```
public class ExtensionMethodCache
extends AbstractExtensionMethodCache
```
This class is used to make extension methods lookup faster. Basically, it will only collect the list of extension methods (see ExtensionModule if the list of extension modules has changed. It avoids recomputing the whole list each time we perform a method lookup.

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected void`	`addAdditionalClassesToScan(Set<Class> instanceExtClasses, Set<Class> staticExtClasses)`
`protected Predicate<MethodNode>`	`getMethodFilter()`
`protected Function<MethodNode,String>`	`getMethodMapper()`

Methods inherited from class org.codehaus.groovy.transform.stc.AbstractExtensionMethodCache
get

public static final ExtensionMethodCache INSTANCE

protected void addAdditionalClassesToScan(Set<Class> instanceExtClasses,
                                          Set<Class> staticExtClasses)

Specified by:: addAdditionalClassesToScan in class AbstractExtensionMethodCache

Class ExtensionMethodCache