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POjava.lang.NullPointerException in my AsyncTask
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  1. POjava.lang.NullPointerException in my AsyncTask
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    copied!<p>I am getting an NPE in this code, I need a fix very quickly, can someone give me a hand?</p> <pre><code>import java.io.UnsupportedEncodingException; import java.net.HttpURLConnection; import org.apache.http.HttpResponse; import org.apache.http.StatusLine; import org.apache.http.client.HttpClient; import org.apache.http.client.methods.HttpGet; import org.apache.http.impl.client.DefaultHttpClient; import org.apache.http.util.EntityUtils; import org.json.JSONObject; import org.w3c.dom.Document; import org.w3c.dom.NodeList; import android.os.AsyncTask; public class GetXML extends AsyncTask&lt;String, String, BirdData&gt; { public GetXML(){ } /** * background */ @Override protected BirdData doInBackground(String... params) { String GetWikiID = params[0]; // All static variables String URL = "http://www.bbc.co.uk/nature/life/"+GetWikiID+".rdf"; // XML node keys XMLParser parser = new XMLParser(); String xml = parser.getXmlFromUrl(URL); // getting XML Document doc = parser.getDomElement(xml); // getting DOM element System.out.println("test3"); System.out.println(doc.getElementById("dc:description").getTextContent()); return null; } /** * on getting result */ @Override protected void onPostExecute(BirdData result) { } } </code></pre> <p>I am using this code to call it:</p> <pre><code>System.out.println(WikiID); new GetXML().execute(WikiID); </code></pre> <p>and the error is this: </p> <pre><code> 08-08 16:04:17.284: E/AndroidRuntime(17971): FATAL EXCEPTION: AsyncTask #1 08-08 16:04:17.284: E/AndroidRuntime(17971): java.lang.RuntimeException: An error occured while executing doInBackground() 08-08 16:04:17.284: E/AndroidRuntime(17971): at android.os.AsyncTask$3.done(AsyncTask.java:299) 08-08 16:04:17.284: E/AndroidRuntime(17971): at java.util.concurrent.FutureTask$Sync.innerSetException(FutureTask.java:273) 08-08 16:04:17.284: E/AndroidRuntime(17971): at java.util.concurrent.FutureTask.setException(FutureTask.java:124) 08-08 16:04:17.284: E/AndroidRuntime(17971): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:307) 08-08 16:04:17.284: E/AndroidRuntime(17971): at java.util.concurrent.FutureTask.run(FutureTask.java:137) 08-08 16:04:17.284: E/AndroidRuntime(17971): at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230) 08-08 16:04:17.284: E/AndroidRuntime(17971): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1076) 08-08 16:04:17.284: E/AndroidRuntime(17971): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:569) 08-08 16:04:17.284: E/AndroidRuntime(17971): at java.lang.Thread.run(Thread.java:856) 08-08 16:04:17.284: E/AndroidRuntime(17971): Caused by: java.lang.IllegalArgumentException: Illegal character in path at index 45: http://www.bbc.co.uk/nature/tools/search/Type text here... 08-08 16:04:17.284: E/AndroidRuntime(17971): at java.net.URI.create(URI.java:727) 08-08 16:04:17.284: E/AndroidRuntime(17971): at org.apache.http.client.methods.HttpPost.&lt;init&gt;(HttpPost.java:79) 08-08 16:04:17.284: E/AndroidRuntime(17971): at com.swift.birdspot.JSONParser.getJSONFromUrl(JSONParser.java:36) 08-08 16:04:17.284: E/AndroidRuntime(17971): at com.swift.birdspot.GetWikiID.doInBackground(GetWikiID.java:31) 08-08 16:04:17.284: E/AndroidRuntime(17971): at com.swift.birdspot.GetWikiID.doInBackground(GetWikiID.java:1) 08-08 16:04:17.284: E/AndroidRuntime(17971): at android.os.AsyncTask$2.call(AsyncTask.java:287) 08-08 16:04:17.284: E/AndroidRuntime(17971): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305) 08-08 16:04:17.284: E/AndroidRuntime(17971): ... 5 more </code></pre>
 

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