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
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.
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 Java Language Specification:
-
11.2 Compile-Time Checking of Exceptions
- Since:
- 1.0
- See Also:
-
Constructor Summary
ConstructorsModifierConstructorDescriptionError()
Constructs a new error withnull
as its detail message.Constructs a new error with the specified detail message.Constructs a new error with the specified detail message and cause.protected
Constructs a new error with the specified detail message, cause, suppression enabled or disabled, and writable stack trace enabled or disabled.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 ofcause
). -
Method Summary
Methods declared in class Throwable
addSuppressed, fillInStackTrace, getCause, getLocalizedMessage, getMessage, getStackTrace, getSuppressed, initCause, printStackTrace, printStackTrace, printStackTrace, setStackTrace, toString
Modifier and TypeMethodDescriptionfinal void
addSuppressed
(Throwable exception) Appends the specified exception to the exceptions that were suppressed in order to deliver this exception.Fills in the execution stack trace.getCause()
Returns the cause of this throwable ornull
if the cause is nonexistent or unknown.Creates a localized description of this throwable.Returns the detail message string of this throwable.Provides programmatic access to the stack trace information printed byThrowable.printStackTrace()
.final Throwable[]
Returns an array containing all of the exceptions that were suppressed, typically by thetry
-with-resources statement, in order to deliver this exception.Initializes the cause of this throwable to the specified value.void
Prints this throwable and its backtrace to the standard error stream.void
Prints this throwable and its backtrace to the specified print stream.void
Prints this throwable and its backtrace to the specified print writer.void
setStackTrace
(StackTraceElement[] stackTrace) Sets the stack trace elements that will be returned byThrowable.getStackTrace()
and printed byThrowable.printStackTrace()
and related methods.toString()
Returns a short description of this throwable.Methods declared in class Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
Modifier and TypeMethodDescriptionprotected Object
clone()
Creates and returns a copy of this object.boolean
Indicates whether some other object is "equal to" this one.protected void
finalize()
Deprecated, for removal: This API element is subject to removal in a future version.Finalization is deprecated and subject to removal in a future release.final Class
<?> getClass()
Returns the runtime class of thisObject
.int
hashCode()
Returns a hash code value for this object.final void
notify()
Wakes up a single thread that is waiting on this object's monitor.final void
Wakes up all threads that are waiting on this object's monitor.final void
wait()
Causes the current thread to wait until it is awakened, typically by being notified or interrupted.final void
wait
(long timeoutMillis) Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.final void
wait
(long timeoutMillis, int nanos) Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
-
Constructor Details
-
Error
public Error()Constructs a new error withnull
as its detail message. The cause is not initialized, and may subsequently be initialized by a call toThrowable.initCause(Throwable)
. -
Error
Constructs a new error with the specified detail message. The cause is not initialized, and may subsequently be initialized by a call toThrowable.initCause(Throwable)
.- Parameters:
message
- the detail message. The detail message is saved for later retrieval by theThrowable.getMessage()
method.
-
Error
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
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 ofcause
). 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 disabledwritableStackTrace
- whether or not the stack trace should be writable- Since:
- 1.7
-