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POjava.lang.NullPointerException
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  1. POjava.lang.NullPointerException
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    copied!<p>Users of my Android app are reporting that they receive a Forced Close message when an incoming call comes in.</p> <p>I have a Service Receiver and a phone state listener class to determine the status of the phone. When the state is "CALL_STATE_RINGING", I call upon the method stopAllPlayback() in my main Activity. It is at this point that users report "Forced Close" messages.</p> <p>Can you help me determine where the problem might be? I'm new to Java so I'm not 100% sure how to troubleshoot based on a stack trace.</p> <p>Here's the stack trace:</p> <pre><code>java.lang.NullPointerException at com.tdoo.toodoo.DroidGap.stopAllPlayback(DroidGap.java:190) at com.tdoo.toodoo.MyPhoneStateListener.onCallStateChanged(MyPhoneStateListener.java:21) at android.telephony.PhoneStateListener$2.handleMessage(PhoneStateListener.java:319) at android.os.Handler.dispatchMessage(Handler.java:99) at android.os.Looper.loop(Looper.java:143) at android.app.ActivityThread.main(ActivityThread.java:4701) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:521) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626) at dalvik.system.NativeStart.main(Native Method) </code></pre> <p><strong>UPDATE:</strong> I've just been able to replicate the error myself by putting my phone under a lot of stress (using adb shell monkey), then calling my phone. It seems that this error is occurring on slower phones, but I have the Droid Incredible which is significantly faster.</p> <p>Does this give anyone any new ideas?</p>
 

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