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 ...

Null pointer exception is an “exception” (error) that is particularly common when programming in Java. For a beginner, this is a confusing and daunting message to receive, but it can be just ...

It was announced approximately 18 months ago that JDK 7 would include a new java.util.Objects class that would "hold commonly-written utility methods." As part of this announcement , Joe Darcy ...