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root/jsr166/jsr166/src/test/tck/ConcurrentHashMapTest.java

Comparing jsr166/src/test/tck/ConcurrentHashMapTest.java (file contents):
Revision 1.58 by jsr166, Mon Jan 8 03:37:59 2018 UTC vs.
Revision 1.61 by jsr166, Fri Oct 5 22:23:34 2018 UTC

#	Line 838 | Line 838 | public class ConcurrentHashMapTest exten
838		assertEquals(mapSize, map.size());
839		}
840
841	+	public void testReentrantComputeIfAbsent() {
842	+	ConcurrentHashMap<Integer, Integer> map = new ConcurrentHashMap<>(16);
843	+	try {
844	+	for (int i = 0; i < 100; i++) { // force a resize
845	+	map.computeIfAbsent(i, key -> findValue(map, key));
846	+	}
847	+	fail("recursive computeIfAbsent should throw IllegalStateException");
848	+	} catch (IllegalStateException success) {}
849	+	}
850	+
851	+	private Integer findValue(ConcurrentHashMap<Integer, Integer> map,
852	+	Integer key) {
853	+	return (key % 5 == 0) ?  key :
854	+	map.computeIfAbsent(key + 1, k -> findValue(map, k));
855	+	}
856	+
857		}

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