public Object getAttribute(Class sender,
    Object receiver,
    String messageName,
    boolean useSuper)
Retrieves the value of an attribute (field). This method is to support the Groovy runtime and not for general client API usage.

 public ClassNode getClassNode()
Obtains a reference to the original AST for the MetaClass if it is available at runtime

 public List getMetaMethods()
Retrieves a list of MetaMethod instances held by this class

 public List getMethods()
Retrieves a list of MetaMethods held by the class

 public List getProperties()
Retrives a list of MetaProperty instances that the MetaClass has

 public Object getProperty(Class sender,
    Object receiver,
    String property,
    boolean isCallToSuper,
    boolean fromInsideClass)
Retrieves a property on the given receiver for the specified arguments. The sender is the class that is requesting the property from the object.
The MetaClass will attempt to establish the method to invoke based on the name and arguments provided.

The isCallToSuper and fromInsideClass help the Groovy runtime perform optimisations on the call to go directly
to the super class if necessary

 public  void initialize()
complete the initlialisation process. After this method
is called no methods should be added to the meta class.
Invocation of methods or access to fields/proeprties is
forbidden unless this method is called. This method
should contain any initialisation code, taking a longer
time to complete. An example is the creation of the
Reflector. It is suggested to synchronize this
method.

 public Object invokeMethod(Class sender,
    Object receiver,
    String methodName,
    Object[] arguments,
    boolean isCallToSuper,
    boolean fromInsideClass)
Invokes a method on the given receiver for the specified arguments. The sender is the class that invoked the method on the object.
The MetaClass will attempt to establish the method to invoke based on the name and arguments provided.

The isCallToSuper and fromInsideClass help the Groovy runtime perform optimisations on the call to go directly
to the super class if necessary

 public Object invokeMissingMethod(Object instance,
    String methodName,
    Object[] arguments)
Attempts to invoke the methodMissing method otherwise throws a MissingMethodException

 public Object invokeMissingProperty(Object instance,
    String propertyName,
    Object optionalValue,
    boolean isGetter)
Invokes the propertyMissing method otherwise throws a MissingPropertyException

 public MetaMethod pickMethod(String methodName,
    Class[] arguments)
Selects a method by name and argument classes. This method
does not search for an exact match, it searches for a compatible
method. For this the method selection mechanism is used as provided
by the implementation of this MetaClass. pickMethod may or may
not be used during the method selection process when invoking a method.
There is no warranty for that.

 public int selectConstructorAndTransformArguments(int numberOfConstructors,
    Object[] arguments)
Internal method to support Groovy runtime. Not for client usage.

 public  void setAttribute(Class sender,
    Object receiver,
    String messageName,
    Object messageValue,
    boolean useSuper,
    boolean fromInsideClass)
Sets the value of an attribute (field). This method is to support the Groovy runtime and not for general client API usage.

 public  void setProperty(Class sender,
    Object receiver,
    String property,
    Object value,
    boolean isCallToSuper,
    boolean fromInsideClass)
Retrieves a property on the given receiver for the specified arguments. The sender is the class that is requesting the property from the object.
The MetaClass will attempt to establish the method to invoke based on the name and arguments provided.

The isCallToSuper and fromInsideClass help the Groovy runtime perform optimisations on the call to go directly
to the super class if necessary