add exit code to CLIDriver and revert changes in CreateImage of rethrowing exception - will solve the missing stdout later

Author: jshum2479

src/main/java/com/oracle/weblogicx/imagebuilder/cli/CLIDriver.java

@@ -41,6 +41,7 @@ public static void main(String[] args) {
         CLIDriver cliDriver = new CLIDriver();
         if (args.length == 0) {
             CommandLine.usage(cliDriver, System.out);
+            System.exit(-1);
         } else {
             //List<String> argsList = Stream.of(args).collect(Collectors.toList());
             //argsList.add("--cli");
@@ -52,9 +53,9 @@ public static void main(String[] args) {
                         response.getMessage()));
                 //Map<String, String> results = response.getResult();
                 //results.forEach((key, value) -> System.out.println(key + "=" + value));
-            }/* else {
-                System.out.println("response is null");
-            }*/
+                System.exit(response.getStatus());
+            }
+            System.exit(-1);
         }
     }
 }

src/main/java/com/oracle/weblogicx/imagebuilder/cli/menu/CreateImage.java

@@ -122,8 +122,7 @@ public CommandResponse call() throws Exception {
             logger.info("docker cmd = " + String.join(" ", cmdBuilder));
             Utils.runDockerCommand(isCLIMode, cmdBuilder, dockerLog);
         } catch (Exception ex) {
-            throw ex;
-//            return new CommandResponse(-1, ex.getMessage());
+            return new CommandResponse(-1, ex.getMessage());
         } finally {
             Utils.deleteFilesRecursively(tmpDir);
             Utils.deleteFilesRecursively(tmpDir2);