fix: BuildService 'nocache.length() == 0' can be replaced with 'nocac…

…he.isEmpty()' (3434)

Signed-off-by: Anmol Kumar <95901518+Aknummoalr@users.noreply.github.com>

jkube-kit/build/service/docker/src/main/java/org/eclipse/jkube/kit/build/service/docker/BuildService.java

@@ -216,7 +216,7 @@ private List<String> extractBaseFromDockerfile(BuildConfiguration buildConfig, J
     private boolean checkForNocache(ImageConfiguration imageConfig) {
         String nocache = System.getProperty("docker.nocache");
         if (nocache != null) {
-            return nocache.length() == 0 || Boolean.parseBoolean(nocache);
+            return nocache.isEmpty() || Boolean.parseBoolean(nocache);
         } else {
             BuildConfiguration buildConfig = imageConfig.getBuildConfiguration();
             return buildConfig.nocache();