Fix TUs, Upgrade JDK 21

Author: Thierry Boileau

org.restlet/pom.xml

@@ -98,11 +98,8 @@
     <build>
         <testResources>
             <testResource>
-                <directory>src/test/resources</directory>
+                <directory>${basedir}/src/test/resources</directory>
                 <filtering>true</filtering>
-                <includes>
-                    <include>**/*.properties</include>
-                </includes>
             </testResource>
         </testResources>
         <plugins>

pom.xml

@@ -293,6 +293,11 @@
             </plugin>
             <plugin>
                 <artifactId>maven-resources-plugin</artifactId>
+                <configuration>
+                    <nonFilteredFileExtensions>
+                        <nonFilteredFileExtension>p12</nonFilteredFileExtension>
+                    </nonFilteredFileExtensions>
+                </configuration>
             </plugin>
             <plugin>
                 <artifactId>maven-install-plugin</artifactId>