Class Error
- java.lang.Object
-
- java.lang.Throwable
-
- java.lang.Error
- All Implemented Interfaces:
Serializable
- Direct Known Subclasses:
-
AnnotationFormatError
,AssertionError
,AWTError
,CoderMalfunctionError
,FactoryConfigurationError
,FactoryConfigurationError
,IOError
,LinkageError
,SchemaFactoryConfigurationError
,ServiceConfigurationError
,ThreadDeath
,TransformerFactoryConfigurationError
,VirtualMachineError
public class Error extends Throwable
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.
- Since:
- 1.0
- See Also:
-
ThreadDeath
, Serialized Form
Constructor Summary
Modifier | Constructor | Description |
---|---|---|
Error() | Constructs a new error with | |
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. | |
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. |
Error(Throwable cause) | Constructs a new error with the specified cause and a detail message of |
Method Summary
Methods declared in class java.lang.Throwable
addSuppressed, fillInStackTrace, getCause, getLocalizedMessage, getMessage, getStackTrace, getSuppressed, initCause, printStackTrace, printStackTrace, printStackTrace, setStackTrace, toString
Methods declared in class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
Constructor Detail
Error
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 Throwable.initCause(java.lang.Throwable)
.
Error
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 Throwable.initCause(java.lang.Throwable)
.
- Parameters:
-
message
- the detail message. The detail message is saved for later retrieval by theThrowable.getMessage()
method.
Error
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 theThrowable.getMessage()
method). -
cause
- the cause (which is saved for later retrieval by theThrowable.getCause()
method). (Anull
value is permitted, and indicates that the cause is nonexistent or unknown.) - Since:
- 1.4
Error
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 theThrowable.getCause()
method). (Anull
value is permitted, and indicates that the cause is nonexistent or unknown.) - Since:
- 1.4
Error
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. (Anull
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 - Since:
- 1.7