Socket.shutdownOutput() closes socket inside JVM

Question

Dear friends,
We have a java class which uses the Socket class. Our class does a Socket.shutdownOutput() to indicate that the sending of data is over and the reply may start. It works just fine outside Oracle, but when the class is loaded in the database the shutdownOutput() method apparently causes the socket to be closed. Below is a sample of the code and its output. The user has JAVAUSERPRIV and JAVASYSPRIV granted, and I even tried JAVA_ADMIN without success. The Oracle versions tested were 10.2.0.1 (Windows) and 10.2.0.2 (AIX). Does anybody know what can be happening ? Thanks in advance.
Code:
Socket sockICM = new Socket("192.168.1.133", 5010);
byte byxml[] = hmapICM.toXMLString().getBytes();
System.out.println("1");
InputStream isXmlOut = sockICM.getInputStream();
sockICM.getOutputStream().write(byxml);
System.out.println("1.5");
sockICM.shutdownOutput();
System.out.println("socket.isOutputShutdown(): " + sockICM.isOutputShutdown());
System.out.println("socket.isClosed(): " + sockICM.isClosed());
System.out.println("2");
byte b[] = new byte[1000];
InputStream isXmlOut = sockICM.getInputStream();
System.out.println("3");
ByteArrayOutputStream bos = new ByteArrayOutputStream();
System.out.println("4");
try
int q;
while((q = isXmlOut.read(b)) != -1)
bos.write(b, 0, q);
System.out.println("leu: " + bos.toString());
catch(Exception io){
System.out.println("err=" + io.toString());
Output:
1
1.5
socket.isOutputShutdown(): true
socket.isClosed(): false
2
3
4
err=java.net.SocketException: Socket is closed
/****************************************************/

Answer 1

Thank you for the answer, Kuassi, I am going to do that. One more piece of information is that my printStackTrace shows the following:
java.net.SocketException: Socket is closed
at java.net.SocketInputStream.socketRead0(Native Method)
at java.net.SocketInputStream.read(SocketInputStream.java:129)
at java.net.SocketInputStream.read(SocketInputStream.java:90)
at kiman.socktest.test(socktest:76)
Do you know what does the "Native Method" on second line mean ? I think my problem
is related to that somehow.