Logo Questions Linux Laravel Mysql Ubuntu Git Menu
HTML CSS JAVASCRIPT SQL PYTHON PHP BOOTSTRAP JAVA JQUERY R React Kotlin
 

On Windows 7, how does Java JVM set "user.home" System property?

Tags:

java

jvm

windows-7

I am using JRE 1.7 and I discovered the user.home System property is very unusual. How does the JVM set this value?

like image 206
kevinarpe Avatar asked Jun 03 '13 04:06

kevinarpe

People also ask

How do I set Java system properties in Windows?

System properties are set on the Java command line using the -Dpropertyname=value syntax. They can also be added at runtime using System. setProperty(String key, String value) or via the various System. getProperties().

What is JVM system property?

System properties contain information to configure the JVM and its environment. Some system properties are particularly relevant for JVMs in a CICS® environment. Specify JVM system properties in the JVM profile.

How do I see Java properties in Windows?

In Java, you can use System. getProperties() to get all the system properties.

2 Answers

This Java bug explains how: http://bugs.sun.com/view_bug.do?bug_id=4787931

System property user.home is set by:

  1. Read the registry value for key: HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders\Desktop
  2. Take the parent path of this value, but do not resolve environment variables.

Example: %userprofile%\Desktop => %userprofile% (unresolved environment variable)

This issue should be fixed in Java 8.

Related Ref: Java user.home is being set to %userprofile% and not being resolved

like image 170
kevinarpe Avatar answered Sep 27 '22 21:09

kevinarpe

In windows it gets it like stated in the accepted answer, and is dependent of the Desktop folder location.

There is workaround if you want to change your default Desktop folder location, and still want to have user.home in the same folder:

add this into the environment variables:
_JAVA_OPTIONS:-Duser.home=%HOMEDRIVE%%HOMEPATH%

or in command line:
set _JAVA_OPTIONS=-Duser.home=%HOMEDRIVE%%HOMEPATH%

I saw the solution in the comments of this page: http://www.timehat.com/javas-user-home-is-wrong-on-windows/

like image 36
Luka Bradeško Avatar answered Sep 27 '22 20:09

Luka Bradeško
Sign in to Comment

Related questions

Get result from an activity after finish(); in an Android unit test
How would I print all values in a TreeMap?
Java getClass().getResource("file") leads to NullPointerException
Why does JTable always trigger ListSelectionListener twice?
Set time and speed complexity
How can I set VM options in a Java Netbeans Platform Modular Project?
How can I look at the current environmental variables that eclipse IDE is using?
How do I reimplement valueof on enumeration
Are programs written in Java for Android slower than equivalent written in C embedded into Objective-C for iOS?
BeanUtils.copyProperties convert Integer null to 0
HttpResponse using android issue: execute always causes exception?
Applying different Jackson filter for different Jersey REST service calls
Strange finally behaviour? [duplicate]
How to convert String of datetime to date using GWT?
String-Date conversion with nanoseconds
Creating a TreeSet with a non-Comparable class: why a run-time exception, rather than compile-time error?
Making a generic comparator class [closed]
Maven, package does not exist
Hibernate: how to get a list of all the objects currently in the session
How do I test the JavaMailSender of Spring

Donate For Us

If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!