[LANG-132] [lang] SystemUtils.IS_OS_*, IS_JAVA_* are always false.

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.0

Environment

Operating System: other
Platform: Other

• Bugzilla Id: 21761
• Assignee: Unassigned
• Reporter: KANEUCHI Tetsuya
• Created: 21/Jul/03 19:29
• Updated: 16/Oct/13 08:55
• Resolved: 16/May/06 12:37

Description

SystemUtils.IS_OS_, IS_JAVA_ always returns false.

This case is on Mac OS X.

---

% java -version
java version "1.4.1_01"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.1_01-39)
Java HotSpot(TM) Client VM (build 1.4.1_01-14, mixed mode)

---

The test code is:
—

import org.apache.commons.lang.*;

public class OSNameTest {

static public void main(String[] arg)

{ System.out.println(System.getProperty("os.name")); System.out.println(SystemUtils.IS_OS_MAC_OSX); System.out.println(SystemUtils.IS_OS_WINDOWS); System.out.println(SystemUtils.IS_JAVA_1_4); }

}

–
The result is:
—
Mac OS X
false
false
false
—

It should be:
–
Mac OS X
true
false
true
–

The cause: IS_JAVA_, IS_OS_ values are based on
JAVA_VERSOIN, OS_NAME, OS_VERSION. But JAVA_VERSION, OS_NAME,
OS_VERSION are initialized after IS_JAVA_, IS_OS_ values.
When IS_OS_* are initialized, OS_NAME == null.

They should be declared considering the initialization order.