com.pamirs.pradar.Constants Maven / Gradle / Ivy
package com.pamirs.pradar;
import java.lang.reflect.Field;
final class Constants {
private Constants() {
}
public static final boolean JRE_IS_64BIT;
public static final String JAVA_VERSION = System.getProperty("java.version");
public static final String JAVA_VENDOR = System.getProperty("java.vendor");
public static final String JVM_VENDOR = System.getProperty("java.vm.vendor");
public static final String JVM_VERSION = System.getProperty("java.vm.version");
public static final String JVM_NAME = System.getProperty("java.vm.name");
public static final String OS_ARCH = System.getProperty("os.arch");
public static final String OS_VERSION = System.getProperty("os.version");
static {
final String OS_ARCH = System.getProperty("os.arch");
boolean is64Bit = false;
try {
final Class unsafeClass = Class.forName("sun.misc.Unsafe");
final Field unsafeField = unsafeClass.getDeclaredField("theUnsafe");
unsafeField.setAccessible(true);
final Object unsafe = unsafeField.get(null);
final int addressSize = ((Number) unsafeClass.getMethod("addressSize").invoke(unsafe)).intValue();
is64Bit = addressSize >= 8;
} catch (Throwable e) {
final String x = System.getProperty("sun.arch.data.model");
if (x != null) {
is64Bit = x.indexOf("64") != -1;
} else {
if (OS_ARCH != null && OS_ARCH.indexOf("64") != -1) {
is64Bit = true;
} else {
is64Bit = false;
}
}
}
JRE_IS_64BIT = is64Bit;
}
}