Suppressing Finializers?

Does anyone if this can be done in Java? I have some resources that need to be cleaned up in a timely fashion and im having issues with the lag between when the object is no longer refrenced by the application and when the object is consumed by the GC. Ive been working with Visual Basic Net lately and ive found a way to suppress them.

Code:

---

Class Demo
  Private m_disposed As Boolean
 
  Public Sub Disposed()

  If(Not m_disposed) Then
    Finialize()
    GC.SuppressFinialize(this)
    m_disposed = True
  End If
  End Sub

  Protected Overides Sub Finialize()
  'perform any necessary clean up here
 End Sub
End Class

---

Maybe I don't understand correctly, but why can't you just call the System's gc() method to run the garbage collector?

:)

I thought about that, but i wasn't to sure if i wanted to explictly run the GC in order to clean up a small amount of memory. I was thinking that the application might incur a performance hit by explictly invoking the GC rather than calling the finalize method directly. Im still not quite sure why VB.Net has a way to suppress finializers since if the finialize method is called and memory is reclaimed the method should only be invoked once.