来源附件不包含的文件源ThreadPoolExecutor.class [英] Source Attachment does not contain the source for the file ThreadPoolExecutor.class

问题描述

我的工作，它使用了的Andr​​oid项目的web服务我已经建立。此前有工作的罚款几分钟，但它突然开始给下面的错误。

源附件不包含的文件源threadpoolexecutor.class

I am working on an android project which uses the webservice I have created. It was working fine few minutes earlier but suddenly it started to give below error.
the source attachment does not contain the source for the file threadpoolexecutor.class

logcat的错误是：

Logcat error is :

07-10 11:30:22.844: E/AndroidRuntime(1707): FATAL EXCEPTION: AsyncTask #1
07-10 11:30:22.844: E/AndroidRuntime(1707): java.lang.RuntimeException: An error occured while executing doInBackground()
07-10 11:30:22.844: E/AndroidRuntime(1707):     at android.os.AsyncTask$3.done(AsyncTask.java:299)
07-10 11:30:22.844: E/AndroidRuntime(1707):     at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:352)
07-10 11:30:22.844: E/AndroidRuntime(1707):     at java.util.concurrent.FutureTask.setException(FutureTask.java:219)
07-10 11:30:22.844: E/AndroidRuntime(1707):     at java.util.concurrent.FutureTask.run(FutureTask.java:239)
07-10 11:30:22.844: E/AndroidRuntime(1707):     at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230)
07-10 11:30:22.844: E/AndroidRuntime(1707):     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080)
07-10 11:30:22.844: E/AndroidRuntime(1707):     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573)
07-10 11:30:22.844: E/AndroidRuntime(1707):     at java.lang.Thread.run(Thread.java:856)
07-10 11:30:22.844: E/AndroidRuntime(1707): Caused by: java.lang.NullPointerException
07-10 11:30:22.844: E/AndroidRuntime(1707):     at com.example.backgroundTask.BackgroundTask.RegisterUser(BackgroundTask.java:125)
07-10 11:30:22.844: E/AndroidRuntime(1707):     at com.example.backgroundTask.BackgroundTask.doInBackground(BackgroundTask.java:65)
07-10 11:30:22.844: E/AndroidRuntime(1707):     at com.example.backgroundTask.BackgroundTask.doInBackground(BackgroundTask.java:1)
07-10 11:30:22.844: E/AndroidRuntime(1707):     at android.os.AsyncTask$2.call(AsyncTask.java:287)
07-10 11:30:22.844: E/AndroidRuntime(1707):     at java.util.concurrent.FutureTask.run(FutureTask.java:234)
07-10 11:30:22.844: E/AndroidRuntime(1707):     ... 4 more
07-10 11:30:23.174: W/Trace(1707): Unexpected value from nativeGetEnabledTags: 0

请告诉我什么可能导致此错误还是让我知道，如果需要更多的信息。


感谢和放大器;问候..

Sourabh

Please tell me what may cause this error or let me know if more information required.

Thanks & Regards..
Sourabh

推荐答案

我找到了。我被检查的值，如果一切，如果细它将返回null从Web服务。而空值我试图转换为字符串值，因此歌厅上述错误。

感谢CommonsWare。

I found it. I was checking the value and if everything if fine it will return null from the web service. and that null value I was trying to convert to string value and hence geting the above error.
Thanks CommonsWare.

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