Package Summary Overview Summary

### class:NullPointerException [NONE]
- All Implemented Interfaces: Serializable
      public class NullPointerException
      extends RuntimeException
Thrown when an application attempts to use `null` in a case where an object is required. These include: Calling the instance method of a `null` object. Accessing or modifying the field of a `null` object. Taking the length of `null` as if it were an array. Accessing or modifying the slots of `null` as if it were an array. Throwing `null` as if it were a `Throwable` value. Applications should throw instances of this class to indicate other illegal uses of the `null` object. `NullPointerException` objects may be constructed by the virtual machine as if suppression were disabled and/or the stack trace was not writable . Since: 1.0 See Also: Serialized Form

### constructor:NullPointerException() [NONE]
- #### NullPointerException
      public NullPointerException()
Constructs a `NullPointerException` with no detail message.

### constructor:NullPointerException(java.lang.String) [NONE]
- #### NullPointerException
      public NullPointerException(String s)
Constructs a `NullPointerException` with the specified detail message. Parameters: `s` - the detail message.