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From "Vladimir Ivanov (JIRA)" <j...@apache.org>
Subject [jira] Created: (HARMONY-3409) [drlvm][options] help on 'internal system property' should be available from command line
Date Fri, 16 Mar 2007 10:10:09 GMT
[drlvm][options] help on 'internal system property' should be available from command line
-----------------------------------------------------------------------------------------

                 Key: HARMONY-3409
                 URL: https://issues.apache.org/jira/browse/HARMONY-3409
             Project: Harmony
          Issue Type: Bug
          Components: DRLVM
            Reporter: Vladimir Ivanov
            Priority: Minor


Help on 'internal system property' should be available from command line. 
Some time ago the option to specify 'system property' was updated but help for this properties
was just removed.
Some commands were tried:
>java.exe -help
>java.exe -help properties
>java.exe -X
>java.exe -XX 
but no one say about it.

Execution log:
>java -help
Usage: java [-options] class [args...]
        (to execute a method main() of the class)
    or java [-options] -jar jarfile [args...]
        (to execute the jar file)

where options include:
    -classpath <class search path of directories and zip/jar files>
    -cp        <class search path of directories and zip/jar files>
                  A ';' separated list of directories, jar archives,
                  and zip archives to search for class file
    -D<name>=<value>
                  set a system property
    -showversion  print product version and continue
    -version      print product version and exit
    -verbose[:class|:gc|:jni]
                  enable verbose output
    -agentlib:<library name>[=<agent options>]
                  load JVMTI agent library, library name is platform independent
    -agentpath:<library name>[=<agent options]
                  load JVMTI agent library, library name is platform dependent
    -verify
                  do full bytecode verification
    -noverify
                  do no bytecode verification
    -enableassertions[:<package>...|:<class>]
    -ea[:<package>...|:<class>]
                  enable assertions
    -disableassertions[:<package>...|:<class>]
    -da[:<package>...|:<class>]
                  disable assertions
    -esa | -enablesystemassertions
                  enable system assertions
    -dsa | -disablesystemassertions
                  disable system assertions
    -? -help      print this help message
    -help properties
                  help on system properties
    -X            print help on non-standard options

>java -help properties
Usage: java [-options] class [args...]
        (to execute a method main() of the class)
    or java [-options] -jar jarfile [args...]
        (to execute the jar file)

where options include:
    -classpath <class search path of directories and zip/jar files>
    -cp        <class search path of directories and zip/jar files>
                  A ';' separated list of directories, jar archives,
                  and zip archives to search for class file
    -D<name>=<value>
                  set a system property
    -showversion  print product version and continue
    -version      print product version and exit
    -verbose[:class|:gc|:jni]
                  enable verbose output
    -agentlib:<library name>[=<agent options>]
                  load JVMTI agent library, library name is platform independent
    -agentpath:<library name>[=<agent options]
                  load JVMTI agent library, library name is platform dependent
    -verify
                  do full bytecode verification
    -noverify
                  do no bytecode verification
    -enableassertions[:<package>...|:<class>]
    -ea[:<package>...|:<class>]
                  enable assertions
    -disableassertions[:<package>...|:<class>]
    -da[:<package>...|:<class>]
                  disable assertions
    -esa | -enablesystemassertions
                  enable system assertions
    -dsa | -disablesystemassertions
                  disable system assertions
    -? -help      print this help message
    -help properties
                  help on system properties
    -X            print help on non-standard options

>java -X
    -Xbootclasspath:<PATH>
              Set bootclasspath to the specified value
    -Xbootclasspath/a:<PATH>
              Append specified directories and files to bootclasspath
    -Xbootclasspath/p:<PATH>
              Prepend specified directories and files to bootclasspath
    -Xjit <JIT options>
              Specify JIT specific options
    -Xms<size>
              Set Java heap size
    -Xmx<size>
              Set maximum Java heap size
    -Xdebug
              Does nothing, this is a compatibility option
    -Xnoagent
              Does nothing, this is a compatibility option
    -Xrun
              Specify debugger agent library
    -Xverbose[:<category>[:<file>]
              Switch logging on [for specified category only
              [and log that category to a file]]
    -Xwarn[:<category>[:<file>]
              Switch verbose logging off [for specified category only
              [and log that category to a file]]
    -Xverboseconf:<file>
              Set up logging via log4cxx configuration file
    -Xverboselog:<file>
              Log verbose output to a file
    -Xverify[:none|all]
              Do full bytecode verification
    -Xinvisible
              Retain invisible annotations at runtime
    -Xfileline
              Add source information to logging messages
    -Xthread
              Add thread id to logging messages
    -Xcategory
              Add category name to logging messages
    -Xtimestamp
              Add timestamp to logging messages
    -Xfunction
              Add function signature to logging messages

    -Xlog[:<category>[:<file>]
              Switch debug logging on [for specified category only
              [and log that category to a file]]
    -Xtrace[:<category>[:<file>]
              Switch trace logging on [for specified category only
              [and log that category to a file]]

    -Xstats:<mask>
              Generates different statistics

    -Xint
              Use interpreter to execute the program
    -Xgc:<gc options>
              Specify gc specific options
    -Xem:<em options>
              Specify em specific options
    -Xdumpstubs
              Writes stubs generated by LIL to disk
    -Xparallel_jit
              Launch compilation in parallel (default)
    -Xno_parallel_jit
              Do not launch compilation in parallel
    -Xdumpfile:<file>
              Specifies a file name for the dump
    -XX:<name>=<value>
              set an internal system property

>java -XX
Unknown option -XX

Use java -help to get help on command line options



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