/* * Copyright (c) 1998, 2019, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions.
*/
staticvoid testClose() throws IOException { boolean error = true;
InetAddress addr = InetAddress.getLocalHost();
ServerSocket ss = new ServerSocket(0, 0, addr); int port = ss.getLocalPort();
Thread t = newThread(newThread("Close-Available-1") { publicvoid run() { try {
Socket s = new Socket(addr, port);
s.close();
} catch (Exception e) {
e.printStackTrace();
}
}
});
t.start();
Socket soc = ss.accept();
ss.close();
DataInputStream is = new DataInputStream(soc.getInputStream());
is.close();
try {
is.available();
} catch (IOException ex) {
error = false;
} if (error) thrownew RuntimeException("Available() can be called after stream closed.");
}
// Verifies consistency of `available` behaviour when EOF reached, both // explicitly and implicitly. staticvoid testEOF(boolean readUntilEOF) throws IOException {
System.out.println("testEOF, readUntilEOF: " + readUntilEOF);
InetAddress addr = InetAddress.getLoopbackAddress();
ServerSocket ss = new ServerSocket();
ss.bind(new InetSocketAddress(addr, 0), 0); int port = ss.getLocalPort();
try (Socket s = new Socket(addr, port)) {
s.getOutputStream().write(0x42);
s.shutdownOutput();
try (Socket soc = ss.accept()) {
ss.close();
InputStream is = soc.getInputStream(); int b = is.read(); assert b == 0x42; assert !s.isClosed(); if (readUntilEOF) {
b = is.read(); assert b == -1;
}
int a; for (int i = 0; i < 100; i++) {
a = is.available();
System.out.print(a + ", "); if (a != 0) thrownew RuntimeException("Unexpected non-zero available: " + a);
} assert !s.isClosed(); assert is.read() == -1;
}
}
System.out.println("\ncomplete");
}
// Verifies IOException thrown by `available`, on a closed input stream // that may, or may not, have reached EOF prior to closure. staticvoid testIOEOnClosed(boolean readUntilEOF) throws IOException {
System.out.println("testIOEOnClosed, readUntilEOF: " + readUntilEOF);
InetAddress addr = InetAddress.getLoopbackAddress();
ServerSocket ss = new ServerSocket();
ss.bind(new InetSocketAddress(addr, 0), 0); int port = ss.getLocalPort();
try (Socket s = new Socket(addr, port)) {
s.getOutputStream().write(0x43);
s.shutdownOutput();
try (Socket soc = ss.accept()) {
ss.close();
InputStream is = soc.getInputStream(); int b = is.read(); assert b == 0x43; assert !s.isClosed(); if (readUntilEOF) {
b = is.read(); assert b == -1;
}
is.close(); try {
b = is.available(); thrownew RuntimeException("UNEXPECTED successful read: " + b);
} catch (IOException expected) {
System.out.println("caught expected IOException:" + expected);
}
}
}
System.out.println("\ncomplete");
}
}
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