Built-in (or popular 3rd party library) way to map between primitive and corresponding reference type ("wrapper")?

I'm looking for a bidirectional map that, for example, produces java.lang.Boolean.class when a lookup is done on java.lang.Boolean.TYPE, and visa versa. Basically, a primitive ⇆ wrapper map.

It seems easy enough to construct such a map, but I'm wondering if one is already available in some popular, common place (this example uses Google Guava):

import com.google.common.collect.BiMap;
import com.google.common.collect.ImmutableBiMap;

public static final BiMap<Class<?>, Class<?>> PRIMITIVE_TO_OBJECT = ImmutableBiMap.<Class<?>, Class<?>>builder()
    .put(  Boolean.TYPE,   Boolean.class)
    .put(     Byte.TYPE,      Byte.class)
    .put(Character.TYPE, Character.class)
    .put(   Double.TYPE,    Double.class)
    .put(    Float.TYPE,     Float.class)
    .put(  Integer.TYPE,   Integer.class)
    .put开发者_如何学Python(     Long.TYPE,      Long.class)
    .put(    Short.TYPE,     Short.class)
    .build();

---

org.apache.commons.lang3.ClassUtils in the Apache Commons Lang project:

static Class<?> primitiveToWrapper(Class<?> cls)
    Converts the specified primitive Class object 
    to its corresponding wrapper Class object.

static Class<?> wrapperToPrimitive(Class<?> cls)
    Converts the specified wrapper class to its 
    corresponding primitive class.