public class Exception extends Throwable
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.
Error
, Serialized Formpublic 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 Throwable.initCause(java.lang.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 Throwable.initCause(java.lang.Throwable)
.
message
- the detail message. The detail message is saved for later retrieval by the Throwable.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.
message
- the detail message (which is saved for later retrieval by the Throwable.getMessage()
method).cause
- the cause (which is saved for later retrieval by the Throwable.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
).
cause
- the cause (which is saved for later retrieval by the Throwable.getCause()
method). (A null
value is permitted, and indicates that the cause is nonexistent or unknown.)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.
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 disabledwritableStackTrace
- whether or not the stack trace should be writableaddSuppressed, fillInStackTrace, getCause, getLocalizedMessage, getMessage, getStackTrace, getSuppressed, initCause, printStackTrace, printStackTrace, printStackTrace, setStackTrace, toString
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
© 1993–2017, Oracle and/or its affiliates. All rights reserved.
Documentation extracted from Debian's OpenJDK Development Kit package.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
Various third party code in OpenJDK is licensed under different licenses (see Debian package).
Java and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.