboss-web PUBLIC
-   "-//JBoss//DTD Web Application 5.0//EN"
-   "http://www.jboss.org/j2ee/dtd/jboss-web_5_0.dtd">
+<?xml version="1.0" encoding="UTF-8"?>
 <!--
   Context root for WildFly deployment.
   WAR filename (axis2-json-api.war) sets the context to /axis2-json-api by default.
   Uncomment <context-root> below to override (e.g. to deploy as root context).
+
+  Schema: jboss-web_15_1.xsd (WildFly 32+ / Jakarta EE 10+).
 -->
-<jboss-web>
+<jboss-web xmlns="urn:jboss:jakartaee:1.0"
+           xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+           xsi:schemaLocation="urn:jboss:jakartaee:1.0 https://www.jboss.org/schema/jbossas/jboss-web_15_1.xsd"
+           version="15.1">
     <!-- <context-root>/</context-root> -->
 </jboss-web>