4.1 List of commands used in the Java VM

The following table lists the commands used in the Java VM.

Command used in system operation

Command name	Classification	Summary
car_tar_gz	Core archive functionality	Groups libraries relevant to the core file, etc., and outputs them to a single archive file. The file is compressed using the gzip command.
car_tar_Z	Core archive functionality	Groups libraries relevant to the core file, etc., and outputs them to a single archive file. The file is compressed using the compress command.
eheapprof	Output of an extended thread dump with Explicit heap detailed information.	Outputs, for the java process with the specified process ID, an extended thread dump that includes Explicit heap detailed information.
java_hras	Execution of Java application programs that do not work with Application Server	Enables proprietary functionality used for troubleshooting, and starts the Java VM.
javacore	Acquisition of a core file and thread dump	Simultaneously acquires the core file and thread dumps when the command is executed.
javagc	Forced generation of GC	Forces generation of full GC at any timing, for the java process with the specified process ID.
javatrace	Collection of trace information.	Collects stack trance information from a core file.
jheapprof	Output of an extended thread dump with class-based statistics.	Outputs, for the java process with the specified process ID, an extended thread dump that includes class-based statistics.
jheapprofanalyzer	Output of a class-based statistics analysis file to a CSV file.	Outputs a class-based statistics analysis file to a CSV file.

Important note

In a command argument, specify a value that can be specified for the command. If you specify another value, operation is not guaranteed.
Even if a command ends normally, an error might have occurred. Check the message log and stack trace log.