Send arraylist to swings from servlet

Hi,
I send string to jsp from swings using URL(pass as a query string)
And then call servet from jsp(submit some values to this servlet from jsp)
Now i want to send ArrayList to my swings ,
How it is,
i know call servlet from swings,retrive values from servlet to swings. This is two way communication,
But now my requirement is one way, i didn't call servlet directly from swings, i call from jsp
Help me,
Thanks in advance

Thanks for reply
i write code in my swing as
ArrayList pdetails;
URL url=new URL(getCodeBase()+"sample.jsp");
 URLConnection con =url.openConnection();
 con.setDoInput(true);
 con.setDoOutput(true);
 con.setUseCaches(false);
 OutputStream outstream = con.getOutputStream();
 ObjectOutputStream oos = new ObjectOutputStream(outstream);
 oos.writeObject(pdetails);
 oos.flush();
 oos.close();
 AppletContext context=getAppletContext();
 context.showDocument(url,"_blank");my jsp code is
<%@page import="java.io.*,java.util.*"%>
<%
ObjectInputStream inputFromApplet = null;
ArrayList transmitContent =null;
inputFromApplet = new ObjectInputStream(request.getInputStream());
System.out.println(inputFromApplet);
transmitContent = (ArrayList) inputFromApplet.readObject();
out.println(transmitContent);
%>
but i got an exception like this21:28:50,078 WARN [[jsp]] Servlet.service() for servlet jsp threw exception
java.io.EOFException
at java.io.ObjectInputStream$PeekInputStream.readFully(ObjectInputStream
.java:2232)
at java.io.ObjectInputStream$BlockDataInputStream.readShort(ObjectInputS
tream.java:2698)
at java.io.ObjectInputStream.readStreamHeader(ObjectInputStream.java:750
at java.io.ObjectInputStream.<init>(ObjectInputStream.java:268)
at org.apache.jsp.sample_jsp._jspService(org.apache.jsp.sample_jsp:52)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper
.java:322)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:3
14)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:173)
at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFi
lter.java:96)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:173)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperV
alve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextV
alve.java:178)
at org.jboss.web.tomcat.security.CustomPrincipalValve.invoke(CustomPrinc
ipalValve.java:54)
at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(Securit
yAssociationValve.java:174)
at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValv
e.java:74)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.j
ava:126)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.j
ava:105)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVal
ve.java:107)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.jav
a:148)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java
:868)
at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.p
rocessConnection(Http11BaseProtocol.java:663)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpo
int.java:527)
at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWor
kerThread.java:112)
at java.lang.Thread.run(Thread.java:595)

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