final Object start = new Object();
final Exception[] fail = {null};
RubyThreadGroup rtg = (RubyThreadGroup)manager_.eval("ruby", "(java)", 1, 1, "ThreadGroup::Default");
int initialCount = ((RubyArray)rtg.list(Block.NULL_BLOCK)).getLength();
Thread pausyThread = new Thread() {
public void run() {
synchronized (this) {
// Notify the calling thread that we're about to go to sleep the first time