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## org.apache.catalina.startup
Class ClassLoaderFactory

    java.lang.Object
      org.apache.catalina.startup.ClassLoaderFactory

    public final class ClassLoaderFactory

extends Object

Utility class for building class loaders for Catalina. The factory method requires the following parameters in order to build a new class loader (with suitable defaults in all cases):

- A set of directories containing unpacked classes (and resources) that should be included in the class loader's repositories.
- A set of directories containing classes and resources in JAR files. Each readable JAR file discovered in these directories will be added to the class loader's repositories.
- `ClassLoader` instance that should become the parent of the new class loader.

Version:
  $Id: ClassLoaderFactory.java 1076059 2011-03-01 23:59:36Z kkolinko $
Author:
  Craig R. McClanahan

Nested Class Summary
`static class` | `ClassLoaderFactory.Repository`
`static class` | `ClassLoaderFactory.RepositoryType`

Constructor Summary
`ClassLoaderFactory()`

Method Summary
`static ClassLoader` | `createClassLoader(File[] unpacked, File[] packed, ClassLoader parent)` Create and return a new class loader, based on the configuration defaults and the specified directory paths:
`static ClassLoader` | `createClassLoader(List<ClassLoaderFactory.Repository> repositories, ClassLoader parent)` Create and return a new class loader, based on the configuration defaults and the specified directory paths:

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

Constructor Detail

### ClassLoaderFactory

    public ClassLoaderFactory()

Method Detail

### createClassLoader

    public static ClassLoader createClassLoader(File[] unpacked,
                                                File[] packed,
                                                ClassLoader parent)
                                         throws Exception

  Create and return a new class loader, based on the configuration defaults and the specified directory paths:

  Parameters:
    `unpacked` - Array of pathnames to unpacked directories that should be added to the repositories of the class loader, or `null` for no unpacked directories to be considered
    `packed` - Array of pathnames to directories containing JAR files that should be added to the repositories of the class loader, or `null` for no directories of JAR files to be considered
    `parent` - Parent class loader for the new class loader, or `null` for the system class loader.
  Throws:
    `Exception` - if an error occurs constructing the class loader

### createClassLoader

    public static ClassLoader createClassLoader(List<ClassLoaderFactory.Repository> repositories,
                                                ClassLoader parent)
                                         throws Exception

  Create and return a new class loader, based on the configuration defaults and the specified directory paths:

  Parameters:
    `repositories` - List of class directories, jar files, jar directories or URLS that should be added to the repositories of the class loader.
    `parent` - Parent class loader for the new class loader, or `null` for the system class loader.
  Throws:
    `Exception` - if an error occurs constructing the class loader

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