JaCoLine - Viewing Historical Command Line #13212
| Analysis Date | JDK | Operating System | CPU Architecture | Debug JVM? |
|---|---|---|---|---|
| 2026-01-08 | OpenJDK8 | Linux | x86 | N |
Results
Switches Identified
Switch Analysis
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| UnlockExperimentalVMOptions | boolean | Enable normal processing of flags relating to experimental features |
false | true |
| Analysis | OK | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| UseShenandoahGC | boolean | Use the Shenandoah garbage collector | false | true |
| Analysis | This switch is not available until OpenJDK12. Your analysis was for OpenJDK8 | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| ShenandoahGCHeuristics | string | GC heuristics to use. This fine-tunes the GC mode selected, by choosing when to start the GC, how much to process on each cycle, and what other features to automatically enable. Possible values are: adaptive - adapt to maintain the given amount of free heap at all times, even during the GC cycle; static - trigger GC when free heap falls below the threshold; aggressive - run GC continuously, try to evacuate everything; compact - run GC more frequently and with deeper targets to free up more memory. |
adaptive | adaptive |
| Analysis | This switch is not available until OpenJDK11. Your analysis was for OpenJDK8 | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| ShenandoahGCMode | string | GC mode to use. Among other things, this defines which barriers are in in use. Possible values are: satb - snapshot-at-the-beginning concurrent GC (three pass mark-evac-update); iu - incremental-update concurrent GC (three pass mark-evac-update); passive - stop the world GC only (either degenerated or full) |
satb | generational |
| Analysis | This switch is not available until OpenJDK11. Your analysis was for OpenJDK8 | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| ParallelGCThreads | int | Number of parallel threads parallel gc will use | 0 | 4 |
| Analysis | OK | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| ConcGCThreads | int | Number of threads concurrent gc will use | 0 | 2 |
| Analysis | OK | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| UseStringDeduplication | boolean | Use string deduplication | false | true |
| Analysis | OK | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| UseCompactObjectHeaders | boolean | Use compact 64-bit object headers in 64-bit VM | false | true |
| Analysis | This switch is not available until OpenJDK24. Your analysis was for OpenJDK8 | |||