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sun.net.www.protocol.http

pack-priv Class EmptyInputStream

Located in compilation unit of sun.net.www.protocol.http.HttpURLConnection.

extends InputStream
Class Inheritance
An input stream that just returns EOF. This is for HTTP URLConnections that are KeepAlive && use the HEAD method - i.e., stream not dead, but nothing to be read.

Constructor Summary

AccessConstructor and Description
pack-priv
EmptyInputStream()

Method Summary

Modifier and TypeMethod and Description
public int
available()

Overrides java.io.InputStream.available.

Returns an estimate of the number of bytes that can be read (or skipped over) from this input stream without blocking, which may be 0, or 0 when end of stream is detected.

public int
read()

Implements abstract java.io.InputStream.read.

Reads the next byte of data from the input stream.

Inherited from java.io.InputStream:
closemarkmarkSupportednullInputStreamreadreadreadAllBytesreadNBytesreadNBytesresetskipskipNBytestransferTo

Constructor Detail

EmptyInputStreamback to summary
pack-priv EmptyInputStream()

Method Detail

availableback to summary
public int available()

Overrides java.io.InputStream.available.

Doc from java.io.InputStream.available.

Returns an estimate of the number of bytes that can be read (or skipped over) from this input stream without blocking, which may be 0, or 0 when end of stream is detected. The read might be on the same thread or another thread. A single read or skip of this many bytes will not block, but may read or skip fewer bytes.

Note that while some implementations of InputStream will return the total number of bytes in the stream, many will not. It is never correct to use the return value of this method to allocate a buffer intended to hold all data in this stream.

A subclass's implementation of this method may choose to throw an IOException if this input stream has been closed by invoking the close() method.

Annotations
@Override
readback to summary
public int read()

Implements abstract java.io.InputStream.read.

Doc from java.io.InputStream.read.

Reads the next byte of data from the input stream. The value byte is returned as an int in the range 0 to 255. If no byte is available because the end of the stream has been reached, the value -1 is returned. This method blocks until input data is available, the end of the stream is detected, or an exception is thrown.