众包公共Java系统属性和已知值的完整列表 [英] Crowdsourcing a Complete list of Common Java System Properties and Known Values

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问题描述

我受到了另一个问题的启发：最佳实践使用Java系统属性

我目前正在寻找Java系统属性和可能值的完整列表。我正在研究一个简单的类来简化它们的使用（如果你有兴趣，获取源和背景信息（我的博客））。在这个类中，我尝试提供以下内容：

I'm currently looking for a complete list of Java system properties and possible values. I'm working on a simple class to simplify use of them (If you're interested, get the source and background info (my blog)). With this class, I try to provide the following:


  • 对Java系统属性的简单一致访问（无字符串常量）

  • 完整可用属性及其可能值的文档 - 在我的IDE中（即自动完成，内联Javadoc）

  • 修复不一致性返回值和/或命名

  • 确保java.io.tmpdir存在 - 实际上这是我做这一切的主要原因：）

  • simple and consistent access to Java system properties (no String constants)
  • full documentation of available properties and their possible values – within my IDE (i.e. auto-completion, inline Javadoc)
  • fix inconsistencies in returned values and/or naming
  • make sure that java.io.tmpdir exists – acutally that’s the main reason why I’m doing all this :)

要获得完整的文档和可用属性的完整列表（即使可用性严重依赖JVM的那些），我希望你下载源，运行它并发布您的结果。我会相应更新课程，并在指定地点保持可用状态。希望它会让你们中的一些人感到轻松：）

To get full documentation and a complete list of available properties (even those where availability is heavily JVM-dependent), I'd like you to download the source, run it and post your results. I'll update the class accordingly and keep it available at the given location. Hopefully, it will ease live of some of you out there :)

编辑：

我不是寻找标准属性，如 System.getProperties（）或我系统上可用的所有属性。我正在尝试创建一个完整的系统属性列表 - 甚至是那些与供应商，jvm或版本相关的属性 - 那些不能保证存在且文档稀疏或难以找到的。属性如

I'm not looking for standard properties as described by System.getProperties() or all properties that are available on my system. I'm trying to create a comprehensive list of system properties - even those that are vendor, jvm or version related - those that aren't guaranteed to exist and whose documentation is sparse or hard to find. Properties like


  • sun.desktop（仅限Linux，例如gnome），

  • awt。 toolkit（仅限Mac，例如apple.awt.CToolkit）

  • sun.cpu.endian（仅限Sun JVM）

  • ...

  • sun.desktop (Linux only, e.g. "gnome"),
  • awt.toolkit (Mac only, e.g. apple.awt.CToolkit)
  • sun.cpu.endian (Sun JVMs only)
  • ...

我很乐意让其他人运行我的代码并发布他们的结果，以便编制一个全面的列表（包含大量属性及其属性的文档）可以使用易于使用的Java枚举形式的可能值）：

I'd love to get others to run my code and post their results in order to compile a comprehensive list (with extensive documentation of properties and their possible values) in the form of a Java enum that's easy to use e.g.:

String file = SystemProperty.JAVA_IO_TMPDIR + "file.txt";

而不是

String tmp = System.getProperty("java.io.tmpdir");
if (!tmp.endsWith(File.separator)
    tmp += File.separator;
new File(tmp).mkdirs(); // make sure tmp exists
String file = tmp + "file.txt";

所以请运行该代码并发布您的调查结果。这是一个简单的脚本，可以帮助您入门：

So please run that code and post your findings. Here is a simple script to get you started:

#!/bin/bash
# download and run
# you should really look at the code first, as you can't be sure
# that I'm a trustworthy guy ;)
wget -N http://techblog.molindo.at/files/SystemProperty.java
javac SystemProperty.java
java SystemProperty

（我知道这不是一个真正的问题，而是人群采购的事情。我希望没有人介意）

赏金：

由于此问题没有正确答案，奖金将授予发现大多数新系统属性的人。作为提示：在JVM（Groovy，Scala，JRuby，...）之上测试非标准JVM（J2ME，Android，GCJ，OpenJDK，Apache Harmony，...）和常用语言应该特别容易。

As there is no correct answer to this question, the bounty will be awarded to the person who discovers most new system properties. As a hint: testing non-standard JVMs (J2ME, Android, GCJ, OpenJDK, Apache Harmony, ...) and common languages on top of the JVM (Groovy, Scala, JRuby, ..) should be especially yielding.

当前领导者：


  1. rsp 19个已发现的属性

  2. Boris 14个已发现的属性

  3. Joa Ebert 8发现属性

  4. Suraj Chandran 1发现ed属性

  1. rsp 19 discovered properties
  2. Boris 14 discovered properties
  3. Joa Ebert 8 discovered properties
  4. Suraj Chandran 1 discovered property

顺便说一句，我打算将最终结果作为Maven工件发布，并尽快将其上传到中央存储库我有足够的输入。

Btw, I'm planning to release the final result as a Maven artifact and upload it to the central repository as soon as I have enough input.

更新：公共存储库，最后

SystemProperty.java 现在可以在GitHub上获得，作为 molindo-utils项目的一部分。 molindo-utils目前可用作 1.0- SNAPSHOT通过Sonatype的OSS存储库。一旦它准备好发布，它也将同步到Maven中心。

SystemProperty.java is now available on GitHub, as part of the molindo-utils project. molindo-utils is currently available as 1.0-SNAPSHOT through Sonatype's OSS repository. As soon as it's ready for release, it will be synchronized to Maven central as well.

<repositories>
  <repository>
    <id>oss.sonatype.org</id>
    <url>https://oss.sonatype.org/content/repositories/snapshots/</url>
    <releases><enabled>false</enabled></releases>
    <snapshots><enabled>true</enabled></snapshots>
  </repository>
</repositories>

<dependencies>
  <dependency>
    <groupId>at.molindo</groupId>
    <artifactId>molindo-utils</artifactId>
    <version>1.0-SNAPSHOT</version>
  </dependency>
</dependencies>


推荐答案

OS AIX 5.3，Java版本：

OS AIX 5.3, Java version:

java version "1.5.0"
Java(TM) 2 Runtime Environment, Standard Edition (build pap32devifx-20090506 (SR9-SSU +PK76176+IZ44410+IZ44495))
IBM J9 VM (build 2.3, J2RE 1.5.0 IBM J9 2.3 AIX ppc-32 j9vmap3223ifx-20090225 (JIT enabled)
J9VM - 20090224_30451_bHdSMr
JIT  - 20081112_1511ifx1_r8
GC   - 200811_07)

SystemProperty输出：

SystemProperty output:

FILE_ENCODING: file.encoding=ISO8859-1 (read-only)
FILE_ENCODING_PKG: file.encoding.pkg=null (read-only)
FILE_SEPARATOR: file.separator=/ (read-only)
JAVA_AWT_GRAPHICSENV: java.awt.graphicsenv=sun.awt.X11GraphicsEnvironment (read-only)
JAVA_AWT_PRINTERJOB: java.awt.printerjob=sun.print.PSPrinterJob (read-only)
JAVA_CLASS_PATH: java.class.path=. (read-only)
JAVA_CLASS_VERSION: java.class.version=49.0 (read-only)
JAVA_COMPILER: java.compiler=j9jit23 (read-only)
JAVA_ENDORSED_DIRS: java.endorsed.dirs=null (read-only)
JAVA_EXT_DIRS: java.ext.dirs=/prj/was/java/jre/lib/ext (read-only)
JAVA_HOME: java.home=/prj/was/java/jre (read-only)
JAVA_IO_TMPDIR: java.io.tmpdir=/tmp/
JAVA_LIBRARY_PATH: java.library.path=/prj/was/java/jre/bin:/prj/was/java/jre/bin:/prj/was/java/jre/bin/classic:/prj/was/java/jre/bin:/prj/was/java/jre/bin/j9vm:/usr/lib (read-only)
JAVA_RUNTIME_NAME: java.runtime.name=Java(TM) 2 Runtime Environment, Standard Edition (read-only)
JAVA_RUNTIME_VERSION: java.runtime.version=pap32devifx-20090506 (SR9-SSU +PK76176+IZ44410+IZ44495) (read-only)
JAVA_SPECIFICATION_NAME: java.specification.name=Java Platform API Specification (read-only)
JAVA_SPECIFICATION_VENDOR: java.specification.vendor=Sun Microsystems Inc. (read-only)
JAVA_SPECIFICATION_VERSION: java.specification.version=1.5 (read-only)
JAVA_VERSION: java.version=1.5.0 (read-only)
JAVA_VENDOR: java.vendor=IBM Corporation (read-only)
JAVA_VENDOR_URL: java.vendor.url=http://www.ibm.com/ (read-only)
JAVA_VENDOR_URL_BUG: java.vendor.url.bug=null (read-only)
JAVA_VM_INFO: java.vm.info=J2RE 1.5.0 IBM J9 2.3 AIX ppc-32 j9vmap3223ifx-20090225 (JIT enabled)
J9VM - 20090224_30451_bHdSMr
JIT  - 20081112_1511ifx1_r8
GC   - 200811_07 (read-only)
JAVA_VM_NAME: java.vm.name=IBM J9 VM (read-only)
JAVA_VM_SPECIFICATION_NAME: java.vm.specification.name=Java Virtual Machine Specification (read-only)
JAVA_VM_SPECIFICATION_VENDOR: java.vm.specification.vendor=Sun Microsystems Inc. (read-only)
JAVA_VM_SPECIFICATION_VERSION: java.vm.specification.version=1.0 (read-only)
JAVA_VM_VERSION: java.vm.version=2.3 (read-only)
JAVA_VM_VENDOR: java.vm.vendor=IBM Corporation (read-only)
LINE_SEPARATOR: line.separator=
 (read-only)
OS_NAME: os.name=AIX (read-only)
OS_ARCH: os.arch=ppc (read-only)
OS_VERSION: os.version=5.3 (read-only)
PATH_SEPARATOR: path.separator=: (read-only)
SUN_ARCH_DATA_MODEL: sun.arch.data.model=32 (read-only)
SUN_BOOT_CLASS_PATH: sun.boot.class.path=/prj/was/java/jre/lib/vm.jar:/prj/was/java/jre/lib/core.jar:/prj/was/java/jre/lib/charsets.jar:/prj/was/java/jre/lib/graphics.jar:/prj/was/java/jre/lib/security.jar:/prj/was/java/jre/lib/ibmpkcs.jar:/prj/was/java/jre/lib/ibmorb.jar:/prj/was/java/jre/lib/ibmcfw.jar:/prj/was/java/jre/lib/ibmorbapi.jar:/prj/was/java/jre/lib/ibmjcefw.jar:/prj/was/java/jre/lib/ibmjgssprovider.jar:/prj/was/java/jre/lib/ibmjsseprovider2.jar:/prj/was/java/jre/lib/ibmjaaslm.jar:/prj/was/java/jre/lib/ibmcertpathprovider.jar:/prj/was/java/jre/lib/server.jar:/prj/was/java/jre/lib/xml.jar (read-only)
SUN_BOOT_LIBRARY_PATH: sun.boot.library.path=/prj/was/java/jre/bin (read-only)
SUN_CPU_ENDIAN: sun.cpu.endian=null (read-only)
SUN_CPU_ISALIST: sun.cpu.isalist=null (read-only)
SUN_IO_UNICODE_ENCODING: sun.io.unicode.encoding=UnicodeBig (read-only)
SUN_JAVA_LAUNCHER: sun.java.launcher=null (read-only)
SUN_JNU_ENCODING: sun.jnu.encoding=ISO8859-1 (read-only)
SUN_MANAGEMENT_COMPILER: sun.management.compiler=null (read-only)
SUN_OS_PATCH_LEVEL: sun.os.patch.level=null (read-only)
USER_COUNTRY: user.country=US (read-only)
USER_DIR: user.dir=/tmp/avd (read-only)
USER_HOME: user.home=/root (read-only)
USER_LANGUAGE: user.language=en (read-only)
USER_NAME: user.name=root (read-only)
USER_TIMEZONE: user.timezone= (read-only)
USER_VARIANT: user.variant= (read-only)
SUN_DESKTOP: sun.desktop=null (read-only)
USER_ZONEINFO_DIR: user.zoneinfo.dir=null (read-only)
AWT_NATIVE_DOUBLE_BUFFERING: awt.nativeDoubleBuffering=null (read-only)
AWT_TOOLKIT: awt.toolkit=null (read-only)
FTP_NON_PROXY_HOSTS: ftp.nonProxyHosts=null (read-only)
GOPHER_PROXY_SET: gopherProxySet=null (read-only)
HTTP_NON_PROXY_HOSTS: http.nonProxyHosts=null (read-only)
MRJ_VERSION: mrj.version=null (read-only)
SOCKS_NON_PROXY_HOSTS: socksNonProxyHosts=null (read-only)
GNU_CLASSPATH_HOME: gnu.classpath.home=null (read-only)
GNU_CLASSPATH_HOME_URL: gnu.classpath.home.url=null (read-only)
GNU_CLASSPATH_VERSION: gnu.classpath.version=null (read-only)
GNU_CLASSPATH_VM_SHORTNAME: gnu.classpath.vm.shortname=null (read-only)
GNU_CPU_ENDIAN: gnu.cpu.endian=null (read-only)
GNU_GCJ_PRECOMPILED_DB_PATH: gnu.gcj.precompiled.db.path=null (read-only)
GNU_GCJ_PROGNAME: gnu.gcj.progname=null (read-only)
GNU_GCJ_RUNTIME_ENDORSED_DIRS: gnu.gcj.runtime.endorsed.dirs=null (read-only)
GNU_GCJ_USER_REALNAME: gnu.gcj.user.realname=null (read-only)
GNU_JAVA_UTIL_ZONEINFO_DIR: gnu.java.util.zoneinfo.dir=null (read-only)
HTTP_AGENT: http.agent=null (read-only)
JAVA_FULLVERSION: java.fullversion=J2RE 1.5.0 IBM J9 2.3 AIX ppc-32 j9vmap3223ifx-20090225 (JIT enabled)
J9VM - 20090224_30451_bHdSMr
JIT  - 20081112_1511ifx1_r8
GC   - 200811_07 (read-only)
USER_REGION: user.region=null (read-only)
PROGRAM_NAME: program.name=null (read-only)
GROOVY_HOME: groovy.home=null (read-only)
GROOVY_STARTER_CONF: groovy.starter.conf=null (read-only)
JAVA_AWT_HEADLESS: java.awt.headless=false
SUN_AWT_DISABLE_MIXING: sun.awt.disableMixing=null
SUN_AWT_NOERASEBACKGROUND: sun.awt.noerasebackground=null
SUN_AWT_XEMBEDSERVER: sun.awt.xembedserver=null
OS_FAMILY: os.family=unknown (derived)
JAVA_VM_SERVER: java.vm.server=false (derived)


### UNKNOWN
FILE_ENCODING_PKG: file.encoding.pkg=null (read-only)
JAVA_ENDORSED_DIRS: java.endorsed.dirs=null (read-only)
JAVA_VENDOR_URL_BUG: java.vendor.url.bug=null (read-only)
SUN_CPU_ENDIAN: sun.cpu.endian=null (read-only)
SUN_CPU_ISALIST: sun.cpu.isalist=null (read-only)
SUN_JAVA_LAUNCHER: sun.java.launcher=null (read-only)
SUN_MANAGEMENT_COMPILER: sun.management.compiler=null (read-only)
SUN_OS_PATCH_LEVEL: sun.os.patch.level=null (read-only)
SUN_DESKTOP: sun.desktop=null (read-only)
USER_ZONEINFO_DIR: user.zoneinfo.dir=null (read-only)
AWT_NATIVE_DOUBLE_BUFFERING: awt.nativeDoubleBuffering=null (read-only)
AWT_TOOLKIT: awt.toolkit=null (read-only)
FTP_NON_PROXY_HOSTS: ftp.nonProxyHosts=null (read-only)
GOPHER_PROXY_SET: gopherProxySet=null (read-only)
HTTP_NON_PROXY_HOSTS: http.nonProxyHosts=null (read-only)
MRJ_VERSION: mrj.version=null (read-only)
SOCKS_NON_PROXY_HOSTS: socksNonProxyHosts=null (read-only)
GNU_CLASSPATH_HOME: gnu.classpath.home=null (read-only)
GNU_CLASSPATH_HOME_URL: gnu.classpath.home.url=null (read-only)
GNU_CLASSPATH_VERSION: gnu.classpath.version=null (read-only)
GNU_CLASSPATH_VM_SHORTNAME: gnu.classpath.vm.shortname=null (read-only)
GNU_CPU_ENDIAN: gnu.cpu.endian=null (read-only)
GNU_GCJ_PRECOMPILED_DB_PATH: gnu.gcj.precompiled.db.path=null (read-only)
GNU_GCJ_PROGNAME: gnu.gcj.progname=null (read-only)
GNU_GCJ_RUNTIME_ENDORSED_DIRS: gnu.gcj.runtime.endorsed.dirs=null (read-only)
GNU_GCJ_USER_REALNAME: gnu.gcj.user.realname=null (read-only)
GNU_JAVA_UTIL_ZONEINFO_DIR: gnu.java.util.zoneinfo.dir=null (read-only)
HTTP_AGENT: http.agent=null (read-only)
USER_REGION: user.region=null (read-only)
PROGRAM_NAME: program.name=null (read-only)
GROOVY_HOME: groovy.home=null (read-only)
GROOVY_STARTER_CONF: groovy.starter.conf=null (read-only)
JAVA_AWT_HEADLESS: java.awt.headless=false
SUN_AWT_DISABLE_MIXING: sun.awt.disableMixing=null
SUN_AWT_NOERASEBACKGROUND: sun.awt.noerasebackground=null
SUN_AWT_XEMBEDSERVER: sun.awt.xembedserver=null
OS_FAMILY: os.family=unknown (derived)
JAVA_VM_SERVER: java.vm.server=false (derived)


### MISSING
com.ibm.cpu.endian=big
com.ibm.oti.configuration=scar
com.ibm.oti.jcl.build=20081111_1646
com.ibm.oti.vm.bootstrap.library.path=/prj/was/java/jre/bin
com.ibm.oti.vm.library.version=23
com.ibm.util.extralibs.properties=
com.ibm.vm.bitmode=32
ibm.signalhandling.rs=false
ibm.signalhandling.sigchain=true
ibm.signalhandling.sigint=true
ibm.system.encoding=ISO8859-1
invokedviajava=
java.assistive=ON
java.awt.fonts=
java.jcl.version=20090506
java.util.prefs.PreferencesFactory=java.util.prefs.FileSystemPreferencesFactory
jxe.current.romimage.version=9
jxe.lowest.romimage.version=9
sun.java2d.fontpath=


### PLEASE POST FULL OUTPUT AT http://j.mp/props0 or http://j.mp/props1
    /**
     * AIX only: known values: big
     */
    COM_IBM_CPU_ENDIAN("com.ibm.cpu.endian"),
    /**
     * AIX only: known values: scar
     */
    COM_IBM_OTI_CONFIGURATION("com.ibm.oti.configuration"),
    /**
     * AIX only: known values: 20081111_1646
     */
    COM_IBM_OTI_JCL_BUILD("com.ibm.oti.jcl.build"),
    /**
     * AIX only: known values: /prj/was/java/jre/bin
     */
    COM_IBM_OTI_VM_BOOTSTRAP_LIBRARY_PATH("com.ibm.oti.vm.bootstrap.library.path"),
    /**
     * AIX only: known values: 23
     */
    COM_IBM_OTI_VM_LIBRARY_VERSION("com.ibm.oti.vm.library.version"),
    /**
     * AIX only: known values: 
     */
    COM_IBM_UTIL_EXTRALIBS_PROPERTIES("com.ibm.util.extralibs.properties"),
    /**
     * AIX only: known values: 32
     */
    COM_IBM_VM_BITMODE("com.ibm.vm.bitmode"),
    /**
     * AIX only: known values: false
     */
    IBM_SIGNALHANDLING_RS("ibm.signalhandling.rs"),
    /**
     * AIX only: known values: true
     */
    IBM_SIGNALHANDLING_SIGCHAIN("ibm.signalhandling.sigchain"),
    /**
     * AIX only: known values: true
     */
    IBM_SIGNALHANDLING_SIGINT("ibm.signalhandling.sigint"),
    /**
     * AIX only: known values: ISO8859-1
     */
    IBM_SYSTEM_ENCODING("ibm.system.encoding"),
    /**
     * AIX only: known values: 
     */
    INVOKEDVIAJAVA("invokedviajava"),
    /**
     * AIX only: known values: ON
     */
    JAVA_ASSISTIVE("java.assistive"),
    /**
     * AIX only: known values: 
     */
    JAVA_AWT_FONTS("java.awt.fonts"),
    /**
     * AIX only: known values: 20090506
     */
    JAVA_JCL_VERSION("java.jcl.version"),
    /**
     * AIX only: known values: java.util.prefs.FileSystemPreferencesFactory
     */
    JAVA_UTIL_PREFS__PREFERENCES_FACTORY("java.util.prefs.PreferencesFactory"),
    /**
     * AIX only: known values: 9
     */
    JXE_CURRENT_ROMIMAGE_VERSION("jxe.current.romimage.version"),
    /**
     * AIX only: known values: 9
     */
    JXE_LOWEST_ROMIMAGE_VERSION("jxe.lowest.romimage.version"),
    /**
     * AIX only: known values: 
     */
    SUN_JAVA2D_FONTPATH("sun.java2d.fontpath"),

这篇关于众包公共Java系统属性和已知值的完整列表的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！

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