Tests atomicity of weakCompareAndSet.
JVM options: [-server, -XX:-TieredCompilation] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false, null | 1475 | ACCEPTABLE | both may fail |
| false, true, 2 | 137073 | ACCEPTABLE | actor2 update successfully |
| true, false, object | 443402 | 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 | 246426 | ACCEPTABLE | actor2 update successfully |
| true, false, object | 593094 | 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 | 1 | ACCEPTABLE | both may fail |
| false, true, 2 | 11135 | ACCEPTABLE | actor2 update successfully |
| true, false, object | 27794 | 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 | 327 | ACCEPTABLE | both may fail |
| false, true, 2 | 128262 | ACCEPTABLE | actor2 update successfully |
| true, false, object | 514601 | 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 | 1980 | ACCEPTABLE | both may fail |
| false, true, 2 | 359129 | ACCEPTABLE | actor2 update successfully |
| true, false, object | 726651 | ACCEPTABLE | actor1 update successfully |
| 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 | ACCEPTABLE | both may fail |
| false, true, 2 | 46777 | ACCEPTABLE | actor2 update successfully |
| true, false, object | 10843 | 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 | 925 | ACCEPTABLE | both may fail |
| false, true, 2 | 101849 | ACCEPTABLE | actor2 update successfully |
| true, false, object | 1549736 | 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 | 1156 | ACCEPTABLE | both may fail |
| false, true, 2 | 665494 | ACCEPTABLE | actor2 update successfully |
| true, false, object | 1345590 | ACCEPTABLE | actor1 update successfully |
| true, true, 2 | 0 | FORBIDDEN | not both shall succeed |
| true, true, object | 0 | FORBIDDEN | not both shall succeed |