java.version                                    Java Runtime Environment version
java.vendor                                     Java Runtime Environment vendor
java.vendor.url                               Java vendor URL
java.home                                        Java installation directory
java.vm.specification.version      Java Virtual Machine specification version
java.vm.specification.vendor       Java Virtual Machine specification vendor
java.vm.specification.name          Java Virtual Machine specification name
java.vm.version                              Java Virtual Machine implementation version
java.vm.vendor                               Java Virtual Machine implementation vendor
java.vm.name                                   Java Virtual Machine implementation name
java.specification.version              Java Runtime Environment specification version
java.specification.vendor               Java Runtime Environment specification vendor
java.specification.name                  Java Runtime Environment specification name
java.class.version                            Java class format version number
java.class.path                                 Java class path
java.library.path                               List of paths to search when loading libraries
java.io.tmpdir                                    Default temp file path
java.compiler                                    Name of JIT compiler to use
java.ext.dirs                                      Path of extension directory or directories
os.name                                             Operating system name
os.arch                                              Operating system architecture
os.version                                        Operating system version
file.separator                                    File separator ("/" on UNIX)
path.separator                                  Path separator (":" on UNIX)
line.separator                                    Line separator ("\n" on UNIX)
user.name                                          User's account name
user.home                                          User's home directory
user.dir                                               User's current working directory