WindowsLookAndFeel on Linux : BIG and complete PROBLEM

Question

Hello,
I have implemented a GUI application with the windows look and feel. I work under Linux with the jdk 1.3 and eclipse.
To run my application with the windows lf, I add the following lines in my code :
System.setProperty("os.name","Not Windows");
try {
     UIManager.setLookAndFeel(new WindowsLookAndFeel());
} catch (Exception e) {
          e.printStackTrace();
          SwingUtilities.updateComponentTreeUI(getRootPane());
In Eclipse, it works well, but an execution from the line command in a Xterm generate the following exception :
java.lang.NumberFormatException: multiple points
     at java.lang.FloatingDecimal.readJavaFormatString(FloatingDecimal.java:1073)
     at java.lang.Float.valueOf(Float.java:186)
     at com.sun.java.swing.plaf.windows.WindowsLookAndFeel.initialize(WindowsLookAndFeel.java:108)
It seems that the problem is caused by the following line :
System.getProperty("os.name","Not Window");
the system property os.name is parsed as a float.
what can I do to run my application with the windows lf and under linux ?
any help will be helpful
Regards,
Anne

Answer 1

In Eclipse, it works well, but an execution from the
line command in a Xterm generate the following
exception :
java.lang.NumberFormatException: multiple points
at
java.lang.FloatingDecimal.readJavaFormatString(Floatin
Decimal.java:1073)
     at java.lang.Float.valueOf(Float.java:186)
at
com.sun.java.swing.plaf.windows.WindowsLookAndFeel.ini
ialize(WindowsLookAndFeel.java:108)Make sure that Eclipse is using the JDK matching the JRE you use to run the program (Windows/Preferences/Java/installed JREs or somesuch)
It seems that the problem is caused by the following
line :
System.getProperty("os.name","Not Window");
the system property os.name is parsed as a float.Using an official System property is shooting yourself in the foot. You can't tell what else on in the Java runtime has a depency on it. You can set your own property
for this (System.setProperty("MyFalseOpsSys","Not Windows")). I wonder what use you have for it since you force the Windows L&F anyway?
>
what can I do to run my application with the windows
lf and under linux ?
any help will be helpful Maybe find a JRE which supports it natively. Or, if you are very lucky, extract the relevant classes and resources from the JAR of a Windows JRE (in Sun's rt.jar, com/sun/java/swing/plaf/windows/) and put them into some independent JAR you add to your Linux classpath. For better luck, use the very same version for both JRE. Pray that there are no native methods involved.