How to get the BIOS vendor under Linux,MacOSX and Microsoft Windows by Java

BiosUtil.java

import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.nio.charset.StandardCharsets;
import java.nio.file.FileSystems;
import java.nio.file.Files;
import java.util.Collection;
import java.util.Objects;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import java.util.stream.Collectors;

import org.apache.commons.io.IOUtils;
import org.apache.commons.lang3.ObjectUtils;
import org.apache.commons.lang3.StringUtils;

import com.sun.jna.platform.win32.Ole32;
import com.sun.jna.platform.win32.COM.WbemcliUtil.WmiQuery;
import com.sun.jna.platform.win32.COM.WbemcliUtil.WmiResult;

public class BiosUtil {

	public static void main(final String[] args) throws IOException {
		//
		System.out.println(getVendor());
		//
	}

	private static enum BiosProperty {
		Manufacturer
	}

	private static String getVendor() throws IOException {
		//
		final String name = getName(getClass(FileSystems.getDefault()));
		//
		if (Objects.equals(name, "sun.nio.fs.LinuxFileSystem")) {
			//
			final File file = new File("/sys/devices/virtual/dmi/id/bios_vendor");
			//
			if (!file.exists() || !file.isFile() || !file.canRead()) {
				//
				return null;
				//
			} // if
				//
			return StringUtils.trim(Files.readAllLines(file.toPath()).stream().collect(Collectors.joining()));
			//
		} else if (Objects.equals(name, "sun.nio.fs.WindowsFileSystem")) {
			//
			final Ole32 ole32 = Ole32.INSTANCE;
			//
			if (ole32 != null) {
				//
				ole32.CoInitializeEx(null, Ole32.COINIT_APARTMENTTHREADED);
				//
			} // if
				//
			String manufacturer = null;
			//
			try {
				//
				final WmiResult<BiosProperty> result = new WmiQuery<>("Win32_ComputerSystem", BiosProperty.class)
						.execute();
				//
				for (int i = 0; result != null && i < result.getResultCount(); i++) {
					//
					if (manufacturer != null) {
						//
						throw new IllegalStateException();
						//
					} // if
						//
					manufacturer = Objects.toString(result.getValue(BiosProperty.Manufacturer, 0));
					//
				} // for
					//
				return manufacturer;
				//
			} finally {
				//
				if (ole32 != null) {
					//
					ole32.CoUninitialize();
					//
				} // if
					//
			} // try
				//
		} else if (Objects.equals(name, "sun.nio.fs.MacOSXFileSystem")) {
			//
			final Process process = new ProcessBuilder("ioreg", "-l", "-p", "IODeviceTree").start();
			//
			String firmwareVendor = null;
			//
			try (final InputStream is = process != null ? process.getInputStream() : null) {
				//
				final Collection<String> lines = IOUtils.readLines(is, StandardCharsets.UTF_8);
				//
				if (lines != null) {
					//
					Pattern pattern = null;
					//
					Matcher matcher = null;
					//
					for (final String line : lines) {
						//
						if (pattern == null) {
							//
							pattern = ObjectUtils.getIfNull(pattern,
									() -> Pattern.compile("^.+\\\"firmware\\-vendor\"\\s+\\=\\s+\\<([0-9a-f]+)\\>$"));
							//
						} // if
							//
						if (line != null && pattern != null && (matcher = pattern.matcher(line)) != null
								&& matcher.matches() && matcher.groupCount() > 0) {
							//
							if (firmwareVendor != null) {
								//
								throw new IllegalStateException();
								//
							} // if
								//
							firmwareVendor = new String(hexToBytes(matcher.group(1)));
							//
						} // if
							//
					} // for
						//
				} // if
					//
				return StringUtils.trim(firmwareVendor);
				//
			} // try
				//
		} // if
			//
		return null;
		//
	}

	private static byte[] hexToBytes(final String hexString) {
		//
		final int len = StringUtils.length(hexString);
		//
		final byte[] data = new byte[len / 2];
		//
		for (int i = 0; i < len; i += 2) {
			//
			data[i / 2] = (byte) ((Character.digit(hexString.charAt(i), 16) << 4)
					+ Character.digit(hexString.charAt(i + 1), 16));
			//
		} // for
			//
		return data;
		//
	}

	private static String getName(final Class<?> instance) {
		return instance != null ? instance.getName() : null;
	}

	private static Class<?> getClass(final Object instance) {
		return instance != null ? instance.getClass() : null;
	}

}

pom.xml

<!--https://mvnrepository.com/artifact/net.java.dev.jna/jna-platform-->
<dependency>
	<groupId>net.java.dev.jna</groupId>
	<artifactId>jna-platform</artifactId>
	<version>5.18.1</version>
</dependency>
<!--https://mvnrepository.com/artifact/org.apache.commons/commons-lang3-->
<dependency>
	<groupId>org.apache.commons</groupId>
	<artifactId>commons-lang3</artifactId>
	<version>3.20.0</version>
</dependency>
<!--https://mvnrepository.com/artifact/commons-io/commons-io-->
<dependency>
	<groupId>commons-io</groupId>
	<artifactId>commons-io</artifactId>
	<version>2.22.0</version>
</dependency>

Operating System	Type	Content
Linux	File	/sys/devices/virtual/dmi/id/bios_vendor
MacOSX	Command	ioreg -l -p IODeviceTree	ioreg(8) osx man page | unix.com
Microsoft Windows	Windows Management Instrumentation	Win32_ComputerSystem	Win32_ComputerSystem class

Output

	Virtual or Physical	Result
Virtual Box	Virtual	innotek GmbH	https://github.com/VirtualBox/virtualbox/blob/main/src/VBox/Devices/PC/DevFwCommon.cpp#L69C1-L69C66
HP HP EliteBook 830 G7 Notebook PC	Physical	HP
Online Java Compiler - Run Java Code in Browser | JDoodle		DigitalOcean