Tests weakCompareAndSet contend with strong compareAndSet.
JVM options: [-server, -XX:-TieredCompilation] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false, null | 0 | FORBIDDEN | not both shall fail |
| false, true, 2 | 572184 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, object | 418966 | ACCEPTABLE | actor2 execute after actor1 |
| true, true, 2 | 0 | FORBIDDEN | not both shall succeed |
| true, true, object | 0 | FORBIDDEN | not both shall succeed |
JVM options: [-Xint] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false, null | 0 | FORBIDDEN | not both shall fail |
| false, true, 2 | 44620 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, object | 27060 | ACCEPTABLE | actor2 execute after actor1 |
| true, true, 2 | 0 | FORBIDDEN | not both shall succeed |
| true, true, object | 0 | FORBIDDEN | not both shall succeed |
JVM options: [-server, -XX:+UnlockDiagnosticVMOptions, -XX:+StressLCM, -XX:+StressGCM] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false, null | 0 | FORBIDDEN | not both shall fail |
| false, true, 2 | 614626 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, object | 829284 | ACCEPTABLE | actor2 execute after actor1 |
| true, true, 2 | 0 | FORBIDDEN | not both shall succeed |
| true, true, object | 0 | FORBIDDEN | not both shall succeed |
JVM options: [-client] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false, null | 0 | FORBIDDEN | not both shall fail |
| false, true, 2 | 800225 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, object | 935875 | ACCEPTABLE | actor2 execute after actor1 |
| true, true, 2 | 0 | FORBIDDEN | not both shall succeed |
| true, true, object | 0 | FORBIDDEN | not both shall succeed |
JVM options: [-client, -XX:-TieredCompilation] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false, null | 0 | FORBIDDEN | not both shall fail |
| false, true, 2 | 324386 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, object | 293984 | ACCEPTABLE | actor2 execute after actor1 |
| true, true, 2 | 0 | FORBIDDEN | not both shall succeed |
| true, true, object | 0 | FORBIDDEN | not both shall succeed |
JVM options: [-server] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false, null | 0 | FORBIDDEN | not both shall fail |
| false, true, 2 | 645284 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, object | 800446 | ACCEPTABLE | actor2 execute after actor1 |
| true, true, 2 | 0 | FORBIDDEN | not both shall succeed |
| true, true, object | 0 | FORBIDDEN | not both shall succeed |
JVM options: [-server, -XX:-TieredCompilation, -XX:+UnlockDiagnosticVMOptions, -XX:+StressLCM, -XX:+StressGCM] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false, null | 0 | FORBIDDEN | not both shall fail |
| false, true, 2 | 155715 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, object | 46555 | ACCEPTABLE | actor2 execute after actor1 |
| true, true, 2 | 0 | FORBIDDEN | not both shall succeed |
| true, true, object | 0 | FORBIDDEN | not both shall succeed |
JVM options: [-XX:TieredStopAtLevel=1] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false, null | 0 | FORBIDDEN | not both shall fail |
| false, true, 2 | 439604 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, object | 1193696 | ACCEPTABLE | actor2 execute after actor1 |
| true, true, 2 | 0 | FORBIDDEN | not both shall succeed |
| true, true, object | 0 | FORBIDDEN | not both shall succeed |