java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String java.lang.String.toLowerCase()' on a null object reference
	at jrizani.jrspinner.Adapter.update(Adapter.java:59)
	at jrizani.jrspinner.Dialog$2.onTextChanged(Dialog.java:120)
	at android.widget.TextView.sendOnTextChanged(TextView.java:8194)
	at android.widget.TextView.handleTextChanged(TextView.java:8256)
	at android.widget.TextView$ChangeWatcher.onTextChanged(TextView.java:10387)
	at android.text.SpannableStringBuilder.sendTextChanged(SpannableStringBuilder.java:1263)
	at android.text.SpannableStringBuilder.replace(SpannableStringBuilder.java:577)
	at android.text.SpannableStringBuilder.replace(SpannableStringBuilder.java:508)
	at android.text.SpannableStringBuilder.replace(SpannableStringBuilder.java:507)
	at android.view.inputmethod.BaseInputConnection.replaceText(BaseInputConnection.java:844)
	at android.view.inputmethod.BaseInputConnection.setComposingText(BaseInputConnection.java:617)
	at com.android.internal.view.IInputConnectionWrapper.executeMessage(IInputConnectionWrapper.java:408)
	at com.android.internal.view.IInputConnectionWrapper$MyHandler.handleMessage(IInputConnectionWrapper.java:93)
	at android.os.Handler.dispatchMessage(Handler.java:102)
	at android.os.Looper.loop(Looper.java:163)
	at android.app.ActivityThread.main(ActivityThread.java:6238)
	at java.lang.reflect.Method.invoke(Native Method)
	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:933)
	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:823)