Error - JRE Emulation | JRE Emulation
public class

Error

extends Throwable
java.lang.Object
   ↳ java.lang.Throwable
     ↳ java.lang.Error
Known Direct Subclasses
Known Indirect Subclasses

Class Overview

An Error is a subclass of Throwable that indicates serious problems that a reasonable application should not try to catch. Most such errors are abnormal conditions. The ThreadDeath error, though a "normal" condition, is also a subclass of Error because most applications should not try to catch it.

A method is not required to declare in its throws clause any subclasses of Error that might be thrown during the execution of the method but not caught, since these errors are abnormal conditions that should never occur. That is, Error and its subclasses are regarded as unchecked exceptions for the purposes of compile-time checking of exceptions.

See Also

Summary

Public Constructors
Error()
Constructs a new error with null as its detail message.
Error(String message)
Constructs a new error with the specified detail message.
Error(String message, Throwable cause)
Constructs a new error with the specified detail message and cause.
Error(Throwable cause)
Constructs a new error with the specified cause and a detail message of (cause==null ? null : cause.toString()) (which typically contains the class and detail message of cause).
Protected Constructors
Error(String message, Throwable cause, boolean enableSuppression, boolean writableStackTrace)
Constructs a new error with the specified detail message, cause, suppression enabled or disabled, and writable stack trace enabled or disabled.
Inherited Methods
[Expand]
From class java.lang.Throwable
From class java.lang.Object

Public Constructors

public Error ()

Constructs a new error with null as its detail message. The cause is not initialized, and may subsequently be initialized by a call to initCause(Throwable).

public Error (String message)

Constructs a new error with the specified detail message. The cause is not initialized, and may subsequently be initialized by a call to initCause(Throwable).

Parameters
message the detail message. The detail message is saved for later retrieval by the getMessage() method.

public Error (String message, Throwable cause)

Constructs a new error with the specified detail message and cause.

Note that the detail message associated with cause is not automatically incorporated in this error's detail message.

Parameters
message the detail message (which is saved for later retrieval by the getMessage() method).
cause the cause (which is saved for later retrieval by the getCause() method). (A null value is permitted, and indicates that the cause is nonexistent or unknown.)

public Error (Throwable cause)

Constructs a new error with the specified cause and a detail message of (cause==null ? null : cause.toString()) (which typically contains the class and detail message of cause). This constructor is useful for errors that are little more than wrappers for other throwables.

Parameters
cause the cause (which is saved for later retrieval by the getCause() method). (A null value is permitted, and indicates that the cause is nonexistent or unknown.)

Protected Constructors

protected Error (String message, Throwable cause, boolean enableSuppression, boolean writableStackTrace)

Constructs a new error with the specified detail message, cause, suppression enabled or disabled, and writable stack trace enabled or disabled.

Parameters
message the detail message.
cause the cause. (A null value is permitted, and indicates that the cause is nonexistent or unknown.)
enableSuppression whether or not suppression is enabled or disabled
writableStackTrace whether or not the stack trace should be writable