Use {@code} for XML elements in private method javadoc

Use {@code <element>} instead of &lt;element&gt; escapes in javadoc
for better readability in source code (per Martin's suggestion).

Addresses review comment from desruisseaux on PR #11505.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: ascheman

impl/maven-core/src/main/java/org/apache/maven/project/DefaultProjectBuilder.java

@@ -1138,13 +1138,13 @@ private record ResourceHandlingContext(
      * Handles resource configuration for a given scope (main or test).
      * This method applies the resource priority rules:
      * <ol>
-     *   <li>Modular project: use resources from &lt;sources&gt; if present, otherwise inject defaults</li>
-     *   <li>Classic project: use resources from &lt;sources&gt; if present, otherwise use legacy resources</li>
+     *   <li>Modular project: use resources from {@code <sources>} if present, otherwise inject defaults</li>
+     *   <li>Classic project: use resources from {@code <sources>} if present, otherwise use legacy resources</li>
      * </ol>
      *
      * @param ctx the resource handling context containing project info
-     * @param resources the legacy resource list (from &lt;resources&gt; or &lt;testResources&gt;)
-     * @param hasResourcesInSources whether resources are configured via &lt;sources&gt;
+     * @param resources the legacy resource list (from {@code <resources>} or {@code <testResources>})
+     * @param hasResourcesInSources whether resources are configured via {@code <sources>}
      * @param scope the project scope (MAIN or TEST)
      */
     private void handleResourceConfiguration(
@@ -1247,7 +1247,7 @@ private static Set<String> extractModules(List<org.apache.maven.api.model.Source
 
     /**
      * Creates a DefaultSourceRoot for module-aware resource directories.
-     * Generates paths following the pattern: src/&lt;module&gt;/&lt;scope&gt;/resources
+     * Generates paths following the pattern: {@code src/<module>/<scope>/resources}
      *
      * @param baseDir base directory of the project
      * @param module module name