ObjectSpace (JRuby Core 9.0.2.0 API)

```
public class ObjectSpace
extends Object
```
FIXME: This version is faster than the previous, but both suffer from a crucial flaw: It is impossible to create an ObjectSpace with an iterator that doesn't either: a. hold on to objects that might otherwise be collected or b. have no way to guarantee that a call to hasNext() will be correct or that a subsequent call to next() will produce an object. For our purposes, for now, this may be acceptable.

Constructors
Constructor and Description
`ObjectSpace()`

Methods
Modifier and Type	Method and Description
`void`	`add(IRubyObject object)`
`void`	`addFinalizer(IRubyObject object, IRubyObject proc)`
`static long`	`calculateObjectId(Object object)`
`long`	`createAndRegisterObjectId(IRubyObject rubyObject)`
`IRubyObject`	`id2ref(long id)`
`long`	`idOf(IRubyObject rubyObject)` Deprecated.
`Iterator`	`iterator(RubyModule rubyClass)`
`void`	`registerObjectId(long id, IRubyObject object)`
`void`	`removeFinalizers(long id)`

public void registerObjectId(long id,
                    IRubyObject object)

public static long calculateObjectId(Object object)

public long createAndRegisterObjectId(IRubyObject rubyObject)

@Deprecated
public long idOf(IRubyObject rubyObject)

Deprecated.

public void addFinalizer(IRubyObject object,
                IRubyObject proc)

public void removeFinalizers(long id)

public Iterator iterator(RubyModule rubyClass)

Class ObjectSpace