Android NFC - Attempt to invoke virtual method 'boolean android.nfc.Tag.hasTech(int)' on a null object reference
49
What is a NullPointerException, and how do I fix it?
88422
Why does this text cause android devices to 'hang'?
43545
Why is the NFC in the Galaxy Nexus battery?
124773
NullPointerException when calling service in onResume
128142
java.lang.NullPointerException at org.apache.jsp.foo_jsp._jspInit(foo_jsp.java:22)
151172
Which @NotNull Java annotation should I use?
114816
Is null reference possible?
42958
Method Overloading for null argument
139395
com.sun.istack.SAXException2 : Instance ... is substituting "java.lang.Object", but ... is bound to an anonymous type
130334
VerifyError in web-service operation using SOAP only in Android 4.2?
10594
how to deal with the serial port in android mobile?
120832
Rooting Stock Firmware - GSII with NFC
71099
AsyncTask and error handling on Android
63521
How to pass a nullable type to a P/invoked function
2116
IllegalArgumentException or NullPointerException for a null parameter?
78586
Why doesn't "System.out.println" work in Android?
46857
Compiler warning: null reference exception