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From "Vladimir Ivanov (JIRA)" <j...@apache.org>
Subject [jira] Created: (HARMONY-1235) [classlib][net] unexpected ClassCastException for ServerSocket.implAccept(Socket)
Date Mon, 21 Aug 2006 07:42:13 GMT
[classlib][net] unexpected ClassCastException for ServerSocket.implAccept(Socket)
---------------------------------------------------------------------------------

                 Key: HARMONY-1235
                 URL: http://issues.apache.org/jira/browse/HARMONY-1235
             Project: Harmony
          Issue Type: Bug
          Components: Classlib
            Reporter: Vladimir Ivanov


The method ServerSocket().implAccept() throws unexpected ClassCastException on Harmony.

===================== test.java =======================
import java.net.*;
import java.io.*;

public class test  {
    public static void main (String[] args) throws Exception {
        new testServerSocket().myimplAccept(new testSocket(new TestSocketImpl()));
    }
}

class TestSocketImpl extends SocketImpl {
    protected void create(boolean arg0) throws IOException {}
    protected void connect(String arg0, int arg1) throws IOException {}
    protected void connect(InetAddress arg0, int arg1) throws IOException {}
    protected void connect(SocketAddress arg0, int arg1) throws IOException {}
    protected void bind(InetAddress arg0, int arg1) throws IOException {}
    protected void listen(int arg0) throws IOException {}
    protected void accept(SocketImpl arg0) throws IOException {}
    protected InputStream getInputStream() throws IOException {return null;}
    protected OutputStream getOutputStream() throws IOException {return null;}
    protected int available() throws IOException {return 0;}
    protected void close() throws IOException {}
    protected void sendUrgentData(int arg0) throws IOException {}
    public void setOption(int arg0, Object arg1) throws SocketException {}
    public Object getOption(int arg0) throws SocketException {return null;}
}

class testSocket extends Socket {
   public testSocket(SocketImpl impl) throws SocketException {
     super(impl);
   }
}
class testServerSocket extends ServerSocket {
    public testServerSocket() throws Exception {
        super();
    } 
    public void myimplAccept(Socket s) throws Exception {
        super.implAccept(s);
    } 
}
===================================================

Output:
C:\tmp\tmp17>C:\jdk1.5.0_06\bin\java.exe -cp . -showversion test
java version "1.5.0_06"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_06-b05)
Java HotSpot(TM) Client VM (build 1.5.0_06-b05, mixed mode)

Exception in thread "main" java.net.SocketException: socket closed
        at java.net.PlainSocketImpl.socketAccept(Native Method)
        at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:384)
        at java.net.ServerSocket.implAccept(ServerSocket.java:450)
        at testServerSocket.myimplAccept(test.java:37)
        at test.main(test.java:6)

C:\tmp\tmp17>C:\jrockit-jdk1.5.0-windows-ia32\bin\java.exe -cp . -showversion test
java version "1.5.0"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0-b64)
BEA WebLogic JRockit(R) (build dra-38972-20041208-2001-win-ia32, R25.0.0-75, GC: System optimized
over throughput (initial strategy singleparpar))

java.net.SocketException: Connection aborted by peer
        at jrockit.net.SocketNativeIO.accept(ILjava.io.FileDescriptor;I)[B(Native Method)
        at jrockit.net.SocketNativeIO.accept(Ljava.io.FileDescriptor;Ljava.io.FileDescriptor;I)Ljrockit.net.InetAddressCache;(Unknown
Source)
        at java.net.AbstractSocketImpl.accept(Ljava.net.SocketImpl;)V(Unknown Source)
        at java.net.ServerSocket.implAccept(ServerSocket.java:450)
        at testServerSocket.myimplAccept(test.java:37)
        at test.main(test.java:6)

C:\tmp\tmp17>C:\harmony\classlib1.5\deploy\jdk\jre\bin\java.exe -cp . -showversion test
java version 1.5 (subset)

(c) Copyright 1991, 2006 The Apache Software Foundation or its licensors, as applicable.
Exception in thread "main" java.lang.ClassCastException: TestSocketImpl incompatible with
org.apache.harmony.luni.net.PlainSocketImpl
        at org.apache.harmony.luni.net.PlainSocketImpl.accept(PlainSocketImpl.java:94)
        at java.net.ServerSocket.implAccept(ServerSocket.java:252)
        at testServerSocket.myimplAccept(test.java:37)
        at test.main(test.java:6)


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