Util

java.lang.Object
- org.robolectric.util.Util

```
public class Util
extends Object
```
Generic collection of utility methods.

Constructor Summary

Constructors
Constructor Description

Util()

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static void`	`copy(InputStream in, OutputStream out)`
`static File`	`file(File f, String... pathParts)`
`static File`	`file(String... pathParts)`
`static int`	`getJavaVersion()`	Returns the Java version as an int value.
`static List<Integer>`	`intArrayToList(int[] ints)`
`static int`	`parseInt(String valueFor)`
`static Path`	`pathFrom(URL localArtifactUrl)`
`static byte[]`	`readBytes(InputStream is)`	This method consumes an input stream and returns its content, and closes it.
`static <T> T[]`	`reverse(T[] array)`
`static <T extends Throwable> RuntimeException`	`sneakyThrow(Throwable t)`	Re-throw `t` (even if it's a checked exception) without requiring a `throws` declaration.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail
- Util
```
public Util()
```

Method Detail

getJavaVersion
```
public static int getJavaVersion()
```
Returns the Java version as an int value.

Returns:

the Java version as an int value (8, 9, etc.)

copy

public static void copy(InputStream in,
                        OutputStream out)
                 throws IOException

Throws:: IOException

readBytes
```
public static byte[] readBytes(InputStream is)
                        throws IOException
```
This method consumes an input stream and returns its content, and closes it.

Parameters:

is - The input stream to read from.

Returns:

The bytes read from the stream.

Throws:

IOException - Error reading from stream.

reverse

public static <T> T[] reverse(T[] array)

file

public static File file(String... pathParts)

file

public static File file(File f,
                        String... pathParts)

pathFrom

public static Path pathFrom(URL localArtifactUrl)

intArrayToList

public static List<Integer> intArrayToList(int[] ints)

parseInt

public static int parseInt(String valueFor)

sneakyThrow
```
public static <T extends Throwable> RuntimeException sneakyThrow(Throwable t)
                                                          throws T extends Throwable
```
Re-throw t (even if it's a checked exception) without requiring a throws declaration.
This function declares a return type of RuntimeException but will never actually return a value. This allows you to use it with a throw statement to convince the compiler that the current branch will not complete.
```
 throw Util.sneakyThrow(new IOException());
 
```
Adapted from https://www.mail-archive.com/javaposse@googlegroups.com/msg05984.html
Throws:

T extends Throwable