在karaf中安裝scr特性之後，激活方法被調用了兩次

Question

我試圖用我已經發布在這個link中的示例來安裝apache-karaf 2.3.10的OSGi包。我做了以下步驟

1. Downloaded apache-karaf version 2.3.10 
2. Executed the command features:install scr. Successfully installed scr. I have verified by executing scr:list 
3. Installed all the bundles 
4. Finally after starting all the bundles activate method in ExampleComponentFactoryManager called twice and two objects are created. I have verified the same by executing the command scr:list 
5. After uninstalling the scr feature the activate method in ExampleComponentFactoryManager called only once which is the expected behaviour. 
6. Also i have noted that upto apache-karaf-2.3.10 while installing the scr feature it fetches from the online repo. But from 2.3.11 i am getting error because it tries to fetch it from my maven repository. The error is shown the console. 

有人可以告訴我在卡拉夫特徵scr發生了什麼？ 因爲有了scr功能，我可以看到karaf中有哪些可用的工廠和實例。這是預期的嗎？

Answer 1

你可以檢查是否有兩個運行felix scr軟件包的實例。這將解釋雙重對象的創造。