Java concurrency question

I read few articles about Java Threads but I am confused over one issue.
If I spawn a new thread (say "user thread") from my Main thread in which conditions will the Main thread wait for the user thread to complete the execution to exit the system?
My understanding was, once the user thread is spawned, Main thread will go ahead with its execution and if it reaches end point before the user thread finishes its task, it will simply exit causing premature end of the user thread.
I wrote a code to test it and realized that only if I exit Main thread with System.exit() function, the user thread ends prematurely. Otherwise the Main thread waits for the user thread to complete the execution (even without the join() method). In all the articles I read, this concept is not really clearly described or at least I have not picked it up properly. Could you guys please care to explain?

A thread can either be a daemon thread or a 'regular' thread. You control this through a setter method on Thread. By default threads are 'regular' threads.
When the main thread finishes execution, it will wait for all 'regular' threads to finish their execution first before the program exits. If these threads are not designed to finish, your program will hang waiting for them. If you only have daemon threads left running, the program will exit immediately.

Similar Messages

Question related to Java Concurrent Program

Hi Friends,
I have a basic question related to Java Concurrent Program in the Oracle application. I would like to know the how Java concurrent program is executed in Oracle applications.Also, want to know where can I find the document for the AOL packages for Java concurrent program. Document for packages like oracle.apps.fnd.cp.request.* , oracle.apps.fnd.util.*.
Please let me know.
-Thanks,
Satya

You may also check:
Note: 250964.1 - How to Register Sample Java Concurrent Program
https://metalink.oracle.com/metalink/plsql/ml2_documents.showDocument?p_database_id=NOT&p_id=250964.1
Note: 186301.1 - How to register and execute Java Concurrent Program ?in Oracle Applications R11i?
https://metalink.oracle.com/metalink/plsql/ml2_documents.showDocument?p_database_id=NOT&p_id=186301.1

Question on example from "Java concurrency in practice"

"Java concurrency in practice" 14.9 listing ( [Orig here|http://www.javaconcurrencyinpractice.com/listings/ThreadGate.java] ):
+...The condition predicate used by await is more complicated than simply testing isOpen. This is needed because if N threads are waiting at the gate at the time it is opened, they should all be allowed to proceed. But, if the gate is opened and closed in rapid succession, all threads might not be released if await examines only isOpen: by the time all the threads receive the notification, reacquire the lock, and emerge from wait, the gate may have closed again. So ThreadGate uses a somewhat more complicated condition predicate: every time the gate is closed, a "generation" counter is incremented, and a thread may pass await if the gate is open now or if the gate has opened since this thread arrived at the gate...+
public class ThreadGate {
    private boolean isOpen;
    private int generation;
    public synchronized void close() {
        isOpen = false;
    public synchronized void open() {
        ++generation;
        isOpen = true;
        notifyAll();
    public synchronized void await() throws InterruptedException {
        int arrivalGeneration = generation;
        while (!isOpen && arrivalGeneration == generation) {
            wait();
Question:
Guys, could anyone explain me
1) the work of code in term of "thread T1 waits, thread T2 closes..." the part arrivalGeneration == generation is unclear?
2) Why both english and french editions say "every time the gate is closed, a generation counter is incremented"? How this is possible?
3) Give an example how "the gate may have closed again" ? How this is possible?
I posted this in other forums, but never had any explanations. Thanks.
Edited by: maxim_2004 on Jul 14, 2010 9:19 AM

Generation is a counter of how many times the gate has opened. We use it to determine if the gate has opened since a waiting thread arrived. The criteria for a waiting thread to proceed is not, "Is the gate open now?" but rather "Has the gate opened at least once since this thread started waiting?"
Say you have N waiting threads and one controller thread. When the controller thread calls open(), we want all N waiting threads to be able to proceed. But the controller thread may call close() at any time, and depending on when he calls close(), how many waiting threads there are (that is, how large N is) and how the scheduler on that JVM/OS is operating, the controller thread may call close() before all of the waiting threads have completed the await() method.
So a waiting thread may be stuck in the while loop call wait(), and by the time he has been notified, gets CPU cycles, acquires the lock, and goes back to test isOpen, the gate may have opened and closed. But we want him to be able to go, just because the gate did open. We don't care if he didn't get through before it closed again--he's supposed to be able to go anyway.
Therefore, we don't just wait if the gate is closed. We wait if the number of times it has opened is the same as when we arrived. In other words we wait only, if it hasn't opened since this waiting thread arrived.
Gate opens 1st time. (generation = 1)
Gate closes.
Gate opens 2nd time. (gen = 2)
T2 arrives. (arrivalGen = 2)
T2 calls wait()
Gate opens 3rd time. (gen = 3)
Gate closes.
T2 gets CPU time and lock. Executes while test. Gate is closed. BUT gen=3 and arrivalGen=2, so even though the gate is closed now, it has opened since T2 arrived, so T2 is allowed to proceed (arrivalGen != gen)
Edited by: jverd on Jul 14, 2010 10:05 AM
Edited by: jverd on Jul 14, 2010 10:08 AM

Java Concurrent Program - connecting to MS SQL Server

Hi,
I hope this is correct forum to post this question.
I am writing a JCP which will connect to a MS SQL Server DB, pull data from a table and populate this data into a custome table in EBS (R12.1.1) database. But I am facing some issues.
When I run run this concurrent program from EBS, I get following exception message:
Wed Aug 08 01:18:04 GMT 2012: In openConection()
Wed Aug 08 01:18:04 GMT 2012: Before Loading Driver com.microsoft.jdbc.sqlserver.SQLServerDriver
Wed Aug 08 01:18:04 GMT 2012: openConection() ClassNotFoundException: java.lang.ClassNotFoundException: com.microsoft.jdbc.sqlserver.SQLServerDriver
Wed Aug 08 01:18:04 GMT 2012: Before Calling processPrintMachineRecords()
Wed Aug 08 01:18:04 GMT 2012: Exception:: java.lang.NullPointerException
Wed Aug 08 01:18:04 GMT 2012: In closeSQLServerConnection().......closing JDBC Connection
Wed Aug 08 01:18:04 GMT 2012: Connection object was null, hence skipping close
Wed Aug 08 01:18:04 GMT 2012: After Calling processPrintMachineRecords()
The I read somewhere on internet that I should set CLASSPATH in options field of concurrent program definition. So I provided classpath as follows:
-cp /rs01/u02/applmgr/utyeb02/apps/apps_st/appl/au/12.0.0/appsborg.zip:/rs01/u02/applmgr/utyeb02/apps/apps_st/comn/java/classes/apps.zip:/rs01/u02/applmgr/utyeb02/apps/apps_st/comn/java/classes/sqljdbc_4.0/enu/sqljdbc.jar
In this classpath sqljdbc.jar contains the classes for connecting to MS SQL Server DB. However after giving classpath like this I started getting different error:
Exception in thread "main" java.lang.NoClassDefFoundError: oracle/apps/fnd/cp/request/Run
Caused by: java.lang.ClassNotFoundException: oracle.apps.fnd.cp.request.Run
     at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
     at java.security.AccessController.doPrivileged(Native Method)
     at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
     at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
     at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:276)
     at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
     at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
It appears from the error message that after giving this CLASSPATH, program was not able to find the "Run" method itself. In otherwords, CLASSPATH screwed it further.
Can anybody please point out what am I doing wrong here?
Regards
Java Code:
package oracle.apps.custom.printmachine;
import java.sql.*;
import oracle.apps.fnd.cp.request.* ;
import java.io.*;
import oracle.apps.fnd.util.*;
public class PrintMachineInterface implements JavaConcurrentProgram {
public static final String M_SUCCESS = "SUCCESS";
public static final String M_ERROR = "ERROR";
public static final String M_WARNING = "WARNING";
int mRequestStatus = -1;
int max_number_of_records = 99999999;
private String mSqlServerHost = "mysqlserver.domain.com";
// Application Short Name
private String applName;
CpContext mCtx;
LogFile logFile;
OutFile outFile;
Connection mConn = null;
ReqCompletion lRC;
public PrintMachineInterface(){
// if no parameter value is specified for APPLNAME then use FND
//as default value
applName = "FND";
private void logMessage(String str) {
java.util.Date now = new java.util.Date();
logFile.writeln(now.toString() + ": " + str, LogFile.STATEMENT);
static String mInsertRecord = " Declare " + " BEGIN "
+ " INSERT INTO XXGFN_GBL_CE_PM_STAGE(ID, KEY, FILENAME, PRINTED_AT, CREATED_AT, DOCTYPE, LANGUAGE, OU, TRX_ID, DOC_ID, REQ_ID, TEMPLATE, PAGES, DOC_TEXT, TIMES_RECEIVED)"
+ " VALUES (:1, :2, :3, :4, :5, :6, :7, :8, :9, :10, :11, :12, :13, substr(:14,2000), :15);"
+ " COMMIT;"
+ " END;";
static Connection con = null;
public void openConection() {
logMessage( "In openConection()");
try {
logMessage( "Before Loading Driver com.microsoft.jdbc.sqlserver.SQLServerDriver");
Class.forName("com.microsoft.jdbc.sqlserver.SQLServerDriver");
logMessage( "After Loading Driver com.microsoft.jdbc.sqlserver.SQLServerDriver");
logMessage( "Attempting to connect to " + mSqlServerHost);
con = DriverManager.getConnection("jdbc:microsoft:sqlserver://" + mSqlServerHost + ":1433;User=sql_user;Password=sql_pwd");
logMessage( "After con assigned from getConnection(jdbc:microsoft:sqlserver://" + mSqlServerHost + ":1433;User=pm_dba_access;Password=*****");
} catch (java.lang.ClassNotFoundException e) {
logMessage("openConection() ClassNotFoundException: " + e);
} catch (SQLException ex) {
logMessage("openConection() SQLException: " + ex);
public void closeSQLServerConnection() {
try {
logMessage( "In closeSQLServerConnection().......closing JDBC Connection");
if (con != null)
logMessage( "Con is not null");
con.close();
logMessage( "Con Closed Successfully");
else
logMessage( "Connection object was null, hence skipping close");
} catch (SQLException ex) {
logMessage("SQLException: " + ex);
} catch (Exception ex) {
logMessage("Exception in closeSQLServerConnection() : " + ex);
private void populate_staging_table(
String p_id,
String p_key,
String p_filename,
String p_printed_at,
String p_created_at,
String p_doctype,
String p_language,
String p_ou,
String p_trx_id,
String p_doc_id,
String p_req_id,
String p_template,
String p_pages,
String p_doc_text,
String p_times_received
PreparedStatement lStmt = null;
logMessage("Populating data from PrintMachine history table");
try {
lStmt = mConn.prepareCall(mInsertRecord);
lStmt.setString(1, p_id);
lStmt.setString(2, p_key);
lStmt.setString(3, p_filename);
lStmt.setString(4, p_printed_at);
lStmt.setString(5, p_created_at);
lStmt.setString(6, p_doctype);
lStmt.setString(7, p_language);
lStmt.setString(8, p_ou);
lStmt.setString(9, p_trx_id);
lStmt.setString(10, p_doc_id);
lStmt.setString(11, p_req_id);
lStmt.setString(12, p_template);
lStmt.setString(13, p_pages);
lStmt.setString(14, p_doc_text);
lStmt.setString(15, p_times_received);
lStmt.execute();
lStmt.close();
} catch (SQLException s) {
logMessage("Exception thrown w/ error message: "
+ s.getMessage());
s.printStackTrace();
finally {
try {
if (lStmt != null)
lStmt.close();
} catch (SQLException e) {
logMessage("SQLException: " + e);
private void processPrintMachineRecords() {
int number_of_recs = 0;
try {
PreparedStatement stmt = con.prepareStatement("SELECT TOP 1000 ID, Key, Filename, PrintedAt, CreatedAt, Doctype, Language,OU, TransactionID, DocumentID, RequestID, Template, Pages, Documenttext, TimesReceived FROM PM_DATA.dbo.History" );
ResultSet rst = stmt.executeQuery();
while (rst.next()) {
number_of_recs++;
if (number_of_recs == max_number_of_records) break;
populate_staging_table(
rst.getString(1), rst.getString(2)
,rst.getString(3), rst.getString(4)
,rst.getString(5), rst.getString(6)
,rst.getString(7), rst.getString(8)
,rst.getString(9), rst.getString(10)
,rst.getString(11), rst.getString(12)
,rst.getString(13), rst.getString(14)
,rst.getString(15)
stmt.close();
rst.close();
mConn.commit();
} catch (SQLException ex) {
logMessage("SQLException: " + ex);
catch (Exception ex) {
logMessage("Exception:: " + ex);
closeSQLServerConnection();
public void runProgram(CpContext pCpContext) {
applName = "XXGFN";
String l_file_path = null;
mCtx = pCpContext;
//get handle on request completion object for reporting status
lRC = pCpContext.getReqCompletion();
// assign logfile
logFile = pCpContext.getLogFile();
// assign outfile
outFile = pCpContext.getOutFile();
// get the JDBC connection object
mConn = pCpContext.getJDBCConnection();
l_file_path = ((new File(outFile.getFileName())).getParent() == null ? ""
: (new File(outFile.getFileName())).getParent());
// get parameter list object from CpContext
ParameterList lPara = pCpContext.getParameterList();
while (lPara.hasMoreElements())
NameValueType aNVT = lPara.nextParameter();
if ( aNVT.getName().equals("APPLNAME") )
applName = aNVT.getValue();
/** openConection() Opens the connection to SQL Server Database*/
openConection() ;
logMessage("Before Calling processPrintMachineRecords()");
processPrintMachineRecords();
logMessage("After Calling processPrintMachineRecords()");
try{
setCompletion(ReqCompletion.NORMAL, "Request Completed Normal");
} catch (Exception e) {
setCompletion(ReqCompletion.ERROR, e.toString());
} finally {
pCpContext.releaseJDBCConnection();
* Sets the request completion status based on proper precedence. ERROR >
* WARNING > NORMAL
* @param pStatus
* Status of the request.
* @param pCompletionText
* Request's completion text.
public void setCompletion(int pStatus, String pCompletionText) {
if ((pStatus == ReqCompletion.ERROR)
|| ((pStatus == ReqCompletion.WARNING) && (mRequestStatus != ReqCompletion.ERROR))
|| ((pStatus == ReqCompletion.NORMAL)
&& (mRequestStatus != ReqCompletion.WARNING) && (mRequestStatus != ReqCompletion.ERROR))) {
mRequestStatus = pStatus;
lRC.setCompletion(pStatus, pCompletionText);
}

ok
i used Template.java as input
useful MOS:
How To Create a Java Concurrent Program? [ID 827563.1]
Java Concurrent Program FAQ [ID 827575.1]
i used
//goto ms sql server 2008r2
        try{
         Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
         con = java.sql.DriverManager.getConnection(
                                      "jdbc:sqlserver://1.2.3.4:1433;databaseName=test;selectMethod=cursor",
                                      "test", "test");
          if(con!=null) System.out.println("Connection Successful!");
        }catch(Exception e){
          e.printStackTrace();
          System.out.println("Error Trace in getConnection() : " + e.getMessage());
        }1.2.3.4 - ip of instance with sqlserver2008r2 :)
in your code
>
try {
logMessage( "Before Loading Driver com.microsoft.jdbc.sqlserver.SQLServerDriver");
Class.forName("com.microsoft.jdbc.sqlserver.SQLServerDriver");
logMessage( "After Loading Driver com.microsoft.jdbc.sqlserver.SQLServerDriver");
logMessage( "Attempting to connect to " + mSqlServerHost);
con = DriverManager.getConnection("jdbc:microsoft:sqlserver://" + mSqlServerHost + ":1433;User=sql_user;Password=sql_pwd");
logMessage( "After con assigned from getConnection(jdbc:microsoft:sqlserver://" + mSqlServerHost + ":1433;User=pm_dba_access;Password=*****");
} catch (java.lang.ClassNotFoundException e) {
logMessage("openConection() ClassNotFoundException: " + e);
} catch (SQLException ex) {
logMessage("openConection() SQLException: " + ex);
>
try my case for Driver and Connection
put result .class file to needed directory
put sqljdbc4.jar to /rs01/u02/applmgr/utyeb02/apps/apps_st/comn/java/lib
and for concurrent program option
-classpath /rs01/u02/applmgr/utyeb02/apps/apps_st/comn/java/classes:/rs01/u02/applmgr/utyeb02/apps/apps_st/appl/au/12.0.0/appsborg.zip:/rs01/u02/applmgr/utyeb02/apps/apps_st/comn/java/lib/sqljdbc4.jaralso useful mos:
Classpath Setting of Third Party Jar Files in R12 Java Concurrent Program (JCP) [ID 1292694.1]

Issue in Java concurrent program for Digital Signature Stamping

Hi All,
Im calling a Java concurrent program which does digital signature stamping on the PDF report generated.Program able to able to read the PDF file as input and also digital signature stored as file in the application but
ends in error in create signature method , need help in this regard.
Error:
Parameter 0 is Request id of with out Digital signature file
Parameter 1 is employee id of approver
Parameter:0:99203256
Parameter:1:1414603
$$$$ start query fileinfo with callable statment
programName>>>>>>>>BTPOPORPXML
$$$$ Without digital Signature file Name $$$
$/inst_top/finprod/apps/FINPROD_CPNQERPAAPZP10/logs/appl/conc/out/BTPOPORPXML_99203256_1.PDF
PFX File Reading Start
PFX File Reading Ends
PFX File size is: 6460 Byte size is: 6460
Elements present
java.lang.NullPointerException
at
com.lowagie.text.pdf.PdfSignatureAppearance.getAppearance
(Unknown Source)
at
com.lowagie.text.pdf.PdfSignatureAppearance.preClose
(Unknown Source)
at
com.lowagie.text.pdf.PdfSignatureAppearance.preClose
(Unknown Source)
at com.lowagie.text.pdf.PdfStamper.close(Unknown
Source)
at
btvl.oracle.apps.po.digsig.BTVLDigSign.runProgram
(BTVLDigSign.java:151)
at oracle.apps.fnd.cp.request.Run.main
(Run.java:157)
Edited by: 999033 on May 16, 2013 7:20 PM

Hi Charls,
I have successfully implemented at our end in 11i. Pl.try at your end.
v_request_id := FND_REQUEST.SUBMIT_REQUEST (passed your arguments... );
COMMIT;
IF NVL( v_request_id , 0 ) = 0 THEN
DBMS_OUTPUT.PUT_LINE( 'Item Assignment to Organization Program Not Submitted');
p_status := 'FAILURE' ;
p_err_msg := 'ERROR RAISED AFTER SUBMITTING THE IMPORT ITEM ORG.ASSIGNMENT CONCURRENT REQUEST ... ' ;
ELSE
v_finished := FND_CONCURRENT.WAIT_FOR_REQUEST
request_id => v_request_id,
interval => 0,
max_wait => 0,
phase => v_phase,
status => v_status,
dev_phase => v_request_phase,
dev_status => v_request_status,
message => v_message
LOOP
EXIT WHEN ( UPPER(v_request_phase) = 'COMPLETE' OR v_phase = 'C');
END LOOP;
HTH
Sanjay

Help needed for building report with execution method Java Concurrent prog

Hi,
I have saw a report like this:
The report has executable "XML Publisher Data Template Executable", short name as "XDODTEXE", application "XML Publisher",execution method "Java Concurrent program". Also the report has a XML publisher Data Template and Data definition and in the data definition a .xml file is attached.
I could not understand what is the data source?
Could anyone help me on how to build or update this type of report?
Is there any link or help docs which has proper step by step procedure to build this type of xml publisher report?
Please help.
Thanks.

The xml file which is attached to the data definition is the data source and it has sql queries and structure of xml file.
Check this out for step-by-step guidance.
http://www.oracle.com/technetwork/middleware/bi-publisher/overview/xmlebsrep-132947.pdf
http://apps2fusion.com/at/ps/51-prabhakar/262-xml-publisher-and-data-template-sql-query-to-develop-bi-publisher-reports
For more on data templates refer user guide
http://download.oracle.com/docs/cd/E10415_01/doc/bi.1013/e12187/T421739T434255.htm

How can i get the source code from java concurrent program in R12

Hi 2 all,
How can i get the source code from java concurrent program in R12? like , "AP Turnover Report" is java concurrent program, i need to get its source code to know its logic. how can i get its source code not the XML template?
Regards,
Zulqarnain

user570667 wrote:
Hi 2 all,
How can i get the source code from java concurrent program in R12? like , "AP Turnover Report" is java concurrent program, i need to get its source code to know its logic. how can i get its source code not the XML template?
Regards,
ZulqarnainDid you see old threads for similar topic/discussion? -- https://forums.oracle.com/forums/search.jspa?threadID=&q=Java+AND+Concurrent+AND+Source+AND+Code&objID=c3&dateRange=all&userID=&numResults=15&rankBy=10001
Thanks,
Hussein

How to call a BPEL process from Oracle Apps Java Concurrent program

Hello,
I need to trigger a BPEL process from Oracle Apps. Can anybody tell me how to do that? I have two triggering option--
1. On button click from a Form 6i screen
2. Using Java Concurrent program.
Thanks in advance.
Debkanta

I am not sure how concurrent program works, but may be one of the way might work out, let me know if Java Concurrent Program works a bit different way
- [if async] Through concurrent program, you can insert message token to db or aq, and BPEL can be instantiated from there
or
- If it supports pure java call, then you can look at multiple documents (e.g. http://www.oracle.com/technology/products/ias/bpel/pdf/orabpel-Tutorial7-InvokingBPELProcesses.pdf) to invoke your process
- You can also use oracle db utility to invoke soap operation and get the result back
HTH,
Chintan

Error occurred during execution of java concurrent program in R12.2 instance

Hi All,
The R12.2 instance is a cloned instance. I am getting the below error while compiling the java concurrent program in R12.2 instance.
Has anybody had this error before?
Any help or advice will be really appreciated.
Thanks in advance.
Kind regards,
Ranjan

Hi,
The error could be because of the XSD attributes.
In the Source message CustomerDetails, check the XSD attributes of the DataType CustNumber in the 'Detail' column in the IR. For example, it may have a pattern or whiteSpace or some other attribute.
Then check the input file contents for the CustNumber node. One of those values may not match these attributes.
Hope this helps,
Bhanu

Error finding/creating AM from Java Concurrent Program

Hi All,
Here is what I am attempting to do in a Java concurrent program
--------------- Code Start - Error description in the code snippet comments ---------------
public void runProgram(CpContext pCpContext)
DBTransactionImpl mDBTransactionImpl
= new DBTransactionImpl(pCpContext.getJDBCConnection());
OAApplicationModule am = null;
// At this point I tried to call various methods on DBTransactionImpl
// And each method call, causes the CP to error with a different exception
// Calling findApplicationModule() causes the following exception
// java.lang.NullPointerException
// at oracle.jbo.server.DBTransactionImpl.findApplicationModule(DBTransactionImpl.java:4840)
// at xxicon.oracle.apps.xbol.pa.cp.XXIconImportUnitsFrmXls.runProgram(XXIconImportUnitsFrmXls.java:101)
// at oracle.apps.fnd.cp.request.Run.main(Run.java:161)
am = mDBTransactionImpl.findApplicationModule(IMPORT_UNITS_AM_INS);
// Calling createApplicationModule() causes the following exception
// java.lang.NullPointerException
// at oracle.jbo.server.DBTransactionImpl.createApplicationModule(DBTransactionImpl.java:4954)
// at xxicon.oracle.apps.xbol.pa.cp.XXIconImportUnitsFrmXls.runProgram(XXIconImportUnitsFrmXls.java:109)
// at oracle.apps.fnd.cp.request.Run.main(Run.java:161)
am = mDBTrx.createApplicationModule( IMPORT_UNITS_AM_INS
,IMPORT_UNITS_AM_DEF);
// Calling isConnected() causes the following exception
// java.lang.NullPointerException
// at oracle.jbo.server.DBTransactionImpl.isConnected(DBTransactionImpl.java:4335)
// at xxicon.oracle.apps.xbol.pa.cp.XXIconImportUnitsFrmXls.runProgram(XXIconImportUnitsFrmXls.java:65)
// at oracle.apps.fnd.cp.request.Run.main(Run.java:161)
if (mDBTransactionImpl.isConnected())
// Log the fact that DBTrx is connected
--------------- Code End - Error description in the code snippet comments ---------------
Would someone be kind enough to tell me what is it that I am doing wrong here?
Thanks a ton!
KH
Message was edited by: Kiran
kiran.k.hegde

Kiran,
How did you convert/cast the CpContext into an AppsContext to supply to createRootAM?
Would you maybe share some more code?
Update
No need for that, a simple
public void runProgram( CpContext ctx )
String amName;
String methodName;
OAApplicationModuleFactory amF = new OAApplicationModuleFactory();
OAApplicationModule am = amF.createRootOAApplicationModule( ctx, amName );
am.invokeMethod( methodName );
will do...
Message was edited by:
TyskJohan

Calling Web service from Java Concurrent Program

Hi,
I created a Java concurrent program and created executable. Here is my code.
    public void runProgram(CpContext ctx) {
        String value = "Java Concurrent Program Testing";
        Hello hell = new Hello();
        String returnValue = hell.testURL(value);
        if(returnValue.equalsIgnoreCase("TRUE")){
            ctx.getLogFile().writeln("-- Java Concurrent Program Testing --", 0);
            ctx.getOutFile().writeln("-- Java Concurrent Program Testing --");
            ctx.getReqCompletion().setCompletion(ReqCompletion.NORMAL, "");
        else{
            ctx.getLogFile().writeln("-- Hello World! --", 0);
            ctx.getOutFile().writeln("-- Hello World! --");
            ctx.getReqCompletion().setCompletion(ReqCompletion.NORMAL, "");
    }testURL() call the web service and get the response. but when I am selecting View Output option I am always geting out put as
-- Hello World! --I tested the logic of calling web service. It giving me out put "true". Here is my Web service calling code
    public String testURL(String Value){
        HttpURLConnection httpConn = null;
        ByteArrayOutputStream bout = null;
        String setWebServiceURLResponse = "";
        String responseString="";
        String outputString = "";
        try{
            httpConn = getHttpConnection();
            bout = new ByteArrayOutputStream();
            String xmlInput = soapBodyStart +
            "<ns1:getTestURL>\n" +
            "            <ns1:URL>"+Value+"</ns1:URL>\n" +
            "        </ns1:getTestURL>"+
            soapBodyEnd;
            byte[] buffer = new byte[xmlInput.length()];
            buffer = xmlInput.getBytes();
            bout.write(buffer);
            byte[] b = bout.toByteArray();
            httpConn = setHttpConnectionRequest(b,httpConn);
            //Read the response.
            InputStreamReader isr = new InputStreamReader(httpConn.getInputStream());
            BufferedReader in = new BufferedReader(isr);
            //Write the SOAP message response to a String.
            while ((responseString = in.readLine()) != null) {
                outputString = outputString + responseString;
            //Parse the String output to a org.w3c.dom.Document and be able to reach every node with the org.w3c.dom API.
            Document document = parseXmlFile(outputString);
            String formattedSOAPResponse = formatXML(outputString);
            System.out.println("Formatted response = \n" +formattedSOAPResponse);
            //NodeList nodes = document.getElementsByTagName("setWebServiceURLResponse");
            //NodeList nodes = document.getElementsByTagName("getTestURLResponse");
             NodeList nodes = document.getElementsByTagName("ns0:getTestURLResponse");
            int len = nodes.getLength();
            System.out.println("Inside testURL Node Lenght = "+ len);
            for(int s=0; s<nodes.getLength() ; s++){
                Node authenticateResultNode = nodes.item(s);
                if(authenticateResultNode.getNodeType() == Node.ELEMENT_NODE){
                    Element authenticateResultElement = (Element)authenticateResultNode;
                    //NodeList authenticateResultValueNode = authenticateResultElement.getElementsByTagName("ns0:return");
                    //NodeList authenticateResultValueNode = authenticateResultElement.getElementsByTagName("return");
                     NodeList authenticateResultValueNode = authenticateResultElement.getElementsByTagName("ns0:return");
                    Element authenticateResultValue = (Element)authenticateResultValueNode.item(0);
                    NodeList textFNList = authenticateResultValue.getChildNodes();
                    //System.out.println("Authenticate Result : " + ((Node)textFNList.item(0)).getNodeValue().trim());
                     setWebServiceURLResponse = ((Node)textFNList.item(0)).getNodeValue();
                     //System.out.println("Authenticate Response in getAuthenticate method : " + authenticateresponse);
                }//end of if clause
            }//end of for loop with s var
            System.out.println("Inside setWebServcieURLToFile response = " + setWebServiceURLResponse);
        catch(Exception e){
            e.printStackTrace();
        return setWebServiceURLResponse;
    }Where I am going wrong ?
Regards,
Ajay Sharma

sample code:
static string url = "http://my.webservice.url"; ---------------> The actual web service URL
Call = new Call(url); --------------------------------------------------> The call object used by JAX-RPC
Object[] params = new Object[]{param1, param2};---------> build the call parameters
Boolean/Integer/Whatever result = call.invoke("method name", params);------>call the invoke method to get the result

Sourcing : Error while Running Java Concurrent Program

Hi All,
Navigations:
Application: Sourcing
Responsibility : Sourcing Buyer
Concurrent Program : Generate and Store Sourcing response spreadsheet
I am trying to run
Java Concurrent Program : Generate and Store Sourcing response spreadsheet in SRS Window,
it completed with Error status.
Please let me know How can I run this Concurrent Program with Normal status and able to view/save the Output.
Please provide resolution on this.

Thanks for your reply..
Program: Generate and Store Sourcing response spreadsheet
ShortName: PON_EXPORT_RESPONSE
Application: Sourcing
Executable: ExportResponseCp
Method: Java Concurrent Program
Responsibility : Sourcing Buyer.
Has this ever worked? If yes, any changes been done recently?
=> No
Is this the seeded concurrent program or a custom one?
=> Its seeded program.
EBS: R12.1.3
Login as Sourcing Buyer Responsibility :
When you create RFQ and then Close RFQ and then create Surrogate quote and after you Export the Spreadsheet in SelfService Pages it generates the output.
But if You run the concurrent program (Generate and Store Sourcing response spreadsheet) it errors out.
Error : Exception in thread main java .lang.stringIndexOutOfBoundException:
Thanks..

Java Concurrent Program .class file location

Hi frnds,
I need to know the .class file location of a java concurrent prog. I know the filename from concurrent program executables and my concurrent program filepath is oracle.apps.xxogl.f04.cp.file. But I dont know where the exact location of the file is. pls help me.
I searched for the same and found the following article in many places which doesnt seem to help me much.
http://geektalkin.blogspot.com/2008/03/oracle-apps-java-concurrent-program.html
pls help. thanks in advance.
Lisan

Hi;
pls file can be found like
/apps_st/appl/bom/12.0.0/patch/115/sql/
Contains SQL*Plus scripts used to upgrade data, and .pkh, .pkb, and .pls scripts to create PL /SQL stored procedures.
Regard
Helios

Java Concurrent Program Errors out

Hi All,
Request you to help me in this issue as this is on high priority.
we have registered a Java Concurrent Program Named Genus Merge Two P45 Pdf's which gives the output in pdf format.
The concurrent program errors out showing the log as follows :
GENUS Custom: Version : UNKNOWN
Copyright (c) 1979, 1999, Oracle Corporation. All rights reserved.
GEN_MERGE_TWO_PDFS module: Genus Merge Two P45 Pdf's
Current system time is 10-MAR-2010 07:10:43
Exception in static block of jtf.cache.appsimpl.AppsCacheLogger. Stack trace is: oracle.apps.fnd.common.AppsException: oracle.apps.fnd.common.PoolException: Exception creating new Poolable object.
     at oracle.apps.fnd.profiles.Profiles.getProfileOption(Profiles.java:1509)
     at oracle.apps.fnd.profiles.Profiles.getProfile(Profiles.java:362)
     at oracle.apps.fnd.profiles.ExtendedProfileStore.getSpecificProfileFromDB(ExtendedProfileStore.java:210)
     at oracle.apps.fnd.profiles.ExtendedProfileStore.getSpecificProfile(ExtendedProfileStore.java:169)
     at oracle.apps.fnd.profiles.ExtendedProfileStore.getProfile(ExtendedProfileStore.java:148)
     at oracle.apps.fnd.common.logging.DebugEventManager.configureUsingDatabaseValues(DebugEventManager.java:1201)
     at oracle.apps.fnd.common.logging.DebugEventManager.configureLogging(DebugEventManager.java:1044)
     at oracle.apps.fnd.common.logging.DebugEventManager.internalReinit(DebugEventManager.java:1013)
     at oracle.apps.fnd.common.logging.DebugEventManager.reInitialize(DebugEventManager.java:980)
     at oracle.apps.fnd.common.logging.DebugEventManager.reInitialize(DebugEventManager.java:967)
     at oracle.apps.fnd.common.AppsLog.reInitialize(AppsLog.java:570)
     at oracle.apps.fnd.common.AppsContext.initLog(AppsContext.java:593)
     at oracle.apps.fnd.common.AppsContext.initializeContext(AppsContext.java:570)
     at oracle.apps.fnd.common.AppsContext.initializeContext(AppsContext.java:524)
     at oracle.apps.fnd.common.AppsContext.<init>(AppsContext.java:292)
     at oracle.apps.fnd.common.WebAppsContext.<init>(WebAppsContext.java:1002)
     at oracle.apps.jtf.cache.ArchitectureWrapper.createAppsContextWithDBCFile(ArchitectureWrapper.java:143)
     at oracle.apps.jtf.cache.ArchitectureWrapper.createDefaultAppsContext(ArchitectureWrapper.java:107)
     at oracle.apps.jtf.cache.ArchitectureWrapper.createAppsContext(ArchitectureWrapper.java:96)
     at oracle.apps.jtf.cache.appsimpl.AppsCacheLogger.<clinit>(AppsCacheLogger.java:43)
     at oracle.apps.jtf.cache.appsimpl.AppsCacheEnvironment.getCacheLogger(AppsCacheEnvironment.java:67)
     at oracle.apps.jtf.cache.CacheManager.initCache(CacheManager.java:711)
     at oracle.apps.jtf.cache.CacheManager.<clinit>(CacheManager.java:378)
     at oracle.apps.fnd.cache.Cache.setCacheFullName(Cache.java:228)
     at oracle.apps.fnd.cache.Cache.initCache(Cache.java:114)
     at oracle.apps.fnd.cache.Cache.<init>(Cache.java:89)
     at oracle.apps.fnd.cache.AppsCache.<init>(AppsCache.java:86)
     at oracle.apps.fnd.cache.AolCaches.getCache(AolCaches.java:155)
     at oracle.apps.fnd.profiles.Profiles.<clinit>(Profiles.java:241)
     at oracle.apps.fnd.profiles.ExtendedProfileStore.init(ExtendedProfileStore.java:498)
     at oracle.apps.fnd.profiles.ExtendedProfileStore.<init>(ExtendedProfileStore.java:119)
     at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
     at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
     at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
     at java.lang.reflect.Constructor.newInstance(Constructor.java:494)
     at oracle.apps.fnd.common.AppsContext.instantiateProfileStore(AppsContext.java:3959)
     at oracle.apps.fnd.common.AppsContext.makeProfileStore(AppsContext.java:780)
     at oracle.apps.fnd.common.Context.setProfileStore(Context.java:767)
     at oracle.apps.fnd.common.Context.setProfileStore(Context.java:749)
     at oracle.apps.fnd.common.AppsContext.initializeContext(AppsContext.java:564)
     at oracle.apps.fnd.common.AppsContext.initializeContext(AppsContext.java:524)
     at oracle.apps.fnd.common.AppsContext.<init>(AppsContext.java:292)
     at oracle.apps.fnd.cp.request.CpContext.<init>(CpContext.java:141)
     at oracle.apps.fnd.cp.request.CpContext.<init>(CpContext.java:124)
     at oracle.apps.fnd.cp.request.Run.main(Run.java:127)
Caused by: oracle.apps.fnd.common.PoolException: Exception creating new Poolable object.
     at oracle.apps.fnd.common.Pool.createObject(Pool.java:1321)
     at oracle.apps.fnd.common.Pool.borrowObject(Pool.java:1062)
     at oracle.apps.fnd.security.DBConnObjPool.borrowObject(DBConnObjPool.java:752)
     at oracle.apps.fnd.security.AppsConnectionManager.borrowConnection(AppsConnectionManager.java:297)
     at oracle.apps.fnd.common.Context.borrowConnection(Context.java:1720)
     at oracle.apps.fnd.common.AppsContext.getPrivateConnectionFinal(AppsContext.java:2306)
     at oracle.apps.fnd.common.AppsContext.getPrivateConnection(AppsContext.java:2243)
     at oracle.apps.fnd.common.AppsContext.getJDBCConnection(AppsContext.java:2101)
     at oracle.apps.fnd.common.AppsContext.getJDBCConnection(AppsContext.java:1910)
     at oracle.apps.fnd.common.AppsContext.getJDBCConnection(AppsContext.java:1754)
     at oracle.apps.fnd.common.AppsContext.getJDBCConnection(AppsContext.java:1767)
     at oracle.apps.fnd.common.Context.getJDBCConnection(Context.java:1453)
     at oracle.apps.fnd.cache.GenericCacheLoader.load(GenericCacheLoader.java:168)
     at oracle.apps.fnd.profiles.Profiles.getProfileOption(Profiles.java:1500)
     ... 44 more
Caused by: java.lang.AbstractMethodError: oracle.sql.LnxLibThin.lnxnuc([BILjava/lang/String;)Ljava/lang/String;
     at oracle.sql.NUMBER.toInt(NUMBER.java:414)
     at oracle.jdbc.dbaccess.DBConversion.NumberBytesToInt(DBConversion.java:2959)
     at oracle.jdbc.driver.OracleStatement.getIntValue(OracleStatement.java:4596)
     at oracle.jdbc.driver.OracleResultSetImpl.getInt(OracleResultSetImpl.java:536)
     at oracle.apps.fnd.security.ConnectionManager.setClientData(ConnectionManager.java:1497)
     at oracle.apps.fnd.security.ConnectionManager.dbConnect(ConnectionManager.java:1446)
     at oracle.apps.fnd.security.ConnectionManager.dbConnect(ConnectionManager.java:1325)
     at oracle.apps.fnd.security.AppsConnectionManager.makeGwyuidConn(AppsConnectionManager.java:884)
     at oracle.apps.fnd.security.AppsConnectionManager.getGwyuidConn(AppsConnectionManager.java:962)
     at oracle.apps.fnd.security.AppsConnectionManager.makeGuestConnection(AppsConnectionManager.java:780)
     at oracle.apps.fnd.security.DBConnObj.<init>(DBConnObj.java:246)
     at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
     at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
     at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
     at java.lang.reflect.Constructor.newInstance(Constructor.java:494)
     at oracle.apps.fnd.common.Pool.createObject(Pool.java:1308)
     ... 57 more
Exception in static block of jtf.cache.CacheManager. Stack trace is: oracle.apps.jtf.base.resources.FrameworkException: oracle.apps.fnd.common.PoolException: Exception creating new Poolable object.
     at oracle.apps.jtf.cache.CacheManager.initCache(CacheManager.java:718)
     at oracle.apps.jtf.cache.CacheManager.<clinit>(CacheManager.java:378)
     at oracle.apps.fnd.cache.Cache.setCacheFullName(Cache.java:228)
     at oracle.apps.fnd.cache.Cache.initCache(Cache.java:114)
     at oracle.apps.fnd.cache.Cache.<init>(Cache.java:89)
     at oracle.apps.fnd.cache.AppsCache.<init>(AppsCache.java:86)
     at oracle.apps.fnd.cache.AolCaches.getCache(AolCaches.java:155)
     at oracle.apps.fnd.profiles.Profiles.<clinit>(Profiles.java:241)
     at oracle.apps.fnd.profiles.ExtendedProfileStore.init(ExtendedProfileStore.java:498)
     at oracle.apps.fnd.profiles.ExtendedProfileStore.<init>(ExtendedProfileStore.java:119)
     at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
     at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
     at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
     at java.lang.reflect.Constructor.newInstance(Constructor.java:494)
     at oracle.apps.fnd.common.AppsContext.instantiateProfileStore(AppsContext.java:3959)
     at oracle.apps.fnd.common.AppsContext.makeProfileStore(AppsContext.java:780)
     at oracle.apps.fnd.common.Context.setProfileStore(Context.java:767)
     at oracle.apps.fnd.common.Context.setProfileStore(Context.java:749)
     at oracle.apps.fnd.common.AppsContext.initializeContext(AppsContext.java:564)
     at oracle.apps.fnd.common.AppsContext.initializeContext(AppsContext.java:524)
     at oracle.apps.fnd.common.AppsContext.<init>(AppsContext.java:292)
     at oracle.apps.fnd.cp.request.CpContext.<init>(CpContext.java:141)
     at oracle.apps.fnd.cp.request.CpContext.<init>(CpContext.java:124)
     at oracle.apps.fnd.cp.request.Run.main(Run.java:127)
Caused by: oracle.apps.jtf.base.resources.FrameworkException: oracle.apps.fnd.common.PoolException: Exception creating new Poolable object.
     at oracle.apps.jtf.base.resources.FrameworkException.convertException(FrameworkException.java:607)
     at oracle.apps.jtf.base.resources.FrameworkException.addException(FrameworkException.java:585)
     at oracle.apps.jtf.base.resources.FrameworkException.<init>(FrameworkException.java:66)
     at oracle.apps.jtf.base.resources.FrameworkException.<init>(FrameworkException.java:88)
     at oracle.apps.jtf.base.resources.FrameworkException.<init>(FrameworkException.java:202)
     at oracle.apps.jtf.base.resources.FrameworkException.<init>(FrameworkException.java:218)
     at oracle.apps.jtf.base.resources.FrameworkException.<init>(FrameworkException.java:249)
     ... 24 more
Exception in thread "main" oracle.apps.fnd.common.PoolException: Exception creating new Poolable object.
     at oracle.apps.fnd.common.Pool.createObject(Pool.java:1321)
     at oracle.apps.fnd.common.Pool.borrowObject(Pool.java:1062)
     at oracle.apps.fnd.security.DBConnObjPool.borrowObject(DBConnObjPool.java:752)
     at oracle.apps.fnd.security.AppsConnectionManager.borrowConnection(AppsConnectionManager.java:297)
     at oracle.apps.fnd.common.Context.borrowConnection(Context.java:1720)
     at oracle.apps.fnd.common.AppsContext.getPrivateConnectionFinal(AppsContext.java:2306)
     at oracle.apps.fnd.common.AppsContext.getPrivateConnection(AppsContext.java:2243)
     at oracle.apps.fnd.common.AppsContext.getJDBCConnection(AppsContext.java:2101)
     at oracle.apps.fnd.common.AppsContext.getLocalJDBCConnection(AppsContext.java:2481)
     at oracle.apps.fnd.common.AppsContext.getLocalJDBCConnection(AppsContext.java:2416)
     at oracle.apps.fnd.common.AppsContext.getLocalJDBCConnection(AppsContext.java:2397)
     at oracle.apps.fnd.common.ProfileCache.getProfileObject(ProfileCache.java:110)
     at oracle.apps.fnd.common.NativeProfileStore.getSpecificProfileFromDB(NativeProfileStore.java:375)
     at oracle.apps.fnd.common.NativeProfileStore.getProfile(NativeProfileStore.java:314)
     at oracle.apps.fnd.common.logging.DebugEventManager.configureUsingDatabaseValues(DebugEventManager.java:1201)
     at oracle.apps.fnd.common.logging.DebugEventManager.configureLogging(DebugEventManager.java:1044)
     at oracle.apps.fnd.common.logging.DebugEventManager.internalReinit(DebugEventManager.java:1013)
     at oracle.apps.fnd.common.logging.DebugEventManager.reInitialize(DebugEventManager.java:980)
     at oracle.apps.fnd.common.logging.DebugEventManager.reInitialize(DebugEventManager.java:967)
     at oracle.apps.fnd.common.AppsLog.reInitialize(AppsLog.java:570)
     at oracle.apps.fnd.common.AppsContext.initLog(AppsContext.java:593)
     at oracle.apps.fnd.common.AppsContext.initializeContext(AppsContext.java:570)
     at oracle.apps.fnd.common.AppsContext.initializeContext(AppsContext.java:524)
     at oracle.apps.fnd.common.AppsContext.<init>(AppsContext.java:292)
     at oracle.apps.fnd.cp.request.CpContext.<init>(CpContext.java:141)
     at oracle.apps.fnd.cp.request.CpContext.<init>(CpContext.java:124)
     at oracle.apps.fnd.cp.request.Run.main(Run.java:127)
Caused by: java.lang.AbstractMethodError: oracle.sql.LnxLibThin.lnxnuc([BILjava/lang/String;)Ljava/lang/String;
     at oracle.sql.NUMBER.toInt(NUMBER.java:414)
     at oracle.jdbc.dbaccess.DBConversion.NumberBytesToInt(DBConversion.java:2959)
     at oracle.jdbc.driver.OracleStatement.getIntValue(OracleStatement.java:4596)
     at oracle.jdbc.driver.OracleResultSetImpl.getInt(OracleResultSetImpl.java:536)
     at oracle.apps.fnd.security.ConnectionManager.setClientData(ConnectionManager.java:1497)
     at oracle.apps.fnd.security.ConnectionManager.dbConnect(ConnectionManager.java:1446)
     at oracle.apps.fnd.security.ConnectionManager.dbConnect(ConnectionManager.java:1325)
     at oracle.apps.fnd.security.AppsConnectionManager.makeGwyuidConn(AppsConnectionManager.java:884)
     at oracle.apps.fnd.security.AppsConnectionManager.getGwyuidConn(AppsConnectionManager.java:962)
     at oracle.apps.fnd.security.AppsConnectionManager.makeGuestConnection(AppsConnectionManager.java:780)
     at oracle.apps.fnd.security.DBConnObj.<init>(DBConnObj.java:246)
     at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
     at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
     at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
     at java.lang.reflect.Constructor.newInstance(Constructor.java:494)
     at oracle.apps.fnd.common.Pool.createObject(Pool.java:1308)
     ... 26 more
Start of log messages from FND_FILE
End of log messages from FND_FILE
oracle.apps.genus.utils.MergePdfs
Program exited with status 1
Executing request completion options...
Finished executing request completion options.
Concurrent request completed
Current system time is 10-MAR-2010 07:10:47
---------------------------------------------------------------------------

Hi,
FYI,
I am not sure about this error,
Use the following links, hope it may solve your problem,
http://oracleappstechnology.blogspot.com/2007/09/oracleappsfndcommonpoolexception.html
http://www.appsdbatechstuff.com/2008/06/java-workflow-mailer-does-not-startup.html
http://it.toolbox.com/wiki/index.php/Oracle_Apps_-JavaConcurrent_Program
Io exception: The Network Adapter could not establish the connection
Regards,
Hari

Java Concurrent Program - Output of BI publisher report

Hi,
I have a requirement of a Java Concurrent Program in Oracle apps to print the output of a BI Publisher Report. I need help in the following aspects
1. Setting up my Jdeveloper for writing the Java code
- I have downloaded xdo*,cabo*,jbo*,framework*,util* from $JAVA_TOP to my_classes (C:\JDeveloper\jdevhome\jdev\myclasses)
- However my import statements are not working yet.
2. I had a reference of similar program where I used it for generating PDF file (output of a XML publisher report) from OA Framework page
This is a controller class which was generating the PDF output. Link is given below
https://docs.google.com/leaf?id=0BxunA4-pnNcqNGY5NDNjNDItYjhlMi00ZDNlLTk1ZTctMWY4MjhjNTYwZDdh&hl=en_US
Any help !!!!!!!!!!

Hi Hussein,
Helpful Links.. Yes I had studied them before I posted this. But my requirement is bit complex.
Please check the following link
Attachment Print along with xml output - Need help !!!
Thanks,
Neil

Java concurrency question

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