```
public final class Env
extends Object
```
Utility that detects various properties specific to the current runtime environment, such as JVM bitness and OS type.

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static boolean`	`isLinuxOs()`
`static boolean`	`isMacOs()`
`static boolean`	`isTestEnv()`
`static boolean`	`isWindowsOs()`
`static int`	`osPageSize()`	Return the size in bytes of a OS memory page.
`static void`	`setTestEnv(boolean testEnv)`

osPageSize
```
public static int osPageSize()
```
Return the size in bytes of a OS memory page. This value will always be a power of two.

public static void setTestEnv(boolean testEnv)

Class Env