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## Package java.lang.reflect

Provides classes and interfaces for obtaining reflective information about classes and objects.

See:
Description

Interface Summary
InvocationHandler | `InvocationHandler` is the interface implemented by the invocation handler of a proxy instance.
Member | Member is an interface that reflects identifying information about a single member (a field or a method) or a constructor.

Class Summary
AccessibleObject | The AccessibleObject class is the base class for Field, Method and Constructor objects.
Array | The `Array` class provides static methods to dynamically create and access Java arrays.
Constructor | `Constructor` provides information about, and access to, a single constructor for a class.
Field | A `Field` provides information about, and dynamic access to, a single field of a class or an interface.
Method | A `Method` provides information about, and access to, a single method on a class or interface.
Modifier | The Modifier class provides `static` methods and constants to decode class and member access modifiers.
Proxy | `Proxy` provides static methods for creating dynamic proxy classes and instances, and it is also the superclass of all dynamic proxy classes created by those methods.
ReflectPermission | The Permission class for reflective operations.

Exception Summary
InvocationTargetException | InvocationTargetException is a checked exception that wraps an exception thrown by an invoked method or constructor.
UndeclaredThrowableException | Thrown by a method invocation on a proxy instance if its invocation handler's `invoke` method throws a checked exception (a `Throwable` that is not assignable to `RuntimeException` or `Error`) that is not assignable to any of the exception types declared in the `throws` clause of the method that was invoked on the proxy instance and dispatched to the invocation handler.

## Package java.lang.reflect Description

Provides classes and interfaces for obtaining reflective information about classes and objects. Reflection allows programmatic access to information about the fields, methods and constructors of loaded classes, and the use reflected fields, methods, and constructors to operate on their underlying counterparts on objects, within security restrictions.

`AccessibleObject` allows supression of access checks if the necessary `ReflectPermission` is available.

`Arrays` provides static methods to dynamically create and access arrays.

Classes in this package, along with `java.lang.Class` accommodate applications such as debuggers, interpreters, object inspectors, class browsers, and services such as Object Serialization and JavaBeans that need access to either the public members of a target object (based on its runtime class) or the members declared by a given class.

Since:
  JDK1.1

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For further API reference and developer documentation, see Java 2 SDK SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

Copyright 2002 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms.