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java.lang.ClassCastException: java.util.HashMap cannot be cast to java.util.Collection	at com.sextech.noui.ListViewAdapter.filter(ListViewAdapter.java:154)	at com.sextech.noui.MainActivity$DownloadJSON$1.afterTextChanged(MainActivity.java:230)	at android.widget.TextView.sendAfterTextChanged(TextView.java:7822)	at android.widget.TextView$ChangeWatcher.afterTextChanged(TextView.java:9635)	at android.text.SpannableStringBuilder.sendAfterTextChanged(SpannableStringBuilder.java:976)	at android.text.SpannableStringBuilder.replace(SpannableStringBuilder.java:520)	at android.text.SpannableStringBuilder.replace(SpannableStringBuilder.java:454)	at android.text.SpannableStringBuilder.replace(SpannableStringBuilder.java:33)	at android.view.inputmethod.BaseInputConnection.replaceText(BaseInputConnection.java:690)	at android.view.inputmethod.BaseInputConnection.setComposingText(BaseInputConnection.java:450)	at com.android.internal.view.IInputConnectionWrapper.executeMessage(IInputConnectionWrapper.java:349)	at com.android.internal.view.IInputConnectionWrapper$MyHandler.handleMessage(IInputConnectionWrapper.java:82)	at android.os.Handler.dispatchMessage(Handler.java:102)	at android.os.Looper.loop(Looper.java:135)	at android.app.ActivityThread.main(ActivityThread.java:5593)	at java.lang.reflect.Method.invoke(Native Method)	at java.lang.reflect.Method.invoke(Method.java:372)	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:960)	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755)