[JBPM-10214] Fix regression for immutable KIE container with auto scan (

#3004)

* [JBPM-10214] Fix regression for immutable KIE container with auto scan

* Update kie-spring-boot/kie-spring-boot-autoconfiguration/kie-server-spring-boot-autoconfiguration/src/main/java/org/kie/server/springboot/autoconfiguration/KieServerAutoConfiguration.java

Co-authored-by: Francisco Javier Tirado Sarti <65240126+fjtirado@users.noreply.github.com>

---------

Co-authored-by: gmunozfe <gmunozfe@gmunozfe-thinkpadp1gen3.remote.csb>
Co-authored-by: Francisco Javier Tirado Sarti <65240126+fjtirado@users.noreply.github.com>

kie-spring-boot/kie-spring-boot-autoconfiguration/kie-server-spring-boot-autoconfiguration/src/main/java/org/kie/server/springboot/autoconfiguration/KieServerAutoConfiguration.java

@@ -173,7 +173,8 @@ public List<KieContainerResource> buildDeployments(KieServerProperties kieServer
     public List<KieContainerResource> buildAutoScanDeployments(KieServerProperties kieServerProperties) throws IOException {
         ApplicationHome appHome = new ApplicationHome();
         final String folder = "BOOT-INF/classes/KIE-INF/lib/";
-        return (explodedJarFolder == null) ? discoverDeployments(folder, new FileInputStream(appHome.getSource())) :  discoverDeployments(folder, new File(explodedJarFolder));
+        List<KieContainerResource> containerResources = discoverDeployments(folder, new File(explodedJarFolder));
+        return containerResources.isEmpty() ? discoverDeployments(folder, new FileInputStream(appHome.getSource())) : containerResources;
     }
 
     public List<KieContainerResource> discoverDeployments(String folder, File root) {