null - Why won't Groovy honor my command-line switches? -

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मेरे पास निम्न ग्रोवी वर्ग हैं: 

  class MyApp {public static void main (स्ट्रिंग) [] Args) {स्ट्रिंग नाम = System.getProperty ("name") println "मेरा नाम $ {name} है।" }}   
 जब मैं इसे निष्पादन योग्य जार के रूप में संकलित करता हूं और तब इसे चलाता है ( java -jar myapp.jar -Dname = अर्ल ), यहाँ आउटपुट है मुझे मिलता है:  
 
 मेरा नाम रिक्त है।   
  क्यों  नाम  नल और नहीं है " अर्ल  "   
 
 
  जावा  निष्पादन योग्य समझता है  मुख्य  विधि के लिए एक तर्क के रूप में मुख्य वर्ग / जार के बाद आने वाली सभी चीजें  java -Dname = अर्ल-जेरा myapp.jar  का प्रयास करें। (जब तक जार वसा जार या ग्रूवी जार के मैनिफ़ेस्ट क्लास पथ अंक न हो, आपको इसे भी  -cp  का उपयोग करना होगा।)

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