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POIOException e is null
 

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    <blockquote> <p><strong>Possible Duplicate:</strong><br> <a href="https://stackoverflow.com/questions/3949609/exception-is-null-always">Exception is NULL always</a> </p> </blockquote> <p>I've got a strange problem with an IOException object and couldn't find an answer for this.</p> <p>Code looks like this:</p> <pre><code>try { // This isn't very important part, but maybe it has something to do with a problem HttpResponse response = client.execute(httpGet); StatusLine statusLine = response.getStatusLine(); int statusCode = statusLine.getStatusCode(); if (statusCode == 200) { HttpEntity entity = response.getEntity(); InputStream content = entity.getContent(); BufferedReader reader = new BufferedReader(new InputStreamReader(content)); String line; while ((line = reader.readLine()) != null) { builder.append(line); } } else { Log.e(ParseJSON.class.toString(), "Failed to download file"); } } catch (IOException e) { System.out.println("I'm here in the IOException catch clause"); e.printStackTrace(); // e is null (line 126) } catch (Exception e) { e.printStackTrace(); } </code></pre> <p>Program catches <code>IOException</code>, but its object (e) is <code>null</code>. How is this possible? </p> <p>Edit: Stack Trace:</p> <pre><code>09-25 19:35:59.438: I/System.out(31732): I'm here in the IOException catch clause 09-25 19:36:04.377: W/dalvikvm(31732): threadid=1: thread exiting with uncaught exception (group=0x40020ac0) 09-25 19:36:04.447: E/AndroidRuntime(31732): FATAL EXCEPTION: main 09-25 19:36:04.447: E/AndroidRuntime(31732): java.lang.RuntimeException: Unable to start activity ComponentInfo{uniwersytet.ekiosk/uniwersytet.ekiosk.EkioskActivity}: java.lang.NullPointerException 09-25 19:36:04.447: E/AndroidRuntime(31732): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2663) 09-25 19:36:04.447: E/AndroidRuntime(31732): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679) 09-25 19:36:04.447: E/AndroidRuntime(31732): at android.app.ActivityThread.access$2300(ActivityThread.java:125) 09-25 19:36:04.447: E/AndroidRuntime(31732): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033) 09-25 19:36:04.447: E/AndroidRuntime(31732): at android.os.Handler.dispatchMessage(Handler.java:99) 09-25 19:36:04.447: E/AndroidRuntime(31732): at android.os.Looper.loop(Looper.java:123) 09-25 19:36:04.447: E/AndroidRuntime(31732): at android.app.ActivityThread.main(ActivityThread.java:4627) 09-25 19:36:04.447: E/AndroidRuntime(31732): at java.lang.reflect.Method.invokeNative(Native Method) 09-25 19:36:04.447: E/AndroidRuntime(31732): at java.lang.reflect.Method.invoke(Method.java:521) 09-25 19:36:04.447: E/AndroidRuntime(31732): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860) 09-25 19:36:04.447: E/AndroidRuntime(31732): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618) 09-25 19:36:04.447: E/AndroidRuntime(31732): at dalvik.system.NativeStart.main(Native Method) 09-25 19:36:04.447: E/AndroidRuntime(31732): Caused by: java.lang.NullPointerException 09-25 19:36:04.447: E/AndroidRuntime(31732): at uniwersytet.ekiosk.EkioskActivity.onCreate(EkioskActivity.java:126) 09-25 19:36:04.447: E/AndroidRuntime(31732): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047) 09-25 19:36:04.447: E/AndroidRuntime(31732): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627) 09-25 19:36:04.447: E/AndroidRuntime(31732): ... 11 more </code></pre>
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    1. USPiotr Chojnacki
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    1. COJust a tip. If you catch `Exception e`, you don't need to catch any other `Exception` class because those are children of `Exception` class.
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    2. COHow do you know that `e` is null?
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      1. USSimon Forsberg
    3. CODo you get a Exception because of a Exception? "y0 dawg, I hear you like Exception inside Exception" - Xzibit
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      1. USLeandros
 

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