iption copied from interface:` [ Matcher ](../../../org/hamcrest/Matcher.html#matches\(java.lang.Object\)) ` **
     Evaluates the matcher for argument  item  . 

This method matches against Object, instead of the generic type T. This is
because the caller of the Matcher does not know at runtime what the type is
(because of type erasure with Java generics). It is down to the
implementations to check the correct type.

    

**Parameters:**      ` o ` \- the object against which the matcher is
evaluated.  **Returns:**      ` true ` if  item  matches, otherwise ` false `
.  **See Also:**      [ ` BaseMatcher `
](../../../org/hamcrest/BaseMatcher.html "class in org.hamcrest")

* * *

###  describeTo

    
    
    public void **describeTo**([Description](../../../org/hamcrest/Description.html "interface in org.hamcrest") description)

     **Description copied from interface:` [ SelfDescribing ](../../../org/hamcrest/SelfDescribing.html#describeTo\(org.hamcrest.Description\)) ` **
     Generates a description of the object. The description may be part of a a description of a larger object of which this is just a component, so it should be worded appropriately. 

    

**Parameters:**      ` description ` \- The description to be built or
appended to.

* * *

###  nullValue

    
    
    public static [Matcher](../../../org/hamcrest/Matcher.html "interface in org.hamcrest")<java.lang.Object> **nullValue**()

     Creates a matcher that matches if examined object is ` null ` . 

For example:

    
    
    assertThat(cheese, is(nullValue())

    

* * *

###  notNullValue

    
    
    public static [Matcher](../../../org/hamcrest/Matcher.html "interface in org.hamcrest")<java.lang.Object> **notNullValue**()

     A shortcut to the frequently used ` not(nullValue()) ` . 

For example:

    
    
    assertThat(cheese, is(notNullValue()))

instead of:

    
    
    assertThat(cheese, is(not(nullValue())))

    

* * *

###  nullValue

    
    
    public static <T> [Matcher](../../../org/hamcrest/Matcher.html "interface in org.hamcrest")<T> **nullValue**(java.lang.Class<T> type)

     Creates a matcher that matches if examined object is ` null ` . Accepts a single dummy argument to facilitate type inference. 

For example:

    
    
    assertThat(cheese, is(nullValue(Cheese.class))

    

**Parameters:**      ` type ` \- dummy parameter used to infer the generic
type of the returned matcher

* * *

###  notNullValue

    
    
    public static <T> [Matcher](../../../org/hamcrest/Matcher.html "interface in org.hamcrest")<T> **notNullValue**(java.lang.Class<T> type)

     A shortcut to the frequently used ` not(nullValue(X.class)). Accepts a single dummy argument to facilitate type inference. ` . 

For example:

    
    
    assertThat(cheese, is(notNullValue(X.class)))

instead of:

    
    
    assertThat(cheese, is(not(nullValue(X.class))))

    

**Parameters:**      ` type ` \- dummy parameter used to infer the generic
type of the returned matcher

* * *

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