IOException

extends Exception

java.lang.Object
↳	java.lang.Throwable
	↳	java.lang.Exception
		↳	java.io.IOException

Known Direct Subclasses

CharConversionException, CharacterCodingException, ClientProtocolException, ClosedChannelException, ConnectionClosedException, EOFException, FileLockInterruptionException, FileNotFoundException, HttpRetryException, InterruptedIOException, InvalidPropertiesFormatException, MalformedChunkCodingException, MalformedURLException, NoHttpResponseException, ObjectStreamException, ProtocolException, SSLException, SocketException, SyncFailedException, UTFDataFormatException, UnknownHostException, UnknownServiceException, UnsupportedEncodingException, ZipException

CharConversionException	This is the top level class for character conversion exceptions.
CharacterCodingException	Type of exception thrown when an encoding or decoding error occurs.
ClientProtocolException	Signals an error in the HTTP protocol.
ClosedChannelException	This exception is thrown when a channel is closed for the type of operation attempted.
ConnectionClosedException	Indicates that a connection has been closed.
EOFException	This End Of File (EOF) exception is thrown when a program encounters the end of a file or stream during an operation.
FileLockInterruptionException	Thrown when thread was interrupted while waiting to acquire a file lock.
FileNotFoundException	This IO exception is thrown when a file specified by a program cannot be found.
HttpRetryException	The exception to be thrown when a request cannot be retried.
InterruptedIOException	This IO exception is thrown when a program reading or writing to a stream is interrupted.
InvalidPropertiesFormatException
MalformedChunkCodingException	Signals a malformed chunked stream.
MalformedURLException	This exception is thrown when a program attempts to create an URL from an incorrect specification.
NoHttpResponseException	Signals that the target server failed to respond with a valid HTTP response.
ObjectStreamException	This is the superclass of all exceptions that can happen when serializing or deserialing objects.
ProtocolException	An attempt to connect to a socket of the wrong type (stream or nonstream) will trigger this exception.
SSLException
SocketException	This SocketException may be thrown during socket creation or setting options, and is the superclass of all other socket related exceptions.
SyncFailedException	This IO exception is thrown when the method `sync()` in FileDescriptor failed to complete.
UTFDataFormatException	This IO exception is thrown when a program attempts to read a UTF-8 String and the encoding is incorrect.
UnknownHostException	This UnknownHostException is thrown when an IP address resolution is attempted and no host or resolver may be found.
UnknownServiceException	This UnknownServiceException is thrown when a particular service requested isn't support by the URL.
UnsupportedEncodingException	This IO exception is thrown when a program asks for a particular character converter and it is not available.
ZipException	This runtime exception is thrown by ZipFile and ZipInputStream when the file or stream is not a valid zip file.

Known Indirect Subclasses

AsynchronousCloseException, BindException, ClosedByInterruptException, ConnectException, ConnectTimeoutException, ConnectionPoolTimeoutException, HttpHostConnectException, HttpResponseException, InvalidClassException, InvalidObjectException, JarException, MalformedInputException, NoRouteToHostException, NotActiveException, NotSerializableException, OptionalDataException, PortUnreachableException, SSLHandshakeException, SSLKeyException, SSLPeerUnverifiedException, SSLProtocolException, SocketTimeoutException, StreamCorruptedException, UnmappableCharacterException, WriteAbortedException

AsynchronousCloseException	Thrown when the underlying channel for an IO operation is closed by another thread.
BindException	A BindException is thrown when a process cannot bind a local address/port, either because it is already bound or reserved by the OS.
ClosedByInterruptException	Thrown when a thread is interrupted in a blocking IO operation.
ConnectException	This ConnectException is thrown when a connection cannot be established to a remote host/port, because for instance a server was not listening.
ConnectTimeoutException	A timeout while connecting to an HTTP server or waiting for an available connection from an HttpConnectionManager.
ConnectionPoolTimeoutException	A timeout while waiting for an available connection from a connection manager.
HttpHostConnectException	A ConnectException that specifies the HttpHost that was being connected to.
HttpResponseException	Signals a non 2xx HTTP response.
InvalidClassException	A problem was found with the class of one of the objects being serialized or deserialized.
InvalidObjectException	The object graph loaded (deserialized) can be validated by a collection of validator objects.
JarException	This runtime exception is thrown when a problem occurs while reading a JAR file.
MalformedInputException	Thrown when a malformed input is encountered, for example, a byte sequence is illegal for the given charset.
NoRouteToHostException	The NoRouteToHostException may be thrown when attempting to connect to a remote machine and because of network fault or firewall, no route can be established.
NotActiveException	Some methods in ObjectInputStream and ObjectOutputStream can only be called from a nested call to readObject() or writeObject().
NotSerializableException	When an implementation of ObjectOutput.writeObject() is passed an object that is not serializable, it will throw this type of exception.
OptionalDataException	When readObject() encounters primitive types (int, char, etc) instead of an object instance in the input stream, this type of exception will be thrown.
PortUnreachableException
SSLHandshakeException
SSLKeyException
SSLPeerUnverifiedException
SSLProtocolException
SocketTimeoutException
StreamCorruptedException	When readObject() cannot read an object from the input stream due to missing information (cyclic reference that doesn't match previous instance or missing class descriptor for instance to be loaded) this type of exception is thrown.
UnmappableCharacterException	Thrown when an unmappable character for the given charset is encountered.
WriteAbortedException	This type of exception is thrown by readObject() when it detects an exception marker in the input stream.

Class Overview

This IO exception is thrown when a program encounters some sort I/O error. Details may be specified in the constructor or by one of the subclasses.

Summary

Public Constructors
	IOException() Constructs a new instance of this class with its walkback filled in.
	IOException(String detailMessage) Constructs a new instance of this class with its walkback and message filled in.

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Inherited Methods

From class java.lang.Throwable

Throwable	fillInStackTrace() Records in the receiver a stack trace from the point where this message was sent.
Throwable	getCause() Returns the cause of this Throwable, or null if there is no cause.
String	getLocalizedMessage() Returns the extra information message which was provided when the throwable was created.
String	getMessage() Returns the extra information message which was provided when the throwable was created.
StackTraceElement[]	getStackTrace() Returns an array of StackTraceElement.
Throwable	initCause(Throwable throwable) Initialize the cause of the receiver.
void	printStackTrace() Outputs a printable representation of the receiver's stack trace on the System.err stream.
void	printStackTrace(PrintWriter err) Outputs a printable representation of the receiver's stack trace on the PrintWriter specified by the argument.
void	printStackTrace(PrintStream err) Outputs a printable representation of the receiver's stack trace on the PrintStream specified by the argument.
void	setStackTrace(StackTraceElement[] trace) Sets the array of StackTraceElements.
String	toString() Returns a string containing a concise, human-readable description of the receiver.

From class java.lang.Object

Object	clone() Returns a new instance of the same class as the receiver, whose slots have been filled in with the values in the slots of the receiver.
boolean	equals(Object o) Compares the argument to the receiver, and returns true if they represent the same object using a class specific comparison.
void	finalize() Called by the virtual machine when there are no longer any (non-weak) references to the receiver.
final Class<? extends Object>	getClass() Returns the unique instance of java.lang.Class which represents the class of the receiver.
int	hashCode() Returns an integer hash code for the receiver.
final void	notify() Causes one thread which is `wait` ing on the receiver to be made ready to run.
final void	notifyAll() Causes all threads which are `wait` ing on the receiver to be made ready to run.
String	toString() Returns a string containing a concise, human-readable description of the receiver.
final void	wait(long time, int frac) Causes the thread which sent this message to be made not ready to run either pending some change in the receiver (as indicated by `notify` or `notifyAll`) or the expiration of the timeout.
final void	wait(long time) Causes the thread which sent this message to be made not ready to run either pending some change in the receiver (as indicated by `notify` or `notifyAll`) or the expiration of the timeout.
final void	wait() Causes the thread which sent this message to be made not ready to run pending some change in the receiver (as indicated by `notify` or `notifyAll`).

Public Constructors

public IOException ()

Constructs a new instance of this class with its walkback filled in.

public IOException (String detailMessage)

Constructs a new instance of this class with its walkback and message filled in.

Parameters

detailMessage	The detail message for the exception.

Jan	FEB	Mar
	19
2008	2009	2010

Interfaces

Classes