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src/java.base/share/classes/java/util/concurrent/locks/StampedLock.java

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8197531: Miscellaneous changes imported from jsr166 CVS 2018-04
Reviewed-by: martin, psandoz


1597         return (interrupted || Thread.interrupted()) ? INTERRUPTED : 0L;
1598     }
1599 
1600     // VarHandle mechanics
1601     private static final VarHandle STATE;
1602     private static final VarHandle WHEAD;
1603     private static final VarHandle WTAIL;
1604     private static final VarHandle WNEXT;
1605     private static final VarHandle WSTATUS;
1606     private static final VarHandle WCOWAIT;
1607     static {
1608         try {
1609             MethodHandles.Lookup l = MethodHandles.lookup();
1610             STATE = l.findVarHandle(StampedLock.class, "state", long.class);
1611             WHEAD = l.findVarHandle(StampedLock.class, "whead", WNode.class);
1612             WTAIL = l.findVarHandle(StampedLock.class, "wtail", WNode.class);
1613             WSTATUS = l.findVarHandle(WNode.class, "status", int.class);
1614             WNEXT = l.findVarHandle(WNode.class, "next", WNode.class);
1615             WCOWAIT = l.findVarHandle(WNode.class, "cowait", WNode.class);
1616         } catch (ReflectiveOperationException e) {
1617             throw new Error(e);
1618         }
1619     }
1620 }



1597         return (interrupted || Thread.interrupted()) ? INTERRUPTED : 0L;
1598     }
1599 
1600     // VarHandle mechanics
1601     private static final VarHandle STATE;
1602     private static final VarHandle WHEAD;
1603     private static final VarHandle WTAIL;
1604     private static final VarHandle WNEXT;
1605     private static final VarHandle WSTATUS;
1606     private static final VarHandle WCOWAIT;
1607     static {
1608         try {
1609             MethodHandles.Lookup l = MethodHandles.lookup();
1610             STATE = l.findVarHandle(StampedLock.class, "state", long.class);
1611             WHEAD = l.findVarHandle(StampedLock.class, "whead", WNode.class);
1612             WTAIL = l.findVarHandle(StampedLock.class, "wtail", WNode.class);
1613             WSTATUS = l.findVarHandle(WNode.class, "status", int.class);
1614             WNEXT = l.findVarHandle(WNode.class, "next", WNode.class);
1615             WCOWAIT = l.findVarHandle(WNode.class, "cowait", WNode.class);
1616         } catch (ReflectiveOperationException e) {
1617             throw new ExceptionInInitializerError(e);
1618         }
1619     }
1620 }
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