```
public class JarHelper
extends Object
```
Provides utility services for jarring and unjarring files and directories. Note that a given instance of JarHelper is not threadsafe with respect to multiple jar operations.

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`jarDir(File dirOrFile2Jar, File destJar)`	Jars a given directory or single file into a JarOutputStream.
`static void`	`main(String[] args)`
`void`	`setVerbose(boolean b)`
`void`	`unjar(InputStream in, File destDir)`	Given an InputStream on a jar file, unjars the contents into the given directory.
`void`	`unjarDir(File jarFile, File destDir)`	Unjars a given jar file into a given directory.

public void jarDir(File dirOrFile2Jar,
                   File destJar)
            throws IOException

Jars a given directory or single file into a JarOutputStream.

public void unjarDir(File jarFile,
                     File destDir)
              throws IOException

Unjars a given jar file into a given directory.

public void unjar(InputStream in,
                  File destDir)
           throws IOException

Given an InputStream on a jar file, unjars the contents into the given directory.

public static void main(String[] args)
                 throws IOException

Class JarHelper