The subsequent exit values are generally returned with the launcher in the event the launcher is called with the wrong arguments, severe errors, or exceptions thrown from the JVM. Having said that, a Java application may choose to return any value by using the API phone Method.exit(exitValue). The values are:Sets the number of lines to prefetch forward with the instance allocation pointer. By default, the amount of traces to prefetch is about to 1:
This can be a professional feature that needs you to definitely also specify the -XX:+UnlockCommercialFeatures solution. This is also an experimental aspect; it may transform in foreseeable future releases.
Disables using biased locking. Some programs with sizeable quantities of uncontended synchronization may perhaps achieve significant speedups with this particular flag enabled, Whilst applications with sure styles of locking might even see slowdowns.
Sets the First dimension (in bytes) in the heap. This price need to be a a number of of 1024 and increased than 1 MB. Append the letter k or K to indicate kilobytes, m or M to point megabytes, g or G to point gigabytes.
Specifies the overall volume of Major memory (in bytes) employed for details retention. Append k or K, to specify the dimensions in KB, m or M to specify the scale in MB, g or G to specify the scale in GB. By default, the scale is about to 462848 bytes.
By default, this feature is disabled as well as collector is chosen routinely according to the configuration from the device and sort of your JVM.
The release argument specifies both the exact Variation string, or a summary of version strings and ranges separated by spaces. A version string is definitely the developer designation with the Variation number in the next variety: 1.x.0_u (where x is the key Edition selection, and u would be the update Edition amount). A Edition assortment is made up of the version string accompanied by a moreover indicator (+) to designate this version or afterwards, or possibly a part of a Edition string followed by an asterisk (*) to designate any Edition string by using a matching prefix.
Sets the most bytecode measurement (in bytes) of a way to generally be inlined. Append the letter k or K to point kilobytes, m or M to indicate megabytes, g or G to indicate gigabytes. By default, the maximum bytecode measurement is about to 35 bytes:
RTM locking code will probably be retried, when it's aborted or occupied, the volume of periods specified by this feature just before falling back to the normal locking mechanism. The default worth for this feature is 5. The -XX:UseRTMLocking solution need to be enabled.
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Don't print the compile instructions. By default, the commands that you just specify Using the -XX:CompileCommand option are printed; one example is, for those who exclude from compilation the indexOf() technique of the see this page String course, then the next is going to be printed to straightforward output:
Only compiled techniques Together with the dimensions more compact than the required size will likely be inlined. By default, the maximum code size is set to one thousand bytes:
Allows issuing of membars on thread state transitions. This selection is disabled by default on all platforms besides ARM servers, the place it's enabled. (It is suggested that you do not disable this feature on ARM servers.)