missing stdout

[atian25]

    shell: {
      jar: {
        options: {
          stdout: true,
          sterr: true,
          execOptions: {
            cwd: 'apk-packer'
          }
        },
        command: 'java -jar tools\\apktool.jar b -f 9gameclient-debug 9gameclient-test.apk'
        // command: [
        //   'java -jar tools\\apktool.jar b -f 9gameclient-debug 9gameclient-test.apk',
        //   'ls','java -version'
        //   //'jarsigner -verbose -sigalg MD5withRSA -digestalg SHA1 -keystore test.keystore -storepass 123456 9gameclient-test.apk test'
        // ].join('&&')
      }

when run at cmd, output

D:\Desktop\clientapp-1.2.3\apk-packer>java -jar tools/apktool.jar b -f 9gameclient-debug 9gameclient-test.apk
I: Copying classes.dex file...
I: Copying raw resources...
I: Copying libs...
I: Building apk file...

but using grunt-shell output nth:

D:\Desktop\clientapp-1.2.3>grunt shell:jar
Running "shell:jar" (shell) task

Done, without errors.

even using java -x output Done, without errors. but expect Unrecognized option: -x Could not create the Java virtual machine.

did I missing any config?

[sindresorhus]

You need to set failOnError to true.