IllegalAccessException (Java SE 25 & JDK 25)
Description: declaration: module: java.base, package: java.lang, class: IllegalAccessException
Keywords: java.lang.IllegalAccessException class

# Class IllegalAccessException

java.lang.Object
java.lang.Throwable
java.lang.Exception
java.lang.ReflectiveOperationException
java.lang.IllegalAccessException

All Implemented Interfaces:
  `Serializable`

public class IllegalAccessException extends ReflectiveOperationException
An IllegalAccessException is thrown when an application tries to reflectively create an instance (other than an array), set or get a field, or invoke a method, but the currently executing method does not have access to the definition of the specified class, field, method or constructor.

Since:
  1.0
See Also:
  - `Class.newInstance()`
  - `Field.set(Object, Object)`
  - `Field.setBoolean(Object, boolean)`
  - `Field.setByte(Object, byte)`
  - `Field.setShort(Object, short)`
  - `Field.setChar(Object, char)`
  - `Field.setInt(Object, int)`
  - `Field.setLong(Object, long)`
  - `Field.setFloat(Object, float)`
  - `Field.setDouble(Object, double)`
  - `Field.get(Object)`
  - `Field.getBoolean(Object)`
  - `Field.getByte(Object)`
  - `Field.getShort(Object)`
  - `Field.getChar(Object)`
  - `Field.getInt(Object)`
  - `Field.getLong(Object)`
  - `Field.getFloat(Object)`
  - `Field.getDouble(Object)`
  - `Method.invoke(Object, Object[])`
  - `Constructor.newInstance(Object[])`
  - Serialized Form

- ## Constructor Summary

  Constructors
  Constructor
  Description
  `IllegalAccessException()`
  Constructs an `IllegalAccessException` without a detail message.
  `IllegalAccessException(String s)`
  Constructs an `IllegalAccessException` with a detail message.

- ## Method Summary

  ### Methods declared in class Throwable

  `addSuppressed, fillInStackTrace, getCause, getLocalizedMessage, getMessage, getStackTrace, getSuppressed, initCause, printStackTrace, printStackTrace, printStackTrace, setStackTrace, toString`

  ### Methods declared in class Object

  `clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

- ## Constructor Details

  - ### IllegalAccessException

    public IllegalAccessException()
    Constructs an `IllegalAccessException` without a detail message.

  - ### IllegalAccessException

    public IllegalAccessException(String s)
    Constructs an `IllegalAccessException` with a detail message.
    Parameters:
      `s` - the detail message.