Shows Variation information and facts and afterwards exits. This feature is comparable to the -showversion solution other than the latter doesn’t instruct the JVM to exit immediately after displaying version data.
This helps to determine the flags that should be implemented. The automatic testing framework can skip People flags that don’t have values and aren’t executed.
Logs messages tagged with precisely the gc and meta tags utilizing the trace amount to stdout. The default configuration for all other messages at level warning is still be in outcome.
Sets the size of your allocated course metadata Area that triggers a rubbish assortment The very first time it’s exceeded. This threshold for the rubbish collection is greater or lessened based on the volume of metadata employed. The default measurement depends on the System.
Sets The share of your heap occupancy (0 to 100) at which to get started on a concurrent GC cycle. It’s employed by rubbish collectors that induce a concurrent GC cycle based on the occupancy of all the heap, not simply among the generations (one example is, the G1 rubbish collector).
.., the switch permits assertions in the desired bundle and any subpackages. If your argument is simply ..., then the switch enables assertions from the unnamed package deal in the current Operating directory. With the classname argument, the change permits assertions in the specified class.
Make use of a amount of debug for some of the data, or a amount of trace for all of what was logged for PrintAdaptiveSizePolicy.
Sets the maximum bytecode dimension (in bytes) of a technique for being inlined. Append the letter k or K to indicate kilobytes, m or M to additional hints point megabytes, or g or G to point gigabytes. By default, the utmost bytecode size is ready to 35 bytes:
Notice that in the outdated logging, PrintReferenceGC had an influence only if PrintGCDetails was also enabled.
Executes a software encapsulated within a JAR file. The filename argument will be the identify of a JAR file by using a manifest which contains a line in the form Most important-Course:classname that defines The category with the public static void primary(String args) strategy that serves as your application's start line.
Sets the most long term era Place sizing (in bytes). company website This option was deprecated in JDK 8 and superseded by the -XX:MaxMetaspaceSize choice.
alert: This manner is just like permit apart from that a warning information is issued for each illegal reflective-entry operation.
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Permits printing of gathered indigenous memory Get More Info tracking info at JVM exit when indigenous memory monitoring is enabled (see -XX:NativeMemoryTracking). By default, this feature is disabled and native memory monitoring information isn’t printed.