Java Test For Operating Systems

TestOs.java

import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStreamReader;

public class TestOs {

    private static boolean isWindows = false;
    private static boolean isLinux = false;
    private static boolean isHpUnix = false;
    private static boolean isPiUnix = false;
    private static boolean isSolaris = false;
    private static boolean isSunOS = false;
    private static boolean archDataModel32 = false;
    private static boolean archDataModel64 = false;

    static {
        final String os = System.getProperty("os.name").toLowerCase();
        if (os.contains("windows")) {
            isWindows = true;
        }
        if (os.contains("linux")) {
            isLinux = true;
        }
        if (os.contains("hp-ux")) {
            isHpUnix = true;
        }
        if (os.contains("hpux")) {
            isHpUnix = true;
        }
        if (os.contains("solaris")) {
            isSolaris = true;
        }
        if (os.contains("sunos")) {
            isSunOS = true;
        }
        if (System.getProperty("sun.arch.data.model").equals("32")) {
            archDataModel32 = true;
        }
        if (System.getProperty("sun.arch.data.model").equals("64")) {
            archDataModel64 = true;
        }
        if (isLinux) {
            final File file = new File("/etc", "os-release");
            try {
                BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(file)));
                String string;
                while ((string = br.readLine()) != null) {
                    if (string.toLowerCase().contains("raspbian")) {
                        if (string.toLowerCase().contains("name")) {
                            isPiUnix = true;
                            break;
                        }
                    }
                }
            } catch (final IOException e) {
            }
        }
    }

    public static void main(String[] args) {
        System.out.println(isPiUnix);
    }
}