Tests atomicity of compareAndSet.
JVM options: [-client] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false, 0 | 0 | FORBIDDEN | not both shall fail |
| false, true, -2 | 565769 | ACCEPTABLE | actor2 update successfully |
| true, false, -1 | 818281 | ACCEPTABLE | actor1 update successfully |
| 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 | 658401 | ACCEPTABLE | actor2 update successfully |
| true, false, -1 | 909929 | ACCEPTABLE | actor1 update successfully |
| 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 | 319653 | ACCEPTABLE | actor2 update successfully |
| true, false, -1 | 433327 | ACCEPTABLE | actor1 update successfully |
| 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 | 579856 | ACCEPTABLE | actor2 update successfully |
| true, false, -1 | 838394 | ACCEPTABLE | actor1 update successfully |
| true, true, -1 | 0 | FORBIDDEN | not both shall succeed |
| true, true, -2 | 0 | FORBIDDEN | not both shall succeed |
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 | 1007288 | ACCEPTABLE | actor2 update successfully |
| true, false, -1 | 1265282 | ACCEPTABLE | actor1 update successfully |
| 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 | 302377 | ACCEPTABLE | actor2 update successfully |
| true, false, -1 | 1074753 | ACCEPTABLE | actor1 update successfully |
| 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 | 25216 | ACCEPTABLE | actor2 update successfully |
| true, false, -1 | 14604 | ACCEPTABLE | actor1 update successfully |
| 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 | 234798 | ACCEPTABLE | actor2 update successfully |
| true, false, -1 | 465362 | ACCEPTABLE | actor1 update successfully |
| true, true, -1 | 0 | FORBIDDEN | not both shall succeed |
| true, true, -2 | 0 | FORBIDDEN | not both shall succeed |