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Enables the dumping in the Java heap to some file in The present Listing by utilizing the heap profiler (HPROF) each time a java.lang.OutOfMemoryError exception is thrown.
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By default, this selection is disabled along with the JVM operates without the professional attributes. Once they're enabled for any JVM course of action, it isn’t attainable to disable their use for that process.
Selection and constraints are validated possibly when all flags have their values established in the course of JVM initialization or even a flag’s price is improved all through runtime (such as using the jcmd tool). The JVM is terminated if a worth violates possibly the array or constraint Test and an ideal error concept is printed around the error stream.
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Use a level of debug for some of the knowledge, or a degree of trace for all of what was logged for PrintAdaptiveSizePolicy.
Sets the Java heap occupancy threshold that triggers click here for info a marking cycle. The default occupancy is forty five p.c of all the Java heap.
The subsequent measures exhibit how to make a typical archive that can be shared by distinctive applications. Only the courses from widespread.
Unlawful-entry operations to inside APIs from code on The category path are allowed by default in JDK nine.
Hundreds the specified indigenous agent library. Once the library name, a comma-divided listing of selections distinct into the library can be employed.
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The -enableassertions (-ea) option applies to all class loaders and to procedure courses (which don’t have a class loader). There’s one exception to this rule: If the option is supplied with no arguments, then it doesn’t use to technique lessons. This causes it to be easy to empower assertions in all courses except for click here to find out more process classes. The -enablesystemassertions option supplies a separate swap to empower assertions in all process lessons.
-XX:SharedArchiveConfigFile=shared_config_file The option is utilized to specify added shared info extra to your archive file. In JDK 9, it supports strings and symbols. The string details and image click to read information must be generated by the jcmd Software attaching into a jogging JVM process. See jcmd.