()
| 35 | } |
| 36 | |
| 37 | private void realize() { |
| 38 | Lock l = lock; |
| 39 | if(l != null) { |
| 40 | l.lock(); |
| 41 | try { |
| 42 | if(fn!=null) { |
| 43 | try { |
| 44 | val = fn.invoke(); |
| 45 | } catch (Throwable t) { |
| 46 | exception = t; |
| 47 | } |
| 48 | fn = null; |
| 49 | lock = null; |
| 50 | } |
| 51 | } finally { |
| 52 | l.unlock(); |
| 53 | } |
| 54 | } |
| 55 | } |
| 56 | |
| 57 | public Object deref() { |
| 58 | if(lock != null) |