setContents(Transferable contents, ClipboardOwner owner) {
public synchronized void setContents(Transferable contents, ClipboardOwner owner) {
setContents(Transferable contents, ClipboardOwner owner){  if (this.owner != owner)    if (this.owner != null)      this.owner.lostOwnership(this, contents);   this.owner = owner;  this.contents = contents;}