Tests weakCompareAndSet contend with strong compareAndSet.
JVM options: [-server, -XX:-TieredCompilation] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false, 0 | 0 | FORBIDDEN | not both shall fail |
| false, true, -2 | 247506 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, -1 | 415214 | ACCEPTABLE | actor2 execute after actor1 |
| true, true, -1 | 0 | FORBIDDEN | not both shall succeed |
| true, true, -2 | 0 | FORBIDDEN | not both shall succeed |
JVM options: [-Xint] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false, 0 | 0 | FORBIDDEN | not both shall fail |
| false, true, -2 | 85032 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, -1 | 24508 | ACCEPTABLE | actor2 execute after actor1 |
| true, true, -1 | 0 | FORBIDDEN | not both shall succeed |
| true, true, -2 | 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, 0 | 0 | FORBIDDEN | not both shall fail |
| false, true, -2 | 364564 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, -1 | 496386 | ACCEPTABLE | actor2 execute after actor1 |
| true, true, -1 | 0 | FORBIDDEN | not both shall succeed |
| true, true, -2 | 0 | FORBIDDEN | not both shall succeed |
JVM options: [-client] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false, 0 | 0 | FORBIDDEN | not both shall fail |
| false, true, -2 | 268054 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, -1 | 502326 | ACCEPTABLE | actor2 execute after actor1 |
| true, true, -1 | 0 | FORBIDDEN | not both shall succeed |
| true, true, -2 | 0 | FORBIDDEN | not both shall succeed |
JVM options: [-server] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false, 0 | 0 | FORBIDDEN | not both shall fail |
| false, true, -2 | 392643 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, -1 | 774197 | ACCEPTABLE | actor2 execute after actor1 |
| true, true, -1 | 0 | FORBIDDEN | not both shall succeed |
| true, true, -2 | 0 | FORBIDDEN | not both shall succeed |
JVM options: [-XX:TieredStopAtLevel=1] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false, 0 | 0 | FORBIDDEN | not both shall fail |
| false, true, -2 | 221039 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, -1 | 605531 | ACCEPTABLE | actor2 execute after actor1 |
| true, true, -1 | 0 | FORBIDDEN | not both shall succeed |
| true, true, -2 | 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, 0 | 0 | FORBIDDEN | not both shall fail |
| false, true, -2 | 375517 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, -1 | 706183 | ACCEPTABLE | actor2 execute after actor1 |
| true, true, -1 | 0 | FORBIDDEN | not both shall succeed |
| true, true, -2 | 0 | FORBIDDEN | not both shall succeed |
JVM options: [-client, -XX:-TieredCompilation] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false, 0 | 0 | FORBIDDEN | not both shall fail |
| false, true, -2 | 127854 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, -1 | 405756 | ACCEPTABLE | actor2 execute after actor1 |
| true, true, -1 | 0 | FORBIDDEN | not both shall succeed |
| true, true, -2 | 0 | FORBIDDEN | not both shall succeed |