Android - 'cursor.close()' may produce 'java.lang.nullpointerexception'?

Question

I have bellow code which works just fine, but produces a warning:

method invocation 'cursor.close()' may produce 'java.lang.nullpointerexception'

Answer 1

cursor_id may not be initialized, as, e.g., your try block checks. You need to add the same validation in the finally block:

} finally { 
    if (cursor_id != null) {
        cursor_id.close();
    }
}