Exception - JRE Emulation | JRE Emulation
public class

Exception

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

Class Overview

The class Exception and its subclasses are a form of Throwable that indicates conditions that a reasonable application might want to catch.

The class Exception and any subclasses that are not also subclasses of RuntimeException are checked exceptions. Checked exceptions need to be declared in a method or constructor's throws clause if they can be thrown by the execution of the method or constructor and propagate outside the method or constructor boundary.

See Also

Summary

Public Constructors
Exception()
Constructs a new exception with null as its detail message.
Exception(String message)
Constructs a new exception with the specified detail message.
Exception(String message, Throwable cause)
Constructs a new exception with the specified detail message and cause.
Exception(Throwable cause)
Constructs a new exception 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
Exception(String message, Throwable cause, boolean enableSuppression, boolean writableStackTrace)
Constructs a new exception 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 Exception ()

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

public Exception (String message)

Constructs a new exception 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 Exception (String message, Throwable cause)

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

Note that the detail message associated with cause is not automatically incorporated in this exception'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 Exception (Throwable cause)

Constructs a new exception 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 exceptions that are little more than wrappers for other throwables (for example, PrivilegedActionException).

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 Exception (String message, Throwable cause, boolean enableSuppression, boolean writableStackTrace)

Constructs a new exception 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