What are Null Pointer Exceptions (java.lang.NullPointerException) and what causes them? What methods/tools can be used to determine the cause so that you stop the exception from causing the progra...
Note that a NullPointerException is usually easy to solve. Carefully look at the stack trace of the exception; it tells you exactly in which line of your code the exception happens.
My test automation returns NullPointerException. What are Null Pointer Exceptions (java.lang.NullPointerException) and what causes them? What methods/tools can be used to determine the cause so tha...
As of "catching NullPointerException and returning null is horrible to debug. You end up with NPE later on anyway, and it's really hard to figure out what was originally null". I'm totally agree! In those cases you should write a dozen of 'if' statements or throw NPE if business logic imply data in-place, or use null-safe operator from new Java.
Что из себя представляет исключение Null Pointer Exception (java.lang.NullPointerException) и почему оно может происходить? Какие методы и средства использовать, чтобы определить причину возникнов...
I tried using try-catch block to catch NullPointerException but still the following program is giving errors. Am I doing something wrong or is there any other way to catch NullPointerException in ...
Effective Java 2nd Edition, Item 60: "Arguably, all erroneous method invocations boil down to an illegal argument or illegal state, but other exceptions are standardly used for certain kinds of illegal arguments and states. If a caller passes null in some parameter for which null values are prohibited, convention dictates that NullPointerException be thrown rather than IllegalArgumentException ...
Tengo mi programa de Java y me sale un NullPointerException y he visto otras preguntas pero son de gente con otros programas y no me sirve para mi programa y quiero dejaros aquí las 2.000 líneas de...
I am using eclipse and programing in java. Sometimes I come across a nullPointerException that will plague me for hours. Is there anyway to debug nullPointerExceptions better and figure out what va...
