/* * Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved. * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms. * * * * * * * * * * * * * * * * * * * * */ package java.lang; /** * Thrown to indicate that an assertion has failed. * *

The seven one-argument public constructors provided by this * class ensure that the assertion error returned by the invocation: *

 *     new AssertionError(expression)
 * 
* has as its detail message the string conversion of * expression (as defined in section 15.18.1.1 of * The Java™ Language Specification), * regardless of the type of expression. * * @since 1.4 */ public class AssertionError extends Error { private static final long serialVersionUID = -5013299493970297370L; /** * Constructs an AssertionError with no detail message. */ public AssertionError() { } /** * This internal constructor does no processing on its string argument, * even if it is a null reference. The public constructors will * never call this constructor with a null argument. */ private AssertionError(String detailMessage) { super(detailMessage); } /** * Constructs an AssertionError with its detail message derived * from the specified object, which is converted to a string as * defined in section 15.18.1.1 of * The Java™ Language Specification. *

* If the specified object is an instance of {@code Throwable}, it * becomes the cause of the newly constructed assertion error. * * @param detailMessage value to be used in constructing detail message * @see Throwable#getCause() */ public AssertionError(Object detailMessage) { this("" + detailMessage); if (detailMessage instanceof Throwable) initCause((Throwable) detailMessage); } /** * Constructs an AssertionError with its detail message derived * from the specified boolean, which is converted to * a string as defined in section 15.18.1.1 of * The Java™ Language Specification. * * @param detailMessage value to be used in constructing detail message */ public AssertionError(boolean detailMessage) { this("" + detailMessage); } /** * Constructs an AssertionError with its detail message derived * from the specified char, which is converted to a * string as defined in section 15.18.1.1 of * The Java™ Language Specification. * * @param detailMessage value to be used in constructing detail message */ public AssertionError(char detailMessage) { this("" + detailMessage); } /** * Constructs an AssertionError with its detail message derived * from the specified int, which is converted to a * string as defined in section 15.18.1.1 of * The Java™ Language Specification. * * @param detailMessage value to be used in constructing detail message */ public AssertionError(int detailMessage) { this("" + detailMessage); } /** * Constructs an AssertionError with its detail message derived * from the specified long, which is converted to a * string as defined in section 15.18.1.1 of * The Java™ Language Specification. * * @param detailMessage value to be used in constructing detail message */ public AssertionError(long detailMessage) { this("" + detailMessage); } /** * Constructs an AssertionError with its detail message derived * from the specified float, which is converted to a * string as defined in section 15.18.1.1 of * The Java™ Language Specification. * * @param detailMessage value to be used in constructing detail message */ public AssertionError(float detailMessage) { this("" + detailMessage); } /** * Constructs an AssertionError with its detail message derived * from the specified double, which is converted to a * string as defined in section 15.18.1.1 of * The Java™ Language Specification. * * @param detailMessage value to be used in constructing detail message */ public AssertionError(double detailMessage) { this("" + detailMessage); } /** * Constructs a new {@code AssertionError} with the specified * detail message and cause. * *

Note that the detail message associated with * {@code cause} is not automatically incorporated in * this error's detail message. * * @param message the detail message, may be {@code null} * @param cause the cause, may be {@code null} * * @since 1.7 */ public AssertionError(String message, Throwable cause) { super(message, cause); } }