It doesn’t take much Java development experience to learn firsthand what the NullPointerException is about. In fact, one person has highlighted dealing with this as the number one mistake Java ...

Learn what causes null pointer exceptions in Java, how to identify them, and how to fix them with simple techniques and best practices. Also, learn how to test and learn more about them.

This Java code demonstrates two common runtime exceptions: ArithmeticException (division by zero) and NullPointerException (attempting to access a member of a null object). The "finally" block ...

We envision a world where no exceptions are raised; instead, language semantics are changed so that operations are total functions. Either an operation executes normally or tailored recovery code is ...

I get a null pointer exception upon first navigation, but the page is successfully navigated with no issues, except for the exception trace. It seems to be an issue in your code. Subsequent ...