[Android Apps and Games] texneus:
OK, after doing some more digging I've found a java app called Java System Properties Displayer on softpedia. Unfortunately I cannot post links, seems XDA thinks I'm posting spam??? So you'll need to google for it...sorry.

Here is what it says for default properties:

file.encoding = ISO646-US
file.encoding.pkg = sun.io
file.separator = /
java.awt.graphicsenv = sun.awt.X11GraphicsEnvironment
java.awt.printerjob = sun.print.PSPrinterJob
java.class.path = system-property.jar
java.class.version = 50.0
java.endorsed.dirs = /usr/jdk/instances/jdk1.6.0/jre/lib/endorsed
java.ext.dirs = /usr/jdk/instances/jdk1.6.0/jre/lib/ext:/usr/jdk/packages/lib/ext
java.home = /usr/jdk/instances/jdk1.6.0/jre
java.io.tmpdir = /var/tmp/
java.library.path = /usr/jdk/instances/jdk1.6.0/jre/lib/i386/server:/usr/jdk/instances/jdk1.6.0/jre/lib/i386:/usr/jdk/instances/jdk1.6.0/jre/../lib/i386:/usr/jdk/packages/lib/i386:/lib:/usr/lib
java.runtime.name = Java(TM) SE Runtime Environment
java.runtime.version = 1.6.0_26-b03
java.specification.name = Java Platform API Specification
java.specification.vendor = Sun Microsystems Inc.
java.specification.version = 1.6
java.vendor = Sun Microsystems Inc.
java.vendor.url = httx://java.sun.com/
java.vendor.url.bug = httx://java.sun.com/cgi-bin/bugreport.cgi
java.version = 1.6.0_26
java.vm.info = mixed mode
java.vm.name = Java HotSpot(TM) Server VM
java.vm.specification.name = Java Virtual Machine Specification
java.vm.specification.vendor = Sun Microsystems Inc.
java.vm.specification.version = 1.0
java.vm.vendor = Sun Microsystems Inc.
java.vm.version = 20.1-b02
line.separator = \n
os.arch = x86
os.name = SunOS
os.version = 5.11
path.separator = :
sun.arch.data.model = 32
sun.boot.class.path = /usr/jdk/instances/jdk1.6.0/jre/lib/resources.jar:/usr/jdk/instances/jdk1.6.0/jre/lib/rt.jar:/usr/jdk/instances/jdk1.6.0/jre/lib/sunrsasign.jar:/usr/jdk/instances/jdk1.6.0/jre/lib/jsse.jar:/usr/jdk/instances/jdk1.6.0/jre/lib/jce.jar:/usr/jdk/instances/jdk1.6.0/jre/lib/charsets.jar:/usr/jdk/instances/jdk1.6.0/jre/lib/modules/jdk.boot.jar:/usr/jdk/instances/jdk1.6.0/jre/classes
sun.boot.library.path = /usr/jdk/instances/jdk1.6.0/jre/lib/i386
sun.cpu.endian = little
sun.cpu.isalist =
sun.io.unicode.encoding = UnicodeBig
sun.java.command = system-property.jar
sun.java.launcher = SUN_STANDARD
sun.jnu.encoding = ISO646-US
sun.management.compiler = HotSpot Tiered Compilers
sun.os.patch.level = unknown
user.dir = /Zaphod/SageTV
user.home = /root
user.language = en
user.name = root
user.timezone =

...and with the -Dfile.encoding="UTF-8" switch...

file.encoding = UTF-8
file.encoding.pkg = sun.io
file.separator = /
java.awt.graphicsenv = sun.awt.X11GraphicsEnvironment
java.awt.printerjob = sun.print.PSPrinterJob
java.class.path = system-property.jar
java.class.version = 50.0
java.endorsed.dirs = /usr/jdk/instances/jdk1.6.0/jre/lib/endorsed
java.ext.dirs = /usr/jdk/instances/jdk1.6.0/jre/lib/ext:/usr/jdk/packages/lib/ext
java.home = /usr/jdk/instances/jdk1.6.0/jre
java.io.tmpdir = /var/tmp/
java.library.path = /usr/jdk/instances/jdk1.6.0/jre/lib/i386/server:/usr/jdk/instances/jdk1.6.0/jre/lib/i386:/usr/jdk/instances/jdk1.6.0/jre/../lib/i386:/usr/jdk/packages/lib/i386:/lib:/usr/lib
java.runtime.name = Java(TM) SE Runtime Environment
java.runtime.version = 1.6.0_26-b03
java.specification.name = Java Platform API Specification
java.specification.vendor = Sun Microsystems Inc.
java.specification.version = 1.6
java.vendor = Sun Microsystems Inc.
java.vendor.url = httx://java.sun.com/
java.vendor.url.bug = httx://java.sun.com/cgi-bin/bugreport.cgi
java.version = 1.6.0_26
java.vm.info = mixed mode
java.vm.name = Java HotSpot(TM) Server VM
java.vm.specification.name = Java Virtual Machine Specification
java.vm.specification.vendor = Sun Microsystems Inc.
java.vm.specification.version = 1.0
java.vm.vendor = Sun Microsystems Inc.
java.vm.version = 20.1-b02
line.separator = \n
os.arch = x86
os.name = SunOS
os.version = 5.11
path.separator = :
sun.arch.data.model = 32
sun.boot.class.path = /usr/jdk/instances/jdk1.6.0/jre/lib/resources.jar:/usr/jdk/instances/jdk1.6.0/jre/lib/rt.jar:/usr/jdk/instances/jdk1.6.0/jre/lib/sunrsasign.jar:/usr/jdk/instances/jdk1.6.0/jre/lib/jsse.jar:/usr/jdk/instances/jdk1.6.0/jre/lib/jce.jar:/usr/jdk/instances/jdk1.6.0/jre/lib/charsets.jar:/usr/jdk/instances/jdk1.6.0/jre/lib/modules/jdk.boot.jar:/usr/jdk/instances/jdk1.6.0/jre/classes
sun.boot.library.path = /usr/jdk/instances/jdk1.6.0/jre/lib/i386
sun.cpu.endian = little
sun.cpu.isalist =
sun.io.unicode.encoding = UnicodeBig
sun.java.command = system-property.jar
sun.java.launcher = SUN_STANDARD
sun.jnu.encoding = ISO646-US
sun.management.compiler = HotSpot Tiered Compilers
sun.os.patch.level = unknown
user.dir = /Zaphod/SageTV
user.home = /root
user.language = en
user.name = root
user.timezone =