Tests VarHandle methods which take effect of load load fence.
[1]JVM options: [-XX:TieredStopAtLevel=1] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| .*, 1.39067116124321E-309 | 0 | ACCEPTABLE_SPEC | Non-atomic access detected, allowed by spec, if r1 is half-value, load x must get a full-value |
| 0.0, .* | 0 | ACCEPTABLE_SPEC | Non-atomic access detected, allowed by spec, when load x in actor2 before fullFence in actor1 |
| 0.0, 0.0 | 70540 | ACCEPTABLE | actor2 observe the variables before actor1 update |
| 0.0, 1.39067116124321E-309 | 30565 | ACCEPTABLE | actor2 observe the variables after x is already updated but var hasn't yet |
| 1.39067116124321E-309, 0.0 | 0 | FORBIDDEN | var won't be observed to be updated before x is updated |
| 1.39067116124321E-309, 1.39067116124321E-309 | 1623725 | ACCEPTABLE | actor2 observe the variables after actor1 update completely |
JVM options: [-server] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| .*, 1.39067116124321E-309 | 0 | ACCEPTABLE_SPEC | Non-atomic access detected, allowed by spec, if r1 is half-value, load x must get a full-value |
| 0.0, .* | 0 | ACCEPTABLE_SPEC | Non-atomic access detected, allowed by spec, when load x in actor2 before fullFence in actor1 |
| 0.0, 0.0 | 7872 | ACCEPTABLE | actor2 observe the variables before actor1 update |
| 0.0, 1.39067116124321E-309 | 3634 | ACCEPTABLE | actor2 observe the variables after x is already updated but var hasn't yet |
| 1.39067116124321E-309, 0.0 | 0 | FORBIDDEN | var won't be observed to be updated before x is updated |
| 1.39067116124321E-309, 1.39067116124321E-309 | 1243404 | ACCEPTABLE | actor2 observe the variables after actor1 update completely |
JVM options: [-client] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| .*, 1.39067116124321E-309 | 0 | ACCEPTABLE_SPEC | Non-atomic access detected, allowed by spec, if r1 is half-value, load x must get a full-value |
| 0.0, .* | 0 | ACCEPTABLE_SPEC | Non-atomic access detected, allowed by spec, when load x in actor2 before fullFence in actor1 |
| 0.0, 0.0 | 7386 | ACCEPTABLE | actor2 observe the variables before actor1 update |
| 0.0, 1.39067116124321E-309 | 4808 | ACCEPTABLE | actor2 observe the variables after x is already updated but var hasn't yet |
| 1.39067116124321E-309, 0.0 | 0 | FORBIDDEN | var won't be observed to be updated before x is updated |
| 1.39067116124321E-309, 1.39067116124321E-309 | 3126496 | ACCEPTABLE | actor2 observe the variables after actor1 update completely |
JVM options: [-server, -XX:+UnlockDiagnosticVMOptions, -XX:+StressLCM, -XX:+StressGCM] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| .*, 1.39067116124321E-309 | 0 | ACCEPTABLE_SPEC | Non-atomic access detected, allowed by spec, if r1 is half-value, load x must get a full-value |
| 0.0, .* | 0 | ACCEPTABLE_SPEC | Non-atomic access detected, allowed by spec, when load x in actor2 before fullFence in actor1 |
| 0.0, 0.0 | 13326 | ACCEPTABLE | actor2 observe the variables before actor1 update |
| 0.0, 1.39067116124321E-309 | 9909 | ACCEPTABLE | actor2 observe the variables after x is already updated but var hasn't yet |
| 1.39067116124321E-309, 0.0 | 0 | FORBIDDEN | var won't be observed to be updated before x is updated |
| 1.39067116124321E-309, 1.39067116124321E-309 | 260865 | ACCEPTABLE | actor2 observe the variables after actor1 update completely |
JVM options: [-client, -XX:-TieredCompilation] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| .*, 1.39067116124321E-309 | 0 | ACCEPTABLE_SPEC | Non-atomic access detected, allowed by spec, if r1 is half-value, load x must get a full-value |
| 0.0, .* | 0 | ACCEPTABLE_SPEC | Non-atomic access detected, allowed by spec, when load x in actor2 before fullFence in actor1 |
| 0.0, 0.0 | 63607 | ACCEPTABLE | actor2 observe the variables before actor1 update |
| 0.0, 1.39067116124321E-309 | 3290 | ACCEPTABLE | actor2 observe the variables after x is already updated but var hasn't yet |
| 1.39067116124321E-309, 0.0 | 0 | FORBIDDEN | var won't be observed to be updated before x is updated |
| 1.39067116124321E-309, 1.39067116124321E-309 | 261193 | ACCEPTABLE | actor2 observe the variables after actor1 update completely |
JVM options: [-Xint] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| .*, 1.39067116124321E-309 | 0 | ACCEPTABLE_SPEC | Non-atomic access detected, allowed by spec, if r1 is half-value, load x must get a full-value |
| 0.0, .* | 0 | ACCEPTABLE_SPEC | Non-atomic access detected, allowed by spec, when load x in actor2 before fullFence in actor1 |
| 0.0, 0.0 | 9638 | ACCEPTABLE | actor2 observe the variables before actor1 update |
| 0.0, 1.39067116124321E-309 | 7859 | ACCEPTABLE | actor2 observe the variables after x is already updated but var hasn't yet |
| 1.39067116124321E-309, 0.0 | 0 | FORBIDDEN | var won't be observed to be updated before x is updated |
| 1.39067116124321E-309, 1.39067116124321E-309 | 46433 | ACCEPTABLE | actor2 observe the variables after actor1 update completely |
JVM options: [-server, -XX:-TieredCompilation] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| .*, 1.39067116124321E-309 | 0 | ACCEPTABLE_SPEC | Non-atomic access detected, allowed by spec, if r1 is half-value, load x must get a full-value |
| 0.0, .* | 0 | ACCEPTABLE_SPEC | Non-atomic access detected, allowed by spec, when load x in actor2 before fullFence in actor1 |
| 0.0, 0.0 | 49963 | ACCEPTABLE | actor2 observe the variables before actor1 update |
| 0.0, 1.39067116124321E-309 | 24011 | ACCEPTABLE | actor2 observe the variables after x is already updated but var hasn't yet |
| 1.39067116124321E-309, 0.0 | 0 | FORBIDDEN | var won't be observed to be updated before x is updated |
| 1.39067116124321E-309, 1.39067116124321E-309 | 882986 | ACCEPTABLE | actor2 observe the variables after actor1 update completely |
JVM options: [-server, -XX:-TieredCompilation, -XX:+UnlockDiagnosticVMOptions, -XX:+StressLCM, -XX:+StressGCM] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| .*, 1.39067116124321E-309 | 0 | ACCEPTABLE_SPEC | Non-atomic access detected, allowed by spec, if r1 is half-value, load x must get a full-value |
| 0.0, .* | 0 | ACCEPTABLE_SPEC | Non-atomic access detected, allowed by spec, when load x in actor2 before fullFence in actor1 |
| 0.0, 0.0 | 29096 | ACCEPTABLE | actor2 observe the variables before actor1 update |
| 0.0, 1.39067116124321E-309 | 10240 | ACCEPTABLE | actor2 observe the variables after x is already updated but var hasn't yet |
| 1.39067116124321E-309, 0.0 | 0 | FORBIDDEN | var won't be observed to be updated before x is updated |
| 1.39067116124321E-309, 1.39067116124321E-309 | 519334 | ACCEPTABLE | actor2 observe the variables after actor1 update completely |