7.3.2 -XX:[+|-]HitachiThreadDumpToStdout

Description

-XX:[+|-]HitachiThreadDumpToStdout specifies whether to output extended thread dumps to the standard output.

The message below is output regardless of the specification of this option. Extended thread dumps are output to Java VM log files.

Writing Java core to file_name^#... OK

#:

The file name is displayed as an absolute path.

Prerequisite option

• -XX:+HitachiThreadDump

Syntax

-XX:[+|-]HitachiThreadDumpToStdout

Specifiable values

Type: String

-XX:+HitachiThreadDumpToStdout

Outputs extended thread dumps to the standard output and to the thread dump output files.

-XX:-HitachiThreadDumpToStdout

Does not output extended thread dumps to the standard output. Extended thread dumps are output to the thread dump output files only.

Default value

If the definition item is omitted:

-XX:+HitachiThreadDumpToStdout

Notes

• If the output to the directory specified in the environment variable JAVACOREDIR fails, the information is output in the current directory.

• If the output to the current directory fails, the information is output as a standard error. In this case, the thread dump is not output as a standard.

• When [+|-] for the options below is specified as "-", some thread information is not output.

  Option name	Information that is not output
  -XX:[+|-]HitachiThreadDumpWithHashCode	hash_value
  -XX:[+|-]HitachiThreadDumpWithCpuTime	user_time, kernel_time
  -XX:[+|-]HitachiThreadDumpWithBlockCount	block_count, standby_count