Getting OS memory size from java

Question

Are there any way to get the size of the total memory on the operating system from java? Using

Runtime.getRuntime().maxMemory()

returns the

Answer 1

com.sun.management.OperatingSystemMXBean bean =
  (com.sun.management.OperatingSystemMXBean)
    java.lang.management.ManagementFactory.getOperatingSystemMXBean();
long max = bean.getTotalPhysicalMemorySize();

returns available RAM size for JVM (limited by 32bit), not the heap size.