Tests atomicity of weakCompareAndSet.
JVM options: [-Xint] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false, null | 0 | ACCEPTABLE | both may fail |
| false, true, 2 | 29321 | ACCEPTABLE | actor2 update successfully |
| true, false, object | 20859 | ACCEPTABLE | actor1 update successfully |
| true, true, 2 | 0 | FORBIDDEN | not both shall succeed |
| true, true, object | 0 | FORBIDDEN | not both shall succeed |
JVM options: [-server, -XX:-TieredCompilation] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false, null | 393 | ACCEPTABLE | both may fail |
| false, true, 2 | 2271 | ACCEPTABLE | actor2 update successfully |
| true, false, object | 8476 | ACCEPTABLE | actor1 update successfully |
| 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 | 8329 | ACCEPTABLE | both may fail |
| false, true, 2 | 150909 | ACCEPTABLE | actor2 update successfully |
| true, false, object | 571732 | ACCEPTABLE | actor1 update successfully |
| 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 | 3901 | ACCEPTABLE | both may fail |
| false, true, 2 | 214827 | ACCEPTABLE | actor2 update successfully |
| true, false, object | 418652 | ACCEPTABLE | actor1 update successfully |
| 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 | 9404 | ACCEPTABLE | both may fail |
| false, true, 2 | 124586 | ACCEPTABLE | actor2 update successfully |
| true, false, object | 572100 | ACCEPTABLE | actor1 update successfully |
| 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 | ACCEPTABLE | both may fail |
| false, true, 2 | 710394 | ACCEPTABLE | actor2 update successfully |
| true, false, object | 1257166 | ACCEPTABLE | actor1 update successfully |
| 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 | 1316 | ACCEPTABLE | both may fail |
| false, true, 2 | 51162 | ACCEPTABLE | actor2 update successfully |
| true, false, object | 103392 | ACCEPTABLE | actor1 update successfully |
| 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 | 10649 | ACCEPTABLE | both may fail |
| false, true, 2 | 178766 | ACCEPTABLE | actor2 update successfully |
| true, false, object | 714875 | ACCEPTABLE | actor1 update successfully |
| true, true, 2 | 0 | FORBIDDEN | not both shall succeed |
| true, true, object | 0 | FORBIDDEN | not both shall succeed |